L100J25RE Datasheet, PDF (1/1 Pages) Ohmite Mfg. Co. – Vitreous Enamel Power

270 Series
Vitreous Enamel Power
D
C
L
See page 36
for mounting
hardware
F e a t u r es
• Terminals suitable for soldering
or bolt connection
• High wattage applications
• Rugged lead free vitreous enam-
el coating
• Flame resistant coating
• All-welded construction
• RoHS compliant available
• “Fast on” option – see terminal
538, page 37
Series
L12
L25
L50
L100
L175
L225
L500
L1000
Wattage
12
25
50
100
175
225
500
1000
Ohms
0.1-51K
0.15-100K
0.38-260K
0.23-101K
0.13-101K
0.16-129K
0.38-218K
0.69-392K
Dimensions (in. / mm)
L
D
C
1.75 / 44.4 0.313 / 7.94 0.188 / 4.76
2.0 / 50.8 0.562 / 14.3 0.313 / 7.94
4.0 / 101.6 0.562 / 14.3 0.313 / 7.94
6.5 / 165.1 0.750 / 19.1 0.50 / 12.7
8.5 / 215.9 1.125 / 28.6 0.75 / 19.1
10.5 / 266.7 1.125 / 28.6 0.75 / 19.1
12.0 / 304.8 2.50 / 63.5 1.75 / 44.5
20.0 / 508.0 2.50 / 63.5 1.75 / 44.5
Core
Code
D
K
K
M
P
P
S
S
Voltage
565
625
1625
2845
3595
4595
4970
8900
Standard
Terminal
57
40
40
40
46
46
45
45
Non-Inductive versions available; Other sizes available; 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
Select 270 Type fixed resistors for applications requiring wattage ratings from 12 to 1000 watts.
The 270 Type resistors are equipped with lug terminals suitable for soldering or sturdy bolt con-
nection. When secure mounting is required, the hollow core of these resistors permit fastening with
spring-type brackets, thru bolts or thru bolts with slotted-steel brackets.
Suitable for rugged applications, the 270 Type resistors feature all-welded construction and
durable lead free vitreous enamel coating. Mounting brackets not included with resistors.
S pec i f i c a t i o n s
Material
Coating: Lead free vitreous
enamel. Very large models (750
watts and up) are supplied in
Silicone Ceramic. Also available
in low-cost Centohm coating;
Consult factory.
Core: Tubular ceramic.
Terminals: Solder coated radial
lug. RoHS solder composition is
96% Sn, 3.5% Ag, 0.5% Cu
Derating: Linearly from 100% @
+25°C to 0% @ +350°C.
Electrical
Tolerance:
±5% 1Ω and over (J)
±10% under 1Ω (K)
Power rating: Based on 25°C free
air rating.
Overload: 10 times rated wattage
for 5 seconds.
Temperature coefficient:
1 to 20Ω: ±400 ppm/°C.
Above 20Ω: ±260 ppm/°C
Dielectric withstanding voltage:
1000 VAC: 12 to 100 watt rating.
3000 VAC: 175 to 225 watt rat-
ing (Measured from terminal to
mounting bracket)
To calculate max. amps: use the
formula √P/R
ordering infO
Non-inductive
F = Fast on Blank = Standard
RoHS
(optional) N = Non-inductive Compliant
L 25J100E
Series
Coating
Blank = Vitreous
C = Centohm
S = Silicone
Wattage Tolerance
J = 5%
K = 10%
Ohms
1R0 = 1 Ω
250 = 250 Ω
1K0 = 1,000 Ω
25K = 25,000 Ω
25K5 = 25,500 Ω
Made-to-order parts
Non-inductive
Blank = Standard
N = Non-inductive
Core Diameter
See “Core and
Terminal Selection”
RoHS Compliant
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Coating
Wattage
270 = Vitreous
470 = Silicone Ceramic _{Terminal Type}
See “Resistor Terminals
for Tubular Cores”
Ohms
Tolerance
R500 = 0.500 Ω J = 5%
1R00 = 1 Ω
K = 10%
250R = 250 Ω
1K00 = 1,000 Ω
See website for
25K0 = 25,000 Ω custom core and
25K5 = 25,500 Ω
terminal info
Power limitations for high resis-
tance values: When resistance
exceeds the resistance values
listed, derate the Power Rating by
25% to improve reliability:
Power
rating
12W
25W
50W
100W
Resistance No power
value derating
3,900Ω
12,000Ω
35,000Ω
75,000Ω
necessary
for ratings
higher than
100W.
Standard part numbers for 270 series
Ohmic
value 12 Watt
0.51  L12JKR51E
1  L12J1R0E
3.3  L12J3R3E
4.7  L12J4R7E
10  L12J10RE
12  L12J12RE
15  L12J15RE
22  L12J22RE
27  L12J27RE
33  L12J33RE
47  L12J47RE
68  L12J68RE
82  L12J82RE
100  L12J100E
150  L12J150E
Ohmic
value
180
270
330
390
470
560
1000
1200
1500
2200
2700
4700
10000
18000
22000
51000
12 Watt
 L12J180E
 L12J270E
 L12J330E
 L12J390E
 L12J470E
 L12J560E
 L12J1K0E
 L12J1K2E
 L12J1K5E
 L12J2K2E
 L12J2K7E
 L12J4K7E
 L12J10KE
 L12J18KE
 L12J22KE
 L12J51KE
 = Standard values; check availability using the worldwide
inventory search at www.ohmite.com
Red outlined values supplied in Silicone-Ceramic coatings
instead of vitreous enamel.
Wattage
Part No.
Prefix 
Suffix
1 –––1R0E     
2 –––2R0E     
3 –––3R0E     
4 –––4R0E     
5 –––5R0E     
10 –––10RE     
15 –––15RE 
25 –––25RE     
50 –––50RE     
75 –––75RE     
100 –––100E     
125 –––125E

150 –––150E     
200 –––200E  
250 –––250E     
500 –––500E     
750 –––750E   

800 –––800E  
1,000 –––1K0E     
1,500 –––1K5E   

2,000 –––2K0E     
Wattage
Part No.
Prefix 
Suffix
2,500 –––2K5E   

3,000 –––3K0E     
3,500 –––3K5E 
4,000 –––4K0E  
5,000 –––5K0E     
6,000 –––6K0E 
7,500 –––7K5E   

10,000 –––10KE     
12,000 –––12KE 
15,000 –––15KE   

20,000 –––20KE   

25,000 –––25KE  

30,000 –––30KE


35,000 –––35KE

40,000 –––40KE 

50,000 –––50KE   

60,000 –––60KE

75,000 –––75KE


100,000 –––100KE     
150,000 –––150KE 
200,000 –––200KE 
250,000 –––250KE 
34 Ohmite Mfg. Co.
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax [phone] • www.ohmite.com • [e-mail]