When you need the highest
quality wirewound axial termi-
nal 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 enam-
el 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.
• RoHS compliant; add “E” suffix
to part number to specify.
speciFications
Material
Coating:
Molded lead free vitre-
ous enamel.
Core:
Ceramic.
Terminals:
Solder-coated copper
clad axial. RoHS solder com-
position is 96% Sn, 3.5% Ag,
0.5% Cu
Derating:
Linearly from
100% @ +25°C to
0% @ +350°C.
Electrical
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
Lead Free Vitreous enamel Molded
axial term. Wirewound, 5% tolerance standard
1.5 in. /
38.1mm
L
D
90 Series
series Wattage* ohms
91
1.5
0.1Ω-3.6K
92
2.25 0.1Ω-3.5K
93
3.25 0.1Ω-10.5K
95
5.0
0.1Ω-25K
96
6.5
0.1Ω-50K
90
11.0
0.1Ω-91K
Dimensions (in./mm max.)
Length
Diam. Voltage Lead ga.
0.452 /
11.5
0.140 /
3.6
150
24
0.405 /
10.3
0.219 /
5.6
85
20
0.577 /
14.7
0.234 /
5.9
200
20
0.968 /
24.6
0.265 /
6.7
495
20
0.952 /
24.2
0.343 /
8.7
625
20
1.811 /
46.0
0.343 /
8.7
1080
20
Features
• 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 vitre-
ous enamel coating.
• Higher ratings in smaller sizes.
• Heat sink mounting clips avail-
able.
* 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.
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)
91NJR10E
RoHS
Compliant
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
S ta n d a r d pa rt n u m b e r S f O r 9 0 S e r i e S
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
–––1R0
–––1R1
–––1R2
–––1R3
–––1R5
–––1R6
–––1R8
–––2R0
–––2R2
–––2R4
–––2R7
–––3R0
–––3R3
–––3R6
–––3R9
–––4R0
–––4R3
–––4R7
–––5R0
–––5R1
–––5R6
–––6R2
–––6R8
–––7R5
–––8R2
–––9R1
–––10R
–––11R
–––12R
–––13R
–––15R
–––16R
–––18R
–––20R
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
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
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
–––13K
–––14K
–––15K
–––16K
–––17K
–––18K
–––20K
–––22K
–––24K
–––25K
–––27K
–––30K
–––33K
–––35K
–––36K
–––39K
–––40K
–––43K
–––45K
–––47K
–––50K
–––51K
Wattage
90J–––
11
95J–––
5
1
1.1
1.2
1.3
1.5
1.6
1.8
2
2.2
2.4
2.7
3
3.3
3.6
3.9
4
4.3
4.7
5
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
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
= 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.
Check product availability at
www.ohmite.com
29
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
Ohmite Mfg. Co.
Mounting Clip
For 90 series
Features
• 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
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
S ta n d a r d pa rt n u m b e r S f O r 9 0 S e r i e S m O u n t i n g c l i p
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
no. of
holes
1
2
2
2
2
= Most popular standard values
= Standard values
= Non-standard values subject to
minimum handling charge per
item
30
Ohmite Mfg. Co.
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
PCB Design
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