D12K1K25 datasheet, PDF - EEWORLD Datasheet

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D12K1K25: DescriptionWirewound Resistors - Chassis Mount 12watt 1.25K 10% Tubular Ceramic; CategoryPassive components The resistor; File Size213KB，2 Pages; ManufacturerOhmite; Websitehttps://www.ohmite.com

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D12K1K25 Overview

Wirewound Resistors - Chassis Mount 12watt 1.25K 10% Tubular Ceramic

D12K1K25 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Ohmite
Reach Compliance Code	compliant
ECCN code	EAR99
Actuator type	SLIDE
structure	All-Welded
gang number	1
JESD-609 code	e0
Manufacturer's serial number	210
Installation features	PANEL MOUNT
Number of terminals	3
Maximum operating temperature	350 °C
Package diameter	7.94 mm
Package length	44.4 mm
Package shape	TUBULAR PACKAGE
Package form	Radial
Rated power dissipation(P)	12 W
Rated temperature	25 °C
resistance	1250 Ω
resistance law	LINEAR
Resistor type	POTENTIOMETER
series	210
surface mount	NO
technology	WIRE WOUND
Temperature Coefficient	-260,260 ppm/°C
Terminal surface	Tin/Lead (Sn/Pb)
Terminal shape	LUG
Tolerance	10%
Operating Voltage	565 V

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210 Series

Dividohm® Vitreous Enamel

Adjustable Power

F e at u r e S

• Terminals suitable for soldering or bolt connection.

• Adjustable lug supplied

• High wattage applications

• All-welded construction

• Rugged lead free vitreous enamel coating.

• Flame resistant coating

• Additional adjustable lugs available

• RoHS compliant product available. Add “E” suffix to

part number to specify

Series

D12

D25

D50

D75

D100

D175

D225

D500

D1000

Wattage

100

175

225

500

1000

Ohms

1.0-10K

1.0-25K

1.0-100K

1.5-15K

3.0-27.7K

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.

Core Code

Voltage

565

625

1625

2625

2845

3595

4595

4970

8900

Standard Terminal

S e r i e S S P e c i F i c at i O N S

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

characteriSticS

Adjustability

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

resistance value.

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.

Core

Tubular ceramic.

Terminals

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

3.5% Ag, 0.5% Cu

Adjustable

Nickel plated steel. (Screwdriver type adjustable lug supplied

terminal

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

Derating

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

Tolerance

±10% (K)

Power limitations for high resis-

tance values:

When resistance

exceeds the resistance values listed

below, derate the Power Rating by

25% to improve reliability:

Power Resistance

No power

rating value

derating neces-

sary for ratings

12W

4,500Ω

higher than

25W

9,000Ω

100W.

50W

20,000Ω

75W

35,000Ω

100W 50,000Ω

Power rating

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.

Overload

10 times rated wattage for 5 seconds.

Temperature

±260 ppm/°C

coefficient

Dielectric

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

withstanding

ing (measured from terminal to mounting bracket)

voltage

Max. amps

To calculate, use the formula √P/R.

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

109

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