Ohmite Mfg. Co. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 31
Standard part numberS for 200 SerieS
200 Series
Brown Devil
®
Vitreous Enamel Power
Ohmite’s Brown Devil
®
is a
small, exceptionally durable
power resistor. It features
all-welded construction and
rugged, flame resistant confor-
mal lead free vitreous enamel
coating to ensure successful
performance under high tem-
peratures.
The wirewound 200 Series
has a hollow-core construc-
tion, which accommodates
rigid mounting with brackets or
thru bolts.
Mounting brackets not
included with resistors.
FEATURES
• Rugged lead free vitreous enam-
el coating
• All-welded construction.
• Self supporting terminal mount-
ing option.
• Higher power ratings.
• Flame-resistant lead free vitre-
ous enamel coating.
• RoHS compliant product avail-
able. Add “E” suffix to part num-
ber to specify.
L
D
1.50 in. -0/+0.25
38.10 mm -0/+6.35
C
= Standard values; check
availability using the world-
wide inventory search at
www.ohmite.com
These values involve very fine
resistance wire and should not
be used in critical applications
without burn-in and/or thermal
cycling:
B5: 6.8K-20KΩ
B8: 12.5K-25KΩ
B12: 30K-51KΩ
B20: 22.5K-100KΩ
0.5 –––R50E
1 –––1R0E
1.1 –––1R1E
1.2 –––1R2E
1.3 –––1R3E
1.5 –––1R5E
1.6 –––1R6E
1.8 –––1R8E
2 –––2R0E
2.2 –––2R2E
2.4 –––2R4E
2.7 –––2R7E
3 –––3R0E
3.3 –––3R3E
3.6 –––3R6E
3.9 –––3R9E
4 –––4R0E
4.3 –––4R3E
4.7 –––4R7E
5 –––5R0E
5.1 –––5R1E
5.6 –––5R6E
6.2 –––6R2E
6.8 –––6R8E
7.5 –––7R5E
8.2 –––8R2E
9.1 –––9R1E
10 –––10RE
11 –––11RE
12 –––12RE
13 –––13RE
15 –––15RE
16 –––16RE
18 –––18RE
20 –––20RE
22 –––22RE
24 –––24RE
25 –––25RE
27 –––27RE
30 –––30RE
33 –––33RE
35 –––35RE
36 –––36RE
39 –––39RE
40 –––40RE
43 –––43RE
47 –––47RE
50 –––50RE
51 –––51RE
56 –––56RE
62 –––62RE
68 –––68RE
75 –––75RE
82 –––82RE
91 –––91RE
100 –––100E
110 –––110E
120 –––120E
125 –––125E
130 –––130E
150 –––150E
160 –––160E
180 –––180E
200 –––200E
220 –––220E
225 –––225E
240 –––240E
250 –––250E
2,250 –––2K25E
2,400 –––2K4E
2,500 –––2K5E
2,700 –––2K7E
2,750 –––2K75E
3,000 –––3K0E
3,300 –––3K3E
3,500 –––3K5E
3,600 –––3K6E
3,900 –––3K9E
4,000 –––4K0E
4,300 –––4K3E
4,500 –––4K5E
4,700 –––4K7E
5,000 –––5K0E
5,100 –––5K1E
5,600 –––5K6E
6,000 –––6K0E
6,200 –––6K2E
6,800 –––6K8E
7,000 –––7K0E
7,500 –––7K5E
8,000 –––8K0E
8,200 –––8K2E
8,500 –––8K5E
9,000 –––9K0E
9,100 –––9K1E
10,000 –––10KE
11,000 –––11KE
12,000 –––12KE
12,500 –––12K5E
13,000 –––13KE
13,500 –––13K5E
15,000 –––15KE
16,000 –––16KE
17,500 –––17K5E
18,000 –––18KE
20,000 –––20KE
22,500 –––22K5E
25,000 –––25KE
30,000 –––30KE
35,000 –––35KE
40,000 –––40KE
45,000 –––45KE
50,000 –––50KE
55,000 –––55KE
60,000 –––60KE
65,000 –––65KE
70,000 –––70KE
75,000 –––75KE
80,000 –––80KE
85,000 –––85KE
90,000 –––90KE
95,000 –––95KE
100,000 –––100KE
Ohmic value
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Wattage
Part No.
Prefix
Suffix
Ohmic value
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Wattage
Part No.
Prefix
Suffix
Ohmic value
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Wattage
Part No.
Prefix
Suffix
270 –––270E
300 –––300E
330 –––330E
350 –––350E
360 –––360E
390 –––390E
400 –––400E
430 –––430E
450 –––450E
470 –––470E
500 –––500E
510 –––510E
560 –––560E
600 –––600E
620 –––620E
650 –––650E
680 –––680E
700 –––700E
750 –––750E
800 –––800E
820 –––820E
900 –––900E
910 –––910E
1,000 –––1K0E
1,100 –––1K1E
1,200 –––1K2E
1,250 –––1K25E
1,300 –––1K3E
1,500 –––1K5E
1,600 –––1K6E
1,750 –––1K75E
1,800 –––1K8E
2,000 –––2K0E
2,200 –––2K2E
Ohmic value
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Wattage
Part No.
Prefix
Suffix
Ohmic value
B5J––– 5.25
B8J––– 8
B12J––– 12
B20J––– 20
Wattage
Part No.
Prefix
Suffix
See page 36
for mounting hardware
Dimensions (in. / mm) Lead Max.
Series Wattage Ohms L D C Gauge Volt.*
B5 5.25 0.1-20K 0.625 / 15.88 0.250 / 6.35 0.135 / 3.43 20 187
B8 8.0 0.03-25K 1.000 / 25.40 0.313 / 7.94 0.188 / 4.76 18 250
B12 12.0 0.08-51K 1.750 / 44.45 0.313 / 7.94 0.188 / 4.76 18 625
B20 20.0 0.1-100K 2.000 / 50.80 0.438 / 11.11 0.250 / 6.35 18 750
SPECIFICATIONS
Material
Coating: lead free vitreous
enamel.
Core: Ceramic.
Terminals: Tinned axial; RoHS
solder composition is 96% Sn,
3.5% Ag, 0.5% Cu
Derating: Linearly from
100% @ +25°C to 0% @
+350°C.
Electrical
Tolerance: 1Ω+: ±5%
under 1Ω: ±10%
Power rating: Based on
25°C free air rating.
Overload: 10 times rated
wattage for 5 seconds.
Temperature coefficient:
5Ω and under: ±400 ppm/°C
Above 5Ω: ±260 ppm/°C
To calculate max. amps: use
the formula √P/R.
ordering info made-to-order partS
Tolerance
F= 1%
H= 3%
J= 5%
K= 10%
Ohms
1R0 = 1 Ω
250 = 250 Ω
1K0 = 1,000 Ω
25K = 25,000 Ω
25K5 = 25,500 Ω
RoHS
Compliant
Series
Wattage
Non-Inductive
Winding
Optional (blank
= std. winding)
Coating
Blank =Vitreous
C=Centohm
S=Silicone
200N 8D5R000JE
Tolerance
F= 1%
H= 3%
J= 5%
K= 10%
Core Diameter
See “Core and
Terminal Selection”
Ohms
R500 = 0.500 Ω
1R00 = 1 Ω
250R = 250 Ω
1K00 = 1,000 Ω
25K0 = 25,000 Ω
25K5 = 25,500 Ω
RoHS
Compliant
Coating
200 = Vitreous
400 = Silicone
Ceramic
Wattage
3
5.25
8
12
20
Non-Inductive Winding
Optional (blank
= std. winding)
See web-
site for
custom
core info
Non-Inductive versions available. Insert “N” before tolerance code. Example - B5NJ10RE
Also available in low cost Centohm or Silicone coating. Consult Ohmite.
* Maximum Voltage is based on Ohm’s Law [V=√P*R] as limited by the resistance value of
specified product
