Taiwan Semiconductor Corporation MUR4L60

Overview

MUR4L60 from Taiwan Semiconductor is an ultra-fast recovery rectifier diode rated for 600 V repetitive peak reverse voltage, 4 A average forward current, and 50 ns reverse recovery time, with glass passivated junction and DO-201AD package; it serves as a freewheeling or output rectifier in high-frequency switching power supplies.

For engineers reviewing the MUR4L60 datasheet, MUR4L60 pinout, MUR4L60 application, or MUR4L60 equivalent, key selection criteria include its 600 V V_RRM, 50 ns t_rr, 1.28 V forward voltage at 4 A/25°C, thermal resistance of 15 °C/W (junction-to-lead), and AEC-Q101 qualification availability in H-suffix variants.

Technical Context

The MUR4L60 operates as a single-die, unidirectional silicon rectifier optimized for high-efficiency DC–DC conversion and SMPS output stages. Its ultra-fast recovery (50 ns) minimizes switching losses during turn-off, while the glass-passivated junction ensures stable performance across -55°C to +175°C junction temperature range.

Thermal design is supported by R_θJL = 15 °C/W and R_θJA = 36 °C/W, enabling reliable conduction at 4 A continuous with appropriate heatsinking or PCB copper area. The DO-201AD package uses pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.

Key Specifications

Pinout & Package

Package: DO-201AD axial-leaded plastic case with cathode band marking; 1.20 g mass; UL 94V-0 molding compound; lead finish: pure tin, J-STD-002 compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-fast rectifier applications.

Compared with STTH4L06D and MUR460E, the MUR4L60 offers identical speed and forward drop to MUR460E but adds AEC-Q101 availability, while outperforming STTH4L06D in both recovery time and conduction loss-critical for thermally constrained, high-frequency power stages.

Availability

MUR4L60 is available at Aetrix Electronics and suitable for DC–DC converter output rectification, switch-mode inverter freewheeling, and industrial SMPS input bridge applications requiring stable component supply, long-lifecycle support, and RoHS/halogen-free compliance.

Supply support for MUR4L60 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 rectifiers, TVS diodes, MOSFETs, and power ICs since 1979.

The MUR4L60 belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in industrial, computing, and automotive systems where fast recovery and thermal robustness are critical.

FAQ

What is the maximum junction temperature rating for the MUR4L60?

The MUR4L60 has a maximum junction temperature (T_JMAX) of +175°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This allows operation in high-ambient environments such as enclosed industrial power supplies or under-hood automotive locations when paired with adequate thermal management. The MUR4L60 maintains specified electrical performance up to this limit, and its glass passivated junction ensures stability across the full -55°C to +175°C range.

Is the MUR4L60 pin-compatible with other DO-201AD ultra-fast rectifiers?

Yes, the MUR4L60 uses the industry-standard DO-201AD axial package with anode/cathode polarity marked by a cathode band, making it mechanically and electrically pin-compatible with all DO-201AD rectifiers including MUR420–MUR460 variants and equivalents like STTH4L06D or MUR460E. No PCB layout change is needed for substitution within the same voltage/current class, provided thermal and electrical margins are validated.

Does the MUR4L60 have AEC-Q101 qualification?

The base MUR4L60 is not AEC-Q101 qualified, but Taiwan Semiconductor offers the MUR4L60H variant-identical electrically and mechanically-which is fully AEC-Q101 qualified for automotive applications. The "H" suffix denotes qualification per stress test requirements including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. Always specify MUR4L60H when automotive-grade reliability is required.

What is the typical forward voltage drop of the MUR4L60 at rated current?

The MUR4L60 exhibits a typical forward voltage (V_F) of 1.28 V at 4 A forward current and 25°C junction temperature, as confirmed in the Electrical Specifications table of the Taiwan Semiconductor datasheet. At elevated temperatures (e.g., 125°C), V_F decreases slightly due to semiconductor physics, remaining within 1.15–1.25 V range-enabling predictable conduction loss modeling in thermal simulations for the MUR4L60.

How does the reverse recovery time of the MUR4L60 compare to standard fast rectifiers?

The MUR4L60 has a reverse recovery time (t_rr) of 50 ns under standard test conditions (I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A), placing it in the ultra-fast category. This is approximately 2–3× faster than standard fast rectifiers (e.g., 100–200 ns), directly reducing switching losses and EMI generation in high-frequency SMPS using the MUR4L60-especially above 100 kHz.