EEWORLDEEWORLDEEWORLD

Part Number

Search

Y1745249R000T9L

Description
249 Ohms ±0.01% 0.25W,1/4W 芯片电阻 2512 J 形引线 非电感 金属箔
CategoryPassive components    The resistor   
File Size441KB,6 Pages
ManufacturerVishay Precision Group
Download Datasheet Parametric View All

Y1745249R000T9L Overview

249 Ohms ±0.01% 0.25W,1/4W 芯片电阻 2512 J 形引线 非电感 金属箔

Y1745249R000T9L Parametric

Parameter NameAttribute value
category
MakerVishay Precision Group
seriesSMR1DZ
PackageBulk
Tolerance±0.01%
Power(W)0.25W,1/4W
componentmetal foil
characteristicnon-inductive
Temperature Coefficient±0.2ppm/°C
Operating temperature-55°C ~ 175°C
Package/casing2512 J-lead
Supplier device packagingSMD, feet
size/dimensions0.236" long x 0.126" wide (5.99mm x 3.20mm)
Height - Installation (maximum)0.110"(2.79mm)
failure rate-
Number of terminals2
resistance249 Ohms
SMR1DZ / SMR3DZ (Z-Foil)
Ultra High Precision Z-Foil Molded Surface Mount Resistor
with TCR down to ±0.2 ppm/°C, PCR of ±5 ppm at Rated Power,
Flexible Terminations, and Load-Life Stability of ±0.005 % (50 ppm)
FEATURES AND BENEFITS
• Temperature coefficient of resistance (TCR):
±0.2 ppm/°C typical (–55°C to +125°C, +25°C ref.)
• Tolerance: to ±0.01%
• Power coefficient of resistance (PCR) “∆R due to self
heating": 5 ppm at rated power
• Flexible Terminations ensure minimal stress
transference from the PCB due to a difference in
thermal coefficient of expansions (TCE)
• Electrostatic discharge (ESD): at least to 25 kV
• Load-life stability: ±0.005% (70°C, 2000 h)
• Resistance range: 5
to 80 kΩ (for higher and lower
values, please contact us)
• Power rating: to 600 mW at +70°C
• Non-inductive, non-capacitive design
• Current noise: –40 dB
• Voltage coefficient: <0.1 ppm/V
• Non-inductive: <0.08
• Non hot spot design
• Terminal finishes available: lead (Pb)-free, tin/lead alloy
• Matched sets with TCR tacking are available upon
request
• For higher performances, please contact us
• Any value available within Resistance Range (e.g.,
1K234)
• For prototype samples, please contact
foil@vpgsensors.com
Any value at any tolerance
available within resistance range
R
2
R
1
V
in
-
+
V
out
SMRxDZ
APPLICATIONS
• Precision amplifiers
• High precision
instrumentation
• Medical
• Automatic test
equipment (ATE)
• Industrial
• Audio (high end stereo
equipment)
• EB application
• Military, airborne and
space
• Pulse application
• Measurement
instrumentation
INTRODUCTION
The SMRxDZ is an ultra high precision molded surface
mountable resistor offering all the elements of precision;
including low TCR, tight tolerance, long term stability,
low noise, low thermal EMF, and non-measurable voltage
coefficient. One of the important parameters influencing
stability is the Temperature Coefficient of Resistance
(TCR). Although the TCR of foil resistors is considered
Table 1—Tolerance and TCR vs. Resistance
Value
(–55°C to +125°C, +25°C Ref.)
Value
(Ω)
50 Ω to 80 kΩ
20 Ω to <50 Ω
10 Ω to <20 Ω
5 Ω to <10 Ω
Figure 1—Power Derating Curve
200
Percent of Rated Power (%)
175
150
125
100
75
50
25
0
–75
–25
+25
+75
+125
Ambient Temperature (°C)
+175
–55 °C
+ 70 °C
Standard
Tolerance
(1)
(%)
±0.01%
±0.02%
±0.05%
±0.1%
Typical TCR and
Max. Spread
(1)
(ppm/°C)
±0.2 ±1.8
±0.2 ±2.8
±0.2 ±4.8
±0.2 ±6.8
Note
(1)
For values <5 Ω and tighter performance, contact us.
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.
4151-EN
Rev 13-Aug-2020
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
1
Repost: Daily management of a small company boss
Daily management of a small business owner1. How do small companies retain key personnel?2. About authorization 3. Some money cannot be saved 5. About recruitment 6. The boss should play the good cop ...
fengzhang2002 Talking about work
AD Selection
The AC6603 used in the lab is too old and does not support WIN7 and 8. Now I want to replace it with a similar AD, but I don't know much about it. Do you have any suitable recommendations? Thank you...
为狂暴的鱼 Analog electronics
Can anyone introduce an active forum related to embedded systems and EDA?
Embedded linux arm fpga and other related, thank you, 100 points...
jishengbao Embedded System
kl25 driver installation
[i=s] This post was last edited by 不足论 on 2015-3-6 21:28 [/i] I believe everyone has recently heard about NXP's acquisition of Freescale. Now, Freescale is going to be a little popular again. In fact,...
不足论 NXP MCU
About the highlight display problem of 12864
[i=s] This post was last edited by paulhyde on 2014-9-15 04:22 [/i] I am working on a menu setting recently and hope to highlight the line 12864. According to the technical manual, it seems that the h...
sirxdd Electronics Design Contest
C2000 MCU Boot Process Analysis - Taking TMS320F28069 as an Example
The process from power-on reset to code running to the main function of each MCU is the MCU's boot. In fact, not only MCUs, but any other type of processor has such a process. Here, we take TI C2000 F...
fish001 Microcontroller MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2913  1563  1420  318  1373  59  32  29  7  28 
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