Taiwan Semiconductor Corporation MUR260H

Overview

MUR260H from Taiwan Semiconductor is an AEC-Q101-qualified, high-efficiency ultrafast recovery rectifier diode in DO-204AC (DO-15) package, rated for 2 A average forward current, 600 V repetitive peak reverse voltage, and 50 ns reverse recovery time, used in automotive-grade DC-DC converters and switching inverters.

For engineers reviewing the MUR260H datasheet, MUR260H pinout, MUR260H application, or MUR260H equivalent, key selection criteria include its 175°C junction temperature rating, glass-passivated junction, 1.09 V typical forward voltage at 2 A/25°C, and compliance with JESD201 Class 2 whisker resistance and RoHS/halogen-free standards.

Technical Context

The MUR260H is a single-die, planar epitaxial ultrafast recovery rectifier optimized for high-frequency switching applications. Its design features a glass-passivated junction to enhance reliability under thermal cycling and humidity stress, and achieves fast reverse recovery (trr ≤ 50 ns) via controlled carrier lifetime reduction.

Thermal performance is characterized by R_θJL = 17°C/W and R_θJA = 62°C/W on a 10 mm × 10 mm copper pad PCB. The device supports surge currents up to 35 A (8.3 ms half-sine) and operates across –55°C to +175°C junction temperature range.

Key Specifications

Pinout & Package

Package: DO-204AC (DO-15), axial-leaded, glass-passivated, cathode indicated by band. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast rectifier applications.

Compared with STTH2R06, MUR260H offers tighter trr control and automotive qualification; versus MUR260E, it shares identical performance but differs in manufacturer branding, date coding, and logistics packaging (A0G ammo box vs tape-and-reel variants).

Availability

MUR260H is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and UPS battery charging circuits requiring stable component supply with AEC-Q101 assurance and long-term lifecycle support.

Supply support for MUR260H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in high-reliability rectifiers, TVS devices, and power MOSFETs.

The MUR260H belongs to TSC's AEC-Q101-qualified ultrafast rectifier product line, engineered specifically for automotive electrification and industrial power conversion where efficiency, thermal robustness, and long-term reliability are critical.

FAQ

What is the maximum junction temperature rating of the MUR260H?

The MUR260H has a maximum junction temperature (T_J) rating of +175°C, verified per AEC-Q101 stress testing. This enables reliable operation in high-ambient environments such as automotive engine compartments or sealed industrial enclosures. The device maintains specified electrical parameters up to this limit, and thermal derating curves confirm usable current capacity even at elevated case temperatures. Always reference the forward current derating curve in the MUR260H datasheet for layout-specific thermal design.

Is the MUR260H pin-compatible with standard DO-204AC rectifiers like 1N4007?

No - while the MUR260H uses the DO-204AC (DO-15) package and shares the same axial lead configuration as 1N4007, it is not functionally or electrically interchangeable. The MUR260H is an ultrafast rectifier (trr ≤ 50 ns) with 600 V V_RRM, whereas 1N4007 is a general-purpose rectifier (trr > 2 µs) rated for only 1000 V PIV but unsuitable for high-frequency switching. Substituting them risks excessive switching loss, overheating, and EMI in SMPS designs. Always verify topology requirements before replacement.

Does the MUR260H require a heatsink in typical 2 A applications?

In most PCB-mounted applications with ≥10 mm × 10 mm copper pour, the MUR260H does not require an external heatsink due to its low R_θJL = 17°C/W and moderate power dissipation (~2.2 W at 2 A/25°C). Thermal simulation or measurement is recommended for ambient temperatures above 60°C or when mounted on minimal copper. The device's 175°C T_J rating provides margin, but sustained operation above 150°C junction temperature should be avoided. Refer to the MUR260H thermal performance curves for exact derating guidance.

What does the "H" suffix in MUR260H signify?

The "H" suffix in MUR260H explicitly denotes AEC-Q101 qualification per the manufacturer's ordering information table. It distinguishes this variant from non-automotive versions (e.g., MUR260) and confirms that the MUR260H has undergone rigorous stress testing-including temperature cycling, high-temperature operating life, and mechanical shock-to meet automotive reliability standards. This qualification applies to the entire lot, not just sample units, and is documented in TSC's certified test reports for the MUR260H.

How does the MUR260H's forward voltage compare at elevated temperature?

The MUR260H exhibits a negative temperature coefficient for forward voltage: at 2 A, V_F drops from 1.09 V (typ) at 25°C to 0.87 V (typ) at 150°C. This behavior reduces conduction loss at high junction temperatures, improving thermal stability in continuous-duty applications. However, reverse leakage current increases significantly-from <5 µA at 25°C to <100 µA at 125°C-so designers must ensure adequate reverse voltage margin in high-temperature environments. These values are measured and guaranteed per the MUR260H electrical specifications table.