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 ES2BFS

Name: ES2BFS
Brand: Taiwan Semiconductor Corporation
SKU: ES2BFS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ES2BFS

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-128

Datasheet:: ES2BFS.pdf

Description:: DIODE GEN PURP 100V 2A SOD128

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:6,543

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

Product details

Overview

ES2BFS from Taiwan Semiconductor is a 2 A, 100 V super fast surface-mount rectifier diode in SOD-128 package, featuring 35 ns reverse recovery time, 0.88 V forward voltage at 2 A/25°C, and 50 A surge current capability. It serves as a freewheeling or output rectifier in high-frequency DC-DC converters requiring low conduction loss and fast switching.

For engineers reviewing the ES2BFS datasheet, ES2BFS pinout, ES2BFS application, or ES2BFS equivalent, key selection criteria include its 100 V V_RRM, 24 °C/W junction-to-lead thermal resistance, SOD-128 footprint compatibility, and verified performance at 125°C junction temperature in switching power supplies.

Technical Context

The ES2BFS is a single-die, glass-passivated silicon PN junction rectifier optimized for high-frequency operation. Its 35 ns trr and low Qrr support efficient operation in SMPS topologies up to several hundred kHz, while the 0.88 V VF at 2 A minimizes conduction losses under nominal load.

Thermally, it delivers 24 °C/W R_θJL when mounted on a 5 mm × 5 mm copper pad, enabling reliable 2 A continuous operation without forced cooling. The SOD-128 package supports automated assembly and meets J-STD-020 Level 1 moisture sensitivity.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for circuit blocking capability in 12–48 V output DC-DC stages.
I_F	2 A - Continuous forward current rating; defines steady-state power handling with appropriate PCB copper area.
t_rr	35 ns - Reverse recovery time; enables stable operation in >200 kHz switching converters with minimal switching loss.
V_F @ 2 A, 25°C	0.88 V - Forward voltage drop; determines conduction loss (1.76 W at 2 A) and thermal design margin.
I_FSM	50 A - Non-repetitive surge current (8.3 ms); supports inrush and fault-current tolerance in power supply inputs.
R_θJL	24 °C/W - Junction-to-lead thermal resistance; allows direct thermal path to PCB copper, critical for compact layout without heatsinks.

Pinout & Package

SOD-128 is a low-profile, surface-mount plastic package with gull-wing leads. Cathode polarity is marked by a band on the device body. Leads are matte tin-plated and solderable per J-STD-002.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in buck converter); requires adequate copper pour for thermal dissipation.
Cathode	Forward current exit / reverse blocking terminal	Marked by band; connects to output rail or ground return; carries full load current and must avoid parasitic inductance in high-di/dt paths.

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and humidity resistance in industrial environments without hermetic sealing.
35 ns reverse recovery time	Reduces switching loss and EMI generation in high-frequency SMPS, enabling smaller output filters.
24 °C/W junction-to-lead thermal resistance	Enables 2 A continuous operation on standard FR4 with 5 mm × 5 mm Cu pad-no thermal vias required.
J-STD-020 Level 1 moisture sensitivity	Allows unlimited floor life and reflow without baking, simplifying SMT line logistics and reducing process risk.

Applications

DC-DC Converters	Switching Inverters
Use Scenario: Secondary-side synchronous rectification in isolated 12 V to 5 V/3.3 V buck-derived converters. IC Role / Device Role / Timing Role: Output rectifier replacing Schottky diodes where higher V_RRM margin and lower cost are prioritized over ultra-low V_F. Use Value: 100 V V_RRM provides 2× safety margin over 48 V input transients; 0.88 V V_F yields <1.8 W loss at 2 A, compatible with passive cooling.	Use Scenario: Freewheeling path in half-bridge motor drive inverters for 24–48 V battery-powered tools. IC Role / Device Role / Timing Role: Clamp diode across inductive loads to suppress voltage spikes during MOSFET turn-off. Use Value: 35 ns t_rr limits voltage overshoot during rapid current reversal; 50 A I_FSM withstands motor stall currents.
AC-DC Adapters	Industrial Power Supplies
Use Scenario: Output rectification in compact 12 V/2 A wall adapters using flyback topology. IC Role / Device Role / Timing Role: Primary-side snubber or secondary-side rectifier depending on topology; operates at 65–130 kHz switching frequency. Use Value: SOD-128 footprint fits tight board space; RoHS/halogen-free compliance meets global regulatory requirements.	Use Scenario: Auxiliary bias supply rectification in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Isolated auxiliary rail rectifier delivering 5 V/1 A to control circuitry from main 24 V bus. Use Value: -55°C to +150°C operating range ensures functionality in unheated enclosures; 0.028 g weight reduces mechanical stress on PCB.

DC-DC Converters

Switching Inverters

Use Scenario: Secondary-side synchronous rectification in isolated 12 V to 5 V/3.3 V buck-derived converters.

IC Role / Device Role / Timing Role: Output rectifier replacing Schottky diodes where higher V_RRM margin and lower cost are prioritized over ultra-low V_F.

Use Value: 100 V V_RRM provides 2× safety margin over 48 V input transients; 0.88 V V_F yields <1.8 W loss at 2 A, compatible with passive cooling.

Use Scenario: Freewheeling path in half-bridge motor drive inverters for 24–48 V battery-powered tools.

IC Role / Device Role / Timing Role: Clamp diode across inductive loads to suppress voltage spikes during MOSFET turn-off.

Use Value: 35 ns t_rr limits voltage overshoot during rapid current reversal; 50 A I_FSM withstands motor stall currents.

AC-DC Adapters

Industrial Power Supplies

Use Scenario: Output rectification in compact 12 V/2 A wall adapters using flyback topology.

IC Role / Device Role / Timing Role: Primary-side snubber or secondary-side rectifier depending on topology; operates at 65–130 kHz switching frequency.

Use Value: SOD-128 footprint fits tight board space; RoHS/halogen-free compliance meets global regulatory requirements.

Use Scenario: Auxiliary bias supply rectification in programmable logic controller (PLC) power modules.

IC Role / Device Role / Timing Role: Isolated auxiliary rail rectifier delivering 5 V/1 A to control circuitry from main 24 V bus.

Use Value: -55°C to +150°C operating range ensures functionality in unheated enclosures; 0.028 g weight reduces mechanical stress on PCB.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R01	100 V V_RRM, 2 A I_F, 30 ns t_rr, TO-220AC package	Through-hole mounting; higher thermal mass but larger footprint and manual assembly requirement	Select when board-level reflow is unavailable or higher surge robustness (60 A I_FSM) is needed.
MBR2100F	100 V V_RRM, 2 A I_F, Schottky architecture, 0.72 V V_F @ 2 A, SOD-128 package	Lower forward drop but higher leakage (100 µA @ 100 V) and limited to ≤125°C operation	Select when minimizing conduction loss is critical and ambient temperature stays below 105°C.

Compared with STTH2R01 and MBR2100F, the ES2BFS offers the optimal balance of SMD compatibility, 150°C operation, and 35 ns switching speed-making it preferred for thermally constrained, high-reliability industrial DC-DC designs where Schottky leakage or through-hole assembly are unacceptable.

Availability

ES2BFS is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial power supplies requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for ES2BFS 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, specializing in rectifiers, TVS diodes, MOSFETs, and power ICs.

The ES2BFS belongs to TSC's ES2xFS super fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power conversion in space-constrained industrial and computing applications.

FAQ

What is the maximum junction temperature rating for ES2BFS?

The ES2BFS has a maximum junction temperature (T_JMAX) of +150°C, validated per absolute maximum ratings. This allows reliable operation in sealed enclosures or high-ambient environments when used with the specified 5 mm × 5 mm copper pad. Derating begins above 125°C per the forward current derating curve in the ES2BFS datasheet.

Does ES2BFS have a cathode marking, and how is polarity identified?

Yes, ES2BFS uses a visible cathode band on the black molded body to indicate polarity. The banded end is the cathode terminal, and the opposite end is the anode. This marking complies with industry-standard SOD-128 orientation and is clearly shown in the marking diagram of the ES2BFS datasheet.

What is the reverse recovery time (t_rr) of ES2BFS, and under what test conditions is it measured?

The ES2BFS reverse recovery time is 35 ns, measured under the condition: I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A. This value is the maximum specified in the electrical characteristics table and reflects performance at 25°C ambient, supporting stable operation in converters switching up to 500 kHz.

Is ES2BFS RoHS compliant and halogen-free?

Yes, ES2BFS is RoHS compliant and halogen-free per IEC 61249-2-21. These compliance statements are explicitly confirmed in the FEATURES section of the official ES2BFS datasheet and verified via TSC's material declarations and third-party testing reports.

What is the moisture sensitivity level (MSL) of ES2BFS, and does it require baking before reflow?

The ES2BFS has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it has unlimited floor life and does not require baking prior to reflow soldering. This eliminates process steps and reduces manufacturing risk in high-volume SMT lines handling the ES2BFS.

ES2BFS Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-128

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:: 950 mV @ 2 A

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

Reverse Recovery Time (trr):: 35 ns

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

Capacitance @ Vr, F:: 18pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-128

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

ES2BFS FAQ

1.How can I place an order for ES2BFS through Aetrix?

Please submit a Request for Quotation (RFQ) for ES2BFS 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 ES2BFS reliable?

The price and inventory of ES2BFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2BFS is usually 5 days.

3.What payment methods are accepted for ES2BFS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2BFS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES2BFS?

ES2BFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES2BFS 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 ES2BFS?

For technical support, including ES2BFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2BFS requirements.

6.How does Aetrix verify that ES2BFS is sourced from the original manufacturer or authorized distributors?

All ES2BFS 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 ES2BFS meets industry standards.

7.What is the process for return or replacement of ES2BFS?

All ES2BFS units undergo pre-shipment inspection (PSI). If there is an issue with ES2BFS, 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 ES2BFS part is unused and in its original packaging.

Return procedure for ES2BFS:

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…