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

Diodes Incorporated 1N4936GL-T

Name: 1N4936GL-T
Brand: Diodes Incorporated
SKU: 1N4936GL-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N4936GL-T

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

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

Datasheet:: 1N4936GL-T.pdf

Description:: DIODE GEN PURP 400V 1A DO41

Quantity:: RFQ Add To RFQ list

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Inventory:9,322

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Product details

Overview

1N4936GL-T from Diodes Incorporated is a 1.0A fast recovery glass passivated rectifier diode with 400V peak repetitive reverse voltage (V_RRM), 1.2V forward voltage at 1.0A, and 200ns reverse recovery time (t_rr), designed for AC/DC input stage rectification in offline power supplies and auxiliary power rails.

For engineers reviewing the 1N4936GL-T datasheet, 1N4936GL-T pinout, 1N4936GL-T application, or 1N4936GL-T equivalent, key selection criteria include V_RRM margin for 230VAC surge tolerance, t_rr-driven EMI reduction in flyback snubbers, thermal derating above 75°C ambient, and DO-41 lead-form compatibility with through-hole PCB layouts.

Technical Context

This discrete silicon rectifier uses a diffused junction and glass passivated die construction to achieve stable fast recovery performance across -65°C to +150°C operating range. Its 30A non-repetitive peak forward surge current (I_FSM) supports cold-start inrush handling in unregulated AC/DC front-ends.

The device exhibits 15pF typical junction capacitance at 4.0V reverse bias and 1.0MHz, enabling predictable high-frequency switching behavior in clamp circuits. Thermal resistance of 100K/W (junction-to-ambient) requires PCB copper area management for sustained 1.0A conduction at elevated ambient temperatures.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400V - Withstands peak line voltage surges up to 380V in 230VAC systems with safety margin.
I_O	1.0A @ T_A = 75°C - Continuous DC output current rating under standard PCB mounting conditions.
V_FM	1.2V @ I_F = 1.0A - Low conduction loss enables >85% efficiency in low-power SMPS secondary-side rectification.
t_rr	200ns - Reduces switching losses and EMI generation compared to general-purpose rectifiers (e.g., 1N4007: 30µs).
I_FSM	30A (8.3ms half-sine) - Handles capacitor-input filter inrush without failure during power-up cycles.
C_j	15pF @ 4V, 1MHz - Predictable capacitive loading in RC snubber networks and high-frequency clamp designs.
R_θJA	100K/W - Requires ≥1 cm² copper pour for full 1.0A operation at 75°C ambient per JEDEC JESD51-3.

Pinout & Package

Package: DO-41 molded plastic case with axial leads, cathode band marking, RoHS-compliant bright tin plating, UL 94V-0 flammability rating, and moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to AC input or transformer secondary winding; must withstand full reverse voltage when reverse-biased.
Cathode (Lead 2, banded end)	Forward current exit point	Connected to output capacitor or load; polarity marking ensures correct orientation in bridge or single-diode rectifier configurations.

Key Features

Feature	Design Value
Glass passivated die	Eliminates surface contamination-induced leakage drift and improves long-term reliability in humid environments.
Fast recovery (200ns)	Reduces reverse recovery charge (Q_rr) to <1.2µC, minimizing turn-off losses in 50–100kHz flyback converters.
30A surge rating	Supports 10× rated current for one AC cycle, enabling use without external inrush limiters in cost-sensitive adapters.
DO-41 axial package	Enables manual or wave soldering on legacy through-hole PCBs and compatibility with standard diode sockets and test fixtures.

Applications

AC/DC Adapter Input Rectification

Industrial Control Auxiliary Supply

Use Scenario: 230VAC-to-12VDC adapter with capacitor-input filter and no PFC stage.

IC Role / Device Role / Timing Role: Primary rectifier converting AC line to pulsating DC before bulk capacitor smoothing.

Use Value: 400V V_RRM provides 20% margin over 325V peak 230VAC, while 200ns t_rr limits EMI during zero-crossing commutation.

Use Scenario: 24VAC control transformer feeding isolated 5V logic rail in PLC I/O module.

IC Role / Device Role / Timing Role: Half-wave rectifier supplying low-current bias to optocouplers and microcontroller reset circuitry.

Use Value: 1.0A I_O headroom supports transient loads up to 500mA, and DO-41 form factor fits constrained board space near transformer terminals.

LED Driver Bulk Rectification

Automotive Aftermarket Power Module

Use Scenario: Non-isolated buck-based LED driver powered from 120VAC mains via bridge rectifier.

IC Role / Device Role / Timing Role: One leg of full-wave bridge rectifying AC input prior to DC link capacitor.

Use Value: 1.2V V_FM minimizes conduction loss at 350mA average current, improving thermal margin in enclosed lamp housings.

Use Scenario: 12V vehicle battery charger with AC input stage for workshop use.

IC Role / Device Role / Timing Role: Input rectifier handling 100–240VAC universal input with surge protection.

Use Value: 30A I_FSM survives 170VAC brownout recovery spikes, and RoHS-compliant finish meets automotive aftermarket chemical exposure requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1L06U	V_RRM = 600V, t_rr = 75ns, SOD-123FL package	Surface-mount only; lower leakage (I_R = 1μA @ 100°C) but requires reflow-compatible layout	Select for higher-voltage margin and automated assembly where board space is constrained.
ON Semi MUR120	V_RRM = 200V, t_rr = 75ns, DO-41 package	Lower voltage rating limits use to 120VAC systems; faster recovery reduces snubber losses	Select for 120VAC-only designs requiring minimal reverse recovery loss in high-frequency converters.

Compared with 1N4936GL-T, STTH1L06U offers superior voltage margin and speed but mandates SMT redesign, while MUR120 provides faster recovery in the same DO-41 footprint but sacrifices 200V of reverse blocking capability-making it unsuitable for universal-input applications.

Availability

1N4936GL-T is available at Aetrix Electronics and suitable for AC/DC adapters, industrial control auxiliary supplies, and LED driver bulk rectification requiring stable component supply and long-term manufacturing continuity.

Supply support for 1N4936GL-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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.

The 1N493xG series belongs to Diodes' general-purpose fast recovery rectifier product line, engineered specifically for cost-sensitive, high-volume AC/DC front-end applications where reliability, surge robustness, and thermal stability are prioritized over ultra-high-speed performance.

FAQ

What is the maximum allowable ambient temperature for continuous 1.0A operation?

The 1N4936GL-T is rated for 1.0A average forward current at T_A = 75°C with 9.5mm lead length and free-air conditions. At 100°C ambient, derated current drops to approximately 0.75A per Figure 1 in the datasheet. For PCB-mounted operation, thermal relief copper area directly impacts usable current capacity.

Is 1N4936GL-T suitable for use in a full-wave bridge configuration?

Yes-1N4936GL-T is commonly used as one quadrant in discrete full-wave bridge rectifiers. Its DO-41 package, 400V V_RRM, and 30A I_FSM make it compatible with standard bridge layouts. Ensure matching diodes are used for balanced current sharing and thermal distribution across all four legs.

How does its reverse recovery time compare to 1N4007 in practical switching circuits?

At 200ns, 1N4936GL-T recovers over 150× faster than 1N4007 (30µs). In 50kHz flyback converters, this reduces reverse recovery energy loss by >95%, lowering diode temperature rise and easing EMI filter requirements-critical for meeting Class B conducted emissions limits.

Does the "L" suffix in 1N4936GL-T indicate lead-free compliance?

Yes-the "L" denotes lead-free finish per EU Directive 2002/95/EC (RoHS), confirmed by bright tin-plated leads and J-STD-020D Level 1 moisture sensitivity. The "-T" suffix indicates tape-and-reel packaging (5,000 units per reel), not environmental compliance.

1N4936GL-T Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-41

Operating Temperature - Junction:: -65°C ~ 150°C

1N4936GL-T FAQ

1.How can I place an order for 1N4936GL-T through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4936GL-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 1N4936GL-T reliable?

The price and inventory of 1N4936GL-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4936GL-T is usually 5 days.

3.What payment methods are accepted for 1N4936GL-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4936GL-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4936GL-T?

1N4936GL-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4936GL-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 1N4936GL-T?

For technical support, including 1N4936GL-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4936GL-T requirements.

6.How does Aetrix verify that 1N4936GL-T is sourced from the original manufacturer or authorized distributors?

All 1N4936GL-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 1N4936GL-T meets industry standards.

7.What is the process for return or replacement of 1N4936GL-T?

All 1N4936GL-T units undergo pre-shipment inspection (PSI). If there is an issue with 1N4936GL-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 1N4936GL-T part is unused and in its original packaging.

Return procedure for 1N4936GL-T:

1.Submit a request within 90 days.

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

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