90 Series
Lead Free Vitreous Enamel Molded
Axial Term. Wirewound, 5% Tolerance Standard
When you need the highest quality wirewound axial
terminal resistors available, choose Ohmite’s 90
Series resistors.
They are manufactured by a unique process that
molds the vitreous enamel over the resistive ele-
ment, helping to ensure consistent dimensions.
This uniformity permits 90 Series resistors to be
mounted in clips, creating a heat-sinking benefit (see
next page).
The durable vitreous enamel coating, which is totally
lead free, permits the 90 Series resistors to maintain
a hard coating while operating at high temperatures.
Mechanical integrity is enhanced by the all-welded
construction.
Series
91
92
93
95
96
90
Wattage*
1.5
2.25
3.25
5.0
6.5
11.0
F e at u r e S
• Molded Construction provides consistent shape
and size (Permits mounting in clips which extends
power rating).
• Meets MIL-R-26 requirements for insulated resis-
tors.
• All-welded construction.
• Flame resistant lead free vitreous enamel coating.
• Higher ratings in smaller sizes.
• Heat sink mounting clips available.
• RoHS compliant; add “E” suffix to part number to
specify.
Voltage
150
85
200
495
625
1080
S e r i e S S p e C i F i C at i o n S
* 2x power ratings by using heat-sink mounting clips shown on following page.
Note:
Due to space restrictions, parts are stamped with wattage ratings reduced to the
nearest whole number. The actual wattage ratings are as published in this catalog.
Ohms
0.1Ω-3.6K
0.1Ω-3.5K
0.1Ω-10.5K
0.1Ω-25K
0.1Ω-50K
0.1Ω-91K
CharaCteriStiCS
Coating
Molded lead free vitreous enamel
Core
Ceramic
Terminals
Solder-coated copper clad axial. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu
Derating
Linearly from 100% @ +25°C to 0% @ +350°C
Tolerance
±5% (other tolerances available)
Power rating
Based on 25°C free air rating (other wattages available*)
Maximum ohmic values
See chart
Overload
Under 11 watts: 5 times rated wattage for 5 seconds. 11 watts: 10 times rated wattage for 5 seconds
Temperature coefficient
1 to 9.99Ω: ±100 ppm/°C; 10Ω and over: ±30 ppm/°C
Dielectric withstanding voltage
500 VAC: 1W rating; 1000 VAC: 2, 3, 5 and 11W
DimenSionS
(in./mm max.)
Series
Wattage
2.25
3.25
5.0
6.5
1.5
Length
0.405 / 10.3
0.577 / 14.7
0.968 / 24.6
0.952 / 24.2
1.811 / 46.0
0.452 / 11.5
Diameter
0.140 / 3.6
0.219 / 5.6
0.234 / 5.9
0.265 / 6.7
0.343 / 8.7
0.343 / 8.7
Lead gauge
24
20
20
20
20
20
91
1.5 in. /
38.1mm
L
D
92
93
95
96
90
11.0
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
89
90 Series
Standard part numbers for 90 series
Wattage
Ohmic value
Ohmic value
92J–––
2.25
93J–––
3.25
91J–––
1.5
91J–––
1.5
90J–––
11
95J–––
5
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
–––22R
–––24R
–––25R
–––27R
–––30R
–––33R
–––35R
–––36R
–––39R
–––40R
–––43R
–––47R
–––50R
–––51R
–––56R
–––62R
–––68R
–––75R
–––82R
–––91R
–––100
–––110
–––120
–––130
–––150
–––160
–––180
–––200
–––220
–––240
–––250
–––270
–––300
–––330
o r D e r i n g i n F o r m at i o n
Non-Inductive Winding
Optional (blank = std. winding)
RoHS
Compliant
Lead Free Vitreous Enamel Molded
Axial Term. Wirewound,
5% Tolerance Standard
Wattage
Ohmic value
92J–––
2.25
93J–––
3.25
91J–––
1.5
90J–––
11
95J–––
5
Part No.
Prefix
Suffix
–––350
–––360
–––390
–––400
–––430
–––450
–––470
–––500
–––510
–––560
–––600
–––620
–––680
–––700
–––750
–––800
–––820
–––900
–––910
–––1K0
–––1K1
–––1K2
–––1K3
–––1K4
–––1K5
–––1K6
–––1K8
–––2K0
–––2K2
–––2K4
–––2K5
–––
2K7
–––3K0
–––3K3
91NJR10E
90 Series
Series-Lead
Free Vitreous
Enamel Molded
Axial Term.
Wirewound
Tolerance Resistance Value
Wattage
1R0 = 1.0Ω
1 = 1.5W J = 5%
10R = 10.0Ω
2 = 2.25W
250 =
250Ω
3 = 3.25W
1K0 = 1,000Ω
5 = 5W
4K5 = 4,500Ω
0 = 11W
51K = 51,000Ω
Wattage
Ohmic value
92J–––
2.25
93J–––
3.25
90J–––
11
95J–––
5
Part No.
Prefix
Suffix
–––3K5
–––3K6
–––3K9
–––4K0
–––4K3
–––4K5
–––4K7
–––5K0
–––5K1
–––5K6
–––6K0
–––6K2
–––6K8
–––7K0
–––7K5
–––8K0
–––8K2
–––9K0
–––9K1
–––10K
–––11K
–––12K
Wattage
Ohmic value
93J–––
3.25
90J–––
11
95J–––
5
Part No.
Prefix
Suffix
Wattage
90J–––
11
95J–––
5
1
–––1R0
1.1
–––1R1
1.2
–––1R2
1.3
–––1R3
1.5
–––1R5
1.6
–––1R6
1.8
–––1R8
2
–––2R0
2.2
–––2R2
2.4
–––2R4
2.7
–––2R7
3
–––3R0
3.3
–––3R3
3.6
–––3R6
3.9
–––3R9
4
–––4R0
4.3
–––4R3
4.7
–––4R7
5
–––5R0
5.1
–––5R1
5.6
–––5R6
6.2
–––6R2
6.8
–––6R8
7.5
–––7R5
8.2
–––8R2
9.1
–––9R1
10
–––10R
11
–––11R
12
–––12R
13
–––13R
15
–––15R
16
–––16R
18
–––18R
20
–––20R
22
24
25
27
30
33
35
36
39
40
43
47
50
51
56
62
68
75
82
91
100
110
120
130
150
160
180
200
220
240
250
270
300
330
350
360
390
400
430
450
470
500
510
560
600
620
680
700
750
800
820
900
910
1,000
1,100
1,200
1,300
1,400
1,500
1,600
1,800
2,000
2,200
2,400
2,500
2,700
3,000
3,300
3,500
3,600
3,900
4,000
4,300
4,500
4,700
5,000
5,100
5,600
6,000
6,200
6,800
7,000
7,500
8,000
8,200
9,000
9,100
10,000
11,000
12,000
13,000
14,000
15,000
16,000
17,000
18,000
20,000
22,000
24,000
25,000
27,000
30,000
33,000
35,000
36,000
39,000
40,000
43,000
45,000
47,000
50,000
51,000
–––13K
–––14K
–––15K
–––16K
–––17K
–––18K
–––20K
–––22K
–––24K
–––25K
–––27K
–––30K
–––33K
–––35K
–––36K
–––39K
–––40K
–––43K
–––45K
–––47K
–––50K
–––51K
= Standard values
= Non-standard values subject to minimum handling
charge per item
Shaded values involve very fine resistance wire and
should not be used in critical applications without burn-
in and/or thermal cycling.
mounting Clip
Standard part numbers for mounting clip
Part No.
5900
5902
5904
5906
5908
Resistor
rating
(watts)
1.5
2.25
3.25
5.0
11.0
Clip
length
(in./mm)
0.40 / 10.319
0.35 / 8.890
0.50 / 12.700
0.90 / 22.860
1.75 / 44.450
Clip
width
(in./mm)
0.150 / 3.810
0.217 / 5.500
0.257 / 6.500
0.237 / 6.019
0.333 / 8.458
F e at u r e S
• Prevents severe vibration or mechanical shock to resistor
• Increases resistor wattage up to 100% when mounted on metal surface (1.5
sq. in. by 0.040 in. thick min. per watt dissipated)
• Holes in clip base permit fastening to chassis surface with machine screws,
eyelets or rivets
• Sold in bags of ten (10)
Clip
height
(in./mm)
0.250 / 6.350
0.275 / 6.980
0.319 / 8.103
0.284 / 7.214
0.377 / 9.576
No. of
holes
1
2
2
2
2
Hole
centers
(in./mm)
0.156 /
3.969
0.250 /
6.350
0.400 / 10.160
0.800 / 20.320
Hole
diameter
(in./mm)
0.71 / 1.803
0.71 / 1.803
0.093 / 2.362
0.103 / 2.616
0.103 / 2.616
= Most popular standard values
= Standard values
= Non-standard values subject to
minimum handling charge per
item
90
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