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TRACO POWER TSR148120WI Non-isolated DC/DC Converter

The TSR 1WI series is a non-isolated point-of-load (POL) converter in a standard SIP-3 package, designed to operate with an ultra-wide input voltage range of 8:1. It supports the majority of standard bus and battery voltages, making it a versatile solution for distributed power systems requiring different input voltages. Its high efficiency—up to 93% at 24V input—enables operation in a temperature range of -40°C to +80°C without derating (up to +50°C). This converter can deliver a maximum of 1A output current and features low standby current, precise regulation, and protection against short circuits, overvoltage, and overload conditions. It offers excellent line and load regulation, making it an ideal drop-in replacement for less efficient linear regulators like the LMxx series. The device has a switching frequency between 263kHz and 438kHz, a metal housing with UL 94 V-0 rated epoxy potting, and includes a 3-year warranty. Its pin compatibility with LMxx regulators simplifies integration into existing designs.

Authorized Distributors
Source:Newark
Part No:TSR 1-48120WI
Stock:2
Inv Date:05-30-2026
Price: Unit price: $20.47
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Source:DigiKey
Part No:TSR 1-48120WI
Stock:68
Inv Date:05-30-2026
Price: Unit price: $17.86
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Part No:TSR 1-48120WI
Stock:149
Inv Date:05-31-2026
Price: Unit price: $17.3
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Part No:TSR 1-48120WI
Stock:0
Inv Date:05-30-2026
Price: Unit price: $19.6
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Source:Arrow EU
Part No:TSR 1-48120WI
Stock:34
Inv Date:05-31-2026
Price: N/A
Buy/RFQ:

TRACO POWER TSR148120WI Non-isolated DC/DC Converter Specifications:

  • Input Voltage Range: 9-72 VDC
  • Output Voltage: 12 VDC
  • Output Current Max: 1 A
  • Efficiency: Up to 93%
  • Operating Temperature: -40°C to +80°C (up to +50°C without derating)
  • Switching Frequency: 263-438 kHz depending on model
  • Protection: Short circuit, overvoltage, overtemperature
  • Housing Material: Metal with UL 94 V-0 epoxy potting
  • Connection Type: Through-Hole (THD)
  • Humidity: 95% max. (non-condensing)
  • Dimensions: See datasheet outline dimensions
  • Reliability: Calculated MTB 8,215,000 h
  • Vibration: MIL-STD-810F
  • Insulation System: Non-isolated
  • Weight: 559 g
  • Thermal Impedance: 35 K/W
  • Environmental Compliance: Reach, RoHS
  • Start-up Time: 25 ms typ.
  • Rise in temperature: -55°C to +125°C range

Buy the Buy Traco Power TSR 1WI Series Part Number TSR148120WI Online

Purchase the Traco Power TSR 1WI series DC/DC converter online today and enhance your power system with its high efficiency, broad input voltage support, and comprehensive protections. Designed for versatile application in distributed power networks and battery-powered setups, this converter ensures stable output with up to 93% efficiency and protection against short circuits, overvoltage, and overtemperature conditions. Its robust construction, low standby current, and 3-year warranty make it an ideal choice for engineers and technical buyers seeking durable, drop-in replacement solutions that simplify integration and improve overall system reliability.

Buy Traco Power TSR 1WI series converter now and experience reliable, high-efficiency power supply for demanding distributed systems.

Frequently Asked Questions

Where can I buy TRACO POWER TSR148120WI?

You can click on the BUY or RFQ button to purchase TSR148120WI from an authorized TRACO POWER distributor.

How do I troubleshoot issues or seek technical support for part TSR148120WI?

You can download the TSR148120WI datasheet or visit the TRACO POWER website for support.

Who is the manufacturer of TSR148120WI?

TRACO POWER

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