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 ES1G

Name: ES1G
Brand: Taiwan Semiconductor Corporation
SKU: ES1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ES1G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: ES1G.pdf

Description:: DIODE GEN PURP 400V 1A DO214AC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,498

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

Product details

Overview

ES1G from Taiwan Semiconductor is a 400 V repetitive peak reverse voltage, 1 A average forward current, super fast recovery (35 ns) surface-mount silicon rectifier in DO-214AC (SMA) package, used as freewheeling diode in DC-DC converters and snubber circuits.

For engineers reviewing the ES1G datasheet, ES1G pinout, ES1G application, or ES1G equivalent, key selection criteria include its 400 V V_RRM, 1.30 V max forward voltage at 1 A, 30 A I_FSM, 35 ns reverse recovery time, and DO-214AC thermal performance (R_θJA = 85 °C/W).

Technical Context

The ES1G is a single-die, glass-passivated super fast rectifier optimized for high-frequency switching applications. Its 35 ns trr and low junction capacitance (18 pF at 4 V) minimize switching losses in SMPS and inverters.

It operates across -55 °C to +150 °C junction temperature range with 35 °C/W junction-to-lead thermal resistance. The cathode band indicates polarity, and matte tin-plated leads comply with J-STD-002 solderability requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum non-repetitive reverse voltage before breakdown; defines safe operating limit in flyback/snubber circuits
I_F	1 A - continuous average forward current at T_L = 75 °C; determines steady-state power handling capability
t_rr	35 ns - measured at I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A; enables >1 MHz switching in high-efficiency converters
V_F max	1.30 V @ 1 A, 25 °C - forward conduction loss directly impacts thermal rise and system efficiency
C_J	18 pF @ 1 MHz, 4 V - low junction capacitance reduces capacitive coupling and EMI in high-dV/dt environments
R_θJA	85 °C/W - thermal resistance from junction to ambient; informs heatsinking needs on standard FR-4 PCBs

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	Forward current entry point	Connected to lower-potential node (e.g., switch node in buck converter); must withstand I_FSM = 30 A surge
Cathode	Forward current exit / reverse blocking terminal	Marked by band; connects to higher-potential rail; blocks up to 400 V reverse bias during off-state

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability under humidity and thermal cycling; meets J-STD-020 moisture sensitivity level 1
Super fast recovery (35 ns)	Reduces reverse recovery charge (Q_rr) and associated switching losses in 100 kHz–1 MHz converters
DO-214AC (SMA) package	Standardized footprint compatible with automated SMT placement; 0.060 g weight supports lightweight board design
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS; suitable for environmentally regulated industrial and lighting products

Applications

DC-DC Converter	Switching Inverter
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V output. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during MOSFET off-time; handles 1 A DC load with minimal conduction loss. Use Value: 1.30 V V_F max limits power dissipation to <1.3 W; 35 ns t_rr prevents cross-conduction losses at 500 kHz switching.	Use Scenario: Output stage of 12 V–48 V input AC/DC inverters driving LED arrays or small motors. IC Role / Device Role / Timing Role: Snubber diode clamping voltage spikes across switching transistors during turn-off. Use Value: 400 V V_RRM safely absorbs 350 V transient spikes; 30 A I_FSM withstands repetitive surge events.
LED Driver	Industrial Power Supply
Use Scenario: Constant-current LED driver with active PFC front-end and buck-derived secondary stage. IC Role / Device Role / Timing Role: Output rectifier in post-regulator stage; conducts continuous 1 A forward current. Use Value: Low 18 pF C_J minimizes high-frequency noise coupling into sensitive current-sense circuitry.	Use Scenario: Auxiliary bias supply in telecom or industrial 48 V input systems requiring high reliability. IC Role / Device Role / Timing Role: Input rectifier feeding offline controller IC; operates continuously at 85–150 °C ambient. Use Value: 150 °C T_JMAX and JESD201 Class 2 whisker resistance ensure stable operation over 10+ year field life.

DC-DC Converter

Switching Inverter

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V output.

IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during MOSFET off-time; handles 1 A DC load with minimal conduction loss.

Use Value: 1.30 V V_F max limits power dissipation to <1.3 W; 35 ns t_rr prevents cross-conduction losses at 500 kHz switching.

Use Scenario: Output stage of 12 V–48 V input AC/DC inverters driving LED arrays or small motors.

IC Role / Device Role / Timing Role: Snubber diode clamping voltage spikes across switching transistors during turn-off.

Use Value: 400 V V_RRM safely absorbs 350 V transient spikes; 30 A I_FSM withstands repetitive surge events.

LED Driver

Industrial Power Supply

Use Scenario: Constant-current LED driver with active PFC front-end and buck-derived secondary stage.

IC Role / Device Role / Timing Role: Output rectifier in post-regulator stage; conducts continuous 1 A forward current.

Use Value: Low 18 pF C_J minimizes high-frequency noise coupling into sensitive current-sense circuitry.

Use Scenario: Auxiliary bias supply in telecom or industrial 48 V input systems requiring high reliability.

IC Role / Device Role / Timing Role: Input rectifier feeding offline controller IC; operates continuously at 85–150 °C ambient.

Use Value: 150 °C T_JMAX and JESD201 Class 2 whisker resistance ensure stable operation over 10+ year field life.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR140	V_RRM = 400 V, t_rr = 50 ns, V_F = 1.25 V @ 1 A - slower recovery, slightly lower V_F	Higher reverse recovery loss in >300 kHz designs; acceptable in <200 kHz SMPS	Select when lower cost is prioritized over ultra-fast switching performance
Vishay VS-1EWH04-M3	V_RRM = 400 V, t_rr = 30 ns, V_F = 1.35 V @ 1 A - faster recovery, higher V_F, same DO-214AC package	Better high-frequency efficiency but higher conduction loss at high duty cycles	Select when minimizing switching loss dominates over conduction loss in high-frequency designs

Compared with MUR140 and VS-1EWH04-M3, the ES1G delivers balanced performance: 35 ns t_rr enables efficient 500 kHz operation while maintaining competitive V_F and thermal resistance, making it optimal for cost-sensitive, medium-frequency industrial power supplies.

Availability

ES1G is available at Aetrix Electronics and suitable for DC-DC converters, LED drivers, and industrial power supplies requiring stable component supply and long-term manufacturing continuity.

Supply support for ES1G 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, computing, and consumer markets since 1979.

The ES1G belongs to TSC's ES1x super fast rectifier family, designed specifically for high-efficiency, high-frequency switching power conversion where low trr, controlled V_F, and robust thermal performance are critical.

FAQ

What is the maximum repetitive peak reverse voltage rating for ES1G?

The ES1G has a maximum repetitive peak reverse voltage (V_RRM) of 400 V, verified per Taiwan Semiconductor's O2112 datasheet revision. This rating defines the highest reverse-biased voltage the ES1G can block repeatedly without avalanche breakdown, making it suitable for 350 V DC bus applications with safety margin. Exceeding 400 V risks irreversible junction failure.

What is the forward voltage drop of ES1G at rated current?

The ES1G exhibits a maximum forward voltage (V_F) of 1.30 V at 1 A forward current and 25 °C junction temperature, as specified in the electrical characteristics table. At elevated temperatures (e.g., 125 °C), V_F decreases slightly due to semiconductor physics, but system-level thermal design must ensure the device stays within its 150 °C T_JMAX limit to maintain reliability.

Does ES1G have a defined reverse recovery time, and how is it measured?

Yes, the ES1G has a typical reverse recovery time (t_rr) of 35 ns, measured under standardized conditions: I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This parameter reflects the time required for the ES1G to transition from forward conduction to full reverse blocking, directly impacting switching loss in high-frequency topologies like LLC resonant converters.

What package type does ES1G use, and what are its mechanical features?

The ES1G uses the DO-214AC (SMA) surface-mount package, with matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability-rated molding compound, and cathode polarity indicated by a visible band. Its 0.060 g mass and standardized footprint support high-yield automated assembly in volume production environments.

Is ES1G suitable for automotive applications?

No, ES1G is not qualified for automotive applications. Taiwan Semiconductor explicitly states in its documentation that ES1A–ES1J devices are "not designed for use in medical, life-saving, or life-sustaining applications," and no AEC-Q101 qualification data is published for the ES1G. It is intended for industrial, computing, and consumer power supplies where extended temperature operation and reliability are required but automotive-grade stress testing is not mandated.

ES1G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AC, SMA

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:: 1.3 V @ 1 A

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

Reverse Recovery Time (trr):: 35 ns

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

Capacitance @ Vr, F:: 18pF @ 1V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

ES1G FAQ

1.How can I place an order for ES1G through Aetrix?

Please submit a Request for Quotation (RFQ) for ES1G 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 ES1G reliable?

The price and inventory of ES1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1G is usually 5 days.

3.What payment methods are accepted for ES1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES1G?

ES1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES1G 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 ES1G?

For technical support, including ES1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1G requirements.

6.How does Aetrix verify that ES1G is sourced from the original manufacturer or authorized distributors?

All ES1G 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 ES1G meets industry standards.

7.What is the process for return or replacement of ES1G?

All ES1G units undergo pre-shipment inspection (PSI). If there is an issue with ES1G, 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 ES1G part is unused and in its original packaging.

Return procedure for ES1G:

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…