WHAR25FE [OHMITE]

Miniature Molded Wirewound; 微型模压线绕


型号：	WHAR25FE
厂家：	OHMITE MFG. CO.
描述：	Miniature Molded Wirewound 微型模压线绕
文件：	总1页 (文件大小：115K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

F E A T U R E S

S P E C I F I C A T I O N S

• WHM, UltraHigh ohmic value

precision series,

Material

WH/WN Series

Ceramic Core: CeramTec

Rubalit^®96% alumina

End Caps: Stainless steel, preci-

sion formed

Leads: Copper wire,100% Sn

(lead free) coated

ISAOHM alloy resistance wire

TC+/-20ppm/°C

Encapsulation: SUMICON 1100/

1200 Epoxy molding compound

for IC encapsulation

• WNM, Aryton Perry winding Non-

Inductive available.

Inductance <1nH at 1MHZ test,

• Designed to meet the most strin-

gent MIL-R-26F, MIL-STD-202

standard requirements

• Miniaturized Better power to

dimension ratios

• Use of the highest quality stan-

dard (96% Alumina) ceramic

core

• Manufacturing process -Wire

winding/ Spot Welding- by

Computer Numerical Control

(CNC) machine tools to ensure

consistency of product quality.

• Encapsulated by epoxy molding

compound

Miniature Molded Wirewound

0.984 / 25

�

ꢀ

Power Resistance

Rating

Type (watts)

Range

Dim. L

(mm/in)

Dim. D

(mm/in)

Dim. d

(mm/in)

(Ω)

Electrical

Standard Tolerance: F (1.0%),

J (5.0%)

Temperature Coefficient

(ppm/°C):

±90 for 0.100Ω

±20 for >0.100Ω

Maximum Working Voltage:

(PxR)1/2

Derating: Linearly from

100% @ +70°C to

0% @ +150°C.

WHA

WNA

WHB

WNB

WHC

WNC

0.5

0.100 - 1.0K 5.08 / 0.200 2.54 / 0.100 0.60 / 0.024

0.100 - 250

0.100 - 4.0K 7.00 / 0.276 3.00 / 0.120 0.60 / 0.024

0.100 - 1.0K

0.10 - 8.0K 11.4 / 0.450 6.86 / 0.270 0.80 / 0.031

0.10 - 2.0K

• Advanced IC encapsulation

mold/die technologies

P E R F O R M A N C E C H A R A C T E R I S T I C S

Test

Conditions of Test

Performance

Thermal Shock

Rated power applied until thermal stability,

-55°C +0°C,-5°C,15min.

±0.2%

Operating Temp: -55°C to

+150°C

Short-time Overload 5 times rated wattage for 5 seconds

±0.2%

±0.1%

Solderability

Method 208 of MIL-STD-202

Pull test:10 pounds, 5 to10 seconds, Twist

test: 1080°,5 second/rotation

O R D E R I N G I N F O R M AT I O N

Terminal Strength

H = Inductive

N = Non Inductive

Dielectric

500Volts rms for 1W, 2W 1000Volts rms.

±0.1%

RoHS compliant

Withstanding Voltage 1 minute

High Temperature

Exposure

Exposed to an ambient temperature of 275 ±0.5%

+5/-0°C for 250 ±8 hours,

� ꢀ ꢁ ꢂ ꢃ ꢄ ꢅ ꢆ ꢇ ꢈ

Moisture Resistance MIL-STD-202 Method 106, 7b not applicable ±0.2%

Low Temperature

Storage

Vibration, High

Frequency

Series Power Ohms Tolerance Package

Cold chamber at a temperature of -65 ±2°C ±0.2%

for 24+/-4 hours

Frequency varied 10 to 2000Hz, 200G peak, ±0.1%

2 directions 6 hours each

A = 0.5

B = 1

F = 1%

J = 5%

T = Tape

blank = 25pc Pack

C = 2

K E Y T O F I V E - B A N D C O D E

Load Life

1000/2000 hours at rated power, +25°C, 1.5 ±0.5%

hours “On”, 0.5 hours “Off”

Band

Digit

�ꢁꢂꢃ

ꢀ

Color

Multiplier

Tolerance

S TA N D A R D P A R T N U M B E R S F O R W H / W N S E R I E S

Black

Brown

Red

1Ω

10Ω

Wattage: 0.5

Series:

0.5

WNA

1.0

WHB

1.0

WNB

2.0

WHC

2.0

1% (F)

2% (G)

WHA

WNC

100Ω

1KΩ

Ohms

Orange

Yellow

Green

Blue

0.1

WHAR10FE WNAR10FE

WHAR25FE WNAR25FE

WHAR50FE WNAR50FE

WHAR75FE WNAR75FE

WHBR10FE

WHBR25FE

WHBR50FE

WHBR75FE

WNBR10FE

WNBR25FE

WNBR50FE

WNBR75FE

WHCR10FE

WHCR25FE

WHCR50FE

WHCR75FE

WNCR10FE

WNCR25FE

WNCR50FE

WNCR75FE

10KΩ

0.25

0.50

0.75

x 100KΩ

0.5% (D)

1MΩ

± 0.25% (C)

± 0.10% (B)

± 0.05%

WHA1R0FE WNA1R0FE

WHA2R0FE WNA2R0FE

WHA4R0FE WNA4R0FE

WHA5R0FE WNA5R0FE

WHB1R0FE

WHB2R0FE

WHB4R0FE

WHB5R0FE

WNB1R0FE

WNB2R0FE

WNB4R0FE

WNB5R0FE

WHC1R0FE

WHC2R0FE

WHC4R0FE

WHC5R0FE

WNC1R0FE

WNC2R0FE

WNC4R0FE

WNC5R0FE

Violet

Grey

10MΩ

White

Gold

WHA10RFE WNA10RFE

WHA15RFE WNA15RFE

WHA25RFE WNA25RFE

WHA51RFE WNA51RFE

WHB10RFE

WHB15RFE

WHB25RFE

WHB51RFE

WNB10RFE

WNB15RFE

WNB25RFE

WNB51RFE

WHC10RFE

WHC15RFE

WHC25RFE

WHC51RFE

WNC10RFE

WNC15RFE

WNC25RFE

WNC51RFE

0.1Ω

5% (J)

Silver

0.01Ω

10% (K)

WHA75RFE WNA75RFE

WHA100FE WNA100FE

WHA150FE WNA150FE

WHA200FE WNA200FE

WHB75RFE

WHB100FE

WHB150FE

WHB200FE

WNB75RFE

WNB100FE

WNB150FE

WNB200FE

WHC75RFE

WHC100FE

WHC150FE

WHC200FE

WNC75RFE

WNC100FE

WNC150FE

WNC200FE

100

150

200

250

330

470

560

WHA250FE WNA250FE

WHA330FE

WHB250FE

WHB330FE

WHB470FE

WHB560FE

WNB250FE

WNB330FE

WNB470FE

WNB560FE

WHC250FE

WHC330FE

WHC470FE

WHC560FE

WNC250FE

WNC330FE

WNC470FE

WNC560FE

WHA470FE

WHA560FE

750

2.5K

WHA750FE

WHA1K0FE

WHB750FE

WHB1K0FE

WHB2K5FE

WNB750FE

WNB1K0FE

WHC750FE

WHC1K0FE

WHC2K5FE

WNC750FE

WNC1K0FE

Check product availability at www.ohmite.com

Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

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