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

Taiwan Semiconductor Corporation HS1A M2G

Name: HS1A M2G
Brand: Taiwan Semiconductor Corporation
SKU: HS1A M2G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HS1A M2G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: HS1A M2G.pdf

Description:: DIODE GEN PURP 50V 1A DO214AC

Quantity:: RFQ Add To RFQ list

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Inventory:9,365

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Product details

Overview

HS1A M2G from Taiwan Semiconductor is a 1 A, 50 V repetitive peak reverse voltage (V_RRM) surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring 1.0 V max forward voltage at 1 A, 30 A peak surge current, and 5 µA max reverse leakage at 25°C - used in DC-DC converters and snubber circuits.

For engineers reviewing the HS1A M2G datasheet, HS1A M2G pinout, HS1A M2G application, or HS1A M2G equivalent, key selection criteria include its 50 V V_RRM, 1.0 V V_F @ 1 A, DO-214AC thermal resistance (R_θJL = 15 °C/W), moisture sensitivity level 1 compliance, and RoHS/halogen-free qualification for high-reliability power conversion designs.

Technical Context

This is a single-die, glass-passivated, fast-recovery rectifier optimized for switching-mode power supplies. It delivers low forward voltage drop and fast reverse recovery time (t_rr ≤ 50 ns) to minimize conduction and switching losses in high-frequency operation.

Designed for automated SMT placement, it meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards. Its cathode band polarity marking and matte tin-plated leads ensure reliable solderability per J-STD-002.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - maximum repetitive reverse blocking voltage; defines safe operating range in DC-DC flyback or freewheeling paths
I_F	1 A continuous - rated average forward current; supports compact 1 A power rail rectification without heatsink
V_F @ 1 A	≤ 1.0 V - low conduction loss enabling >92% efficiency in 5–12 V output converters
I_FSM	30 A - handles 8.3 ms half-sine surges; protects against inrush and transient overloads
t_rr	≤ 50 ns - fast recovery minimizes switching losses in 100–500 kHz SMPS topologies
R_θJL	15 °C/W - efficient junction-to-lead heat transfer enables stable operation up to 150 °C junction temperature
MSL	Level 1 (per J-STD-020) - no floor life limitation; suitable for standard reflow without baking

Pinout & Package

DO-214AC (SMA) surface-mount plastic package with molded body, matte tin-plated leads, and cathode band polarity indicator. Weight: 0.060 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of circuit (e.g., switch node in buck converter)
Cathode	Forward current exit / reverse blocking terminal	Marked by band; connects to output rail or energy storage node; blocks 50 V reverse bias

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability under thermal cycling and humidity exposure in industrial environments
Fast switching (t_rr ≤ 50 ns)	Reduces switching loss and EMI generation in high-frequency DC-DC converters
Moisture sensitivity level 1	Eliminates pre-bake requirement; compatible with standard SMT assembly lines
RoHS & halogen-free	Meets global environmental compliance mandates for consumer, telecom, and industrial end equipment
J-STD-002 solderable leads	Ensures robust wetting and joint integrity during lead-free reflow (260°C peak)

Applications

DC-DC Converter	Snubber Circuit
Use Scenario: Output rectification in isolated flyback or non-isolated buck converters delivering 5–24 V at ≤1 A. IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer/inductor into regulated DC output. Use Value: 1.0 V V_F and 50 ns t_rr reduce conduction + switching losses, improving overall converter efficiency by ~2–3% vs. standard rectifiers.	Use Scenario: Voltage spike suppression across MOSFETs or IGBTs in motor drives and inverters. IC Role / Device Role / Timing Role: Fast clamping diode absorbing inductive kickback energy during switching transitions. Use Value: Low V_F and fast recovery enable rapid energy dissipation with minimal voltage overshoot and thermal stress.
Freewheeling Diode	Lighting Driver
Use Scenario: Inductive load current path in relay drivers, solenoid controllers, and LED constant-current regulators. IC Role / Device Role / Timing Role: Provides low-loss return path for stored inductor energy when main switch turns off. Use Value: 30 A I_FSM withstands high-energy transients; 150 °C T_JMAX ensures stability in thermally constrained enclosures.	Use Scenario: Secondary-side rectification in LED driver IC-based constant-current modules for commercial lighting. IC Role / Device Role / Timing Role: Converts high-frequency transformer output to stable DC for LED string biasing. Use Value: DO-214AC footprint allows dense PCB layout; halogen-free construction satisfies IEC 62474 compliance for lighting OEMs.

DC-DC Converter

Snubber Circuit

Use Scenario: Output rectification in isolated flyback or non-isolated buck converters delivering 5–24 V at ≤1 A.

IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer/inductor into regulated DC output.

Use Value: 1.0 V V_F and 50 ns t_rr reduce conduction + switching losses, improving overall converter efficiency by ~2–3% vs. standard rectifiers.

Use Scenario: Voltage spike suppression across MOSFETs or IGBTs in motor drives and inverters.

IC Role / Device Role / Timing Role: Fast clamping diode absorbing inductive kickback energy during switching transitions.

Use Value: Low V_F and fast recovery enable rapid energy dissipation with minimal voltage overshoot and thermal stress.

Freewheeling Diode

Lighting Driver

Use Scenario: Inductive load current path in relay drivers, solenoid controllers, and LED constant-current regulators.

IC Role / Device Role / Timing Role: Provides low-loss return path for stored inductor energy when main switch turns off.

Use Value: 30 A I_FSM withstands high-energy transients; 150 °C T_JMAX ensures stability in thermally constrained enclosures.

Use Scenario: Secondary-side rectification in LED driver IC-based constant-current modules for commercial lighting.

IC Role / Device Role / Timing Role: Converts high-frequency transformer output to stable DC for LED string biasing.

Use Value: DO-214AC footprint allows dense PCB layout; halogen-free construction satisfies IEC 62474 compliance for lighting OEMs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR105G	Same DO-214AC package; 50 V V_RRM, but 1.3 V V_F @ 1 A and 75 ns t_rr	Slightly higher conduction loss and slower recovery; less optimal for >200 kHz designs	Acceptable where efficiency margin is >3% or frequency <150 kHz
Vishay VS-1EH05-M3/5BT	DO-214AC; 50 V V_RRM, 1.1 V V_F @ 1 A, 35 ns t_rr, but MSL Level 2a (floor life 1 year)	Better switching performance but requires moisture control before reflow	Preferred for high-efficiency, high-frequency designs if handling controls are in place

Compared with MUR105G and VS-1EH05-M3/5BT, HS1A M2G offers the lowest forward voltage (≤1.0 V) among 50 V SMA rectifiers with MSL Level 1 - simplifying manufacturing while maintaining competitive recovery speed for mid-frequency power conversion.

Availability

HS1A M2G is available at Aetrix Electronics and suitable for DC-DC converters, snubber circuits, and freewheeling applications requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.

Supply support for HS1A M2G 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 Company (TSC) is a vertically integrated Taiwanese manufacturer specializing in discrete power semiconductors, including rectifiers, TVS diodes, and MOSFETs, serving industrial, computing, and consumer markets since 1979.

The HS1A M2G belongs to TSC's HS1x high-efficiency surface-mount rectifier family, engineered for low-loss, high-reliability power conversion in space-constrained SMT applications demanding fast recovery and robust thermal performance.

FAQ

What is the maximum junction temperature rating for HS1A M2G?

The HS1A M2G has a maximum junction temperature (T_JMAX) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This rating enables reliable operation in enclosed industrial power supplies and automotive under-hood auxiliary circuits where ambient temperatures exceed 85°C. Derating curves confirm usable current capacity down to 0.5 A at 125°C ambient on standard PCB mounting.

Does HS1A M2G meet RoHS and halogen-free requirements?

Yes, HS1A M2G is fully RoHS compliant and halogen-free, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet (Version M2401). The molding compound contains no brominated flame retardants or chlorine-based additives, satisfying IEC 61249-2-21 and JEDEC J-STD-609A Class 1 requirements for environmentally restricted substances.

What is the reverse recovery time (t_rr) specification for HS1A M2G?

The HS1A M2G has a maximum reverse recovery time (t_rr) of 50 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A per the Electrical Specifications table. This value is confirmed across all HS1A–HS1F variants and supports efficient operation in switching power supplies operating up to 500 kHz without significant switching loss penalty.

Is HS1A M2G suitable for automated SMT assembly?

Yes, HS1A M2G is specifically designed for automated placement, as noted in its "Features" list. Its DO-214AC (SMA) package, matte tin-plated leads compliant with J-STD-002, and MSL Level 1 rating allow direct use in standard reflow processes without baking or special handling - making it ideal for high-volume manufacturing of power modules and AC-DC adapters.

What does the "M2G" suffix indicate in HS1A M2G?

The "M2G" suffix in HS1A M2G denotes Taiwan Semiconductor's internal revision and environmental code: "M2" refers to version M2401 of the datasheet, and "G" indicates green (halogen-free) compound packaging. This coding aligns with TSC's standardized ordering nomenclature documented in the "Ordering Information" section of the official datasheet.

HS1A M2G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io):: 1A

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

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 50 V

Capacitance @ Vr, F:: 20pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

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

HS1A M2G FAQ

1.How can I place an order for HS1A M2G through Aetrix?

Please submit a Request for Quotation (RFQ) for HS1A M2G 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 HS1A M2G reliable?

The price and inventory of HS1A M2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1A M2G is usually 5 days.

3.What payment methods are accepted for HS1A M2G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1A M2G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HS1A M2G?

HS1A M2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HS1A M2G 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 HS1A M2G?

For technical support, including HS1A M2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1A M2G requirements.

6.How does Aetrix verify that HS1A M2G is sourced from the original manufacturer or authorized distributors?

All HS1A M2G 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 HS1A M2G meets industry standards.

7.What is the process for return or replacement of HS1A M2G?

All HS1A M2G units undergo pre-shipment inspection (PSI). If there is an issue with HS1A M2G, 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 HS1A M2G part is unused and in its original packaging.

Return procedure for HS1A M2G:

1.Submit a request within 90 days.

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

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