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                                                                                                  1. Home
                                                                                                  2. Power Supplies
                                                                                                  3. DC / DC Converters
                                                                                                  4. Linear Regulator Replacements
                                                                                                  Print Page

                                                                                                  TSR 1-4890WI

                                                                                                  DC/DC Converter, 1 Output, 9 W, 9 V, 1 A, TSR 1WI Series

                                                                                                  TRACO POWER
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  TRACO POWER TSR 1-4890WI
                                                                                                  ManufacturerTRACO POWER
                                                                                                  Manufacturer Part NoTSR 1-4890WI
                                                                                                  Order Code3255315
                                                                                                  Product RangeTSR 1WI Series
                                                                                                  Your Part Number
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  2 In Stock

                                                                                                  Need more?

                                                                                                  2 Delivery in 3-4 Business Days(UK stock)
                                                                                                  QuantityPrice
                                                                                                  1+HK$146.820
                                                                                                  5+HK$144.240
                                                                                                  10+HK$141.650
                                                                                                  50+HK$132.740
                                                                                                  100+HK$121.710
                                                                                                  250+HK$118.610
                                                                                                  Price for:Each
                                                                                                  Minimum: 1
                                                                                                  Multiple: 1
                                                                                                  HK$146.82
                                                                                                  Line Note
                                                                                                  Added to your Order Confirmation, Invoice, and Dispatch note for this order only.

                                                                                                  Product Information

                                                                                                  TRACO POWER
                                                                                                  ManufacturerTRACO POWER
                                                                                                  Manufacturer Part NoTSR 1-4890WI
                                                                                                  Order Code3255315
                                                                                                  Product RangeTSR 1WI Series
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Power Supply Applications-
                                                                                                  No. of Outputs1 Output
                                                                                                  Output Power Max9W
                                                                                                  Output Voltage Nom9V
                                                                                                  Output Current Max1A
                                                                                                  Product RangeTSR 1WI Series
                                                                                                  DC / DC Converter MountingThrough Hole
                                                                                                  Input Voltage DC Min14V
                                                                                                  Input Voltage DC Max72V
                                                                                                  SVHCNo SVHC (25-Jun-2025)

                                                                                                  Product Overview

                                                                                                  TSR 1WI is a non-isolated POL converter series with an ultra wide 8:1 input voltage range which comes in a standard SIP-3 package. Covering the majority of standard bus- and battery voltages this POL converter is a versatile solution for many applications in distributed power systems where different input voltages have to be handled. Being able to use the same converter in many different situations effectively reduces the bill of material (BOM) of a given application. A high efficiency allows for an operating temperature range of -40 to +80°C (up to 50°C without derating) and makes them excellent drop-in replacements for less efficient LMxx linear regulators. With 1A maximum output current and standard features such as low standby current, precise regulation and protection against short circuit, overvoltage and overload the TSR 1WI is suitable for many battery and distributed power applications.

                                                                                                  • Covers a majority of standard bus and battery voltages
                                                                                                  • Pin compatible with LMxx linear regulators (SIP-3)
                                                                                                  • Up to 90% (at 24V Vin) efficiency, no heatsink required
                                                                                                  • Operating temperature range from -40 to +80°C
                                                                                                  • Low standby current
                                                                                                  • Excellent line/load regulation
                                                                                                  • 3-year product warranty
                                                                                                  • Switching frequency of 225KHz to 375KHz
                                                                                                  • Metal housing, epoxy (UL 94 V-0 rated) potting material

                                                                                                  Warnings

                                                                                                  Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

                                                                                                  Technical Specifications

                                                                                                  Power Supply Applications

                                                                                                  -

                                                                                                  Output Power Max

                                                                                                  9W

                                                                                                  Output Current Max

                                                                                                  1A

                                                                                                  DC / DC Converter Mounting

                                                                                                  Through Hole

                                                                                                  Input Voltage DC Max

                                                                                                  72V

                                                                                                  No. of Outputs

                                                                                                  1 Output

                                                                                                  Output Voltage Nom

                                                                                                  9V

                                                                                                  Product Range

                                                                                                  TSR 1WI Series

                                                                                                  Input Voltage DC Min

                                                                                                  14V

                                                                                                  SVHC

                                                                                                  No SVHC (25-Jun-2025)

                                                                                                  Technical Docs (1)

                                                                                                  Technical Data Sheet EN

                                                                                                  Legislation and Environmental

                                                                                                  Country of Origin:
                                                                                                  Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                  Taiwan
                                                                                                  Country in which last significant manufacturing process was carried out
                                                                                                  Tariff No:85044095
                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:NLR
                                                                                                  RoHS Compliant:Yes

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (25-Jun-2025)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

                                                                                                  Weight (kg):.003
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