Standard part numbers and availability Download Datasheet (PDF)

TL Series

Series	Max. Wattage*	Max. Wattage Trimmed**	Ohm Range	A (mm)	B (mm)	Operating Voltage VAC	Dielectric Withstanding Voltage VAC
TL54	35	27	0.3 - 1 Meg	54	46	1200	2500
TL71	96	71	1.0 - 2 Meg	71	63	1200	2500
TL88	155	114	1.5 - 3 Meg	88	80	1200	2500
TL104	215	158	2.0 - 4 Meg	104	96	1200	2500
§TL122	275	202	2.0 - 4 Meg	122	114	1200	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.

The TL Series add heat sinkable options to the thick film resistor family. The resistor element is packaged with plastic insulators, and quick-connect terminals in a symmetrical aluminum profile for easy heat-sink mounting. Special tapped configurations are offered to reduce on-board component count. Efficient thermal packaging provides improved head conduction to the heat sink. Self-insulating package design increases voltage withstanding characteristics when compared to traditional aluminum housings. The in-line mounting profile makes the TL Series easily adaptable to most heat-sink systems. Thermal compound is always recommended when heat sinking.

FEATURES Very low inductance Low profile design In-Line Mounting Profile 0.25 in. Quick connect terminals Consult factory for common, isolated, or special multiple tap options. APPLICATIONS Semiconductor Balancing Frequency Converters Snubber In-rush Current Limiter Bleeder Resistor Power Switching Voltage Dividers SPECIFICATIONS Material Resistive Element: Thick Film on Alumina Housing: Aluminum Insulators: Glass reinforced high temperature Valox® Terminals: Tinned brass Electrical Power Range: 27-275 watts Resistance Range: 0.3 ohm – 4 megohm Tolerance: ±10%, 20% only (Ultra Power); ±10% Std., ±1%, ±5% (Std. Power) Temperature Coefficient: ±250 PPM Test Voltage for 1 Minute: 6000 VDC/2500 VAC Working Voltage: 1200 VAC External Creeping Distance: 12mm Temperature Limits: -40°C to +125°C Insulation: >1002 Mohm/500V Air Distance, Terminal to Ground: 7mm Inductance: 50-100 nH

ELECTRICAL/MECHANICAL SPECS

Values for Standard Resistors	TL54	TL71	TL88	TL104	TL122
Rated Wattage max. (W)	35	96	155	215	275
Nominal Power (W)	18	48	78	108	137
Surge Load in 10 sec. (W)	72	192	312	432	548
Voltage Between Terminals max. (V)	1000	2000	2500	2500	2500
Resistance min. (ohms)	0.3	1	1.5	2	2
Resistance max. (ohms)	1M	2M	3M	4M	4M
Dim. A (mm)	54	71	88	104	122
Dim. B (mm)	46	63	80	96	114
Dim. C (mm)	16.9	33.8	50.7	67.6	84.5
Weight TL (g)	26	33	44	55	65
Ultra Power (10% Tolerance)	1.26	0.53	0.34	0.25
Std Power (5% - 3% Tolerance)	1.67	0.70	0.45	0.33

Consult factory for multiple tap options in common, isolated, and special configurations.

HOW TO ORDER

For special tapped configurations, use the ordering information shown to specify values needed. Derating of total power may be required for some configurations.

MAXIMUM AND NOMINAL POWER RATINGS FOR ULTRA POWER AND STANDARD POWER RESISTORS

Key:
B Standard values
C Non-standard values subject to minimum handling charge per item

Ohms	Part No. Prefix (right) Suffix (below)	Wattage max.
		35 TL54K---	96 TL71K---	155 TL88K---	215 TL104K---	275 TL122K---
0.5	--- R50	B
1.0	--- 1R0	B	B	B	B
1.5	--- 1R5			B
2.0	--- 2R0	B	B	B	B	B
3.0	--- 3R0	B	B	B	B
4.0	--- 4R0	B	B	B	B	B
5.0	--- 5R1	B	B	B	B
10.0	--- 10R	B	B	B	B	B
15.0	--- 15R	B	B	B	B
22.0	--- 22R	B	B	B	B	B
47.0	--- 47R	B	B	B	B	B
75.0	--- 75R	B	B	B	B	B
100.0	--- 100	B	B	B	B	B
150.0	--- 150	B	B	B	B
220.0	--- 220	B	B	B	B	B
240.0	--- 240	B	B	B	B
470.0	--- 470	B	B	B	B	B
510.0	--- 510	B	B	B	B
750.0	--- 750	B	B	B	B	B
1,000.0	--- 1K0	B	B	B	B	B
1,100.0	--- 1K1	B	B	B	B
2,200.0	--- 2K2	B	B	B	B	B
4,700.0	--- 4K7	C	C	C	C
5,100.0	--- 5K1	C	C	C	C
10,000.0	--- 10K	C	C	C	C
22,000.0	--- 22K	C	C	C	C
51,000.0	--- 51K	C	C	C	C