302074-4ZT768R00DB datasheet, PDF

Datasheet> All Categories > Passive components> The resistor> 302074-4ZT768R00DB

302074-4ZT768R00DB: DescriptionFixed Resistor, Metal Foil, 1W, 768ohm, 500V, 0.5% +/-Tol, -.2,.2ppm/Cel,; CategoryPassive components The resistor; File Size115KB，6 Pages; ManufacturerVishay; Websitehttp://www.vishay.com; Environmental Compliance

Download Datasheet Parametric View All

302074-4ZT768R00DB Overview

Fixed Resistor, Metal Foil, 1W, 768ohm, 500V, 0.5% +/-Tol, -.2,.2ppm/Cel,

302074-4ZT768R00DB Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	979558375
Reach Compliance Code	unknown
ECCN code	EAR99
structure	Hermetically Sealed
JESD-609 code	e3
Lead diameter	0.64 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	768 Ω
Resistor type	FIXED RESISTOR
series	HZ SERIES-OTHER
technology	METAL FOIL
Temperature Coefficient	0.2 ppm/°C
Terminal surface	Tin (Sn)
Tolerance	0.5%
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 MΩ (higher or lower values of

resistance available)

•

Vishay 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 “ΔR 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@vishay.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 MΩ 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

(Ω)

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: 03-Dec-09

For any questions, contact:

foil@vishay.com

www.vishay.com

Recommended Resources

TDA1555Q power amplifier circuit diagram

HT-1175A/B/C circuit

Digital display stabilized power supply circuit

Circular lantern circuit

Transformer coupled DC and DC converter circuit diagram using HS7076

Charge-discharge IGBT turn-off snubber circuit

Can GOTO language be used in STM32F103?: In the main program, I want to make a jump command!I used the goto statement but it didn't work. When compiling, it said "statement is unreachable"For example:int main(void) {label://Own codegoto labe...; helloteddy stm32/stm8

Electronic Design Competition: Come on, let's guess what questions will be asked this year...; 好可爱的小多C Microcontroller MCU

About C6655 SPI interface and GPIO: I recently encountered two questions when using the C6655 platform. I have been working on them for several days but have not been able to solve them. Could you please give me some advice? My board is...; liude DSP and ARM Processors

Two common methods for assigning pins in Quartus II (transferred): 0] SEG7_DIG ); seg7_8_LUT u0( .i_clock(CLOCK_50), .i_clock(CLOCK_50), .i_clock(DIG), .i_clock(SEG_SEG); seg7_8_LUT u0( .i_clock(CLOCK_50), .i_clock(SEG_SEG); seg7_8_LUT u0( .i_clock(CLOCK_50), .i_cloc...; 白丁 FPGA/CPLD

wind river ice sx: Has anyone used the windriver ice sx emulator? In the workbench3.0 (vxworks6.6) environment downloaded from the Internet, why can't I find a way to connect to the emulator? Has anyone used it before? ...; liuchangjun1981 Embedded System

I would like to ask all the experts to help me design a battery management system: I need to design a battery management system BMS. Its main tasks are: To detect and control at least 4 lithium batteries (each with a voltage of 3.3V) connected in series. It is necessary to collect t...; mike090824 Power technology

Shortcut: L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

Popular Components