VHA518-9ZP8K2500QB datasheet, PDF

Datasheet> All Categories > Passive components> The resistor> VHA518-9ZP8K2500QB

VHA518-9ZP8K2500QB: DescriptionFixed Resistor, Metal Foil, 2.25W, 8250ohm, 600V, 0.02% +/-Tol, -.2,.2ppm/Cel,; CategoryPassive components The resistor; File Size456KB，6 Pages; ManufacturerVishay; Websitehttp://www.vishay.com

Download Datasheet Parametric View All

VHA518-9ZP8K2500QB Overview

Fixed Resistor, Metal Foil, 2.25W, 8250ohm, 600V, 0.02% +/-Tol, -.2,.2ppm/Cel,

VHA518-9ZP8K2500QB Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	852406093
Reach Compliance Code	compliant
ECCN code	EAR99
structure	Hermetically Sealed
JESD-609 code	e0
Lead diameter	0.645 mm
Lead length	25.4 mm
Number of terminals	2
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Package diameter	12.7 mm
Package length	38.1 mm
Package form	Axial
method of packing	Bulk
Rated power dissipation(P)	2.25 W
resistance	8250 Ω
Resistor type	FIXED RESISTOR
series	HZ(AXIAL)
technology	METAL FOIL
Temperature Coefficient	0.2 ppm/°C
Terminal surface	Tin/Lead (Sn/Pb)
Tolerance	0.02%
Operating Voltage	600 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

Internal structure block diagram of clock signal generator chip ICS952607

HT-8654 circuit

Circuit diagram of adding hands-free function to telephone

Op amp precision zero adjustment circuit

The most practical basic diagram circuit 28 - capacitive proximity switch circuit

About 32.768KHz crystal oscillator and dedicated clock chip: In the process of DIY ultra-low power clock, we have discussed the clock source.Does the clock source used by this clock use a 32768Hz crystal or a dedicated clock chip such as DS1302?Finally, we chos...; wstt Microcontroller MCU

What is the most difficult bug you have ever encountered?: I can't help it, answering questions for the first time. In 2008, my company debugged a new arm9 CPU from Samsung, model S3C2416, which is a simplified version of S3C2450. When the development board w...; 白丁 Integrated technical exchanges

BENQ M32 AT$DESTINFO command error: I have been able to log in the module to the network and get the module's IP address, but when I use BENQ M32 AT$DESTINFO to connect to the server, an error occurs. I don't know what's going on? AT+CG...; sians Embedded System

2440SD card development help: I don't know what happened. This is my first time to make an SD card, but I encountered a big problem. I tested the program with ADS bare metal without any problem. But it doesn't work under PB (Micro...; luckyboy Embedded System

From Chemistry to Power Supply Design: A Power Supply Engineer's Growth Record (Transferred): I saw this online and I think it's good, so I recommend it to you. The article is quite long, so please be patient and read it through. Reprinted from Power Supply Network Original author: Snow on Kil...; 电子制作 Power technology

Future DSP Development Trends: I. Technology Development Trends 1. The core structure of digital signal processors is further improved. Multi-channel structures and single instruction multiple data (SIMD) and very large instruction...; liede DSP and ARM Processors

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components