datasheet
EEWORLDEEWORLDEEWORLD
Datasheet
Part Number

Keyword

Search
Keyword

Part Number

Search
Datasheet> All Categories > Passive components> The resistor> D12/CRCW0805-P5028K70.5%ET6E3
PDF
Preview

D12/CRCW0805-P5028K70.5%ET6E3

Description
Fixed Resistor, Metal Glaze/thick Film, 0.125W, 28700ohm, 150V, 0.5% +/-Tol, 50ppm/Cel, Surface Mount, 0805, CHIP, HALOGEN FREE AND ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size101KB，6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance
Download Datasheet Parametric View All

D12/CRCW0805-P5028K70.5%ET6E3 Overview

Fixed Resistor, Metal Glaze/thick Film, 0.125W, 28700ohm, 150V, 0.5% +/-Tol, 50ppm/Cel, Surface Mount, 0805, CHIP, HALOGEN FREE AND ROHS COMPLIANT

D12/CRCW0805-P5028K70.5%ET6E3 Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid8071818801
package instructionCHIP, HALOGEN FREE AND ROHS COMPLIANT
Reach Compliance Codecompliant
Country Of OriginIsrael
ECCN codeEAR99
YTEOL8
Other featuresRATED AC VOLTAGE (V): 150, SEMI-PRECISION
structureChip
JESD-609 codee3
Installation featuresSURFACE MOUNT
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-55 °C
Package height0.45 mm
Package length2 mm
Package shapeRECTANGULAR PACKAGE
Package formSMT
Package width1.25 mm
method of packingTR, PAPER, 13 INCH
Rated power dissipation(P)0.125 W
Rated temperature70 °C
GuidelineAEC-Q200
resistance28700 Ω
Resistor typeFIXED RESISTOR
size code0805
surface mountYES
technologyMETAL GLAZE/THICK FILM
Temperature Coefficient50 ppm/°C
Terminal surfaceTin (Sn) - with Nickel (Ni) barrier
Terminal shapeWRAPAROUND
Tolerance0.5%
Operating Voltage150 V

D12/CRCW0805-P5028K70.5%ET6E3 Preview

D/CRCW-P e3
www.vishay.com
Vishay
Lead (Pb)-Free Thick Film, Rectangular,
Semi-Precision Chip Resistors
FEATURES
• Low temperature coefficient (50 ppm/K) and
tight tolerances (± 0.25 %)
• Pure tin plating provides compatibility with
lead (Pb)-free and lead containing soldering
processing
• Metal glaze on high quality ceramic
• AEC-Q200 qualified
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
STANDARD ELECTRICAL SPECIFICATIONS
CASE
SIZE
INCH
CASE
SIZE
METRIC
POWER
RATING
P
70
W
LIMITING
ELEMENT
VOLTAGE
U
max.
AC
RMS
/DC
V
50
TEMPERATURE
COEFFICIENT
ppm/K
± 100
± 50
± 100
D11/CRCW0603-P
0603
1608
0.1
75
± 50
± 100
D12/CRCW0805-P
0805
2012
0.125
150
± 50
± 100
D25/CRCW1206-P
1206
3216
0.25
200
± 50
± 100
± 50
± 100
± 50
± 100
± 50
± 100
± 50
TOLERANCE
%
RESISTANCE
RANGE
1R to 1M1
100R to 1M
1R to 10M
100R to 1M
100R to 10M
10R to 10M
100R to 1M
100R to 10M
10R to 10M
100R to 1M
100R to 10M
100R to 1M
100R to 1M
100R to 2M2
100R to 2M2
10R to 10M
100R to 10M
10R to 10M
100R to 10M
E24; E96
E24; E96
E24; E96
E24; E96
E24; E96
E24; E96
E24; E96
MODEL
SERIES
D10/CRCW0402-P
0402
1005
0.063
± 0.5
± 0.25, ± 0.5, ± 1
± 0.5, ± 0.25
± 0.25
± 0.5, ± 1
± 0.5
± 0.25
± 0.5, ± 1
± 0.5
± 0.25
± 0.5, ± 1
± 0.5
± 0.5, ± 1
± 0.5
± 0.5, ± 1
± 0.5
± 0.5, ± 1
± 0.5
± 0.5, ± 1
E24; E96
CRCW1210-P
CRCW1218-P
CRCW2010-P
CRCW2512-P
1210
1218
2010
2512
3225
3246
5025
6332
0.5
1.0
0.75
1.0
200
200
400
500
Notes
• These resistors do not feature a limited lifetime when operated within the limits of rated dissipation, permissible operating voltage and
permissible film temperature. However, the resistance typically increase due to the resistor’s film temperature over operating time generally
known as drift. The drift may exceed the stability requirements of an individual application circuit and thereby limits the functional time.
• Marking and packaging: See datasheet “Surface Mount Resistor Marking” (www.vishay.com/doc?20020).
• Power rating depends on the max. temperature at the solder point, the component placement density and the substrate material.
Revision: 07-Apr-14
Document Number: 20036
1
For technical questions, contact:
thickfilmchip@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
D/CRCW-P e3
www.vishay.com
Vishay
TECHNICAL SPECIFICATIONS
PARAMETER
Rated Dissipation at
P
70 (1)
Operating Voltage
U
max.
AC
RMS
/DC
Insulation Voltage
U
ins
(1 min)
Insulation Resistance
Operating Temperature Range
Failure Rate
Weight
UNIT
W
V
V
°C
h
-1
mg
0.65
2
5.5
D10/
D11/
D12/
D25/
CRCW1210-P CRCW1218-P CRCW2010-P CRCW2512-P
CRCW0402-P CRCW0603-P CRCW0805-P CRCW1206-P
0.063
50
75
0.1
75
100
0.125
150
200
0.25
200
300
> 10
9
- 55 to + 155
< 0.1 x 10
-9
10
16
29.5
25.5
40.5
0.5
200
300
1.0
200
300
0.75
400
300
1.0
500
300
Note
(1)
The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heat flow support of the
printed-ciruit board (thermal resistance). The rated dissipation applies only if the permitted film temperature of 155 °C is not exceeded.
PART NUMBER AND PRODUCT DESCRIPTION
PART NUMBER: CRCW040275R0DKEDP
C
R
C
W
0
4
0
2
7
5
R
0
D
K
E
D
P
MODEL
CRCW0402
CRCW0603
CRCW0805
CRCW1206
CRCW1210
CRCW1218
CRCW2010
CRCW2512
RESISTANCE
R
= Decimal
K
= Thousand
M
= Million
TOLERANCE
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
TCR
H
= ± 50 ppm/K
K
= ± 100 ppm/K
PACKAGING
EA, EB,
EC, ED,
EE, EF,
EG, EH,
EI, EL
EK
SPECIAL
P
=
Semi-Precision
PRODUCT DESCRIPTION: D10/CRCW0402-P 100 75R 0.5 % ET7 e3
D10/CRCW0402-P
MODEL
D10/CRCW0402-P
D11/CRCW0603-P
D12/CRCW0805-P
D25/CRCW1206-P
CRCW1210-P
CRCW1218-P
CRCW2010-P
CRCW2512-P
100
TCR
± 50
ppm/K
± 100
ppm/K
75R
RESISTANCE
49K9
= 49.9 k
5R1
= 5.1
0.5 %
TOLERANCE
± 0.25 %
± 0.5 %
±1%
ET7
PACKAGING
ET1, ET2,
ET3, ET4,
ET5, ET6,
ET7, ET8,
ET9, EF4,
E02, E67,
E82
e3
LEAD (Pb)-FREE
e3
= Pure tin
termination
finish
Revision: 07-Apr-14
Document Number: 20036
2
For technical questions, contact:
thickfilmchip@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
D/CRCW-P e3
www.vishay.com
Vishay
QUANTITY
10 000
50 000
5000
10 000
20 000
50 000
5000
10 000
20 000
5000
10 000
20 000
5000
10 000
20 000
5000
10 000
20 000
4000
4000
2000
4000
Blister tape acc. to
IEC 60068-3
Type II
12 mm
12 mm
12 mm
4 mm
4 mm
8 mm
4 mm
12 mm
4 mm
8 mm
4 mm
Paper tape acc. to
IEC 60068-3
Type I
8 mm
4 mm
8 mm
4 mm
8 mm
2 mm
CARRIER TAPE
WIDTH
8 mm
PITCH
2 mm
REEL DIAMETER
180 mm/7"
330 mm/13"
180 mm/7"
180 mm/7"
285 mm/11.25"
330 mm/13"
180 mm/7"
285 mm/11.25"
330 mm/13"
180 mm/7"
285 mm/11.25"
330 mm/13"
180 mm/7"
285 mm/11.25"
330 mm/13"
180 mm/7"
285 mm/11.25"
330 mm/13"
180 mm/7"
180 mm/7"
180 mm/7"
PACKAGING
MODEL
D10/CRCW0402-P
CODE
ED = ET7
EE = EF4
EI = ET2
ED = ET3
EL = ET4
D11/CRCW0603-P
EE = ET8
EA = ET1
EB = ET5
EC = ET6
EA = ET1
D12/CRCW0805-P
EB = ET5
EC = ET6
EA = ET1
D25/CRCW1206-P
EB = ET5
EC = ET6
EA = ET1
CRCW1210-P
CRCW1218-P
CRCW2010-P
CRCW2512-P
EB = ET5
EC = ET6
EK = ET9
EF = E02
EG = E67
EH = E82
DIMENSIONS
in millimeters
SIZE
INCH METRIC
0402
0603
0805
1206
1210
1218
2010
2512
1005
1608
2012
3216
3225
3246
5025
6332
L
1.0 ± 0.05
1.55
2.0
3.2
+ 0.10
- 0.05
+ 0.20
- 0.10
+ 0.10
- 0.20
DIMENSIONS
W
0.5 ± 0.05
0.85 ± 0.1
H
T1
T2
0.2 ± 0.1
0.3 ± 0.2
0.3 ± 0.2
0.4 ± 0.2
0.4 ± 0.2
0.4 ± 0.2
0.6 ± 0.2
0.6 ± 0.2
SOLDER PAD DIMENSIONS
REFLOW SOLDERING
a
0.4
0.5
0.7
0.9
0.9
1.05
1.0
1.0
b
0.6
0.9
1.3
1.7
2.5
4.9
2.5
3.2
l
0.5
1.0
1.2
2.0
2.0
1.9
3.9
5.2
0.9
0.9
1.1
1.1
1.25
1.2
1.2
0.9
1.3
1.7
2.5
4.8
2.5
3.2
1.0
1.3
2.3
2.2
1.9
3.9
5.2
WAVE SOLDERING
a
b
l
0.35 ± 0.05 0.25 ± 0.05
0.45 ± 0.05
0.3 ± 0.2
0.3
+ 0.20
- 0.10
1.25 ± 0.15 0.45 ± 0.05
1.6 ± 0.15
2.5 ± 0.2
4.6 ± 0.15
2.5 ± 0.15
3.15 ± 0.15
0.55 ± 0.05
0.55 ± 0.05
0.55 ± 0.05
0.6 ± 0.1
0.6 ± 0.1
0.45 ± 0.2
0.45 ± 0.2
0.45 ± 0.2
0.6 ± 0.2
0.6 ± 0.2
3.2 ± 0.2
3.2
+ 0.10
- 0.20
5.0 ± 0.15
6.3 ± 0.2
Revision: 07-Apr-14
Document Number: 20036
3
For technical questions, contact:
thickfilmchip@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
D/CRCW-P e3
www.vishay.com
FUNCTIONAL PERFORMANCE
Fraction of Rated Dissipation
P
70
Vishay
100
%
50
0
- 50
0
50
100
°C
150
70
Ambient Temperature in
amb
TEST PROCEDURES AND REQUIREMENTS
IEC
EN 60115-1 60068-2
CLAUSE
TEST
METHOD
TEST
PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE (R)
STABILITY CLASS 1 OR BETTER
1 to 10 M
± 0.25 %; ± 0.5 %; ± 1 %
No flashover or breakdown
± (0.25 %
R
+ 0.05
)
Stability for product types:
D/CRCW-P e3
4.5
4.7
4.13
-
-
-
Resistance
Voltage proof
Short time overload
-
U
= 1.4 x
U
ins
; 60 s
U
= 2.5 x
P
70
x
R
2 x
U
max.;
duration acc. to style
Solder bath method;
Sn60Pb40
non-activated flux;
(235 ± 5) °C
(2 ± 0.2) s
4.17.2
58 (Td)
Solderability
Solder bath method;
Sn96.5Ag3Cu0.5
non-activated flux;
(245 ± 5) °C
(3 ± 0.3) s
4.8.4.2
4.32
4.33
-
21 (Uu
3
)
21 (Uu
1
)
Temperature
coefficient
Shear
(adhesion)
Substrate bending
(20/- 55/20) °C and
(20/125/20) °C
RR 1608 and smaller: 9 N
RR 2012 and larger: 45 N
Depth 2 mm;
3 times
30 min at - 55 °C;
30 min at 125 °C
5 cycles
1000 cycles
Good tinning ( 95 % covered)
no visible damage
Good tinning ( 95 % covered)
no visible damage
± 50 ppm/K; ± 100 ppm/K
No visible damage
No visible damage, no open circuit in bent position
± (0.25 %
R
+ 0.05
)
4.19
14 (Na)
Rapid change of
temperature
± (0.25 %
R
+ 0.05
)
± (1 %
R
+ 0.05
)
Revision: 07-Apr-14
Document Number: 20036
4
For technical questions, contact:
thickfilmchip@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
D/CRCW-P e3
www.vishay.com
Vishay
TEST PROCEDURES AND REQUIREMENTS
IEC
EN 60115-1 60068-2
CLAUSE
TEST
METHOD
TEST
PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE (R)
STABILITY CLASS 1 OR BETTER
1 to 10 M
Stability for product types:
D/CRCW-P e3
4.23
4.23.2
4.23.3
4.23.4
4.23.5
4.23.6
4.23.7
-
2 (Ba)
30 (Db)
1 (Aa)
13 (M)
30 (Db)
-
Climatic sequence:
Dry heat
Damp heat, cyclic
Cold
Low air pressure
Damp heat, cyclic
DC load
-
125 °C; 16 h
55 °C;
90 % RH;
24 h; 1 cycle
- 55 °C; 2 h
1 kPa; (25 ± 10) °C; 1 h
55 °C;
90 % RH;
24 h; 5 cycles
U
=
P
70
x
R
U
=
P
70
x
R
U
max.;
1.5 h on; 0.5 h off;
4.25.1
-
Endurance at 70 °C
70 °C; 1000 h
70 °C; 8000 h
4.18.2
58 (Td)
Resistance to
soldering heat
Flamability,
needle flame test
Damp heat,
steady state
Endurance at
upper category
temperature
Electrostatic
discharge
(human body model)
Component solvent
resistance
Solvent resistance
of marking
Vibration, endurance
by sweeping
Solder bath method
(260 ± 5) °C;
(10 ± 1) s
IEC 60695-11-5;
10 s
(40 ± 2) °C;
(93 ± 3) % RH;
56 days
155 °C, 1000 h
IEC 61340-3-1;
3 pos. + 3 neg. discharges;
ESD voltage acc. to size
Isopropyl alcohol;
50 °C; method 2
Isopropyl alcohol;
50 °C; method 1,
toothbrush
f = 10 Hz to 2000 Hz;
x, y, z
1.5 mm;
A
200 m/s
2
;
10 sweeps per axis
U
=
4.37
-
Periodic electric
overload
Single pulse high
voltage overload,
10 μs/700 μs
15 x
P
70
x
R
2 x
U
max.;
0.1 s on; 2.5 s off;
1000 cycles
± (1 %
R
+ 0.05
)
± (1 %
R
+ 0.05
)
± (2 %
R
+ 0.05
)
± (0.25 %
R
+ 0.05
)
4.35
-
No burning after 30 s
± (1 %
R
+ 0.05
)
4.24
78 (Cab)
4.25.3
-
± (1 %
R
+ 0.05
)
4.40
4.29
4.30
-
45 (XA)
45 (XA)
± (1 %
R
+ 0.05
)
No visible damage
Marking legible,
no visible damage
4.22
6 (Fc)
± (0.25 %
R
+ 0.05
)
± (1 %
R
+ 0.05
)
4.27
-
Û
= 10 x
P
70
x
R
2 x
U
max.;
10 pulses
± (1 %
R
+ 0.05
)
All tests are carried out in accordance with the following specifications:
• EN 60115-1, generic specification
• EN 140400, sectional specification
• EN 140401-802, detail specification
• IEC 60068-2-x, variety of environmental test procedures
Packaging of components is done in paper or blister tapes according to IEC 60286-3.
Revision: 07-Apr-14
Document Number: 20036
5
For technical questions, contact:
thickfilmchip@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
More (Only the first 5 pages are displayed. Please Download Datasheet to view the full content.) >

Recommended Resources

Manual temperature control circuit 7

Loop timing circuit

touch switch

Nokia 3650 mobile phone troubleshooting actual color picture (1)

Digital sine wave generator circuit

Circuit composed of ZHF-9901 and ZHJ-9902

STM32 Image Acquisition and Transmission
I just started learning STM32. I bought the ALIENTEK MiniSTM32 development board. I want to transplant uCOSII and realize image acquisition and transmission. The general idea is like this. I haven't t...
zhwh0303 ARM Technology
Digital electronics design help, just change
[table] [tr][td=63][align=center][align=center]Serial number[/align][/align][/td][td=46][align=right][align=center]L0[/align ][/align][/td][td=53][ali gn=right][align=center]L1[/align][/align][/td][td...
lsc201421 Integrated technical exchanges
GPRS dial-up, SOCKET can connect, IE and other programs cannot access the Internet
HI, everyone. I'm currently working on a WINCE5 project that requires GPRS and a SIM300 module as a MODEM. All the settings are OK. The problem now is that I can communicate normally using a small pro...
nanxiangzi Embedded System
New Year's Day interactive post: Truth or Tell.
At the end of the year, the forum is active: In response to the call [url=https://bbs.eeworld.com.cn/thread-363212-1-1.html]https://bbs.eeworld.com.cn/thread-363212-1-1.html[/url], open a thread, and ...
gaon Integrated technical exchanges
Please tell me what CPU to use to complete the following functions
1. Connect 4 serial ports 2. Use 220V power supply 3. Access the desktop SQL Server database. The operating system uses Windows CE. What CPU does the embedded motherboard use? What is the contact info...
wmdsummer Embedded System
Find the Difference - ModelSim crashes after PLI program is compiled and loaded
I wrote a pli program today. There are no problems in compiling and generating dll files. However, during the simulation loading process, modelsim crashed. Please analyze what this problem is and how ...
somanyww Embedded System
Shortcut:   S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components

  1. LPI5112R152711
  2. HPR221M1VK25V
  3. BLU1206ER-1130-AT15W
  4. 1.5KA7.5A
  5. LJT01RT-15-15PA(011)
  6. SEL3810H77.7600(T)
  7. CRCA12E0803333271R
  8. G07124G
  9. 2SB649A(TO-126C)
  10. BZX55B56-35_AX_10001
  11. ZMM5258C-T/R
  12. GGW0805UC068JGT

Popular Articles

  1. How should we fasten our seat belts for autonomous driving?
  2. CATL sodium-ion battery releases superior charging and low-temperature retention rates/industry chain
  3. Realme is going to use Dimensity 9000! It once made MediaTek's flagship SoC a thousand-yuan phone
  4. Giantec Semiconductor's new official website is online
  5. Parameters of zinc oxide arrester tester
  6. PLC's fast and accurate positioning control of stepper motors
  7. A brief discussion on the design and analysis of automotive wiring harnesses
  8. Epicor Launches Managed Hosting Services for Kinetic in China

Technical ResourceMore

  1. Application of frequency conversion signal isolation drive circuit for field-controlled power devices
  2. Research and design of a DC-DC boost converter based on voltage mode PFM control
  3. Research on photovoltaic grid-connected power regulation system and its control
  4. Design of Multi-mode PWM Flyback Converter
  5. [High frequency circuit related information]. Wiley.-.Ieee.-.Practical.Rf.System.Design.-.Egan
  6. ABB Switchgear Design Manual (11th Edition)
  7. LM2675-50 5V 2A high input DCDC regulated power supply, perfect sch+PCB
  8. STM32 official 1588 protocol routine modified version
  9. Drawing Assistant v1[1].0 cracked version.exe
  10. Si Shoukui Mathematical Modeling Algorithm Courseware

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

About Us Customer Service Contact Information Datasheet Sitemap LatestNews
Index Files: 1287  1027  273  2560  1441  26  21  6  52  30 
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