Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Taiwan Semiconductor Corporation 1N4936GH

Name: 1N4936GH
Brand: Taiwan Semiconductor Corporation
SKU: 1N4936GH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 1N4936GH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: 1N4936GH.pdf

Description:: DIODE GEN PURP 400V 1A DO204AL

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:10,000

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

1N4936GH from Taiwan Semiconductor is a fast recovery rectifier diode rated for 400 V repetitive peak reverse voltage, 1 A average forward current, and 30 A non-repetitive surge current, with 200 ns reverse recovery time and 1.2 V max forward voltage at 1 A - used in DC-DC converters and switching-mode power supplies.

For engineers reviewing the 1N4936GH datasheet, 1N4936GH pinout, 1N4936GH application, or 1N4936GH equivalent, key selection criteria include V_RRM = 400 V, I_F = 1 A, t_rr = 200 ns, V_F ≤ 1.2 V, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This discrete silicon PN-junction fast recovery rectifier features a single-die DO-204AL (DO-41) package with pure tin-plated leads, optimized for high-efficiency switching applications requiring low conduction loss and controlled reverse recovery behavior.

It operates across -55°C to +150°C junction temperature range, exhibits 5 µA max reverse leakage at 25°C and 150 µA at 125°C, and delivers 65°C/W junction-to-ambient thermal resistance under standard PCB mounting conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum repetitive reverse blocking voltage before breakdown
I_F	1 A - continuous average forward current rating at 75°C ambient
I_FSM	30 A - peak non-repetitive surge current (8.3 ms half-sine)
t_rr	200 ns - reverse recovery time under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A
V_F	≤1.2 V - forward voltage drop at 1 A and 25°C junction temperature
I_R	≤5 µA - reverse leakage current at rated V_RRM and 25°C
T_J max	+150°C - maximum allowable junction temperature for reliable operation

Pinout & Package

Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band marking polarity. Weight: 0.330 g. UL 94V-0 compliant molding compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of circuit during conduction; requires thermal relief on PCB for 1 A continuous duty
Cathode	Forward current exit / reverse blocking terminal	Marked by colored band; connects to higher-potential node; carries full reverse voltage when off

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements including HTOL, TC, HTRB, and UHAST
Fast recovery (t_rr ≤ 200 ns)	Reduces switching losses and EMI in high-frequency SMPS operating up to ~100 kHz
Low V_F (≤1.2 V @ 1 A)	Minimizes conduction loss and thermal rise in compact 1 A power rails
High I_FSM (30 A)	Withstands inrush and transient overloads without failure in converter input stages
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing

Applications

Automotive DC-DC Converters	Industrial Switch-Mode Power Supplies
Use Scenario: Secondary-side rectification in 12 V–48 V isolated buck-boost converters for ADAS ECUs and body control modules. IC Role / Device Role / Timing Role: Fast recovery rectifier providing unidirectional current flow with minimal reverse recovery loss. Use Value: AEC-Q101 qualification ensures long-term reliability under automotive thermal cycling and vibration stress.	Use Scenario: Output rectification in 24 V/48 V telecom and industrial SMPS with 50–100 kHz switching frequency. IC Role / Device Role / Timing Role: Discrete power diode handling 1 A continuous output current with fast turn-off to limit ringing. Use Value: 200 ns t_rr and 1.2 V V_F reduce total power loss versus standard recovery diodes.
Consumer AC-DC Adapters	Renewable Energy Charge Controllers
Use Scenario: Output rectification in compact 5–12 V wall adapters using flyback topology. IC Role / Device Role / Timing Role: Low-loss rectifier enabling high efficiency in space-constrained designs. Use Value: DO-41 package allows manual or automated through-hole assembly while meeting energy efficiency standards.	Use Scenario: Blocking diode in solar panel string combiners to prevent reverse current during shading or night. IC Role / Device Role / Timing Role: Unidirectional current gate with 400 V reverse standoff for 24–48 V battery systems. Use Value: 30 A I_FSM withstands lightning-induced surges common in outdoor PV installations.

Automotive DC-DC Converters

Industrial Switch-Mode Power Supplies

Use Scenario: Secondary-side rectification in 12 V–48 V isolated buck-boost converters for ADAS ECUs and body control modules.

IC Role / Device Role / Timing Role: Fast recovery rectifier providing unidirectional current flow with minimal reverse recovery loss.

Use Value: AEC-Q101 qualification ensures long-term reliability under automotive thermal cycling and vibration stress.

Use Scenario: Output rectification in 24 V/48 V telecom and industrial SMPS with 50–100 kHz switching frequency.

IC Role / Device Role / Timing Role: Discrete power diode handling 1 A continuous output current with fast turn-off to limit ringing.

Use Value: 200 ns t_rr and 1.2 V V_F reduce total power loss versus standard recovery diodes.

Consumer AC-DC Adapters

Renewable Energy Charge Controllers

Use Scenario: Output rectification in compact 5–12 V wall adapters using flyback topology.

IC Role / Device Role / Timing Role: Low-loss rectifier enabling high efficiency in space-constrained designs.

Use Value: DO-41 package allows manual or automated through-hole assembly while meeting energy efficiency standards.

Use Scenario: Blocking diode in solar panel string combiners to prevent reverse current during shading or night.

IC Role / Device Role / Timing Role: Unidirectional current gate with 400 V reverse standoff for 24–48 V battery systems.

Use Value: 30 A I_FSM withstands lightning-induced surges common in outdoor PV installations.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R04	V_RRM = 400 V, t_rr = 35 ns, V_F = 1.15 V @ 1 A - faster but not AEC-Q101 qualified	Suitable for non-automotive high-frequency SMPS where ultra-low t_rr is prioritized	Select STTH1R04 only if AEC-Q101 compliance is not required and <35 ns t_rr improves system EMI
ON Semi MUR140	V_RRM = 400 V, t_rr = 50 ns, V_F = 1.25 V @ 1 A - faster recovery, slightly higher V_F, no AEC-Q101	Preferred in cost-sensitive industrial adapters where automotive qualification is unnecessary	Choose MUR140 for higher-volume non-automotive production where tighter t_rr tolerance matters more than qualification

Compared with STTH1R04 and MUR140, the 1N4936GH trades marginally slower recovery (200 ns vs. ≤50 ns) for certified automotive reliability and broader thermal robustness (150°C T_J max), making it optimal for safety-critical vehicle subsystems where qualification outweighs nanosecond-level timing gains.

Availability

1N4936GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and renewable energy charge controllers requiring stable component supply with AEC-Q101 assurance.

Supply support for 1N4936GH 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 global automotive, industrial, and consumer markets since 1979.

The 1N4936GH belongs to TSC's AEC-Q101-qualified fast recovery rectifier family, engineered specifically for high-reliability power conversion in automotive and harsh-environment applications where thermal stability and surge resilience are critical.

FAQ

What is the peak repetitive reverse voltage rating for the 1N4936GH?

The 1N4936GH has a peak repetitive reverse voltage (V_RRM) rating of 400 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2104). It defines the maximum reverse-biased voltage the device can block repeatedly without breakdown under normal operating conditions. Exceeding this rating risks irreversible avalanche failure.

Is the 1N4936GH qualified to AEC-Q101 standards?

Yes, the 1N4936GH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code and confirmed in the Features section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its suitability for automotive electronic control units and power modules.

What is the maximum forward voltage drop of the 1N4936GH at rated current?

The 1N4936GH has a maximum forward voltage (V_F) of 1.2 V at 1 A forward current and 25°C junction temperature, per the Electrical Specifications table. This parameter directly impacts conduction loss and thermal design - at 1 A, the worst-case power dissipation is 1.2 W, requiring appropriate PCB copper area or heatsinking for sustained operation near T_J limits.

Does the 1N4936GH have a specified reverse recovery time?

Yes, the 1N4936GH has a maximum reverse recovery time (t_rr) of 200 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is documented in the Electrical Specifications section and reflects the time required for minority carriers to clear after forward conduction, directly influencing switching loss and EMI in high-frequency power converters.

What package type does the 1N4936GH use, and how is polarity marked?

The 1N4936GH uses the DO-204AL (DO-41) axial-leaded package. Polarity is marked by a visible cathode band on the body - the banded end is the cathode terminal. This marking aligns with JEDEC standards and ensures correct orientation during manual or automated assembly into power supply circuits.

1N4936GH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.2 V @ 1 A

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

Reverse Recovery Time (trr):: 200 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 10pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

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

1N4936GH FAQ

1.How can I place an order for 1N4936GH through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4936GH 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 1N4936GH reliable?

The price and inventory of 1N4936GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4936GH is usually 5 days.

3.What payment methods are accepted for 1N4936GH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4936GH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4936GH?

1N4936GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4936GH 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 1N4936GH?

For technical support, including 1N4936GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4936GH requirements.

6.How does Aetrix verify that 1N4936GH is sourced from the original manufacturer or authorized distributors?

All 1N4936GH 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 1N4936GH meets industry standards.

7.What is the process for return or replacement of 1N4936GH?

All 1N4936GH units undergo pre-shipment inspection (PSI). If there is an issue with 1N4936GH, 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 1N4936GH part is unused and in its original packaging.

Return procedure for 1N4936GH:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…