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 element, 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.
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 resistors.
• 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.
S e r i e s s p e c i f i c at i o n s
Series
91
92
93
95
96
90
Wattage*
1.5
2.25
3.25
5.0
6.5
11.0
Ohms
0.1Ω-3.6K
0.1Ω-3.5K
0.1Ω-10.5K
0.1Ω-25K
0.1Ω-50K
0.1Ω-91K
Voltage
150
85
200
495
625
1080
* 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.
C h a r a c t e r i s t i cs
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.)
1.5 in. / 38.1mm
min.
L
D
Series
Wattage
91
1.5
Diameter
Lead gauge
0.140 / 3.6
24
0.577 / 14.7
0.234 / 5.9
20
92
2.25
0.405 / 10.3
95
5.0
0.968 / 24.6
93
96
90
88
Length
0.452 / 11.5
3.25
6.5
11.0
0.952 / 24.2
1.811 / 46.0
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
0.219 / 5.6
0.265 / 6.7
0.343 / 8.7
0.343 / 8.7
20
20
20
20
(continued)
90 Series
OR D ERING IN F ORMATION
Non-Inductive Winding
Optional (blank = std. winding)
Lead Free Vitreous Enamel Molded
Axial Term. Wirewound,
5% Tolerance Standard
91NJR10E
90 Series
Series-Lead
Free Vitreous
Enamel Molded
Axial Term.
Wirewound
RoHS
Compliant
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
Standard part numbers for 90 series
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
–––3K5
–––3K6
–––3K9
–––4K0
–––4K3
–––4K5
–––4K7
–––5K0
–––5K1
–––5K6
–––6K0
–––6K2
–––6K8
–––7K0
–––7K5
–––8K0
–––8K2
–––9K0
–––9K1
–––10K
–––11K
–––12K
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
90J––– 11
95J––– 5
–––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
Ohmic value
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
90J––– 11
95J––– 5
Part No.
Prefix
Suffix
93J––– 3.25
Ohmic value
90J––– 11
95J––– 5
93J––– 3.25
90J––– 11
–––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
92J––– 2.25
95J––– 5
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
91J––– 1.5
93J––– 3.25
Ohmic value
92J––– 2.25
95J––– 5
91J––– 1.5
93J––– 3.25
90J––– 11
92J––– 2.25
Ohmic value
91J––– 1.5
Part No.
Prefix
Suffix
Wattage
–––13K
–––14K
–––15K
–––16K
–––17K
–––18K
–––20K
–––22K
–––24K
–––25K
–––27K
–––30K
–––33K
–––35K
–––36K
–––39K
–––40K
–––43K
–––45K
–––47K
–––50K
–––51K
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Wattage
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
Wattage
Part No.
Prefix
Suffix
Wattage
Ohmic value
Wattage
= 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 burnin 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
No. of
(in./mm)
holes
0.250 / 6.350
1
0.275 / 6.980
2
0.319 / 8.103
2
0.284 / 7.214
2
0.377 / 9.576
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
rev 06/20-1
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
89
= Most popular standard values
= Standard values
= Non-standard values subject to
minimum handling charge per
item