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

Taiwan Semiconductor Corporation S1GHR3G

Name: S1GHR3G
Brand: Taiwan Semiconductor Corporation
SKU: S1GHR3G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1GHR3G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: S1GHR3G.pdf

Description:: DIODE GEN PURP 400V 1A DO214AC

Quantity:: RFQ Add To RFQ list

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Inventory:3,599

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Product details

Overview

S1GHR3G from Taiwan Semiconductor is a 1 A, 400 V surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring glass-passivated junction, 1.1 V max forward voltage at 1 A, and 1 µA max reverse leakage at 25°C, used in DC-DC converters and snubber circuits.

For engineers reviewing the S1GHR3G datasheet, S1GHR3G pinout, S1GHR3G application, or S1GHR3G equivalent, key selection criteria include repetitive peak reverse voltage (400 V), thermal resistance (R_θJL = 27 °C/W), junction temperature range (–55 to +175 °C), and RoHS/halogen-free compliance for industrial power conversion designs.

Technical Context

This single-die standard recovery rectifier operates with a reverse recovery time of 1500 ns under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A conditions and exhibits 12 pF junction capacitance at 1 MHz and 4.0 V reverse bias.

Its thermal performance supports continuous operation up to 175 °C junction temperature, with R_θJA = 75 °C/W (free air) and R_θJL = 27 °C/W, enabling reliable use in compact, high-density PCB layouts without forced cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
Repetitive Peak Reverse Voltage (V_RRM)	400 V - defines maximum allowable reverse-biased blocking capability in switching or snubber applications
Forward Current (I_F)	1 A continuous - rated average forward conduction capacity at case temperature ≤ 75 °C
Forward Voltage (V_F)	≤ 1.1 V at I_F = 1 A, T_J = 25 °C - determines conduction loss and thermal load in power stage
Reverse Leakage Current (I_R)	≤ 1 µA at V_R = 400 V, T_J = 25 °C - critical for low-power standby and high-impedance sensing circuits
Junction-to-Lead Thermal Resistance (R_θJL)	27 °C/W - enables direct heat transfer to PCB copper pour or heatsink via cathode lead
Reverse Recovery Time (t_rr)	1500 ns - impacts switching losses and EMI in medium-frequency (<100 kHz) SMPS topologies
Junction Capacitance (C_J)	12 pF at 1 MHz, V_R = 4.0 V - influences high-frequency noise coupling and snubber tuning

Pinout & Package

Package: DO-214AC (SMA), molded epoxy case meeting UL 94V-0, matte tin-plated leads, cathode indicated by band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry terminal during forward conduction	Connected to lower-potential side (e.g., switch node or ground return) in rectification path
Cathode	Current exit terminal during forward conduction; polarity indicator band	Connected to output rail or capacitor positive; primary thermal path to PCB copper

Key Features

Feature	Design Value
Glass-passivated junction	Enhances long-term reliability and moisture resistance in humid or reflow-cycled environments
Moisture sensitivity level 1 (J-STD-020)	Eliminates bake requirement prior to SMT assembly, reducing process overhead and risk of damage
RoHS and halogen-free compliance (IEC 61249-2-21)	Meets global environmental regulations for industrial and consumer electronics manufacturing
Low forward voltage drop	Minimizes conduction loss and self-heating in 1 A continuous-duty applications like LED drivers

Applications

DC-DC Converter	Snubber Circuit
Use Scenario: Secondary-side rectification in isolated flyback or forward converters operating at 50–100 kHz. IC Role / Device Role / Timing Role: Unidirectional current steering and energy transfer from transformer secondary to output capacitor. Use Value: 400 V V_RRM safely handles reflected voltage spikes; 1.1 V V_F limits power loss at 1 A load.	Use Scenario: Clamp transient voltage across MOSFETs or IGBTs in motor drives and inverters. IC Role / Device Role / Timing Role: Fast-recovery path for inductive kickback energy dissipation. Use Value: 1500 ns t_rr balances clamping speed and minimal oscillation; 30 A I_FSM withstands surge events.
Lighting Application	Switching Mode Inverter
Use Scenario: Input bridge or output rectification in constant-current LED drivers for commercial lighting. IC Role / Device Role / Timing Role: AC line rectification or DC bus smoothing before buck/boost regulation. Use Value: 175 °C T_JMAX ensures stable operation in enclosed luminaires; halogen-free construction meets safety standards.	Use Scenario: Output rectification in 24 V–48 V input inverters for UPS or solar micro-inverters. IC Role / Device Role / Timing Role: High-efficiency DC-to-AC stage rectification with minimal thermal rise. Use Value: R_θJL = 27 °C/W allows direct thermal coupling to heatsink; DO-214AC footprint fits dense power board layouts.

DC-DC Converter

Snubber Circuit

Use Scenario: Secondary-side rectification in isolated flyback or forward converters operating at 50–100 kHz.

IC Role / Device Role / Timing Role: Unidirectional current steering and energy transfer from transformer secondary to output capacitor.

Use Value: 400 V V_RRM safely handles reflected voltage spikes; 1.1 V V_F limits power loss at 1 A load.

Use Scenario: Clamp transient voltage across MOSFETs or IGBTs in motor drives and inverters.

IC Role / Device Role / Timing Role: Fast-recovery path for inductive kickback energy dissipation.

Use Value: 1500 ns t_rr balances clamping speed and minimal oscillation; 30 A I_FSM withstands surge events.

Lighting Application

Switching Mode Inverter

Use Scenario: Input bridge or output rectification in constant-current LED drivers for commercial lighting.

IC Role / Device Role / Timing Role: AC line rectification or DC bus smoothing before buck/boost regulation.

Use Value: 175 °C T_JMAX ensures stable operation in enclosed luminaires; halogen-free construction meets safety standards.

Use Scenario: Output rectification in 24 V–48 V input inverters for UPS or solar micro-inverters.

IC Role / Device Role / Timing Role: High-efficiency DC-to-AC stage rectification with minimal thermal rise.

Use Value: R_θJL = 27 °C/W allows direct thermal coupling to heatsink; DO-214AC footprint fits dense power board layouts.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR140	Ultrafast recovery (t_rr ≈ 50 ns), same V_RRM (400 V), higher V_F (1.3 V typ)	Better suited for >200 kHz SMPS where switching loss dominates conduction loss	Select when minimizing EMI and improving efficiency above 100 kHz outweighs higher conduction loss
Vishay VS-1N4007-M3/54	General-purpose recovery (t_rr > 2000 ns), same I_F/V_RRM, higher V_F (1.1 V max at 1 A), axial DO-41 package	Limited to low-frequency (<1 kHz), non-SMT applications due to package and speed	Choose only for through-hole prototyping or legacy repair where SMA footprint is unavailable

Compared with MUR140 and VS-1N4007-M3/54, the S1GHR3G delivers optimal balance of cost, thermal performance (R_θJL = 27 °C/W), and medium-speed recovery (1500 ns) for 50–100 kHz industrial power supplies requiring surface-mount reliability and RoHS compliance.

Availability

S1GHR3G is available at Aetrix Electronics and suitable for DC-DC converters, snubber circuits, and lighting applications requiring stable component supply, full traceability, and long-term industrial availability.

Supply support for S1GHR3G 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, serving industrial, computing, and consumer markets since 1979.

The S1GHR3G belongs to TSC's S1x series of general-purpose surface-mount rectifiers, designed specifically for cost-sensitive, high-volume power conversion applications demanding robust thermal performance and JEDEC-compliant packaging.

FAQ

What is the maximum junction temperature rating for the S1GHR3G?

The S1GHR3G has a maximum junction temperature (T_JMAX) of +175 °C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version S2102). This rating allows sustained operation in high-ambient environments such as enclosed LED drivers or industrial motor controls. Derating curves confirm usable current capacity down to 0.5 A at 125 °C case temperature. The S1GHR3G must be mounted on adequate copper area to maintain this limit.

Is the S1GHR3G RoHS and halogen-free compliant?

Yes, the S1GHR3G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor S1A–S1M datasheet (Version S2102). The molding compound and plating meet environmental requirements for export to EU, Japan, and other regulated markets. No exemptions apply, and full compliance documentation is available upon request for the S1GHR3G.

What does the 'G' in S1GHR3G signify?

The 'G' in S1GHR3G denotes the 400 V repetitive peak reverse voltage (V_RRM) rating within the S1x family - per the "ABSOLUTE MAXIMUM RATINGS" table, S1G corresponds to V_RRM = 400 V. The 'HR3G' suffix indicates Taiwan Semiconductor's internal tape-and-reel packaging variant (7,500 pcs/reel, DO-214AC), not a functional or electrical deviation from the base S1G specification.

Can the S1GHR3G replace a 1N4007 in a new design?

The S1GHR3G is not a direct replacement for the 1N4007 due to differences in package (DO-214AC vs. DO-41), thermal performance (R_θJL = 27 °C/W vs. ~50 °C/W), and recovery speed (1500 ns vs. >2000 ns). While both are 1 A, 1000 V-rated rectifiers, the S1GHR3G requires SMT layout and offers superior thermal transfer. Use the S1GHR3G only when redesigning for surface-mount assembly and medium-frequency operation.

What is the reverse recovery time (t_rr) test condition for the S1GHR3G?

The reverse recovery time of 1500 ns for the S1GHR3G is measured under the conditions specified in the "ELECTRICAL SPECIFICATIONS" table: forward current I_F = 0.5 A, reverse current I_R = 1.0 A, and reverse recovery current I_rr = 0.25 A. This standardized test reflects real-world behavior in snubber and flyback clamp circuits. The S1GHR3G datasheet confirms no derating is required for this parameter at T_J = 25 °C.

S1GHR3G 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):: 400 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 1 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 1.5 µs

Current - Reverse Leakage @ Vr:: 1 µA @ 400 V

Capacitance @ Vr, F:: 12pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

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

Operating Temperature - Junction:: -55°C ~ 175°C

S1GHR3G FAQ

1.How can I place an order for S1GHR3G through Aetrix?

Please submit a Request for Quotation (RFQ) for S1GHR3G 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 S1GHR3G reliable?

The price and inventory of S1GHR3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1GHR3G is usually 5 days.

3.What payment methods are accepted for S1GHR3G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1GHR3G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1GHR3G?

S1GHR3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1GHR3G 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 S1GHR3G?

For technical support, including S1GHR3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1GHR3G requirements.

6.How does Aetrix verify that S1GHR3G is sourced from the original manufacturer or authorized distributors?

All S1GHR3G 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 S1GHR3G meets industry standards.

7.What is the process for return or replacement of S1GHR3G?

All S1GHR3G units undergo pre-shipment inspection (PSI). If there is an issue with S1GHR3G, 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 S1GHR3G part is unused and in its original packaging.

Return procedure for S1GHR3G:

1.Submit a request within 90 days.

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

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