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.
ꢄ P E C ꢅ F ꢅ C ꢀ ꢁ ꢅ O N ꢄ
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%
200 Series
Brown Devil® Vitreous Enamel Power
1.50 in. -0/+0.25
38.10 mm -0/+6.35
D
C
L
Dimensions (in. / mm)
Lead Max.
Gauge Volt.*
ꢄeries Wattage Ohms
B5
B8
L
D
C
Mounting brackets not
included with resistors.
Power rating: Based on
25°C free air rating.
5.25 0.1-20K 0.625 / 15.88 0.250 / 6.35 0.135 / 3.43 20
8.0 0.03-25K 1.000 / 25.40 0.313 / 7.94 0.188 / 4.76 18
B12 12.0 0.08-51K 1.750 / 44.45 0.313 / 7.94 0.188 / 4.76 18
B20 20.0 0.1-100K 2.000 / 50.80 0.438 / 11.11 0.250 / 6.35 18
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
187
250
625
750
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.
F E ꢀ ꢁ ꢂ ꢃ E ꢄ
• 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.
o r d e r i n g i n f o
m a d e - t o - o r d e r p a r t S
Non-Inductive Winding
Optional (blank
= std. winding)
Core Diameter
See “Core and
Terminal Selection”
Coating
Non-Inductive
Winding
RoHS
Compliant
Blank = Vitreous
C = Centohm
Optional (blank
RoHS
Compliant
S = Silicone Wattage = std. winding)
2 0 0 N 8 D 5 R 0 0 0 J E
See web-
site for
� ꢀ ꢁ ꢂ ꢃ ꢄ ꢅ ꢆ
Coating
Wattage
Ohms
Tolerance
custom
core info
Series
Tolerance Ohms
F = 1% 1R0 = 1 Ω
H = 3% 250 = 250 Ω
5% 1K0 = 1,000 Ω
200 = Vitreous
400 = Silicone
Ceramic
3
R500 = 0.500 Ω F = 1%
5.25
8
12
20
1R00 = 1 Ω
H = 3%
J = 5%
See page 36
for mounting hardware
250R = 250 Ω
J
=
1K00 = 1,000 Ω K = 10%
K = 10% 25K = 25,000 Ω
25K5 = 25,500 Ω
25K0 = 25,000 Ω
25K5 = 25,500 Ω
S ta n d a r d p a r t n u m b e r S f o r 2 0 0 S e r i e S
Wattage
Wattage
Wattage
Wattage
Wattage
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
0.5 –––R50E
20 –––20RE
22 –––22RE
24 –––24RE
270 –––270E
300 –––300E
330 –––330E
350 –––350E
360 –––360E
390 –––390E
400 –––400E
2,250 –––2K25E
2,400 –––2K4E
2,500 –––2K5E
2,700 –––2K7E
2,750 –––2K75E
16,000 –––16KE
17,500 –––17K5E
18,000 –––18KE
1
–––1R0E
1.1 –––1R1E
1.2 –––1R2E
1.3 –––1R3E
1.5 –––1R5E
1.6 –––1R6E
1.8 –––1R8E
25 –––25RE
20,000 –––20KE
27 –––27RE
30 –––30RE
33 –––33RE
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
3,000 –––3K0E
3,300 –––3K3E
35 –––35RE
430 –––430E
450 –––450E
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
2
–––2R0E
36 –––36RE
2.2 –––2R2E
2.4 –––2R4E
2.7 –––2R7E
39 –––39RE
40 –––40RE
43 –––43RE
47 –––47RE
50 –––50RE
470 –––470E
500 –––500E
510 –––510E
560 –––560E
600 –––600E
620 –––620E
650 –––650E
680 –––680E
700 –––700E
3
–––3R0E
3.3 –––3R3E
3.6 –––3R6E
3.9 –––3R9E
51 –––51RE
56 –––56RE
62 –––62RE
68 –––68RE
75 –––75RE
82 –––82RE
91 –––91RE
100 –––100E
110 –––110E
4
–––4R0E
4.3 –––4R3E
4.7 –––4R7E
750 –––750E
5
–––5R0E
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
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
7,500 –––7K5E
= Standard values; check
availability using the world-
wide inventory search at
www.ohmite.com
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
120 –––120E
125 –––125E
130 –––130E
These values involve very fine
resistance wire and should not
be used in critical applications
without burn-in and/or thermal
cycling:
150 –––150E
160 –––160E
180 –––180E
200 –––200E
220 –––220E
B5: 6.8K-20KΩ
B8: 12.5K-25KΩ
B12: 30K-51KΩ
B20: 22.5K-100KΩ
225 –––225E
240 –––240E
250 –––250E
18 –––18RE
15,000 –––15KE
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
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