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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Taiwan Semiconductor Corporation HER1005G

Name: HER1005G
Brand: Taiwan Semiconductor Corporation
SKU: HER1005G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HER1005G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-220-3

Datasheet:: HER1005G.pdf

Description:: DIODE ARRAY GP 400V 10A TO-220AB

Quantity:: RFQ Add To RFQ list

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Inventory:5,058

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Product details

Overview

HER1005G from Taiwan Semiconductor is a high-efficiency, 10 A, 400 V repetitive peak reverse voltage (V_RRM) ultra-fast recovery rectifier diode in TO-220AB package, with 1.3 V forward voltage at 5 A and 50 ns reverse recovery time - used in DC/DC converters and freewheeling paths where low conduction loss and fast switching are critical.

For engineers reviewing the HER1005G datasheet, HER1005G pinout, HER1005G application, or HER1005G equivalent, key selection criteria include its 400 V V_RRM, 50 ns trr, 1.3 V V_F @ 5 A, 125 A I_FSM, and TO-220AB thermal performance (R_θJC = 1.5 °C/W) for industrial power conversion designs.

Technical Context

This device is a single-die, unidirectional ultra-fast recovery rectifier optimized for high-frequency switching applications. It features a junction capacitance of 60 pF at 1 MHz and 4.0 V reverse bias, enabling stable operation in SMPS output stages up to several hundred kHz.

The HER1005G operates across –55 °C to +150 °C junction temperature range and supports surge currents up to 125 A (8.3 ms half-sine), making it suitable for transient-heavy environments such as motor drive freewheeling and inverter snubber circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum non-repetitive reverse voltage the diode blocks reliably in circuit
I_F	10 A - continuous average forward current rating at case temperature ≤ 75 °C
I_FSM	125 A - peak non-repetitive surge current capability (8.3 ms half-sine)
V_F @ 5 A	1.3 V - forward voltage drop determining conduction loss in high-current paths
t_rr	50 ns - reverse recovery time defining minimum switching frequency limit and EMI generation
C_J @ 1 MHz, 4.0 V	60 pF - junction capacitance affecting high-frequency impedance and snubber design
R_θJC	1.5 °C/W - thermal resistance from junction to case, critical for heatsink sizing

Pinout & Package

Package: TO-220AB - insulated case, 3-terminal through-hole package with metal tab (cathode-connected) for direct heatsink mounting and mechanical stability in high-power applications.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of load or switch node; must withstand full I_F and I_FSM
Cathode	Forward current exit / reverse blocking terminal	Internally bonded to metal tab; electrically common with heatsink mount surface
Tab (Case)	Thermal path & cathode connection	Provides primary heat dissipation path; requires electrical isolation if heatsink is grounded

Key Features

Feature	Design Value
Ultra-fast recovery (t_rr = 50 ns)	Enables efficient operation in 100–500 kHz SMPS without excessive switching loss or ringing
Low forward voltage (V_F = 1.3 V @ 5 A)	Reduces conduction loss by ~15% vs. standard FRDs with comparable V_RRM
High surge rating (I_FSM = 125 A)	Withstands repeated inrush and fault currents in motor control and UPS output stages
TO-220AB thermal performance (R_θJC = 1.5 °C/W)	Supports >8 W continuous power dissipation with modest heatsinking

Applications

DC/DC Converters	Switching Inverters
Use Scenario: Secondary-side rectification in isolated flyback or forward converters operating at 100–300 kHz. IC Role / Device Role / Timing Role: Ultra-fast recovery rectifier handling high-frequency AC-to-DC conversion with minimal reverse recovery loss. Use Value: 50 ns t_rr and 60 pF C_J reduce switching node oscillation and EMI, improving efficiency over standard FRDs.	Use Scenario: Freewheeling path in H-bridge inverters driving inductive loads like BLDC motors. IC Role / Device Role / Timing Role: Bidirectional energy recirculation path during PWM dead-time, requiring fast turn-off to prevent shoot-through. Use Value: 125 A I_FSM and 400 V V_RRM support robust operation under motor back-EMF transients and regenerative spikes.
Industrial Power Supplies	UPS Output Stages
Use Scenario: Output rectification in 1–3 kW industrial AC/DC front-ends with PFC + LLC topology. IC Role / Device Role / Timing Role: High-current, high-reliability output diode managing continuous 10 A load with thermal margin. Use Value: TO-220AB package with R_θJC = 1.5 °C/W enables stable 150 °C junction operation using standard extruded heatsinks.	Use Scenario: Battery-charging and inverter-output rectification in line-interactive UPS systems. IC Role / Device Role / Timing Role: Dual-role diode handling both battery charging current and inverter output rectification during transfer mode. Use Value: 10 A I_F rating and –55 °C to +150 °C T_J range ensure reliability across wide ambient and load-cycle conditions.

DC/DC Converters

Switching Inverters

Use Scenario: Secondary-side rectification in isolated flyback or forward converters operating at 100–300 kHz.

IC Role / Device Role / Timing Role: Ultra-fast recovery rectifier handling high-frequency AC-to-DC conversion with minimal reverse recovery loss.

Use Value: 50 ns t_rr and 60 pF C_J reduce switching node oscillation and EMI, improving efficiency over standard FRDs.

Use Scenario: Freewheeling path in H-bridge inverters driving inductive loads like BLDC motors.

IC Role / Device Role / Timing Role: Bidirectional energy recirculation path during PWM dead-time, requiring fast turn-off to prevent shoot-through.

Use Value: 125 A I_FSM and 400 V V_RRM support robust operation under motor back-EMF transients and regenerative spikes.

Industrial Power Supplies

UPS Output Stages

Use Scenario: Output rectification in 1–3 kW industrial AC/DC front-ends with PFC + LLC topology.

IC Role / Device Role / Timing Role: High-current, high-reliability output diode managing continuous 10 A load with thermal margin.

Use Value: TO-220AB package with R_θJC = 1.5 °C/W enables stable 150 °C junction operation using standard extruded heatsinks.

Use Scenario: Battery-charging and inverter-output rectification in line-interactive UPS systems.

IC Role / Device Role / Timing Role: Dual-role diode handling both battery charging current and inverter output rectification during transfer mode.

Use Value: 10 A I_F rating and –55 °C to +150 °C T_J range ensure reliability across wide ambient and load-cycle conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH10R04DJF	400 V V_RRM, 10 A I_F, 45 ns t_rr, TO-220AC package (isolated tab)	Lower t_rr but higher V_F (1.45 V), no AEC-Q101 option	Preferred where faster recovery outweighs slightly higher conduction loss and isolation is required
VS-10EWH04-M3	400 V V_RRM, 10 A I_F, 55 ns t_rr, TO-220AC, halogen-free	Slightly slower recovery, same V_F (1.3 V), tighter IR spec (≤5 µA @ 25 °C)	Better for low-leakage requirements in standby-sensitive systems; identical thermal footprint

Compared with STTH10R04DJF and VS-10EWH04-M3, the HER1005G offers balanced t_rr/V_F trade-off, AEC-Q101 qualification option (HER1005GH), and proven thermal robustness in TO-220AB - making it optimal for cost-sensitive industrial power designs requiring field-proven reliability.

Availability

HER1005G is available at Aetrix Electronics and suitable for DC/DC converters, switching inverters, and industrial power supplies requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for HER1005G 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 discrete manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and automotive markets since 1979.

The HER100xG series is designed specifically for high-frequency, high-reliability power conversion - targeting applications demanding low-loss, fast-recovery rectification with extended thermal and surge margins.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for HER1005G?

The HER1005G has a V_RRM of 400 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2104). This rating defines the highest reverse voltage the diode can block repeatedly without breakdown under normal operating conditions, and is strictly tied to the "HER1005G" marking code in the product family matrix.

Does HER1005G have AEC-Q101 qualification?

The base HER1005G is not AEC-Q101 qualified; however, the variant HER1005GH - with identical electrical specs and TO-220AB packaging - is explicitly listed as AEC-Q101 qualified in the Ordering Information section. The "H" suffix denotes qualification, and this distinction is maintained per ordering code in Taiwan Semiconductor's documentation.

What is the junction-to-case thermal resistance (R_θJC) of HER1005G?

The HER1005G has a typical R_θJC of 1.5 °C/W, as specified in the Thermal Performance table of the official datasheet. This value applies to the TO-220AB package and is measured under standard JEDEC test conditions, directly supporting thermal design for heatsink selection in continuous 10 A operation.

What is the reverse recovery time (t_rr) of HER1005G and under what test conditions?

The HER1005G has a maximum t_rr of 50 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Electrical Specifications table. This condition reflects real-world switching behavior in hard-commutated topologies and is distinct from slower variants (e.g., HER1006G–HER1008G, rated at 80 ns).

Is HER1005G supplied in tape-and-reel or tube packaging?

The HER1005G is supplied in 50-piece tubes, as stated in the Ordering Information section. The standard ordering code "HER1005G" maps to TO-220AB package in tube format; tape-and-reel is not listed for this part number in the official documentation.

HER1005G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

Diode Configuration:: 1 Pair Common Cathode

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io) (per Diode):: 10A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 5 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 400 V

Operating Temperature - Junction:: -55°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

HER1005G FAQ

1.How can I place an order for HER1005G through Aetrix?

Please submit a Request for Quotation (RFQ) for HER1005G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for HER1005G reliable?

The price and inventory of HER1005G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER1005G is usually 5 days.

3.What payment methods are accepted for HER1005G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER1005G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HER1005G?

HER1005G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HER1005G order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for HER1005G?

For technical support, including HER1005G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER1005G requirements.

6.How does Aetrix verify that HER1005G is sourced from the original manufacturer or authorized distributors?

All HER1005G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HER1005G meets industry standards.

7.What is the process for return or replacement of HER1005G?

All HER1005G units undergo pre-shipment inspection (PSI). If there is an issue with HER1005G, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The HER1005G part is unused and in its original packaging.

Return procedure for HER1005G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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