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Ⅰ.Overview of product

SRP1265A-1R0M is a surface‑mount fixed power inductor by Bourns,designed for high-current, high-reliability power circuits.It features a shielded drum core,carbonyl powder construction,and wide operating temperature range,suitable for automotive and industrial high-power DC-DC applications.

Ⅱ.Core parameter

Category:Inductors, Coils, Chokes,Fixed Inductors

Mfr:Bourns Inc.

Series:SRP1265A

Packaging:Tape & Reel

Part Status:Active

Type:Drum Core, Wirewound

Material - Core:Carbonyl Powder

Inductance:1 µH

Tolerance:±20%

Current Rating (Amps):30 A

Current - Saturation (Isat):48A

DC Resistance (DCR):2.3mOhm Max

Frequency - Self Resonant:45MHz

Operating Temperature:-55°C ~ 150°C

Inductance Frequency - Test:100 kHz

Mounting Type:Surface Mount

Size / Dimension:0.531" L x 0.492" W (13.50mm x 12.50mm)

Height - Seated (Max):0.252" (6.40mm)

Ⅲ.Main characteristics

High Saturation:Delivers 48 A saturation current to maintain stable inductance under heavy load and transient conditions.

Low DCR:Features maximum 2.3 mΩ DC resistance, reducing power loss and improving conversion efficiency.

Shielded Structure:Shielded drum core design lowers electromagnetic radiation and minimizes interference in dense layouts.

High RMS Current:Supports 30 A rated current, ideal for high‑power DC‑DC converters and power management circuits.

Carbonyl Core:Uses carbonyl powder core for stable permeability, low noise, and consistent electrical performance.

Ⅳ.Application field

Automotive DC-DC:On-board power converters for infotainment, ADAS, and lighting systems.

Server Power:High-current POL converters in server and data-center power supplies.

Industrial Driver:Motor drivers and industrial frequency converters requiring stable high‑current filtering.

Battery System:Power management and charging circuits in EV and energy-storage systems.

Consumer Power:High-performance laptop, game console, and fast-charging power modules.

Telecom Equipment:Base-station and communication power supplies with high efficiency and low noise.

Ⅴ.Summary

SRP1265A-1R0M is a high-performance shielded power inductor with high saturation, low DCR, and wide temperature tolerance.It meets automotive-grade reliability and suits high-current,high-efficiency power designs in automotive,industrial,server,and telecom applications.