303143U-249RDBL datasheet, PDF

Datasheet> All Categories > Passive components> The resistor> 303143U-249RDBL

303143U-249RDBL: DescriptionFixed Resistor, Metal Foil, 0.6W, 249ohm, 245V, 0.5% +/-Tol, -.2,.2ppm/Cel, 3011; CategoryPassive components The resistor; File Size403KB，7 Pages; ManufacturerVishay; Websitehttp://www.vishay.com

Download Datasheet Parametric View All

303143U-249RDBL Overview

Fixed Resistor, Metal Foil, 0.6W, 249ohm, 245V, 0.5% +/-Tol, -.2,.2ppm/Cel, 3011

303143U-249RDBL Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Vishay
Reach Compliance Code	compliant
ECCN code	EAR99
structure	Rectangular
JESD-609 code	e0
Lead diameter	0.65 mm
Lead length	25.4 mm
lead spacing	3.81 mm
Manufacturer's serial number	303143
Number of terminals	2
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Package height	8.28 mm
Package length	7.62 mm
Package shape	RECTANGULAR PACKAGE
Package form	Radial
Package width	2.67 mm
method of packing	Bulk
Rated power dissipation(P)	0.6 W
resistance	249 Ω
Resistor type	FIXED RESISTOR
series	303143
size code	3011
technology	METAL FOIL
Temperature Coefficient	-.2,.2 ppm/°C
Terminal surface	Tin/Lead (Sn/Pb)
Tolerance	0.5%
Operating Voltage	245 V

Preview

Download Datasheet

View All

303143, 303143L (Z-Foil)

Vishay Foil Resistors

Models 303143 and 303143L (Ultra High Precision Fixed

Resistor Z-Foil Z201), Screen/Test Flow as modified

from S-311-P813 Proposed by NASA

FEATURES



Temperature coefficient of resistance (TCR):

± 0.05 ppm/°C typical (0 °C to + 60 °C)

± 0.2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C ref.)



Power coefficient of resistance “R due to self heating”:

± 5 ppm at rated power



Rated power: 0.6 W at 70 °C

0.3 W at 125 °C



Resistance tolerance: to ± 0.005 %



Load life stability: to ± 0.005 % at 70 °C, 2000 h at rated

power

INTRODUCTION

The 303143 (0.150" lead spacing) and 303143L (0.200"

lead spacing) Bulk Metal

Z-Foil resistors represent the 3

in a series of ultra-precision resistors since the first Bulk

Metal Foil resistor was introduced by Vishay in 1962. Each

represents an improvement on the earlier model. The TCR

slope of the 303143 and 303143L is 0.2 ppm/C (- 55 °C to

+ 125 °C, + 25 °C ref.) and is an order of magnitude better

than the original S102C. The Bulk Metal Z-Foil resistor is the

ultimate choice in the most demanding analog applications.

The Z-Foil technology provides a significant reduction of the

resistive component’s sensitivity to ambient temperature

variations (TCR) and applied power changes (PCR).

Designers can now guarantee a high degree of stability and

accuracy in fixed-resistor applications using solutions based

on Vishay’s revolutionary Z-Foil technology.

Our application engineering department is available to

advise and to make recommendations.



Resistance range: 10



to 100 k



Electrostatic discharge (ESD) up to 25 000 V



Non-inductive, non-capacitive design



Rise time: 1.0 ns effectively no ringing



Current noise: 0.010 µV

RMS

/V of applied voltage (< - 40 dB)



Thermal EMF: 0.1 µV/°C max.

0.05 µV/°C typical



Voltage coefficient: < 0.1 ppm/V



Non-inductive: 0.08 µH



Terminal finish: tin/lead alloy



Maximum working voltage: 245 V



Drop in replacement for S102C/K



Matched sets are available per request



For prototype units, append a “U” to the model number

(example: 303143U). These units include only the 100 %

screening requirements (table 4, page 4). For more

information, please contact

foil@vishaypg.com

FIGURE 1 - POWER DERATING CURVE

Percent of Rated Power at + 125 °C

200 %

175 %

150 %

125 %

100 %

75 %

50 %

25 %

- 75 - 50 - 25

- 55 °C

+ 70 °C

TABLE 1 - TOLERANCE AND TCR VS.

RESISTANCE

VALUE

100



to 100 k



to < 100



to < 80



to < 50



to < 25



TIGHTEST

ABSOLUTE

TOLERANCES

± 0.005 %

± 0.01 %

± 0.05 %

TYPICAL TCR AND

MAXIMUM SPREAD

- 55 °C TO + 125 °C

(+ 25 °C ref.)

± 0.2 ± 0.6 ppm/°C

± 0.2 ± 0.8 ppm/°C

± 0.2 ± 1.0 ppm/°C

± 0.2 ± 1.3 ppm/°C

± 0.2 ± 1.6 ppm/°C

Double Rated Power

Rated Power

Safe Operation

for < 150 ppm

ΔR

after

2000 h

Load Life

+ 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200

Ambient Temperature (°C)

Document Number: 63174

Revision: 29-Mar-10

For any questions, contact:

foil@vishaypg.com

www.foilresistors.com

Recommended Resources

MULTI-BEAM Plus power connector, do you know it?

Capacitor filter - to ground

Small two-cell battery booster MAX856 circuit diagram

Fourth-order low-pass filter circuit containing capacitive elements

Broadband Difet operational amplifier circuit OPA606

Computer motherboard circuit diagram 815 1_37

BeagleBone GPMC interface reads and writes FPGA dual-port RAM high-speed data acquisition DDS waveform generator: [align=left][font=宋体]We have completed the booting of BeagleBone from Nand Flash before, and then spent some time experimenting with the BeagleBone GPMC to read and write external memory. We expanded ...; 黑非拉 DSP and ARM Processors

Design of single chip keyboard debounce: Products made with microcontrollers or ARM often have keyboard input, and there is an unavoidable problem with keyboard input: keyboard debounce. See the figure belowWhen the key switch is closed or d...; 火辣西米秀 Microcontroller MCU

Why is the serial port sending data chaotic?: #include#include#define TX_SIZE 20 #define TX_STRING "Hello Zigbee"char TxData[TX_SIZE];void init_clock (void); void init_uart (void); void delay (unsigned mse); void uart_send_string (char *data, int...; 前门扫地 RF/Wirelessly

[step by step] ISE+Modelsim simulation is successful: Commemorating the first step of success, I finally got to the door, keep going!...; 残雪 FPGA/CPLD

The DLL export function name is inconsistent with the calling function name: Today I called a dll and prompted the following error when building it: error LNK2019: unresolved external symbol "__declspec(dllimport) public: static int __cdecl CAudioAdapter::PlayMedia(unsigned sh...; pzzh Embedded System

What software is needed for Ethernet data communication simulation: I am doing Ethernet communication experiment recently, but I don't have a development board, so ARM7, cm3 are fine, but I don't know what simulation software I need if possible. I use KEIL as the comp...; ssuperliang MCU

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components