iQL Series
72-308W Quarter Brick Converter
Features
Standard Quarter Brick Footprint
18-36, 36-75VDC Inputs
1.2V 60A, 28V 11A Nominal Outputs
Through Hole Mounting
1500VDC Basic Isolation
Baseplate cooling
High operating ef ciency (up to 93.5%)
Constant switching frequency
Key Market Segments & Applications
Speci cations
Model IQL
Nominal Output Voltage VDC 1.2 2.5 3.3 5 12 28
Input Voltage Range VDC See Model Selector
Ripple & Noise (max)(pk-pk) (1) mV 60 30 100 80 120 500
Line Regulation (max) mV 1 5 6.6 10 60 100
Load Regulation (max) mV 1 5 15 10 60 100
Overload Protection Threshold (3) A 71 69 70 50 27.5 12.4
Overvoltage Protection (Typ) (6) VDC 1.4 3.1 4.1 6.1 14.7 33.6
Overtemperature Protection (3) - Yes
(4)
Remote Sense - Yes Yes Yes No No No
Remote On / Off - Negative Logic (5)
Temperature (operating) C -40 to 115 -40 to 115 -40 to 125 -40 to 119 -40 to 118 -40 to 115
Temperature (storage) C -55 to 125
Humidity (operating) - 20 to 95% (non-condensing)
Humidity (storage) - 10 to 95% (non-condensing)
Cooling - Conduction, convection, or forced air
Isolation Voltage VDC 1500 Input - Output, 1500 Input - Baseplate
2 2
Vibration (non operating) - 5 to 50Hz@0.5g (4.9m/s ), and 50 to 500Hz@1.5g (14.7m/s ) per Bellcore TR-EOP-000063-5.4.4
Shock - 50 G at 6 ms pulse in three axes
Safety Agency Approvals - UL60950 (US and Canada), VDE0805, CB scheme (IEC950), CE Mark (EN60950)
Weight (max) g 55g open frame, 70g with base plate
Size mm 57.9 x 36.8 x 13.21
Warranty yrs 3 Years
(1) See website for detailed speci cation and test methods.
(2) Latching.
(3) Non-latching.
(4) iQL24021A120V has remote sense.
(5) iQL48011A 280V-008-R has positive logic.
(6) All models have the latching type except for model numbers with note (3).
1-800-526-2324 www.us.tdk-lambda.com/lp/ 165 Disclaimer: us.tdk-lambda.com/lp/legal.htmiQL Series
Model Selector
Input Output Adjust Max. Max. Output Base Ef ciency at Pin
Model Voltage (V) Voltage (V) Range (V) Curr. (A) Power (W) Plate Full Load (%) Length (in)
iQL48060A012V-0B3-R (3) 36 - 75 1.2 0.96 - 1.32 60 72.0 No 83.5 0.145
iQL48060A025V-0B3-R (3) 36 - 75 2.5 2.0 - 2.75 60 150.0 No 89.0 0.145
iQL48060A025V-0B9-R 36 - 75 2.5 2.0 - 2.75 60 150.0 No 89.0 0.180
iQL24050A033V-009-R 18 - 36 3.3 2.64 - 3.63 50 165.0 Yes 90.5 0.180
iQL48060A033V-003-R (3) 36 - 75 3.3 2.64 - 3.63 60 198.0 Yes 91.0 0.145
iQL48060A033V-009-R 36 - 75 3.3 2.64 - 3.63 60 198.0 Yes 91.0 0.180
iQL48060A033V-0B9-R 36 - 75 3.3 2.64 - 3.63 60 198.0 No 91.0 0.180
iQL24040A050V-001-R (2) 18 - 36 5.0 4.0 - 5.5 40 200.0 Yes 91.0 0.145
iQL24040A050V-009-R 18 - 36 5.0 4.0 - 5.5 40 200.0 Yes 91.0 0.180
iQL48045A050V-001-R 36 - 75 5.0 4.0 - 5.5 45 225.0 Yes 91.0 0.145
iQL48045A050V-0B3-R (3) 36 - 75 5.0 4.0 - 5.5 45 225.0 No 91.0 0.145
iQL48045A050V-009-R 36 - 75 5.0 4.0 - 5.5 45 225.0 Yes 91.0 0.180
iQL48045A050V-0B9-R 36 - 75 5.0 4.0 - 5.5 45 225.0 No 91.0 0.180
iQL24021A120V-001-R (2) 20 - 36 12.0 9.6 - 13.2 21 252.0 Yes 92.0 0.145
iQL24021A120V-009-R 20 - 36 12.0 9.28 - 12.76 21 252.0 Yes 92.0 0.180
iQL48025A120V-009-R 36 - 75 12.0 9.6 - 13.2 25 300.0 Yes 93.5 0.180
iQL48025A120V-0B9-R 36 - 75 12.0 9.6 - 13.2 25 300.0 No 93.5 0.180
iQL48025A120V-001-R 36 - 75 12.0 9.6 - 13.2 25 300.0 Yes 94.0 0.145
iQL48011A280V-0A9-R 36 - 75 28.0 16.8 - 30.8 11 308.0 Yes 92.5 0.180
iQL48011A280V-008-R 36 - 75 28.0 22.4 - 30.8 11 308.0 Yes 92.5 0.180
iQL48011A280V-009-R 36 - 75 28.0 27.4 - 28.6 11 308.0 Yes 92.5 0.180
(2) Latching.
(3) Non-latching.
Preferred Model
Recommended Footprint (Bottom View) Pinout
PIN Function PIN Function
1 Vin (+) 5 Sense (-)(if applicable)
4
2 On / Off 6 Trim
3
3 Vin (-) 7 Sense (+)(if applicable)
2
4 Vo (-) 8 Vo (+)
18
For Additional Information, please visit
us.tdk-lambda.com/lp/products/iql-series.htm
1-800-526-2324 www.us.tdk-lambda.com/lp/ 166 Revision A7.2: Apr 2015