This document describes the features and characteristics of a product, such as universal input, built-in EMI filter, low cost, etc. The product is suitable for telecommunications, computer peripherals, test and industrial equipment, medical instruments, and business machines.
The TPS40LB series is a compact, box‑type switching mode power supply rated at 40 W. It accepts a universal AC input (90‑264 VAC) and provides various fixed output voltages ranging from 5 V to 48 V with typical efficiencies around 65 % at full load. Key features include a built‑in EMI filter, optional constant‑current mode, and short‑circuit protection.
Designed for telecommunications, computer peripherals, test and industrial equipment, medical instruments, and business machines, the unit meets FCC Class B, CISPR 22, EN55022, VCCI Class 2, and CE EN61000‑3‑2/‑4 standards. It operates from 0 °C to 50 °C (derating to 70 °C) and is qualified for vibration, humidity, and storage conditions specified by the manufacturer.
| Input frequency | 47~63 Hz |
|---|---|
| Efficiency (full load) | 65 % typical |
| Maximum output power | 40 W |
| Hold‑up time (full load, 175 VAC) | 10 ms |
| Line regulation | ±0.5 % typical |
| Operating temperature range | 0 °C to 50 °C (derate to 70 °C) |
| MTBF (demonstrated) | >100,000 hours |
The power supply can deliver up to 40 W of output power.
It is intended for telecommunications, computer peripherals/LAN & hub, test and industrial equipment, medical instruments, and business machines.
The device is listed for FCC Part 15 Class B, CISPR 22 / EN55022 Class B, VCCI Class 2, CE EN61000‑3‑2/‑4, UL1950/c UL, optional CSA 22.2 Level 3, TUV EN60950, and optional UL 2601.