350mA 18 to 36V Constant Current LED Driver AC DC Converter Topology 1 Output
Features
Output Voltage Range: 18 to 36 V (DC)
Output Current: 350 mA
Efficiency: 84 %
Input Voltage (AC): 100 to 304 V
Input Frequency Range: 47 to 63 Hz
Power Factor: 0.9 at Full Load & 115 VAC
Maximum Crest Factor (Ipk): 1.5
Maximum Input Current at 115/230 VAC: 0.15 A / 0.3 A
Maximum Inrush Current at 115/230 VAC (Cold Start): 5 A / 10 A
Set Point Accuracy: ±5 %
Current Accuracy: ±1% (when applicable)
Ripple and Noise: ±5 %
Load Regulation: ±3.0 %
Line Regulation: ±3.0 %
Minimum Hold-up Time at 120 VAC & 80% Load: 1/2 Cycle
Over Current Protection (Auto-recovery): 120 %
Over Voltage Protection (Auto-recovery): 120 %
Dimensions (L x W x H): 3.74 in x 1.57 in x 0.97 in (95 mm x 40 mm x 25 mm)
Weight: 120 g
Reliability (MTBF): >100k hrs. (Full Load & 25 °C Operation)
Operating Temperature: -30 to +60 Full Load, derate 1%/°C from 60 to 70 max °C
Storage Temperature: -40 to +85 °C
Cooling: Convection Cooled Operation
Humidity: 5 to 95 % RH, non-condensing
Vibration: 5 to 50 Hz, 2G 1 min/cycle, period of 60 min, each axis
EMC Emissions: Compliant to 47CFR, Part 2, Part 15 and Cispr PUB, 22 Class B
Safety Approvals: CE Mark (LVD), UL/cUL 1310, UL48
Input Wire Gauge / Lead Length: 18 AWG / 5 in
Output Wire Gauge / Lead Length: 18 AWG / 5 in
Warranty: 3 years
Overview
The Triad Magnetics TLD1020-36-C0350 is a single output, encapsulated switching power supply from the TLD1020/40 Series, a 20–40 W series rated for indoor and outdoor IP66/NEMA 4 applications. It operates as a constant current source, delivering 350 mA DC across an output voltage range of 18 to 36 V DC. The unit accepts a wide-range AC input of 100 to 304 V at 47 to 63 Hz, covering both North American and international mains supplies. The fully encapsulated, sealed construction makes it well suited for LED driver and constant current load applications in demanding environments.
The unit incorporates Power Factor Correction (PFC), achieving a power factor of 0.9 at full load and 115 VAC. This reduces reactive current draw on the supply circuit - relevant for commercial and outdoor lighting installations subject to energy codes or utility requirements. Efficiency is rated at 84%. The convection-cooled, fanless design operates without moving parts. Auto-recovery protection covers both overcurrent and overvoltage faults, each triggering at 120% of rated output, eliminating the need for manual reset after most fault events. The supply carries CE Mark (LVD), UL/cUL 1310, and UL48 safety certifications and meets EMC emissions requirements per 47CFR Parts 2 and 15 and CISPR Publication 22 Class B.
The TLD1020-36-C0350 measures 3.74 in x 1.57 in x 0.97 in (95 mm x 40 mm x 25 mm) and weighs 120 g, providing a compact footprint for enclosure or fixture mounting. Both input and output connections use 18 AWG wire leads, 5 in in length. Operating temperature range is −30 °C to +60 °C at full load, with 1%/°C derating from 60 °C up to a maximum of 70 °C. Designers should confirm that the constant current output mode and the 18–36 V DC output voltage range are compatible with the intended load, and that the 5 in lead length suits the wiring configuration.
