OX/OY Series
Ceramic Composition
10% Tolerance
1.50"
±.118
38.0mm
±3
L
D
0.031" nom.
(0.8mm)
FEATURES
• Replaces 1 and 2 watt carbon
composition resistors
• Meets high energy density
demands
• High peak power
• 10% Tolerance
SPECIFICATIONS
Material
Terminals:
Pb Free Solder-coated
axial
Coating:
UL-94 V0 approved
silicone
Derating:
Linear from 100% @
+70°C to 0% @ +200°C
Operating Temp. Range:
-40°C
to +220°C
Electrical
Tolerance:
±10% standard
Power Rating:
Based on 70°C
free air rating.
Temperature Coefficient:
-1300 ±300ppm/°C.
C
Dimensions (in. /
mm)
Length L
Length C
Diameter D
±.039
(±1.0)
max.
±.039
(±1.0)
0.65 /
16.5
0.748 /
19.0
0.217 /
5.5
0.748 /
19.0
0.886 /
22.5
0.276 /
7.0
Max
Working
volts
300
400
Qty.
per
reel
1000
500
Series
OX
OY
Watts
max.*
1
2
Resistance
min.
max.
3.3 100K
3.3
1M
Joules
max.**
50
80
* at 70°C. **For a single impulse.
REEL DIMENSIONS
13"
3"
The OX/OY Series of fixed ceramic resistors are ideal for circuitry associated with surges, high
peak power or high energy. They offer enhanced performance 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.
2.88"
ø 1.13"
RESISTANCE TO PULSE
0.80%
0.60%
∆R/R
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
PERFORMANCE CHARACTERISTICS
Test
Max Working Voltage
Dielectric Strength
Max Overload Voltage
Max Pulse Voltage
1
Pulse Tolerance, 100 pulses
OX
300V
500V
600V
14KV
1240V @ 52µF, 40J/ 35 sec.
OY
400V
700V
800V
20KV
1640V @ 52µF, 70J/35 sec.
Maximum
ΔR
±5%
±(2% + 0.05ohm)
±5%
±(2% ± 0.05 ohm)
±5%
0.80%
0.60%
∆R/R
0.40%
0.20%
0.00%
OX Series
DC 14KV
see circuit for
test conditions
10 Kohms
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
1
See
figures, left
1 Kohm
100 ohms
0
100
1,000
Cycles
10,000
20,000
O R D E R I N G I N F O R M AT I O N
RoHS Compliant
1 sec. on / 1 sec. off
10 kohm
Max. Pulse
Voltage
�½�½�½�½�½�½�½
14KV and 20KV
values used in cir-
cuit as shown; full
voltage not applied
directly to resistor.
Size
OX = 1W
OY = 2W
Tolerance
Ohm Value
K = 10% Standard
Example:
33G = 3.3 Ohms
330 = 33 Ohms
331 = 330 Ohms
1000 pF
R.U.T.
Check product availability at
www.ohmite.com
S TA N D A R D PA RT N U M B E R S F O R O X / O Y S E R I E S
Ohmic value
Ohmic value
Ohmic value
Ohmic value
Ohmic value
Part No.
Prefix
Suffix
––33GKE
––39GKE
––47GKE
––56GKE
––68GKE
––82GKE
––100KE
––120KE
––150KE
––180KE
––220KE
Wattage
2
1
OX–
OY–
Part No.
Prefix
Suffix
––270KE
––330KE
––390KE
––470KE
––560KE
––680KE
––820KE
––101KE
––121KE
––151KE
––181KE
Wattage
2
1
OX–
OY–
Part No.
Prefix
Suffix
––221KE
––271KE
––331KE
––391KE
––471KE
––561KE
––681KE
––821KE
––102KE
––122KE
––152KE
Wattage
2
1
OX–
OY–
Part No.
Prefix
Suffix
––182KE
––222KE
––272KE
––332KE
––392KE
––472KE
––562KE
––682KE
––822KE
––103KE
––123KE
Wattage
2
1
OX–
OY–
Part No.
Prefix
Suffix
––153KE
––183KE
––223KE
––273KE
––333KE
––393KE
––473KE
––563KE
––683KE
––823KE
––104KE
Wattage
2
1
OX–
OY–
Ohmic value
Part No.
Prefix
Suffix
––124KE
––154KE
––184KE
––224KE
––274KE
––334KE
––394KE
––474KE
––564KE
––684KE
––824KE
––105KE
Wattage
OX–
1
OY–
2
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
1200
1500
1800
2200
2700
3300
3900
4700
5600
6800
8200
10000
12000
15000
18000
22000
27000
33000
39000
47000
56000
68000
82000
100000
120000
150000
180000
220000
270000
330000
390000
470000
560000
680000
820000
1 MEG
52
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
OHMITE [ OHMITE MFG. CO. ]
