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

Taiwan Semiconductor Corporation ESH3B M6G

Name: ESH3B M6G
Brand: Taiwan Semiconductor Corporation
SKU: ESH3B M6G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ESH3B M6G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: ESH3B M6G.pdf

Description:: DIODE GEN PURP 100V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:5,930

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Product details

Overview

ESH3B M6G from Taiwan Semiconductor is a 100V ultra-fast recovery surface-mount rectifier diode in DO-214AB (SMC) package, rated for 3A average forward current, 125A non-repetitive surge, and 20ns reverse recovery time - used in high-frequency switching-mode power supplies for computer and telecom systems.

For engineers reviewing the ESH3B M6G datasheet, ESH3B M6G pinout, ESH3B M6G application, or ESH3B M6G equivalent, key selection criteria include V_RRM = 100 V, I_F = 3 A, t_rr = 20 ns, R_θJA = 47 °C/W, and DO-214AB mechanical compatibility with automated SMT assembly lines.

Technical Context

The ESH3B M6G is a single-die, glass-passivated silicon junction rectifier optimized for high-efficiency DC/DC conversion where fast switching and low conduction loss are critical. Its 20 ns reverse recovery time enables operation at frequencies up to several hundred kHz without excessive switching losses.

Designed for surface-mount use in space-constrained power stages, it features matte tin-plated leads compliant with J-STD-002 solderability, moisture sensitivity level 1 per J-STD-020, and UL 94V-0 molding compound - supporting reflow and wave soldering in industrial and telecom production environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in flyback or boost converter output stages.
I_F	3 A - Continuous average forward current at T_L = 75°C; supports compact heatsinking in 12–48 V input SMPS designs.
t_rr	20 ns - Measured at I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A; enables efficient operation in >200 kHz switching topologies.
V_F	0.9 V max @ I_F = 3 A, T_J = 25°C - Low forward drop reduces conduction loss and thermal stress in high-duty-cycle applications.
R_θJA	47 °C/W - Junction-to-ambient thermal resistance; informs PCB copper area requirements for thermal management without heatsink.
C_J	45 pF @ 1 MHz, V_R = 4 V - Low junction capacitance minimizes capacitive coupling and EMI in high-dv/dt switching nodes.

Pinout & Package

Package: DO-214AB (SMC), surface-mount, low-profile plastic case with cathode band marking; dimensions per Taiwan Semiconductor outline drawing; weight ≈ 0.200 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); requires adequate trace width for 3 A continuous current.
Cathode	Forward current exit / reverse blocking terminal	Marked by visible band; connects to output rail or bus; must withstand full V_RRM during off-state in freewheeling paths.

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability under thermal cycling and humidity exposure in industrial-grade power modules.
Ultra-fast 20 ns recovery	Reduces reverse recovery charge (Q_rr) and associated switching losses versus standard rectifiers, improving efficiency above 100 kHz.
DO-214AB (SMC) package	Enables automated pick-and-place placement and supports high-current density routing on 1–2 oz copper PCBs.
Moisture sensitivity level 1	Eliminates need for baking prior to reflow; compatible with standard J-STD-020 handling and storage protocols.

Applications

Server PSU Output Rectification	Telecom DC/DC Converter Freewheeling
Use Scenario: Secondary-side rectification in 48 V input, 12 V output isolated DC/DC converters for rack-mounted servers. IC Role / Device Role / Timing Role: Ultra-fast rectifier conducting during synchronous rectifier dead-time; handles 3 A continuous load with minimal voltage overshoot. Use Value: 20 ns t_rr prevents reverse recovery-induced shoot-through and reduces snubber losses compared to 50 ns alternatives.	Use Scenario: Freewheeling path in 48 V to 3.3 V non-isolated buck converters powering baseband processors in 5G radio units. IC Role / Device Role / Timing Role: Provides low-loss return path during high-side MOSFET off-time; operates at 300–500 kHz switching frequency. Use Value: 0.9 V V_F max lowers conduction loss by ~15% vs. 1.1 V Schottky alternatives at 3 A, reducing thermal footprint.
Industrial PLC Power Input Stage	AC-DC Adapter Output Bridge Leg
Use Scenario: Input rectification in wide-input (85–265 VAC) offline SMPS supplying 24 V control rails for programmable logic controllers. IC Role / Device Role / Timing Role: Single leg of bridge rectifier replacing slower 1N4007 variants; subjected to 125 A surge during cold-start inrush. Use Value: 125 A I_FSM rating ensures robustness against line transients and capacitor charging surges without derating.	Use Scenario: Output stage rectification in compact 12 V/3 A wall adapters using quasi-resonant flyback topology. IC Role / Device Role / Timing Role: High-frequency output rectifier operating at 65–130 kHz; placed adjacent to transformer secondary winding. Use Value: DO-214AB package allows tight layout with minimal loop inductance, suppressing EMI generated by 20 ns t_rr edge transitions.

Server PSU Output Rectification

Telecom DC/DC Converter Freewheeling

Use Scenario: Secondary-side rectification in 48 V input, 12 V output isolated DC/DC converters for rack-mounted servers.

IC Role / Device Role / Timing Role: Ultra-fast rectifier conducting during synchronous rectifier dead-time; handles 3 A continuous load with minimal voltage overshoot.

Use Value: 20 ns t_rr prevents reverse recovery-induced shoot-through and reduces snubber losses compared to 50 ns alternatives.

Use Scenario: Freewheeling path in 48 V to 3.3 V non-isolated buck converters powering baseband processors in 5G radio units.

IC Role / Device Role / Timing Role: Provides low-loss return path during high-side MOSFET off-time; operates at 300–500 kHz switching frequency.

Use Value: 0.9 V V_F max lowers conduction loss by ~15% vs. 1.1 V Schottky alternatives at 3 A, reducing thermal footprint.

Industrial PLC Power Input Stage

AC-DC Adapter Output Bridge Leg

Use Scenario: Input rectification in wide-input (85–265 VAC) offline SMPS supplying 24 V control rails for programmable logic controllers.

IC Role / Device Role / Timing Role: Single leg of bridge rectifier replacing slower 1N4007 variants; subjected to 125 A surge during cold-start inrush.

Use Value: 125 A I_FSM rating ensures robustness against line transients and capacitor charging surges without derating.

Use Scenario: Output stage rectification in compact 12 V/3 A wall adapters using quasi-resonant flyback topology.

IC Role / Device Role / Timing Role: High-frequency output rectifier operating at 65–130 kHz; placed adjacent to transformer secondary winding.

Use Value: DO-214AB package allows tight layout with minimal loop inductance, suppressing EMI generated by 20 ns t_rr edge transitions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-3EWH10FN-M3/45	V_RRM = 100 V, t_rr = 25 ns, I_F = 3 A, DO-214AB - slightly slower recovery, same package and current rating.	Higher Q_rr increases switching loss in >300 kHz designs; suitable for cost-sensitive 100–200 kHz applications.	Select when marginally higher t_rr is acceptable and second-source qualification is required.
ON Semiconductor MUR310EG	V_RRM = 100 V, t_rr = 35 ns, I_F = 3 A, DO-214AC (SMA) - different package (smaller), higher thermal resistance (R_θJA = 70 °C/W).	Lower power density due to SMA package; not recommended for >2 A continuous loads without forced air.	Choose only for legacy SMA footprint compatibility; avoid in new designs requiring thermal headroom.

Compared with VS-3EWH10FN-M3/45 and MUR310EG, the ESH3B M6G delivers superior high-frequency efficiency via its 20 ns t_rr and lower R_θJA, making it optimal for thermally constrained, high-switching-frequency telecom and server power supplies.

Availability

ESH3B M6G is available at Aetrix Electronics and suitable for server power supplies, telecom DC/DC converters, and industrial PLC power stages requiring stable component supply and consistent DO-214AB mechanical form factor.

Supply support for ESH3B M6G 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q200 qualified products.

The ESH3B M6G belongs to TSC's ESH3x ultra-fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power conversion in computing, communications, and industrial equipment.

FAQ

What is the maximum junction temperature rating for the ESH3B M6G?

The ESH3B M6G has a maximum junction temperature (T_J) of +175°C, allowing reliable operation in high-ambient environments such as enclosed server chassis or sealed industrial enclosures. This rating is maintained across the full storage temperature range of −55°C to +175°C, ensuring stability during thermal cycling. The ESH3B M6G's glass-passivated junction contributes to this extended thermal capability.

Is the ESH3B M6G RoHS and halogen-free compliant?

Yes, the ESH3B M6G is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability standards, and its matte tin-plated leads satisfy J-STD-002 solderability requirements. These certifications are confirmed in Taiwan Semiconductor's official documentation for the ESH3B M6G device.

What does the "M6G" suffix indicate in ESH3B M6G?

The "M6G" suffix in ESH3B M6G denotes Taiwan Semiconductor's internal packaging and environmental code: "M6" specifies tape-and-reel packaging (3,000 pcs per reel), and "G" indicates green (halogen-free) compound. This matches the ordering information in the official ESH3B M6G datasheet and aligns with TSC's standardized part numbering convention.

Can the ESH3B M6G replace a standard 1N5408 rectifier in a linear power supply?

No - the ESH3B M6G is optimized for high-frequency switching applications, not linear supplies. While it shares the same 3 A current rating, its ultra-fast 20 ns recovery offers no benefit at 50/60 Hz and may increase EMI due to faster edges. For linear supplies, standard slow-recovery rectifiers like 1N5408 remain appropriate; the ESH3B M6G should be used only where its t_rr and V_F advantages are leveraged in SMPS topologies.

What is the reverse leakage current specification for ESH3B M6G at elevated temperature?

The ESH3B M6G exhibits a maximum reverse leakage current (I_R) of 150 µA at T_J = 125°C and rated V_R, per its electrical specifications table. At T_J = 25°C, I_R is limited to 5 µA. This low, temperature-stable leakage supports stable performance in hot-running power stages without compromising standby efficiency.

ESH3B M6G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 3 A

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

Reverse Recovery Time (trr):: 20 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 100 V

Capacitance @ Vr, F:: 45pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

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

ESH3B M6G FAQ

1.How can I place an order for ESH3B M6G through Aetrix?

Please submit a Request for Quotation (RFQ) for ESH3B M6G 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 ESH3B M6G reliable?

The price and inventory of ESH3B M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH3B M6G is usually 5 days.

3.What payment methods are accepted for ESH3B M6G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH3B M6G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ESH3B M6G?

ESH3B M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ESH3B M6G 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 ESH3B M6G?

For technical support, including ESH3B M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH3B M6G requirements.

6.How does Aetrix verify that ESH3B M6G is sourced from the original manufacturer or authorized distributors?

All ESH3B M6G 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 ESH3B M6G meets industry standards.

7.What is the process for return or replacement of ESH3B M6G?

All ESH3B M6G units undergo pre-shipment inspection (PSI). If there is an issue with ESH3B M6G, 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 ESH3B M6G part is unused and in its original packaging.

Return procedure for ESH3B M6G:

1.Submit a request within 90 days.

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

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