Taiwan Semiconductor Corporation HER1601G

Overview

HER1601G from Taiwan Semiconductor is a 16A, 50V high-efficiency ultrafast recovery rectifier in TO-220AB package with dual-die configuration, 1.0V typical forward voltage at 8A/25°C, 50ns reverse recovery time, and 1.5°C/W junction-to-case thermal resistance - used in DC-DC converters and switching-mode power supplies.

For engineers reviewing the HER1601G datasheet, HER1601G pinout, HER1601G application, or HER1601G equivalent, key selection criteria include its 50V VRRM rating, 125A IFSM surge capability, AEC-Q101 qualification option (HER1601GH), low VF performance, and TO-220AB mechanical compatibility with standard heatsink mounting.

Technical Context

The HER1601G integrates two independent ultrafast recovery diode dies in a single TO-220AB package, enabling dual-channel freewheeling or bridge configurations. Its 50ns trr and 1.0V VF at 8A support high-frequency switching up to several hundred kHz in SMPS topologies.

Thermally optimized with 1.5°C/W RθJC and rated for TJ = –55°C to +150°C, it sustains continuous 16A conduction while maintaining low power loss under transient surge conditions up to 125A (8.3ms half-sine).

Key Specifications

Pinout & Package

HER1601G uses the industry-standard TO-220AB package with three leads: Anode 1, Cathode (common), Anode 2 - configured as dual independent anode terminals sharing one cathode, suitable for center-tapped transformer rectification or dual-output freewheeling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1605D and VS-16EWH05-M3, HER1601G uniquely combines dual-anode/common-cathode topology, 1.5°C/W thermal resistance, and AEC-Q101 qualification path in TO-220AB - optimizing space, thermal performance, and automotive compliance simultaneously.

Availability

HER1601G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for HER1601G 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and automotive markets since 1979.

The HER1601G belongs to TSC's high-efficiency rectifier product line, engineered specifically for high-frequency, high-reliability power conversion systems demanding low VF, fast trr, and robust surge tolerance.

FAQ

What is the maximum junction temperature rating for HER1601G?

The HER1601G has a maximum junction temperature (TJ MAX) of +150°C, with operational range from –55°C to +150°C. This rating enables reliable operation in high-ambient environments such as enclosed power supplies and automotive under-hood locations when paired with appropriate heatsinking per its 1.5°C/W RθJC specification. HER1601G maintains full electrical performance within this range.

Does HER1601G have AEC-Q101 qualification?

The HER1601G itself is not AEC-Q101 qualified; however, the HER1601GH variant - identical in all electrical and thermal specifications - is fully AEC-Q101 qualified for automotive applications. The "H" suffix denotes qualification per stress test requirements including temperature cycling, humidity bias, and high-temperature operating life. HER1601G serves industrial and commercial designs; HER1601GH is specified for automotive-grade reliability.

What is the reverse recovery time (trr) of HER1601G and how is it measured?

The HER1601G has a reverse recovery time (trr) of 50 ns maximum, tested under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions per JEDEC standards. This value reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss and EMI in high-frequency converters. HER1601G's 50 ns trr is confirmed across its full operating temperature range and supports clean turn-off in SMPS designs up to 500 kHz.

Can HER1601G be used in parallel configurations?

HER1601G is not recommended for direct parallel connection due to inherent forward voltage mismatch between units, which can cause current imbalance and thermal runaway. For higher current requirements, use multiple HER1601G devices in separate branches with individual current-sharing resistors or select higher-rated alternatives. The dual-die structure inside HER1601G is internally optimized for balanced conduction - external paralleling bypasses this design intent and voids thermal derating guarantees.

What is the marking code and polarity identification for HER1601G?

HER1601G is marked "HER1601G" on the device body, with polarity indicated by a cathode band adjacent to Lead 2 (center pin). Lead 1 (left) and Lead 3 (right) are anodes; Lead 2 is the common cathode. The "G" suffix denotes RoHS-compliant, halogen-free molding compound per IEC 61249-2-21. Mounting orientation follows standard TO-220AB pinout diagrams in TSC's J2104 datasheet revision.