The TL Series add heat sink-
able options to the thick film
resistor family. The resistor
element is packaged with plas-
tic insulators, and quick-con-
nect terminals in a symmetrical
aluminum profile for easy heat
sink mounting. Special tapped
configurations are offered to
reduce on board component
count.
A P P L I C A T I O N S
• Semiconductor Balancing
• Frequency Converters
• Snubber
• In-Rush Current Limiter
• Bleeder Resistor
• Power Switching
• Voltage Dividers
TL Series
Thick Film Power Resistors
Heat Sinkable
A
B
S P E C I F I C A T I O N S
Material
Resistive Element: Thick Film on
Alumina
0.20"
Efficient thermal packag-
5.10 mm
ing provides improved heat
conduction to the heat sink.
Self-insulating package design
increases voltage withstanding
characteristics when compared
to traditional aluminum hous-
ings. The in line mounting pro-
file makes the TL Series easily
adaptable to most heat sink
systems. Thermal compound
is always recommended when
heat sinking.
C*
0.25"
6.3 mm
Housing: Aluminum
Insulators: Glass reinforced high
Profile 1.01"
25.7 mm
®
temperature Valox
0.98"
Terminals: Tinned brass
25 mm
Electrical
*For adjacent taps,
C = 0.665" (16.9mm)
Footprint 0.96"
24.4 mm
Power Range: 27 – 275 watts
Resistance Range:
0.3 ohm – 4 megohm
Tolerance:
Ultra Power (U Style): ±10% std;
Standard Power: ±10% std;
5% and 1% available
Temperature Coefficient:
±100 PPM
Test Voltage for 1 Minute:
6000 VDC/2500 VAC
Working Voltage: 1200 VAC
External Creeping Distance:
12mm
Operating
Voltage Withstanding
Dielectric
Ultra*
Std**
Ohm
A
B
Series Wattage Wattage
Range
(mm)
(mm) VAC
Voltage VAC
F E A T U R E S
• Very low inductance
• Low profile design
• In-Line Mounting Profile
• 1/4” Quick connect terminals
• Consult factory for common,
isolated, or special multiple tap
options.
TL54
TL71
35
96
27
71
0.3 - 1 Meg
1.0 - 2 Meg
54
71
88
46 1200
63 1200
80 1200
96 1200
114 1200
2500
2500
2500
2500
TL88 155
TL104 215
†TL122 275
114 1.5 - 3 Meg
158 2.0 - 4 Meg 104
202 2.0 - 4 Meg 122
2500
* For properly heat sinked, untrimmed resistors - see chart
** For properly heat sinked, trimmed resistors - see chart
† Power Ratings are theoretical. Consult Factory for details.
Temperature Limits: -40°C to
+125°C
Insulation: >1002 Mohm/500V
Air Distance, Terminal to
Ground: 7mm
Inductance: 50-100 nH
S TA N D A R D S P E C I F I C AT I O N S
E L E C T R I C A L / M E C H A N I C A L S P E C S
Tolerance
Ultra Power
Std Power
±10%, 20% only
±10% Std., ±1%, ±5%
±250 PPM
6000 VDC/2500 VAC
1200 VAC
Type
Values for Standard Resistors
TL54
35
TL71
96
TL88
155
78
TL104 TL122
Temperature Coefficient
Test Voltage for 1 min
Working Voltage
Max. Rated Wattage
Nominal Power
W
W
215
108
432
2500
2
275
137
548
2500
2
18
48
Surge Load in 10 sec
Max Voltage Between Terminal
Resistance Min
W
72
192
2000
1
312
2500
1.5
Temperature Limits
Inductance
-40°C - +125°C
50-100nH
V
1000
0.3
ohm
ohm
Resistance Max
1 meg 2 meg 3 meg 4 meg 4 meg
Mechanics:
A
B
C
mm
mm
mm
54
46
16.9
71
63
33.8
88
80
50.7
104
96
67.6
122
114
84.5
S TA N D A R D V A L U E S
Weight
g
26
33
44
55
65
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
T H E R M A L R E S I S TA N C E ( ° C / W )
0.5
1.0
1.5
2.0
3.0
4.0
5.0
10.0
15.0
22.0
47.0
––– R50
––– 1R0
––– 1R5
––– 2R0
––– 3R0
––– 4R0
––– 5R1
240.0
470.0
510.0
––– 240
––– 470
––– 510
––– 750
––– 1K0
––– 1K1
––– 2K2
––– 4K7
––– 5K1
––– 10K
––– 22K
––– 51K
TL54
1.26
1.67
TL71
0.53
0.70
TL88
0.34
0.45
TL104
0.25
0.33
Ultra Power(10% Tolerance)
Std Power (5% - 3% Tolerance)
750.0
Consult factory for multiple tap options in common, isolated, and special configurations.
1,000.0
1,100.0
2,200.0
4,700.0
5,100.0
10,000.0
22,000.0
51,000.0
O R D E R I N G I N F O R M AT I O N
––– 10R
––– 15R
E = RoHS compliant
Available Jan. 2006
––– 22R
––– 47R
––– 75R
––– 100
––– 150
––– 220
� ꢀ ꢁ ꢂ ꢃ ꢄ ꢅ ꢆ ꢇ ꢂ ꢂ ꢈ
75.0
100.0
150.0
220.0
Size
Tolerance Power
Ohms
= Standard values
F = 1% Blank = standard R500 = 0.50
J = 5% U = ultra
K= 10%
10R0 = 10.0
1K00 = 1,000
1M00 = 1,000,000
= Non-standard values subject to
minimum handling charge per
item
Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 • Tel. 1-866-9-OHMITE • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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