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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation HER152G-T

Name: HER152G-T
Brand: Taiwan Semiconductor Corporation
SKU: HER152G-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HER152G-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: HER152G-T.pdf

Description:: 50NS, 1.5A, 100V, HIGH EFFICIENT

Quantity:: RFQ Add To RFQ list

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Inventory:2,030

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Product details

Overview

HER152G-T from Taiwan Semiconductor is a high-efficiency, single-die silicon rectifier diode in DO-204AC (DO-15) package, rated for 100 V repetitive peak reverse voltage (V_RRM), 1.5 A average forward current (I_F), and 50 A non-repetitive surge current (I_FSM). It delivers low forward voltage drop (1.0 V at 1.5 A, 25°C) and fast reverse recovery time (50 ns), making it suitable for switching-mode power supplies and freewheeling paths in DC-DC converters.

For engineers reviewing the HER152G-T datasheet, HER152G-T pinout, HER152G-T application, or HER152G-T equivalent, key selection criteria include its 100 V V_RRM, 1.0 V V_F at rated current, 50 ns t_rr, DO-15 mechanical compatibility, and RoHS/halogen-free compliance for industrial and consumer power conversion designs.

Technical Context

This device is a unidirectional, planar passivated PN-junction rectifier optimized for high-frequency switching applications. Its glass-passivated chip junction ensures stable performance under thermal cycling, while the 60 °C/W junction-to-ambient thermal resistance supports reliable operation up to 150 °C junction temperature.

The HER152G-T exhibits low junction capacitance (35 pF at 1 MHz, 4 V), enabling minimal switching loss in high-speed topologies. Its reverse leakage remains tightly controlled-5 µA at 25°C and 150 µA at 125°C-supporting stable blocking behavior across operating temperature ranges.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse voltage the diode blocks without breakdown
I_F	1.5 A - Continuous average forward current rating at 75°C ambient with adequate heatsinking
V_F	1.0 V @ 1.5 A, 25°C - Low conduction loss enabling higher efficiency in power stages
t_rr	50 ns - Fast recovery reduces switching losses and EMI in SMPS operating above 50 kHz
I_FSM	50 A - Withstands short-duration inrush/surge currents during startup or fault conditions
R_θJA	60 °C/W - Thermal resistance defines temperature rise per watt dissipated in standard PCB mounting
Junction temp	−55°C to +150°C - Operating range compatible with industrial and automotive under-hood environments

Pinout & Package

HER152G-T uses the DO-204AC (DO-15) axial-leaded package with cathode indicated by a band on the body. Leads are pure tin-plated and solderable per J-STD-002. Weight ≈ 0.400 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unbanded end)	Forward current entry point	Connects to lower-potential side of circuit (e.g., switch node in buck freewheel path)
Cathode (banded end)	Forward current exit / reverse blocking terminal	Connects to higher-potential rail; polarity marking prevents incorrect installation

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives
Low V_F (1.0 V)	Reduces conduction loss by ~15–20% compared to standard 1N400x series at same I_F
Fast t_rr (50 ns)	Enables use in 100–500 kHz SMPS without significant switching loss penalty
RoHS & halogen-free	Meets IEC 61249-2-21 and global environmental compliance requirements for end-product certification
DO-15 mechanical standardization	Ensures drop-in replacement capability with legacy through-hole rectifiers in existing layouts

Applications

DC-DC Converter Output Rectification	Switching Mode Inverter Freewheeling
Use Scenario: Used as secondary-side rectifier in isolated flyback or forward converters delivering 5–24 V output at ≤1.5 A. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 1.0 V V_F minimizes conduction loss; 50 ns t_rr suppresses voltage spikes during MOSFET turn-on, reducing snubber burden.	Use Scenario: Placed across inductive loads (e.g., relay coils, motor windings) in half-bridge inverters to clamp back-EMF. IC Role / Device Role / Timing Role: Freewheeling diode providing low-impedance path for inductor current decay when switching devices turn off. Use Value: 50 A I_FSM handles transient energy safely; 100 V V_RRM covers typical 24–48 V bus systems with margin.
Buck Regulator Synchronous Replacement	AC-DC Adapter Input Bridge Leg
Use Scenario: Replaces synchronous MOSFET in low-cost buck regulators where gate drive complexity must be avoided. IC Role / Device Role / Timing Role: Passive rectifier conducting only during low-side switch conduction phase. Use Value: Eliminates need for timing-critical gate control; DO-15 footprint simplifies layout versus SMD alternatives.	Use Scenario: One leg of a discrete full-wave bridge rectifier in universal-input (90–264 VAC) offline adapters. IC Role / Device Role / Timing Role: Half-wave rectifying element handling 50/60 Hz line frequency with high surge tolerance. Use Value: 50 A I_FSM withstands cold-start inrush; 100 V V_RRM provides sufficient margin over 1.414 × 70 V peak after PFC stage.

DC-DC Converter Output Rectification

Switching Mode Inverter Freewheeling

Use Scenario: Used as secondary-side rectifier in isolated flyback or forward converters delivering 5–24 V output at ≤1.5 A.

IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output.

Use Value: 1.0 V V_F minimizes conduction loss; 50 ns t_rr suppresses voltage spikes during MOSFET turn-on, reducing snubber burden.

Use Scenario: Placed across inductive loads (e.g., relay coils, motor windings) in half-bridge inverters to clamp back-EMF.

IC Role / Device Role / Timing Role: Freewheeling diode providing low-impedance path for inductor current decay when switching devices turn off.

Use Value: 50 A I_FSM handles transient energy safely; 100 V V_RRM covers typical 24–48 V bus systems with margin.

Buck Regulator Synchronous Replacement

AC-DC Adapter Input Bridge Leg

Use Scenario: Replaces synchronous MOSFET in low-cost buck regulators where gate drive complexity must be avoided.

IC Role / Device Role / Timing Role: Passive rectifier conducting only during low-side switch conduction phase.

Use Value: Eliminates need for timing-critical gate control; DO-15 footprint simplifies layout versus SMD alternatives.

Use Scenario: One leg of a discrete full-wave bridge rectifier in universal-input (90–264 VAC) offline adapters.

IC Role / Device Role / Timing Role: Half-wave rectifying element handling 50/60 Hz line frequency with high surge tolerance.

Use Value: 50 A I_FSM withstands cold-start inrush; 100 V V_RRM provides sufficient margin over 1.414 × 70 V peak after PFC stage.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1L06U	600 V V_RRM, 1.0 A I_F, 65 ns t_rr, TO-220AC package	Higher voltage rating but lower current; requires heatsink for >0.5 A continuous	Choose for 400–600 V systems needing higher blocking; avoid if space-constrained or <1 A load
ES1J	600 V V_RRM, 1.0 A I_F, 35 ns t_rr, DO-214AA (SMA) package	Faster recovery but lower current rating and surface-mount only	Prefer for high-frequency, low-current SMT designs; not mechanically or thermally interchangeable with HER152G-T

Compared with STTH1L06U and ES1J, the HER152G-T uniquely balances 100 V blocking, 1.5 A current, 50 ns speed, and through-hole DO-15 packaging-making it optimal for cost-sensitive, medium-power, leaded-board power supplies where thermal mass and manual assembly matter.

Availability

HER152G-T is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and freewheeling applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for HER152G-T 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.

The HER15xG-T series was designed specifically for high-efficiency, medium-current AC/DC and DC/DC power conversion-emphasizing low V_F, fast t_rr, and robust surge capability in standardized through-hole packages.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for HER152G-T?

The HER152G-T has a V_RRM rating of 100 V, meaning it reliably blocks up to 100 V of reverse voltage in repetitive operation. This value is fixed per the device's marking code "HER152G-T", where "152" denotes the 100 V grade within the HER151G-T to HER156G-T family. Exceeding this voltage risks avalanche breakdown and permanent damage to the HER152G-T.

Is HER152G-T RoHS and halogen-free compliant?

Yes, the HER152G-T is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and its pure tin-plated leads satisfy J-STD-002 solderability requirements. These specifications are confirmed in Taiwan Semiconductor's official datasheet revision B2105 and apply directly to the HER152G-T variant.

What is the forward voltage (V_F) of HER152G-T at full rated current?

The HER152G-T exhibits a typical forward voltage of 1.0 V at 1.5 A and 25°C junction temperature, as specified in the Electrical Specifications table. This value increases with temperature and current-e.g., ~1.15 V at 100°C-and is measured under pulsed conditions (0.3 ms pulse width) to minimize self-heating effects during test.

Can HER152G-T replace a 1N4002 in a design?

HER152G-T can replace 1N4002 in many cases due to matching DO-15 package, 1.5 A I_F, and 100 V V_RRM, but offers superior performance: lower V_F (1.0 V vs. ~1.1 V), faster t_rr (50 ns vs. >2 µs), and higher I_FSM (50 A vs. 30 A). However, verify thermal design-its lower V_F reduces power loss, but layout must still accommodate its 60 °C/W R_θJA.

What is the reverse recovery time (t_rr) of HER152G-T and how is it measured?

The HER152G-T has a maximum reverse recovery time of 50 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per the datasheet's Electrical Specifications table. This parameter reflects the time required for minority carriers to clear after forward conduction ceases-critical for minimizing switching loss and ringing in high-frequency power circuits using the HER152G-T.

HER152G-T Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AC, DO-15, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 1.5A

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 1.5 A

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 100 V

Capacitance @ Vr, F:: 35pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

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

HER152G-T FAQ

1.How can I place an order for HER152G-T through Aetrix?

Please submit a Request for Quotation (RFQ) for HER152G-T 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 HER152G-T reliable?

The price and inventory of HER152G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER152G-T is usually 5 days.

3.What payment methods are accepted for HER152G-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER152G-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HER152G-T?

HER152G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HER152G-T 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 HER152G-T?

For technical support, including HER152G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER152G-T requirements.

6.How does Aetrix verify that HER152G-T is sourced from the original manufacturer or authorized distributors?

All HER152G-T 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 HER152G-T meets industry standards.

7.What is the process for return or replacement of HER152G-T?

All HER152G-T units undergo pre-shipment inspection (PSI). If there is an issue with HER152G-T, 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 HER152G-T part is unused and in its original packaging.

Return procedure for HER152G-T:

1.Submit a request within 90 days.

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

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