1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 89
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
90 Series
Lead Free Vitreous Enamel Molded
Axial Term. Wirewound, 5% Tolerance Standard
Series Wattage* Ohms Voltage
91 1.5 0.1Ω-3.6K 150
92 2.25 0.1Ω-3.5K 85
93 3.25 0.1Ω-10.5K 200
95 5.0 0.1Ω-25K 495
96 6.5 0.1Ω-50K 625
90 11.0 0.1Ω-91K 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.
Series Wattage Length Diameter Lead gauge
91 1.5 0.452 / 11.5 0.140 / 3.6 24
92 2.25 0.405 / 10.3 0.219 / 5.6 20
93 3.25 0.577 / 14.7 0.234 / 5.9 20
95 5.0 0.968 / 24.6 0.265 / 6.7 20
96 6.5 0.952 / 24.2 0.343 / 8.7 20
90 11.0 1.811 / 46.0 0.343 / 8.7 20
LD
1.5 in. / 38.1mm
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.
FEATURES
•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.
CHARACTERISTICS
SERIES SPECIFICATIONS
DIMENSIONS
(in./mm max.)
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
90
Standard part numbers for mounting clip
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)
MOUNTING CLIP
Resistor Clip Clip Clip Hole Hole
rating length width height No. of centers diameter
Part No. (watts) (in./mm) (in./mm) (in./mm) holes (in./mm) (in./mm)
5900 1.5 0.40/10.319 0.150/3.810 0.250/6.350 1 0.71/1.803
5902 2.25 0.35/8.890 0.217/5.500 0.275/6.980 2 0.156/ 3.969 0.71/1.803
5904 3.25 0.50/12.700 0.257/6.500 0.319/8.103 2 0.250/ 6.350 0.093/2.362
5906 5.0 0.90/22.860 0.237/6.019 0.284/7.214 2 0.400/10.160 0.103/2.616
5908 11.0 1.75/44.450 0.333/8.458 0.377/9.576 2 0.800/20.320 0.103/2.616
= Most popular standard values
= Standard values
= Non-standard values subject to
minimum handling charge per
item
Standard part numbers for 90 series
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 –––22R
24 –––24R
25 –––25R
27 –––27R
30 –––30R
33 –––33R
35 –––35R
36 –––36R
39 –––39R
40 –––40R
43 –––43R
47 –––47R
50 –––50R
51 –––51R
56 –––56R
62 –––62R
68 –––68R
75 –––75R
82 –––82R
91 –––91R
100 –––100
110 –––110
120 –––120
130 –––130
150 –––150
160 –––160
180 –––180
200 –––200
220 –––220
240 –––240
250 –––250
270 –––270
300 –––300
330 –––330
350 –––350
360 –––360
390 –––390
400 –––400
430 –––430
450 –––450
470 –––470
500 –––500
510 –––510
560 –––560
600 –––600
620 –––620
680 –––680
700 –––700
750 –––750
800 –––800
820 –––820
900 –––900
910 –––910
1,000 –––1K0
1,100 –––1K1
1,200 –––1K2
1,300 –––1K3
1,400 –––1K4
1,500 –––1K5
1,600 –––1K6
1,800 –––1K8
2,000 –––2K0
2,200 –––2K2
2,400 –––2K4
2,500 –––2K5
2,700 ––– 2K7
3,000 –––3K0
3,300 –––3K3
3,500 –––3K5
3,600 –––3K6
3,900 –––3K9
4,000 –––4K0
4,300 –––4K3
4,500 –––4K5
4,700 –––4K7
5,000 –––5K0
5,100 –––5K1
5,600 –––5K6
6,000 –––6K0
6,200 –––6K2
6,800 –––6K8
7,000 –––7K0
7,500 –––7K5
8,000 –––8K0
8,200 –––8K2
9,000 –––9K0
9,100 –––9K1
10,000 –––10K
11,000 –––11K
12,000 –––12K
13,000 –––13K
14,000 –––14K
15,000 –––15K
16,000 –––16K
17,000 –––17K
18,000 –––18K
20,000 –––20K
22,000 –––22K
24,000 –––24K
25,000 –––25K
27,000 –––27K
30,000 –––30K
33,000 –––33K
35,000 –––35K
36,000 –––36K
39,000 –––39K
40,000 –––40K
43,000 –––43K
45,000 –––45K
47,000 –––47K
50,000 –––50K
51,000 –––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.
Ohmic value
95J––– 5
90J––– 11
Wattage
Part No.
Prefix
Suffix
Ohmic value
93J––– 3.25
95J––– 5
90J––– 11
Wattage
Part No.
Prefix
Suffix
Ohmic value
91J––– 1.5
92J––– 2.25
93J––– 3.25
95J––– 5
90J––– 11
Wattage
Part No.
Prefix
Suffix
Ohmic value
91J––– 1.5
92J––– 2.25
93J––– 3.25
95J––– 5
90J––– 11
Wattage
Part No.
Prefix
Suffix
Ohmic value
91J––– 1.5
92J––– 2.25
93J––– 3.25
95J––– 5
90J––– 11
Wattage
Part No.
Prefix
Suffix
91NJR10E
90 Series
Series-Lead
Free Vitreous
Enamel Molded
Axial Term.
Wirewound
Resistance Value
1R0 =1.0Ω
10R =10.0Ω
250= 250Ω
1K0 =1,000Ω
4K5 =4,500Ω
51K =51,000Ω
Tolerance
J= 5%
Wattage
1= 1.5W
2= 2.25W
3= 3.25W
5=5W
0=11 W
Non-Inductive Winding
Optional (blank = std. winding)
RoHS
Compliant
ORDERING INFORMATION
90 Series
Lead Free Vitreous Enamel Molded
Axial Term. Wirewound,
5% Tolerance Standard