TLV - Vitreous Enamel Power Resistors
12W to 1000W Fixed or Adjustable
SPECIFICATIONS
MATERIAL
Coating: Flameproof vitreous enamel - all welded construction
Core: Steatite ceramic
Derating: Linearly from 100% @ +25°C to 0% at +350°C.
ELECTRICAL
Tolerance: ±5% 1 ohm and over. ±10% under 1 ohm
Power rating: Based on 25°C free air rating
Overload: 10 times rated wattage for 5 seconds
Temperature coefficient: 1 to 20 ohms: ±400 ppm/°C.
Above 20 ohms: ±260 ppm/°C
Dielectric withstanding voltage: 1000 VAC: 12 to 100 watt rating. 3000VAC: 175 to 225 watt (measured from terminal to mounting bracket)
To calculate max. amps: Use formula
Note: For adjustable resistor 100% of the resistance must be in the circuit for 100% of the rated wattage. By setting the adjustment at a lesser resistance the wattage will drop proportionately. Example: a 12 ohm resistor set at 4 ohms would be at 1/3 original wattage.
Type F - Fixed Resistor
Type A - Adjustable Resistor
Type
Wattage
Dimensions (in. / mm)
Resistance
Range
L
Length
D
O.D
C
I.D.
Max.
Working
Voltage
Fixed
Adjustable
TLV-12
12
1.75 / 44.4
0.313 / 7.94
0.188 / 4.76
565
0.1-51K
1.0-10K
TLV-25
25
2.0 / 50.8
0.562 / 14.3
0.313 / 7.94
625
0.15-100K
1.0-25K
TLV-50
50
4.0 / 101.6
0.562 / 14.3
0.313 / 7.94
1625
0.38-260K
1.0-100K
TLV-100
100
6.5 / 165.1
0.750 / 19.1
0.50 / 12.7
2845
0.23-101K
1.0-100K
TLV-175
175
8.5 / 215.9
1.125 / 28.6
0.75 / 19.1
3595
0.13-101K
1.0-100K
TLV-225
225
10.5 / 226.7
1.125 / 28.6
0.75 / 19.1
4595
0.16-129K
1.0-100K
TLV-500
500
12.0 / 304.8
2.50 / 63.5
1.75 / 44.5
4970
0.38-218K
1.5-15K
TLV-1000
1000
20.0 / 508.0
2.50 / 63.5
1.75 / 44.5
8900
0.69-392K
3.0-27.7K
Other sizes available. Consult factory.
For non-inductive add "N" after wattage.
Terminal Dimensions
Lug
Dimensions
TLV-12
TLV-25, 50 & 100
TLV-175 & 225
TLV-500 & 1000
Inch
MM
Inch
MM
Inch
MM
Inch
MM
Width
.187
4.7
.250
6.4
.313
8.0
.563
14.3
Height
.438
11.1
.563
14.3
.625
15.9
.750
19.1
Hole Dia.
.104
2.6
.166
4.2
.196
5.0
.206
5.2
"Z" type mounting brackets standard. Other types available on request
Derating Curve
ORDERING INFORMATION
Example: 100W Fixed 10 ohm 5%
TLV100
F
10R0
J
Type
Resistance
Tolerance
F=Fixed
A=Adjustable
4 digit. <100 use R for decimal. >100 4th digit is multiplier