datasheet
EEWORLDEEWORLDEEWORLD
Datasheet
Part Number

Keyword

Search
Keyword

Part Number

Search
Datasheet> All Categories > Passive components> The resistor> RCWP7225887RFMTP
PDF
Preview

RCWP7225887RFMTP

Description
Fixed Resistor, Metal Glaze/thick Film, 0.6W, 887ohm, 200V, 1% +/-Tol, 300ppm/Cel, Surface Mount, 2208, CHIP
CategoryPassive components    The resistor   
File Size110KB，4 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric View All

RCWP7225887RFMTP Overview

Fixed Resistor, Metal Glaze/thick Film, 0.6W, 887ohm, 200V, 1% +/-Tol, 300ppm/Cel, Surface Mount, 2208, CHIP

RCWP7225887RFMTP Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Objectid145040915926
package instructionCHIP
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresANTI-SULFUR
structureRectangular
JESD-609 codee0
Installation featuresSURFACE MOUNT
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-65 °C
Package height0.51 mm
Package length5.84 mm
Package formSMT
Package width1.91 mm
method of packingTR, EMBOSSED PLASTIC, 7 INCH
Rated power dissipation(P)0.6 W
Rated temperature70 °C
resistance887 Ω
Resistor typeFIXED RESISTOR
size code2208
surface mountYES
technologyMETAL GLAZE/THICK FILM
Temperature Coefficient300 ppm/°C
Terminal surfaceTin/Lead (Sn/Pb) - with Nickel (Ni) barrier
Terminal shapeWRAPAROUND
Tolerance1%
Operating Voltage200 V

RCWP7225887RFMTP Preview

RCWP
www.vishay.com
Vishay Dale
Thick Film Chip Resistors, Industrial / High Reliability
FEATURES
• Same
materials
and
construction
as
MIL-PRF-55342 chip resistors
Available
• Undergoes group A testing to MIL-PRF-55342
(precap visual inspection, thermal shock,
DC resistance, 100 % visual inspection) prior to
shipping
• Construction is sulfur impervious against a high
Available
sulfur environment (ASTM B 809-95 test
method)
• Termination: tin / lead wraparound termination
over nickel barrier. Also available with
lead
(Pb)-free wraparound terminations
• Capability to develop specific reliability programs
designed to customer requirements
• Size, value, packaging and materials can be customized
for special customer requirements
• Operating temperature range: -65 °C to +155 °C
• For zero ohm jumpers, see Vishay Dale’s RCWP Jumper
datasheet (www.vishay.com/doc?31017)
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
Note
*
This datasheet provides information about parts that are
RoHS-compliant and / or parts that are non RoHS-compliant. For
example, parts with lead (Pb) terminations are not RoHS-compliant.
Please see the information / tables in this datasheet for details
MATERIAL SPECIFICATIONS
Resistive element
Encapsulation
Substrate
Termination
Solder finish
Ruthenium oxide
Epoxy
96 % alumina
Solder-coated nickel barrier
Pure tin or tin / lead solder alloy
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
RCWP0201
RCWP0502
HISTORICAL
MODEL
RCWP-0201
RCWP-0502
CASE
SIZE
0201
0502
POWER RATING
(1)
P
70 °C
W
0.05
0.05
MAXIMUM
WORKING
VOLTAGE
(2)
V
30
40
RESISTANCE
RANGE
10 to 46
47 to 1M
1 to 9.1
10 to 22M
10 to 10M
1 to 9.1
10 to 22M
10 to 10M
1 to 9.1
10 to 22M
10 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
1 to 9.1
10 to 22M
10 to 10M
1 to 9.1
10 to 22M
10 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
TOLERANCE
±%
5, 10
1, 2, 5, 10
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
TEMPERATURE
COEFFICIENT
± ppm/°C
300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
RCWP0302
RCWP-0302
0302
0.04
15
RCWP0402
RCWP-0402
0402
0.05
30
RCWP0603
RCWP-0603
0603
0.10
50
RCWP0540
RCWP-540
0504
0.08
40
RCWP0550
RCWP-550
0505
0.125
50
RCWP0575
RCWP-575
0705
(3)
0.15
70
RCWP5100
RCWP-5100
1005
0.20
100
RCWP1206
RCWP-1206
1206
0.25
100
Revision: 10-Mar-17
Document Number: 31011
1
For technical questions, contact:
ff2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
RCWP
www.vishay.com
Vishay Dale
POWER RATING
(1)
P
70 °C
W
0.35
MAXIMUM
WORKING
VOLTAGE
(2)
V
125
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
CASE
SIZE
RESISTANCE
RANGE
1 to 5.1
5.6 to 22M
5.62 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
1 to 5.1
5.6 to 22M
5.62 to 10M
TOLERANCE
±%
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
2, 5, 10
1, 2, 5, 10
0.5
TEMPERATURE
COEFFICIENT
± ppm/°C
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
200, 300
100, 200, 300
100, 200, 300
RCWP5150
RCWP-5150
1505
RCWP1100
RCWP-1100
1010
0.50
100
RCWP1210
RCWP-1210
1210
0.50
200
RCWP7225
RCWP-7225
2208
0.60
200
RCWP2010
RCWP-2010
2010
0.80
200
RCWP2512
RCWP-2512
2512
1.0
200
Notes
• Consult factory for extended resistance range
(1)
Power rating depends on the maximum temperature at the solder point, the component placement density and the substrate material.
(2)
Continuous working voltage shall be
P
x
R
or maximum working voltage, whichever is less
(3)
MIL case size 0705 and EIA case size 0805 are dimensionally the same
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: RCWP510010K0GMWB (preferred part numbering format)
R
GLOBAL
MODEL
C
W
P
5
1
0
0
1
0
K
0
G
M
W
B
SPECIAL
RESISTANCE
VALUE
R=
K = k
M = M
10R0
= 10
1K30
= 1.3 k
1M00
= 1.0 M
0000
= 0
jumper
TOLERANCE
CODE
D
= ± 0.5 %
F
=±1%
G
=±2%
J
=±5%
K
= ± 10 %
Z
= 0
jumper
TEMPERATURE
COEFFICIENT
K
= 100 ppm
N
= 200 ppm
M
= 300 ppm
S
= Special,
0
jumper
PACKAGING CODE
(1)
(see Standard
Electrical
Specifications
table)
TP
= tin / lead, T/R, plastic tape
Blank = standard
(full reel; all except 0201 and 1210)
(dash number)
S3
= tin / lead, T/R, plastic tape
(up to 2 digits)
(1000 pieces; all except 0201 and 1210) from
1 to 99
as
WB
= tin / lead, waffle tray
applicable
S2
= tin / lead, T/R, plastic tape
99 = 0
jumper
(500 pieces; all except 0201 and 1210)
S6
= tin / lead, T/R, plastic tape
(300 pieces; all except 0201 and 1210)
UA
= tin / lead, T/R, paper tape
(full reel; 0201 and 1210 only)
UD
= tin / lead, T/R, paper tape
(1000 pieces; 0201 and 1210 only)
UC
= tin / lead, T/R, paper tape
(500 pieces; 0201 and 1210 only)
UB
= tin / lead, T/R, paper tape
(300 pieces; 0201 and 1210 only)
EA
= lead (Pb)-free, T/R (full)
EB
= lead (Pb)-free, T/R (1000 pieces)
ET
= lead (Pb)-free, waffle tray
EC
= lead (Pb)-free, T/R (500 pieces)
ED
= lead (Pb)-free, T/R (300 pieces)
Historical Part Number: RCWP-5100103G (will continue to be accepted)
RCWP-5100
HISTORICAL MODEL
103
RESISTANCE VALUE
G
TOLERANCE CODE
T03
PACKAGING CODE
Notes
• For additional information on packaging, refer to the Surface Mount Resistor Packaging document (www.vishay.com/doc?31543)
(1)
Tape and reel packaging with plastic tape standard for all case sizes except 0201 and 1210. For the 0201 and 1210 case sizes, the product
is only offered in tape and reel packaging with paper tape
Revision: 10-Mar-17
Document Number: 31011
2
For technical questions, contact:
ff2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
RCWP
www.vishay.com
Vishay Dale
DERATING CURVE
Rated Power in %
120
100
80
60
40
20
0
- 55
- 25
0
25
50
75
100
125
150 175
70 Ambient Temperature in °C
DIMENSIONS
in inches (millimeters)
B
D
C
A
E
GLOBAL
MODEL
RCWP0201
RCWP0302
RCWP0402
RCWP0502
RCWP0540
RCWP0550
RCWP0575
RCWP0603
RCWP1100
RCWP1206
RCWP1210
RCWP2010
RCWP2512
RCWP5100
RCWP5150
RCWP7225
A
(LENGTH)
0.024 ± 0.002
(0.61 ± 0.05)
0.034 ± 0.004
(0.86 ± 0.10)
0.039 ± 0.003
(0.99 ± 0.08)
0.055 ± 0.005
(1.40 ± 0.13)
0.055 ± 0.005
(1.40 ± 0.13)
0.055 ± 0.005
(1.40 ± 0.13)
0.080 ± 0.005
(2.03 ± 0.13)
0.063 ± 0.005
(1.60 ± 0.13)
0.105 ± 0.005
(2.67 ± 0.13)
0.125 ± 0.005
(3.18 ± 0.13)
0.126 ± 0.008
(3.20 ± 0.20)
0.197 ± 0.006
(5.00 ± 0.15)
0.250 ± 0.006
(6.35 ± 0.15)
0.105 ± 0.005
(2.67 ± 0.13)
0.155 ± 0.005
(3.94 ± 0.13)
0.230 ± 0.005
(5.84 ± 0.13)
B
(WIDTH)
0.012 ± 0.002
(0.30 ± 0.05)
0.021 ± 0.003
(0.53 ± 0.08)
0.020 ± 0.003
(0.51 ± 0.08)
0.023 ± 0.003
(0.58 ± 0.08)
0.040 ± 0.005
(1.02 ± 0.13)
0.050 ± 0.005
(1.27 ± 0.13)
0.050 ± 0.005
(1.27 ± 0.13)
0.032 ± 0.005
(0.81 ± 0.13)
0.100 ± 0.005
(2.54 ± 0.13)
0.063 ± 0.005
(1.60 ± 0.13)
0.098 ± 0.008
(2.50 ± 0.20)
0.098 ± 0.005
(2.49 ± 0.13)
0.124 ± 0.005
(3.15 ± 0.13)
0.050 ± 0.005
(1.27 ± 0.13)
0.050 ± 0.005
(1.27 ± 0.13)
0.075 ± 0.005
(1.91 ± 0.13)
C
(HEIGHT)
0.009 ± 0.002
(0.23 ± 0.05)
0.013 ± 0.003
(0.33 ± 0.08)
0.013 ± 0.003
(0.33 ± 0.08)
0.015 ± 0.003
(0.38 ± 0.08)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.018 ± 0.005
(0.46 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.022 ± 0.002
(0.55 ± 0.05)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
D
(TOP TERM)
0.006 ± 0.003
(0.15 ± 0.08)
0.007 ± 0.005
(0.18 ± 0.13)
0.010 ± 0.005
(0.25 ± 0.13)
0.010 ± 0.005
(0.25 ± 0.13)
0.010 ± 0.005
(0.25 ± 0.13)
0.010 ± 0.005
(0.25 ± 0.13)
0.016 ± 0.008
(0.41 ± 0.20)
0.012 ± 0.005
(0.30 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.016 ± 0.008
(0.40 ± 0.20)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
E
(BOTTOM TERM)
0.006 + 0.002 - 0.004
(0.15 + 0.05 - 0.10)
0.008 ± 0.005
(0.20 ± 0.13)
0.010 ± 0.005
(0.25 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.010 ± 0.005
(0.25 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.018 ± 0.008
(0.45 ± 0.20)
0.020 ± 0.005
(0.51 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.015 ± 0.005
(0.38 ± 0.13)
0.020 ± 0.005
(0.51 ± 0.13)
Revision: 10-Mar-17
Document Number: 31011
3
For technical questions, contact:
ff2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document
or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
More (Only the first 5 pages are displayed. Please Download Datasheet to view the full content.) >

Recommended Resources

Making a 30W feedback transformer switching power supply circuit based on KA7805 chip

Internal circuit of TDA1521

High-precision voltage stabilization circuit diagram

Touch delay self-extinguishing circuit

time measurement circuit

Computer motherboard circuit diagram 440GX_15

Commonly used development tools for FPGA design
FPGA development tools include software tools and hardware tools. Hardware tools mainly include FPGA development boards and download cables developed by FPGA manufacturers or third-party manufacturers...
小赛跑跑 Test/Measurement
Some thoughts on attending the TI seminar a few days ago
I have been busy lately. I attended a Texas Instruments seminar a few days ago. There weren't that many people there. Some people left in the afternoon, but I introduced medical electronics, power sup...
youluo TI Technology Forum
The design concept of MP3
Project development ideas1: General idea of MP3 based on development boardSince the development board does not have an operating system, we use the resources of the PC to make an MP3 interface. Then w...
fwk123456 Microcontroller MCU
Problems with hardware not existing and port not opening when using RAS dial-up
The rasdial return of the operating system is ce5.0 is 633, sometimes 608, the cdma module is in com1, but I can open com1 with the serial port debugging tool, and send AT commands. Everything is norm...
Joseph.Z Embedded System
About the problem of Silvaco software simulation LED epitaxy
I would like to ask if there are any experts in the group who use Silvaco TCAD to simulate discrete devices. Why is it that when I use this software to simulate GaN-based LEDs, the order of magnitude ...
瓷娃娃 Analog electronics
MSP430 seems unable to enter interrupt, no output can be observed
I want to make a program that samples through the MSP430F169 on-chip ADC and outputs through the on-chip DAC. I have referred to some books, but now the DAC can output normally, but the ADC cannot det...
GeorgeDong Microcontroller MCU
Shortcut:   00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

Popular Components

  1. AM29F200B_01
  2. 2200AAG2008F2KA
  3. 98451-80138LF
  4. 0081D-48-S1-01-3.0/2.3
  5. CE2225A-123-G101GCW
  6. Y4772657R000V9L
  7. 2225F5K00270JCB
  8. 70072050000.5
  9. AME8500CEFTAE20
  10. AME8822AEVU130Z
  11. 1TS002C-2700-5001-CT
  12. DB107S

Popular Articles

  1. 51 single chip microcomputer-simple application of timer
  2. The difference between vibrating rod level switch and tuning fork level switch
  3. Crystal Optech: The current capacity utilization rate is around 80%, and overall orders are climbing rapidly
  4. Opportunities in the automotive electronics industry in the next few years
  5. Alibaba leads the investment, Yuanrong Qixing receives USD 300 million in Series B financing
  6. 51 MCU-Servo Introduction
  7. Thermal expansion valve failure phenomenon_difference between internal and external balance of thermal expansion valve
  8. Geely's first 7nm high-end automotive chip in China is released! Its performance is close to Qualcomm 8155
  9. Silicon Labs is once again recognized for its excellent corporate management and innovative technology
  10. Sichuan should introduce 8th generation OLED production lines to build the largest OLED industrial base in China

Technical ResourceMore

  1. Research and application of semiconductor integrated circuit device production wastewater treatment technology
  2. LCD1602 Data
  3. The current status and prospects of the development of foldable reflector antennas
  4. Analysis and Design of Inverted Pendulum System Based on State Feedback Control
  5. ALLEGRO V16 Advanced Learning
  6. Six Thousand Tips on Computer Repair
  7. Philips TV memory data set
  8. Brushless DC Program
  9. Research on LED light source in tunnel lighting
  10. Embedded system development based on Windows Embedded

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

About Us Customer Service Contact Information Datasheet Sitemap LatestNews
Index Files: 2576  52  149  2608  2119  52  2  3  53  43 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号