D75K2K25 [OHMITE]

RESISTOR POWER ADJ 2.25K OHM 75W;


型号：	D75K2K25
厂家：	OHMITE MFG. CO.
描述：	RESISTOR POWER ADJ 2.25K OHM 75W
文件：	总2页 (文件大小：279K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

210 Series

Dividohm® Vitreous Enamel

Adjustable Power

F ꢀ at u ꢁ ꢀ S

•ꢀTerminalsꢀsuitableꢀforꢀsolderingꢀorꢀboltꢀconnection.ꢀ

•ꢀAdjustableꢀlugꢀsupplied

•ꢀHighꢀwattageꢀapplications

•ꢀAll-weldedꢀconstruction

•ꢀRuggedꢀleadꢀfreeꢀvitreousꢀenamelꢀcoating.

•ꢀFlameꢀresistantꢀcoating

•ꢀAdditionalꢀadjustableꢀlugsꢀavailable

•ꢀRoHSꢀcompliantꢀproductꢀavailable.ꢀAddꢀ“E”ꢀsuffixꢀtoꢀ

part number to specify

Choose Ohmite’s 210 Type adjustable resistors for

applications requiring settings at different resistance

values. These wirewound resistors are equipped with

an adjustable lug, making them ideal for adjusting

circuits, obtaining odd resistance values and set-

ting equip ment to meet various line voltages. 210

Type resistors feature a hollow core to permit secure

fastening with spring-type clips or thru bolts with

washers. They also offer the durability of lead free

vitreous enamel coating and all-welded construction.

Mounting brackets not included with resistors.

SꢀꢁꢂꢀS SPꢀcꢂFꢂcatꢂONS

Series

D12

D25

D50

D75

D100

D175

D225

D500

D1000

Wattage

Ohms

1.0-10K

Core Code Voltage

565

625

Standard Terminal

1.0-25K

1.0-100K

1.5-15K

1625

2625

2845

3595

4595

4970

8900

100

175

225

500

1000

3.0-27.7K

Other sizes available; contact Ohmite. Also available in low cost Centohm or Silicone coating; contact Ohmite.

chaꢁactꢀꢁꢂStꢂcS

10% to 90% of full value. Wattage is proportional to this adjusted

resistance value.

Adjustability

Coating

Lead free vitreous enamel. Large models (500 watts and up) are

supplied in Silicone Ceramic. Also available in low-cost Centohm

coating; Consult factory.

Tubular ceramic.

Core

Solder coated radial lug. RoHS solder composition is 96% Sn,

3.5% Ag, 0.5% Cu

Terminals

Power limitations for high resis-

tance values: When resistance

exceeds the resistance values listed

below, derate the Power Rating by

25% to improve reliability:

Nickel plated steel. (Screwdriver type adjustable lug supplied

standard. Other types, including silver contact units, available.)

Adjustable

terminal

Linearly from 100% @ +25°C to 0% @ +350°C.

±10% (K)

Derating

Tolerance

Power Resistance No power

rating value

derating neces-

sary for ratings

higher than

100W.

Based on 25°C free air rating. The stated wattage rating applies

only when the entire resistance is in the circuit. Setting the lug at

an intermediate point reduces the wattage rating by approximately

the same proportion. Example: If the lug is set at half resistance,

the wattage is reduced by approx. one-half.

Power rating

12W

25W

50W

75W

4,500Ω

9,000Ω

20,000Ω

35,000Ω

100W 50,000Ω

10 times rated wattage for 5 seconds.

±260 ppm/°C

Overload

Temperature coef-

ficient

1000 VAC: 12 to 100 watt rating. 3000 VAC: 175 and 225 watt rat-

ing (measured from terminal to mounting bracket)

Dielectric withstand-

ing voltage

To calculate, use the formula √P/R.

Max. amps

see https://www.ohmite.com/assets/docs/hardware_resistor.pdf

Mounting Hardware

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

107

210 Series

Dividohm® Vitreous Enamel

Adjustable Power

dꢂmꢀNSꢂONS

(in. / mm)

Series Wattage

Core Code*

Std. Term.**

D12

1.75 / 44.4

2.0 / 50.8

4.0 / 101.6

6.0 / 152.4

6.5 / 165.1

8.5 / 215.9

10.5 / 266.7

12.0 / 304.8

20.0 / 508.0

0.313 / 7.94

0.562 / 14.3

0.750 / 19.1

1.125 / 28.6

2.50 / 63.5

0.188 / 4.76

0.313 / 7.94

0.50 / 12.7

0.75 / 19.1

1.75 / 44.5

D25

D50

D75

D100

D175

D225

D500

100

175

225

500

D1000 1000

* https://www.ohmite.com/assets/docs/200-210-270-custom.pdf

** https://www.ohmite.com/assets/docs/terminals.pdf

OꢁdꢀꢁꢂNg ꢂNFOꢁmatꢂON

Coating

Made-to-order Parts

Blank = Vitreous

C = Centohm

S = Silicone

RoHS Compliant

Core Diameter Terminal Type

See “Core and See “Resistor Terminals

Terminal Selection” for Tubular Cores”

RoHS Compliant

See 270 series custom core

and terminal info

Series Wattage Tolerance Ohms

5% 1R0 = 1Ω

Tolerance

K = 10%

Coating

Wattage

Ohms

R500 = 0.500Ω

1R00 = 1Ω

250R = 250Ω

1K00 = 1,000Ω

25K0 = 25,000Ω

25K5 = 25,500Ω

K = 10% 250 = 250Ω

1K0 = 1,000Ω

J =

210 = Vitreous

410 = Silicone Ceramic

610 = Centohm

25K = 25,000Ω

25K5 = 25,500Ω

Standard Values

Wattage

Part No.

Prefixꢀ

Suffixꢀ

Part No.

Prefixꢀ

Suffixꢀ

Part No.

Prefixꢀ

Suffixꢀ

1.0 –––1R0Eꢀ



ꢀ



150 –––150Eꢀ



ꢀ



3,000 –––3K0Eꢀ

4,000 –––4K0Eꢀ

5,000 –––5K0Eꢀ

6,000 –––6K0Eꢀ

7,000 –––7K0Eꢀ

7,500 –––7K5Eꢀ

10,000 –––10KEꢀ

12,000 –––12KEꢀ

15,000 –––15KEꢀ

20,000 –––20KEꢀ

25,000 –––25KEꢀ

50,000 –––50KEꢀ

100,000 –––100KEꢀ



ꢀ



ꢀ



–––2R0Eꢀ

–––3R0Eꢀ

–––4R0Eꢀ

–––5R0Eꢀ

200 –––200Eꢀ

250 –––250Eꢀ

300 –––300Eꢀ

400 –––400Eꢀ

500 –––500Eꢀ

750 –––750Eꢀ

800 –––800Eꢀ

1,000 –––1K0Eꢀ



ꢀ 

ꢀ



ꢀ 



ꢀ

ꢀ 



7.5 –––7R5Eꢀ

10 –––10REꢀ

15 –––15REꢀ

20 –––20REꢀ

25 –––25REꢀ

50 –––50REꢀ

75 –––75REꢀ

100 –––100Eꢀ



ꢀ ꢀ 



ꢀ



ꢀ 



ꢀ



ꢀ 

ꢀ



1,250 –––1K25Eꢀ 



1,500 –––1K5Eꢀ

2,000 –––2K0Eꢀ

2,500 –––2K5Eꢀ



ꢀ

ꢀ 



ꢀ



50KΩ and 100KΩ resistance values involve very fine resistance wire and should not be

used in critical applications without burn-in and/or thermal cycling.

ꢀ=ꢀꢀStandardꢀvalues;ꢀcheckꢀavailabilityꢀatꢀ

www.ohmite.com

rev 6/20-1

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

108

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