OX270K datasheet, PDF - EEWORLD Datasheet

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OX270K: DescriptionCeramic Composition Resistors 1watt 27ohm 10% Surge; CategoryPassive components; File Size488KB，2 Pages; ManufacturerOhmite; Websitehttps://www.ohmite.com

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Ceramic Composition Resistors 1watt 27ohm 10% Surge

OX270K Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Ohmite
Product Category	Ceramic Composition Resistors
RoHS	No -; RoHS Version Available
Resistance	27 Ohms
Power Rating	1 W
Tolerance	10 %
Temperature Coefficient	- 1300 PPM / C
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 220 C
Voltage Rating	300 V
Diameter	5.5 mm
Length	16.5 mm
Termination Style	Axial
Operating Temperature Range	- 40 C to + 220 C
Product	Resistors Ceramic Composition
Technology	Ceramic Comp
Type	Ceramic Composition
Factory Pack Quantity	10

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OX/OY Series

Ceramic Composition

10% Tolerance

The OX/OY Series of fixed

ceramic resistors are ideal for

circuitry associated with surges,

high peak power or high energy.

They offer enhanced perfor-

mance in high voltage power

supplies, R-C snubber circuits,

and inrush limiters. The OX/

OY resistors can often replace

carbon composition resistors

which can be difficult to source.

Series

F e at u r e S

• Replaces 1 and 2 watt

carbon composition

resistors

• Meets high energy

density demands

• High peak power

• 10% Tolerance

S e r I e S S P e C I F I C at I O N S

* at 70°C. **For a single impulse.

Watts max.*

Resistance range

3.3Ω-100K

3.3Ω-1M

Joules max.**

Max. working volts

300

400

CharaCterItICS

Terminals

Pb-free solder-coated axial

Coating

Silicone ceramic

Derating

Linear from 100% @ +70°C to

0% @ +200°C

Operating Temp.

-40°C to +220°C

Range

Tolerance

±10% standard

Power Rating

Based on 70°C free air rating

Temperature

-1300 ±300ppm/°C.

Coefficient

Max Working Voltage

300V

Dielectric Strength

500V

Max Overload Voltage

600V

Max Pulse Voltage

14KV

400V

½R/R

Test Condition

Life Test

MIL-STD-202, Method 108

Short Time Overload

2x rated V, 5 sec ON @ 70°C

Resistance to Pulse

20,000 cycles. See circuit for test

conditions

Thermal Shock

MIL-STD-202, Method 107

Moisture Resistance

1000 hrs @ 40°C,

90 - 95% RH

Maximum ∆R

±5%

±(2% +0.05Ω)

±5%

±(2% ±0.05Ω)

±5%

Resistance to Pulse

0.80%

0.60%

0.40%

0.20%

0.00%

1 Kohm

100 ohms

100

1,000

Cycles

10,000

20,000

OY Series

DC 20KV

see circuit for

test conditions

10 Kohms

700V

800V

20KV

Pulse Tolerance,

1240V @ 52µF, 1640V @ 52µF,

70J/35 sec.

100 pulses

40J/ 35 sec.

See

figures

1 sec. on / 1 sec. off

10 kohm

Max. Pulse

Voltage

1000 pF

0.80%

0.60%

OX Series

DC 14KV

see circuit for

test conditions

10 Kohms

14KV and 20KV val-

ues used in circuit as

shown; full voltage

R.U.T.

not applied directly to

resistor.

½R/R

0.40%

0.20%

0.00%

1 Kohm

100 ohms

100

1,000

Cycles

10,000

20,000

(continued)

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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