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 1N4936GHB0G

Name: 1N4936GHB0G
Brand: Taiwan Semiconductor Corporation
SKU: 1N4936GHB0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 1N4936GHB0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: 1N4936GHB0G.pdf

Description:: DIODE GEN PURP 400V 1A DO204AL

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,612

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

Product details

Overview

1N4936GHB0G from Taiwan Semiconductor is a 1A, 400V fast recovery rectifier diode in DO-41 package, featuring 200ns reverse recovery time, 1.2V forward voltage at 1A, and 30A surge current capability-used in switching-mode DC/DC converters requiring efficient unidirectional conduction.

For engineers reviewing the 1N4936GHB0G datasheet, 1N4936GHB0G pinout, 1N4936GHB0G application, or 1N4936GHB0G equivalent, key selection criteria include V_RRM = 400V, I_F = 1A, trr ≤ 200ns, thermal resistance R_θJA = 65°C/W, and AEC-Q101 qualification status for automotive-grade reliability.

Technical Context

This device operates as a single-die, unidirectional fast recovery rectifier with cathode-band polarity marking. Its 200ns reverse recovery time enables high-frequency switching in SMPS topologies, while the 1.2V V_F at 1A and 30A I_FSM support transient-heavy power conversion stages.

The DO-41 (DO-204AL) package provides axial lead mounting, UL 94V-0 molding compound, pure tin-plated leads compliant with J-STD-002, and junction temperature range of –55°C to +150°C-enabling use in thermally constrained industrial and automotive environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse blocking voltage; defines safe operating ceiling in bridge or flyback secondary rectification
I_F	1 A - Continuous average forward current; sets steady-state power handling limit without derating
trr	200 ns - Reverse recovery time; determines minimum switching frequency compatibility and switching loss in hard-switched converters
V_F	1.2 V @ 1A, 25°C - Forward voltage drop; directly impacts conduction loss and thermal design in high-duty-cycle operation
I_FSM	30 A - Non-repetitive surge current (8.3ms half-sine); supports inrush and fault-current tolerance during startup or overload
R_θJA	65 °C/W - Junction-to-ambient thermal resistance; used to calculate temperature rise under given power dissipation in free-air conditions

Pinout & Package

Package: DO-204AL (DO-41), axial-leaded, epoxy-molded case with cathode band marking. Leads are pure tin-plated and solderable per J-STD-002.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) in rectifier configuration
Cathode	Forward current exit point	Marked by colored band; connects to output capacitor positive rail or load return path in standard half-wave or full-wave setups

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control modules and body electronics where reliability under thermal cycling and vibration is critical
Fast recovery (trr ≤ 200 ns)	Enables operation up to ~100 kHz in non-resonant SMPS without excessive switching loss or EMI from tail current
Low V_F = 1.2 V @ 1A	Reduces conduction loss by ~15% vs. standard 1N400x series, improving efficiency in low-voltage, high-current outputs
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS directives-required for export to EU, China, and other regulated markets

Applications

DC/DC Converter Secondary Rectification	Automotive Body Control Module (BCM) Power Supply
Use Scenario: Rectifying transformer secondary output in isolated 12V-to-5V/3.3V flyback converter for microcontroller power rails. IC Role / Device Role / Timing Role: Unidirectional current valve enabling energy transfer from primary to secondary side during switch-off phase. Use Value: 200ns trr minimizes reverse recovery loss at 65–100 kHz switching, while 400V V_RRM provides margin against reflected voltage spikes.	Use Scenario: Input rectification in BCM auxiliary power supply fed from vehicle battery (12V nominal, up to 16V running, 36V load dump). IC Role / Device Role / Timing Role: Polarity protection and AC-to-DC conversion for downstream LDOs and PMICs. Use Value: AEC-Q101 qualification ensures survivability across –40°C to +125°C ambient, and 30A I_FSM withstands 12V load-dump transients.
Industrial Switch-Mode Inverter Auxiliary Supply	Consumer AC-DC Adapter Output Stage
Use Scenario: Bias supply rectification in gate driver IC power stage of 3-phase motor inverter (e.g., HVAC compressor drive). IC Role / Device Role / Timing Role: High-reliability output rectifier delivering stable 15V/20mA bias to isolated gate drivers. Use Value: 150°C T_JMAX and 65°C/W R_θJA allow operation in enclosed enclosures with minimal heatsinking.	Use Scenario: Output rectification in compact 5V/2A wall adapter using QR flyback topology. IC Role / Device Role / Timing Role: Final-stage power conversion element delivering regulated DC to USB ports. Use Value: Low 1.2V V_F reduces thermal stress on PCB layout, and DO-41 footprint enables automated axial insertion in high-volume assembly.

DC/DC Converter Secondary Rectification

Automotive Body Control Module (BCM) Power Supply

Use Scenario: Rectifying transformer secondary output in isolated 12V-to-5V/3.3V flyback converter for microcontroller power rails.

IC Role / Device Role / Timing Role: Unidirectional current valve enabling energy transfer from primary to secondary side during switch-off phase.

Use Value: 200ns trr minimizes reverse recovery loss at 65–100 kHz switching, while 400V V_RRM provides margin against reflected voltage spikes.

Use Scenario: Input rectification in BCM auxiliary power supply fed from vehicle battery (12V nominal, up to 16V running, 36V load dump).

IC Role / Device Role / Timing Role: Polarity protection and AC-to-DC conversion for downstream LDOs and PMICs.

Use Value: AEC-Q101 qualification ensures survivability across –40°C to +125°C ambient, and 30A I_FSM withstands 12V load-dump transients.

Industrial Switch-Mode Inverter Auxiliary Supply

Consumer AC-DC Adapter Output Stage

Use Scenario: Bias supply rectification in gate driver IC power stage of 3-phase motor inverter (e.g., HVAC compressor drive).

IC Role / Device Role / Timing Role: High-reliability output rectifier delivering stable 15V/20mA bias to isolated gate drivers.

Use Value: 150°C T_JMAX and 65°C/W R_θJA allow operation in enclosed enclosures with minimal heatsinking.

Use Scenario: Output rectification in compact 5V/2A wall adapter using QR flyback topology.

IC Role / Device Role / Timing Role: Final-stage power conversion element delivering regulated DC to USB ports.

Use Value: Low 1.2V V_F reduces thermal stress on PCB layout, and DO-41 footprint enables automated axial insertion in high-volume assembly.

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 = 400V, I_F = 1A, trr = 50ns (faster), VF = 1.3V @ 1A	Lower trr enables >200 kHz operation; higher V_F increases conduction loss	Preferred when switching frequency exceeds 150 kHz and thermal headroom permits slightly higher V_F
ON Semiconductor MUR140	V_RRM = 400V, I_F = 1A, trr = 75ns, VF = 1.25V @ 1A, DO-41 package	Similar V_F, faster trr, but not AEC-Q101 qualified	Cost-effective alternative for non-automotive industrial or consumer designs where qualification is not required

Compared with STTH1R04 and MUR140, the 1N4936GHB0G offers AEC-Q101 qualification and identical V_RRM/I_F ratings but slower trr-making it optimal for cost-sensitive automotive auxiliary supplies operating below 100 kHz where qualification outweighs ultra-fast recovery.

Availability

1N4936GHB0G is available at Aetrix Electronics and suitable for DC/DC converters, automotive body control modules, and industrial switching inverters requiring stable component supply with AEC-Q101 compliance and DO-41 through-hole compatibility.

Supply support for 1N4936GHB0G 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 industrial, automotive, and consumer markets since 1979.

The 1N493xG family is designed specifically for high-reliability, medium-voltage fast recovery rectification in space-constrained power supplies-emphasizing robust surge capability, thermal stability, and automotive-grade qualification.

FAQ

What is the peak repetitive reverse voltage rating for the 1N4936GHB0G?

The 1N4936GHB0G has a peak repetitive reverse voltage (V_RRM) rating of 400 V. This value is specified in the Absolute Maximum Ratings table and defines the maximum reverse-biased voltage the diode can block repeatedly without breakdown. It is critical for selecting appropriate voltage margin in rectifier circuits-especially in flyback or forward converters where reflected voltages may exceed nominal input levels.

Is the 1N4936GHB0G AEC-Q101 qualified, and what does the 'H' suffix indicate?

Yes, the 1N4936GHB0G is AEC-Q101 qualified-the 'H' in the part number explicitly denotes qualification per the AEC-Q101 stress test standard for discrete semiconductors. This includes testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life. The qualification confirms suitability for automotive applications such as body electronics, infotainment power supplies, and ADAS subsystems where long-term reliability under harsh environmental conditions is mandatory.

What is the reverse recovery time (trr) of the 1N4936GHB0G, and how does it affect circuit performance?

The reverse recovery time (trr) of the 1N4936GHB0G is rated at 200 ns under standard test conditions (I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A). This parameter directly influences switching losses and EMI generation in high-frequency converters. At 200 ns, the 1N4936GHB0G supports reliable operation up to approximately 100 kHz in hard-switched topologies-beyond which faster alternatives like the STTH1R04 (50 ns) may be preferred to minimize recovery-related losses.

What package type does the 1N4936GHB0G use, and what are its mechanical features?

The 1N4936GHB0G uses the DO-204AL (DO-41) axial-leaded package. Key mechanical features include UL 94V-0 rated epoxy molding compound, pure tin-plated leads compliant with J-STD-002 solderability requirements, cathode polarity indicated by a visible band, and a typical weight of 0.330 g. Its standardized DO-41 footprint allows compatibility with legacy through-hole assembly lines and manual prototyping without retooling.

How does the forward voltage (V_F) of the 1N4936GHB0G compare to standard rectifiers like the 1N4007?

The 1N4936GHB0G has a maximum forward voltage (V_F) of 1.2 V at 1 A and 25°C, significantly lower than the 1N4007's typical 1.7 V under the same conditions. This 0.5 V reduction lowers conduction loss by ~30% at full load, improving overall system efficiency and reducing thermal stress on the PCB-particularly beneficial in compact, sealed, or thermally limited applications such as automotive ECUs or industrial power adapters.

1N4936GHB0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

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

Packaging:: Bulk

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

1N4936GHB0G FAQ

1.How can I place an order for 1N4936GHB0G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4936GHB0G 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 1N4936GHB0G reliable?

The price and inventory of 1N4936GHB0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4936GHB0G is usually 5 days.

3.What payment methods are accepted for 1N4936GHB0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4936GHB0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4936GHB0G?

1N4936GHB0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4936GHB0G 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 1N4936GHB0G?

For technical support, including 1N4936GHB0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4936GHB0G requirements.

6.How does Aetrix verify that 1N4936GHB0G is sourced from the original manufacturer or authorized distributors?

All 1N4936GHB0G 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 1N4936GHB0G meets industry standards.

7.What is the process for return or replacement of 1N4936GHB0G?

All 1N4936GHB0G units undergo pre-shipment inspection (PSI). If there is an issue with 1N4936GHB0G, 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 1N4936GHB0G part is unused and in its original packaging.

Return procedure for 1N4936GHB0G:

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…