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 ESH2BAH

Name: ESH2BAH
Brand: Taiwan Semiconductor Corporation
SKU: ESH2BAH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ESH2BAH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: ESH2BAH.pdf

Description:: 25NS, 1A, 100V, ULTRA FAST RECOV

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:15,000

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

Product details

Overview

ESH2BAH from Taiwan Semiconductor is a 1 A, 100 V ultra-fast surface-mount rectifier diode in DO-214AC (SMA) package, featuring 25 ns reverse recovery time, 0.9 V max forward voltage at 1 A, and AEC-Q101 qualification for automotive use in DC-DC converters and freewheeling circuits.

For engineers reviewing the ESH2BAH datasheet, ESH2BAH pinout, ESH2BAH application, or ESH2BAH equivalent, key selection criteria include repetitive peak reverse voltage (100 V), surge current rating (50 A), junction temperature range (–55°C to +175°C), thermal resistance (R_θJL = 20°C/W), and RoHS/halogen-free compliance.

Technical Context

The ESH2BAH is a single-die, unidirectional ultra-fast recovery rectifier optimized for high-frequency switching applications. Its 25 ns trr and low VF (≤0.9 V @ 1 A) minimize conduction and switching losses, while the DO-214AC package supports automated placement and meets J-STD-020 Level 1 moisture sensitivity.

Designed for automotive-grade reliability, the ESH2BAH operates across –55°C to +175°C junction temperature, with 50 A IFSM capability and 20 mJ avalanche energy rating under inductive turn-off conditions-enabling robust snubber and freewheeling operation in harsh environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC-DC output rectification.
I_F	1 A - Continuous average forward current; sets steady-state power handling in automotive lighting drivers.
t_rr	25 ns - Ultra-fast reverse recovery time; reduces switching loss and EMI in >100 kHz converters.
V_F (max)	0.9 V @ 1 A, 25°C - Low forward drop improves system efficiency and thermal margin in space-constrained layouts.
R_θJL	20 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour heat sinking without heatsink.
I_FSM	50 A - Peak non-repetitive surge current; withstands load dump transients in 12 V automotive systems.
Junction Temp	–55°C to +175°C - Extended temperature range supports under-hood deployment in engine control modules.

Pinout & Package

DO-214AC (SMA) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Weight: 0.070 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., switch node in buck converter); polarity must match PCB silkscreen.
Cathode	Forward current exit / reverse blocking terminal	Marked by visible band; ties to higher-potential rail (e.g., output capacitor positive); critical for correct freewheeling path.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements (HTOL, TC, HAST, UHAST), enabling use in safety-critical modules.
Ultra-fast t_rr = 25 ns	Reduces reverse recovery charge (Q_rr) and associated switching loss, improving efficiency in 200–500 kHz DC-DC stages.
Low V_F ≤ 0.9 V @ 1 A	Lowers conduction loss by ~15% vs. standard fast rectifiers, reducing thermal stress on adjacent MOSFETs and PCB copper.
Moisture Sensitivity Level 1	Zero bake requirement before reflow; compatible with standard SMT assembly lines without dry pack handling.
RoHS & halogen-free	Meets IEC 61249-2-21 and EU RoHS Directive; supports green manufacturing and end-of-life compliance for global OEMs.

Applications

DC-DC Converter Output Rectification	Automotive LED Lighting Driver
Use Scenario: Secondary-side rectification in isolated flyback or forward converters powering infotainment displays. IC Role / Device Role / Timing Role: Unidirectional current path with minimal voltage drop and fast turn-off to maintain regulation during high-frequency switching. Use Value: 25 ns t_rr prevents cross-conduction loss with synchronous MOSFETs; 0.9 V V_F sustains >92% efficiency at 1 A load.	Use Scenario: Constant-current LED string driver in headlamp or DRL modules with PWM dimming. IC Role / Device Role / Timing Role: Freewheeling diode across inductive boost choke during PWM off-time. Use Value: 50 A IFSM handles inrush surges during cold start; 175°C T_JMAX ensures reliability near hot LED substrates.
Snubber Network Diode	Engine Control Unit (ECU) Freewheeling
Use Scenario: RCD snubber across primary-side MOSFET in auxiliary power supply of transmission control unit. IC Role / Device Role / Timing Role: Fast clamping of voltage spikes during MOSFET turn-off via low-t_rr, low-C_J path. Use Value: 25 pF C_J minimizes capacitive loading on snubber RC timing; 25 ns t_rr avoids delayed turn-on that degrades spike suppression.	Use Scenario: Freewheeling path for solenoid drivers controlling fuel injectors or valve actuators. IC Role / Device Role / Timing Role: Provides low-impedance return path for inductive kickback when driver IC turns off. Use Value: 20 mJ E_RSM rating absorbs energy from 120 mH inductive loads without avalanche failure; AEC-Q101 ensures field longevity.

DC-DC Converter Output Rectification

Automotive LED Lighting Driver

Use Scenario: Secondary-side rectification in isolated flyback or forward converters powering infotainment displays.

IC Role / Device Role / Timing Role: Unidirectional current path with minimal voltage drop and fast turn-off to maintain regulation during high-frequency switching.

Use Value: 25 ns t_rr prevents cross-conduction loss with synchronous MOSFETs; 0.9 V V_F sustains >92% efficiency at 1 A load.

Use Scenario: Constant-current LED string driver in headlamp or DRL modules with PWM dimming.

IC Role / Device Role / Timing Role: Freewheeling diode across inductive boost choke during PWM off-time.

Use Value: 50 A IFSM handles inrush surges during cold start; 175°C T_JMAX ensures reliability near hot LED substrates.

Snubber Network Diode

Engine Control Unit (ECU) Freewheeling

Use Scenario: RCD snubber across primary-side MOSFET in auxiliary power supply of transmission control unit.

IC Role / Device Role / Timing Role: Fast clamping of voltage spikes during MOSFET turn-off via low-t_rr, low-C_J path.

Use Value: 25 pF C_J minimizes capacitive loading on snubber RC timing; 25 ns t_rr avoids delayed turn-on that degrades spike suppression.

Use Scenario: Freewheeling path for solenoid drivers controlling fuel injectors or valve actuators.

IC Role / Device Role / Timing Role: Provides low-impedance return path for inductive kickback when driver IC turns off.

Use Value: 20 mJ E_RSM rating absorbs energy from 120 mH inductive loads without avalanche failure; AEC-Q101 ensures field longevity.

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-1EWH01-M3/5AT	Same DO-214AC package, 100 V V_RRM, but t_rr = 35 ns (vs. 25 ns), V_F = 1.05 V (vs. 0.9 V).	Higher conduction loss and slower recovery reduce efficiency in >300 kHz designs.	Acceptable where cost is prioritized over peak efficiency; verify thermal margin with higher V_F.
ON Semiconductor MUR110RLG	DO-41 through-hole, 100 V V_RRM, t_rr = 50 ns, V_F = 0.93 V; not AEC-Q101 qualified.	Not suitable for automated SMT lines or under-hood automotive use due to package and qualification gap.	Only for legacy through-hole designs or non-automotive industrial applications requiring identical V_RRM/I_F.

Compared with VS-1EWH01-M3/5AT and MUR110RLG, the ESH2BAH delivers superior high-frequency efficiency and automotive-grade reliability in surface-mount form-making it the preferred choice for new automotive power designs where thermal performance and qualification are mandatory.

Availability

ESH2BAH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC converter output rectification, and ECU freewheeling applications requiring stable component supply, AEC-Q101 compliance, and DO-214AC packaging.

Supply support for ESH2BAH 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-Q101 validation capability.

The ESH2BAH belongs to TSC's ESH2x AH ultra-fast rectifier family, engineered specifically for high-efficiency, high-reliability automotive power conversion where fast recovery, low forward drop, and extended temperature operation are essential.

FAQ

What is the maximum junction temperature rating for the ESH2BAH?

The ESH2BAH has a maximum junction temperature (T_JMAX) of +175°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This rating allows reliable operation in under-hood automotive environments and high-power-density DC-DC converters. The ESH2BAH maintains specified electrical performance within this full range, supported by its 20°C/W junction-to-lead thermal resistance.

Is the ESH2BAH pin-compatible with other parts in the ESH2x AH series?

No-the ESH2BAH shares the same DO-214AC (SMA) package and two-terminal configuration with ESH2CAH and ESH2DAH, but its V_RRM is fixed at 100 V and its marking code is "ESH2BA". While mechanical mounting is identical, electrical ratings differ; substituting ESH2BAH for ESH2DAH (200 V) risks reverse breakdown. Always verify voltage requirements before interchange.

Does the ESH2BAH meet automotive qualification standards?

Yes-the ESH2BAH is explicitly AEC-Q101 qualified per the Taiwan Semiconductor datasheet, covering stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing. This qualification confirms suitability for automotive powertrain, body electronics, and lighting systems where long-term reliability under thermal and vibration stress is required.

What is the reverse recovery time (t_rr) specification for the ESH2BAH?

The ESH2BAH has a maximum reverse recovery time (t_rr) of 25 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This ultra-fast recovery enables efficient operation in high-frequency switching power supplies above 200 kHz. The value is confirmed in the Electrical Specifications table of the official ESH2BAH–ESH2DAH datasheet (Version A2102).

What packaging and reel quantity is available for the ESH2BAH?

The ESH2BAH is supplied in DO-214AC (SMA) package on 7,500-piece tape-and-reel format, as specified in the Ordering Information section of the Taiwan Semiconductor datasheet. The reel complies with EIA-481 standards and supports automated pick-and-place equipment. No alternate packaging (e.g., bulk or ammo pack) is listed for this part number.

ESH2BAH 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):: 100 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 2 A

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

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 1 µA @ 100 V

Capacitance @ Vr, F:: 25pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

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

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

ESH2BAH FAQ

1.How can I place an order for ESH2BAH through Aetrix?

Please submit a Request for Quotation (RFQ) for ESH2BAH 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 ESH2BAH reliable?

The price and inventory of ESH2BAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH2BAH is usually 5 days.

3.What payment methods are accepted for ESH2BAH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH2BAH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ESH2BAH?

ESH2BAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ESH2BAH 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 ESH2BAH?

For technical support, including ESH2BAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH2BAH requirements.

6.How does Aetrix verify that ESH2BAH is sourced from the original manufacturer or authorized distributors?

All ESH2BAH 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 ESH2BAH meets industry standards.

7.What is the process for return or replacement of ESH2BAH?

All ESH2BAH units undergo pre-shipment inspection (PSI). If there is an issue with ESH2BAH, 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 ESH2BAH part is unused and in its original packaging.

Return procedure for ESH2BAH:

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…