Product Overview
THN 20-7215UIR is a THN 20UIR series DC/DC railway converter with an ultra-wide 12:1 input voltage range and a power output of 20W. It comes in a compact, fully encapsulated 1”x1” housing for highest reliability. The default variant features a pre-mounted heatsink for convection cooling up to +70°C without derating. Due to its dedicated holdup capacitor connection, it meets extended holdup-time requirements without the need for bulky input capacitors. It is EN 50155 certified for rolling stock applications, EN 61373 certified for resistance against mechanical shock and vibration and EN 45545-2 certified for fire behaviour. It is also comes with IEC/EN/UL 62368-1 safety approvals for use in a wide range of demanding industrial applications. Device features protection against short-circuit (SCP), overvoltage (OVP) and overtemperature (OTP).
- Dedicated holdup capacitor connection, fully encapsulated
- Reinforced 3000VAC I/O isolation (input to output, 60s), single output
- Remote on/off and trim function, 3 year product warranty
- 72VDC nominal input voltage, 24VDC Vnom output 1
- 835mA Imax output current 1, 88% typical efficiency
- Switching frequency range from 190 to 250KHz (PWM)
- Copper, nickel plated housing material, metal case housing type
- THD (through-hole device) connection type
- Operating temperature range from -40°C to +105°C
- Pollution degree PD 2, over voltage category OVC II
Product details
| Power Supply Applications |
ITE, Industrial & Railway |
| Input Ratio |
12:1 |
| No. of Outputs |
1 Output |
| Output Current - Output 1 |
835mA |
| Output Current - Output 2 |
- |
| Isolation Voltage |
3kV |
| DC / DC Converter Output Type |
Fixed |
| Height |
18.7mm |
| Input Voltage DC Min |
14VDC |
| Product Range |
THN 20UIR Series |
| DC / DC Converter Type |
DIP |
| Output Power Max |
20W |
| Output Voltage - Output 1 |
24VDC |
| Output Voltage - Output 2 |
- |
| Output Regulation |
- |
| Input Voltage DC Nom |
72V |
| Width |
26.5mm |
| Depth |
25.4mm |
| Input Voltage DC Max |
160VDC |
| SVHC |
Lead (04-Feb-2026) |
Other details
| Brand |
TRACO POWER |
| Part Number |
THN 20-7215UIR |
| Quantity |
Each |
| Technical Data Sheet (1.25MB) EN |
View or download |
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