302074-4ZT493R00BB datasheet, PDF

Datasheet> All Categories > Passive components> The resistor> 302074-4ZT493R00BB

302074-4ZT493R00BB: DescriptionFixed Resistor, Metal Foil, 1W, 493ohm, 500V, 0.1% +/-Tol, -.2,.2ppm/Cel,; CategoryPassive components The resistor; File Size456KB，6 Pages; ManufacturerVishay; Websitehttp://www.vishay.com; Environmental Compliance

Download Datasheet Parametric View All

302074-4ZT493R00BB Overview

Fixed Resistor, Metal Foil, 1W, 493ohm, 500V, 0.1% +/-Tol, -.2,.2ppm/Cel,

302074-4ZT493R00BB Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	852948897
Reach Compliance Code	compliant
Country Of Origin	Israel
ECCN code	EAR99
YTEOL	10
structure	Hermetically Sealed
JESD-609 code	e3
Lead diameter	0.645 mm
Lead length	25.4 mm
Number of terminals	4
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Package diameter	12.7 mm
Package length	25.4 mm
Package form	4 Terminals
method of packing	Bulk
Rated power dissipation(P)	1 W
resistance	493 Ω
Resistor type	FIXED RESISTOR
series	HZ(OTHER)
technology	METAL FOIL
Temperature Coefficient	0.2 ppm/°C
Terminal surface	Tin (Sn)
Tolerance	0.1%
Operating Voltage	500 V

Preview

Download Datasheet

View All

HZ Series (Z-Foil) with Zero TCR

Vishay Foil Resistors

New Generation of Secondary Standards Hermetically Sealed Construction Ultra High

Precision Z-Foil Technology Resistors with TCR of ± 0.2 ppm/°C, Tolerance of ± 0.001 %

and Load Life Stability of ± 0.002 % (Metrology, Laboratory, Instrumentation, Industrial)

FEATURES



Temperature coefficient of resistance (TCR):

± 0.2 ppm/°C typical (- 55 °C to + 125 °C,

+ 25 °C ref.). For ultra high performances

(instrumentation and metrology) please refer to

the last page



Resistance range: 5



to 1.1 M (higher or lower values of

resistance available)



Foil resistors are not restricted to standard values; specific

“as required” values can be supplied at no extra cost or

delivery (e.g. 1K2345 vs. 1K)



Power coefficient “R due to self heating”:

5 ppm at rated power with the Z-Foil technology



Tolerance:

to ± 0.001 % (10 ppm)



Load life stability to ± 0.002 % (20 ppm) at 25 °C, 2000 h

at rated power



Load life stability, can be considerably improved

through in-house stabilization



Shelf life stability: 2 ppm for at least 6 years

(unaffected by humidity)



Electrostatic discharge (ESD) up to 25 000 V



Power rating: 0.3 W to 2.5 W at + 25 °C (depending on

model - see table 2)



Non-inductive, non-capacitive design



Non hot spot design



Rise time: 1 ns effectively no ringing



Current noise: 0.010 µV

RMS

/V of applied voltage (< - 40 dB)



Thermal EMF: 0.05 µV/°C typical



Voltage coefficient: < 0.1 ppm/V



Thermal stabilization time < 1 s (nominal value achieved

within 10 ppm of steady state value)



Non-inductive: < 0.08 µH



Terminal finish available: lead (Pb)-free or tin/lead alloy



Impervious to harmful environments - oil filled



Prototype quantities available in just 5 working days

or sooner. For more information, please contact

foil@vishaypg.com



For better performances (values, TCR, tolerance, stability),

please contact us

INTRODUCTION

The Z-Foil based oil filled, hermetically sealed HZ Series

resistors represent an industry breakthrough. The hermetic

sealing eliminates the ingress of moisture and oxygen, while

the oil acts as a thermal conductor, thus eliminating

long-term degradation elements of unsealed resistors, while

at the same time allowing the device to accept short periods

of overload without degradation.

The Z-Foil technology provides a significant reduction of the

resistive components, sensitivity to ambient temperature

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

combined with the hermetic sealing and oil filling, the

HZ Series resistors become

the most precise and stable

resistors available.

They are used as the most precise

secondary standards for ultra precision metrology.

With accuracies of ± 0.001 % (10 ppm) and a resistance

range from 5



to 1.1 M and long term shelf life of less than

2 ppm, these devices are virtually secondary standards that

can be carried in sets for daily or periodic calibration of

factory measurement equipment.

The HZ Series is available with laboratory and metrology

level precision and long-term stability with additional

in-house oriented processes such as: chip stabilization,

special TCR plotting, additional treatments for ultra

stability and special post manufacturing operations

(PMO). (Please refer to the last page)

TABLE 1 - TCR VS. RESISTANCE VALUE

RESISTANCE VALUE

()

TYPICAL TCR AND

MAX. SPREAD

(- 55 °C to + 125 °C, + 25 °C ref.)

(ppm/°C)

± 0.2 ± 2

± 0.2 ± 3

± 0.2 ± 4

FIGURE 1 - SHELF LIFE - VHA518-11

12K9 VS. QHE

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

- 0.1

100 200 300 400 500 600 700 800 900 1000

100 to < 1M1

50 to < 100

5 to < 50

Note

• For maximum TCR < 1 ppm/°C, see VHP100 and contact

application engineering

Resistance Change (ppm)

Time (Days)

Document Number: 63120

Revision: 25-Mar-10

For any questions, contact:

foil@vishaypg.com

www.foilresistors.com

Recommended Resources

Microcontroller measurement circuit

30Wx2 high-fidelity power amplifier

Interface circuit between CMOS and ECL

High-precision AC-DC conversion circuit

The principle of AM modulation (collector modulation)

100 Questions on Microcontroller Application Programming Skills (Really Classic): 100 Questions on Microcontroller Application Programming Skills 1. What are the advantages and disadvantages of C language and assembly language when developing microcontrollers? Answer: Assembly lang...; songbo MCU

How to use IAR to build a 9B96 development environment?: As the title says, IAR6.1 and PDL-LM3S-3223 driver library have been installed, and there is no problem in compiling and debugging 1138 program, but how to develop 9B96 chip? Is there any project temp...; zxy1217 Microcontroller MCU

What is the function of the resistor between the input and output of 78L05?: I recently saw a design that connected a resistor between the input and output pins of 78L05. The reason for this was to expand the current, but I didn’t see this usage in the data sheet. I did a flyi...; Kkk- Power technology

RMS Power Dissipation (TA = 70°C) = 1.8W. Does this indicate the power consumption of the power chip when it is working?: RMS Power Dissipation (TA = 70°C) = 1.8W Does this indicate the power consumption of the power chip when it is working? Does it have anything to do with the chip output capability? From EEWORLD cooper...; WLJP Analogue and Mixed Signal

National Competition Paper Format: [i=s] This post was last edited by paulhyde on 2014-9-15 09:01 [/i] Share it with everyone...; 274131487 Electronics Design Contest

【Project source code】 LCD1602 data sheet: This article and design code were written by FPGA enthusiast Xiao Meige. Without the author's permission, this article is only allowed to be copied and reproduced on online forums, and the original au...; 小梅哥 FPGA/CPLD

Shortcut: E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA EB EC ED EE EF EG EH EI EJ EK EL EM EN EO EP EQ ER ES ET EU EV EW EX EY EZ F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE FF FG FH FI FJ FK FL FM FN FO FP FQ FR FS FT FU FV FW FX FY FZ G0 G1 G2 G3 G4 G5 G6 G7 G8 G9 GA GB GC GD GE GF GG GH GI GJ GK GL GM GN GO GP GQ GR GS GT GU GV GW GX GZ H0 H1 H2 H3 H4 H5 H6 H7 H8 HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ I1 I2 I3 I4 I5 I6 I7 IA IB IC ID IE IF IG IH II IK IL IM IN IO IP IQ IR IS IT IU IV IW IX J0 J1 J2 J6 J7 JA JB JC JD JE JF JG JH JJ JK JL JM JN JP JQ JR JS JT JV JW JX JZ K0 K1 K2 K3 K4 K5 K6 K7 K8 K9 KA KB KC KD KE KF KG KH KI KJ KK KL KM KN KO KP KQ KR KS KT KU KV KW KX KY KZ

Popular Components