302074-5ZP249K00TB datasheet, PDF

Datasheet> All Categories > Passive components> The resistor> 302074-5ZP249K00TB

302074-5ZP249K00TB: DescriptionFixed Resistor, Metal Foil, 1.25W, 249000ohm, 500V, 0.01% +/-Tol, -.2,.2ppm/Cel,; CategoryPassive components The resistor; File Size456KB，6 Pages; ManufacturerVishay; Websitehttp://www.vishay.com

Download Datasheet Parametric View All

302074-5ZP249K00TB Overview

Fixed Resistor, Metal Foil, 1.25W, 249000ohm, 500V, 0.01% +/-Tol, -.2,.2ppm/Cel,

302074-5ZP249K00TB Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	852972526
Reach Compliance Code	compliant
Country Of Origin	Israel
ECCN code	EAR99
YTEOL	10
structure	Hermetically Sealed
JESD-609 code	e0
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)	1.25 W
resistance	249000 Ω
Resistor type	FIXED RESISTOR
series	HZ(OTHER)
technology	METAL FOIL
Temperature Coefficient	0.2 ppm/°C
Terminal surface	Tin/Lead (Sn/Pb)
Tolerance	0.01%
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

Photoelectric control lullaby circuit

Single wire AM radio circuit

Non-two-wire sound and light control stair delay switch circuit (3)

PHGS-4 computer multi-channel industrial acidity meter circuit 03

PROM fuse

Door lock anti-theft alarm 2

51+proteus simulation application: [i=s]This post was last edited by paulhyde on 2014-9-15 09:08[/i] :loveliness:...; lonchou Electronics Design Contest

Questions about signaltap ii: I can't edit the input signal in SignalTap II, right? Usually, the clock is configured in Signal Configuration, but how can I get the correct result when analyzing the output signal? Also, what is the...; eeleader FPGA/CPLD

How to pass a relative path after the make command to the makefile?: In one environment, make needs to add a relative path to compile a specific part. Not the -c kind. How do I pass this path to the makefile?...; ATMEGA_007 Embedded System

Digital multimeter diode range application: The use of digital multimeters has become very popular, but in common books on electrical technology, the measurement method of semiconductors is mostly using pointer multimeters, and the use of digit...; adqin MCU

[Playing with LPC810 mini] MRT, and the poor 810 ROM under LPCopen: [i=s]This post was last edited by johnrey on 2015-7-15 21:23[/i] [color=#000][font=Tahoma,]LPC810 has many timers, including SCTimer, MRT, systick, WWDT and WKT. SCTimer looks complicated, so let's pl...; johnrey NXP MCU

An idea for uploading information to the forum: [size=5][color=red]Recently I found that when uploading large data to the forum, the speed is very slow. [/color][/size] [size=5][color=red]I wonder if there can be a small fast upload tool in the for...; zqzq501311 Suggestions & Announcements

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