Taiwan Semiconductor Corporation HER106G A0G

Overview

HER106G A0G from Taiwan Semiconductor is a high-efficiency, glass-passivated silicon rectifier diode rated for 1 A average forward current and 600 V repetitive peak reverse voltage (V_RRM), with low forward voltage (1.7 V @ 1 A, 25°C) and fast reverse recovery time (75 ns). It is used in DC-DC converters, switching-mode power supplies, and freewheeling paths where reliability under surge and thermal stress is critical.

For engineers reviewing the HER106G A0G datasheet, HER106G A0G pinout, HER106G A0G application, or HER106G A0G equivalent, key selection factors include its DO-41 package compatibility, 30 A non-repetitive surge rating, 150°C max junction temperature, and AEC-Q101 qualification availability in related variants - all essential for automotive-grade power conversion design.

Technical Context

This device operates as a single-die, unidirectional, standard recovery rectifier optimized for high-frequency switching applications. Its 75 ns reverse recovery time and 10 pF junction capacitance at 1 MHz/4 V support efficient operation in SMPS topologies up to several hundred kHz.

The HER106G A0G features a glass-passivated PN junction, pure tin-plated leads compliant with J-STD-002, and UL 94V-0 molding compound. Thermal resistance is 60°C/W (junction-to-ambient) and 15°C/W (junction-to-case), enabling reliable conduction at full rated current with minimal heatsinking.

Key Specifications

Pinout & Package

HER106G A0G is housed in a DO-204AL (DO-41) axial-leaded package with cathode indicated by a band. Leads are pure tin-plated and solderable per J-STD-002. Polarity is unambiguous; no internal connections beyond anode and cathode terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1R06 and ES1J, the HER106G A0G delivers optimal balance of DO-41 compatibility, 600 V blocking, and 75 ns recovery for mid-frequency (100–300 kHz) power conversion - making it ideal for space-constrained industrial and automotive auxiliary supplies where leaded reliability matters.

Availability

HER106G A0G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and automotive auxiliary power supplies requiring stable component supply, consistent DO-41 form factor, and verified thermal performance across extended temperature ranges.

Supply support for HER106G A0G 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 bipolar transistors for industrial and automotive markets.

The HER101G–HER108G family was designed specifically for high-reliability, high-efficiency AC/DC and DC/DC power conversion - emphasizing low V_F, fast recovery, and robust packaging for demanding thermal and surge environments.

FAQ

What is the maximum junction temperature rating for HER106G A0G?

The HER106G A0G has a maximum junction temperature (T_J(max)) of +150°C, as specified in its absolute maximum ratings table. This rating enables operation in high-ambient environments such as enclosed industrial enclosures or under-hood automotive locations, provided thermal design accounts for its 60°C/W junction-to-ambient thermal resistance. The HER106G A0G must not exceed this limit during continuous or pulsed operation to ensure long-term reliability.

Is HER106G A0G RoHS and halogen-free compliant?

Yes, the HER106G A0G is RoHS compliant and halogen-free in accordance with IEC 61249-2-21. Its molding compound contains no brominated flame retardants or chlorine-based additives, and its pure tin-plated leads meet J-STD-002 solderability standards. This compliance is confirmed in the official Taiwan Semiconductor datasheet revision L2104 and applies to the HER106G A0G variant as shipped in ammo box packaging.

What does the "A0G" suffix mean in HER106G A0G?

The "A0G" suffix in HER106G A0G indicates the packaging format: DO-204AL (DO-41) in 3,000-piece ammo box packaging. Per Taiwan Semiconductor's ordering information, "A0G" distinguishes it from tape-and-reel versions (e.g., HER106G) and AEC-Q101-qualified variants (e.g., HER106GH). The "G" denotes green (halogen-free) compound; "A0" specifies the ammo box configuration. No functional or electrical differences exist between HER106G and HER106G A0G.

Does HER106G A0G have AEC-Q101 qualification?

No, the HER106G A0G variant is not AEC-Q101 qualified. However, Taiwan Semiconductor offers the HER106GH variant - identical electrically and mechanically but fully qualified to AEC-Q101 for automotive applications. The "H" suffix explicitly denotes AEC-Q101 compliance. Engineers requiring automotive-grade validation must specify HER106GH; the HER106G A0G remains suitable for industrial and commercial power systems where qualification is not mandated.

What is the reverse recovery time (t_rr) of HER106G A0G, and how is it measured?

The HER106G A0G has a typical reverse recovery time (t_rr) of 75 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per the manufacturer's electrical specifications table. This value reflects the time required for minority carriers to clear after forward conduction ceases, directly impacting switching loss and EMI in high-frequency converters. The HER106G A0G's 75 ns t_rr is confirmed across the HER106G–HER108G subgroup and validated using standardized test circuitry shown in Figure 6 of the datasheet.