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350mA Externally Dimmable BuckPuck AC Driver - PCB Mount

350mA Externally Dimmable BuckPuck AC Driver - PCB Mount
The 3021-A-E-350 BuckPuck is a 350mA, 7-24 AC, current regulating driver designed for powering all types of high power LED modules and arrays. A fast response, current-sensing circuit makes it ideal for LED flashing or strobing.

This driver requires no external current limiting resistors or heat sinking. It features a 7-pin SIP connection for through-hole PCB mounting, or it can connected to with an optional wiring harness.
Part Number : 3021-A-E-350
Quantity Price
10 - 24 $14.88
25 - 49 $14.42
50 - 99 $13.96
100 - 249 $13.50
250 - 999 $13.04
1000+ $12.27
Quantity discount pricing will be automatically
applied when you add this part to the cart.
Product AttributesRoHS Compliant, Pb Free
Output Current 350mA
Minimum Input Voltage 7VRMS
Maximum Input Voltage 24VRMS
Output Voltage 32VDC
(1)Input Margin 4VRMS
Dimmable External
Control Pin Voltage 10V
Efficiency 95%
Output Tolerance ±10
Maximum Flash Frequency 10kHz
Minimum Strobe Pulse Width 50 µs
(2)Output Rise Time <10 µs
(2)Output Fall Time < 350 µs
Operating Temperature Range -40 to +80°C
Weight 8.1 g
Dimensions L x W x H 21 x 21 x 11 mm
  1. Due to the nature of a buck regulator, the input voltage to the driver must always be higher than the total forward voltage drop of all series connected LEDs. For example, if you have a series connected string of six LEDs where each LED has an average forward drop of 3.5V, the required minimum input voltage would be 25VAC. (3.5 x 6 + 4) A 26VAC power supply would be a good choice for this application.
  2. The actual value will vary greatly depending on the input and/or output voltages. Value shown is for Vin = 24VDC VOUTt=20VDC LED load. Actual values will be smaller in most applications.
  3. This information is for reference only. Refer to the manufacturers datasheet for official specifications.
Documents & Media
Datasheets 3021-A-E-350 Datasheet
Application Notes LED Drivers And Capacitor Reliability
Flashing LEDs with BuckPuck and BoostPuck Drivers
LED Knowledgebase
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