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OX181KE

Description
Ceramic Composition Resistors 1watt 180ohm 10% Surge
CategoryPassive components    The resistor   
File Size488KB,2 Pages
ManufacturerOhmite
Websitehttps://www.ohmite.com
Environmental Compliance
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OX181KE Overview

Ceramic Composition Resistors 1watt 180ohm 10% Surge

OX181KE Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerOhmite
package instructionAxial,
Reach Compliance Codecompliant
ECCN codeEAR99
structureCylindrical
JESD-609 codee2
Lead diameter0.8 mm
Lead length38 mm
Installation featuresTHROUGH HOLE MOUNT
Number of terminals2
Maximum operating temperature220 °C
Minimum operating temperature-40 °C
Package diameter5.5 mm
Package length16.5 mm
Package shapeTUBULAR PACKAGE
Package formAxial
method of packingTR, 13 INCH
Rated power dissipation(P)1 W
Rated temperature70 °C
resistance180 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyCERAMIC COMPOSITION
Temperature Coefficient1600 ppm/°C
Terminal surfaceTin/Copper (Sn/Cu)
Terminal shapeWIRE
Tolerance10%
Operating Voltage300 V
Base Number Matches1
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
OX
OY
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.*
1
2
Resistance range
3.3Ω-100K
3.3Ω-1M
Joules max.**
50
80
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
OX
Max Working Voltage
300V
Dielectric Strength
500V
Max Overload Voltage
600V
Max Pulse Voltage
1
14KV
OY
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
1
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
0
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.
1
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
0
100
1,000
Cycles
10,000
20,000
(continued)
56
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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