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 ES1F

Name: ES1F
Brand: Taiwan Semiconductor Corporation
SKU: ES1F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ES1F

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: ES1F.pdf

Description:: DIODE GEN PURP 300V 1A DO214AC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:22,422

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

Product details

Overview

ES1F from Taiwan Semiconductor is a 300 V repetitive peak reverse voltage, 1 A average forward current, super fast recovery (35 ns) surface-mount rectifier in DO-214AC (SMA) package, used for freewheeling and snubber functions in DC-DC converters and switching inverters.

For engineers reviewing the ES1F datasheet, ES1F pinout, ES1F application, or ES1F equivalent, key selection criteria include its 300 V V_RRM, 1.30 V max forward voltage at 1 A, 30 A IFSM surge rating, 18 pF junction capacitance, and thermal resistance of 35 °C/W (junction-to-lead).

Technical Context

The ES1F is a single-die, glass-passivated silicon PN junction rectifier optimized for high-frequency switching applications. Its 35 ns reverse recovery time enables efficient operation in SMPS topologies operating above 100 kHz, while its DO-214AC package supports automated placement and meets J-STD-020 Level 1 moisture sensitivity.

It operates across -55 °C to +150 °C junction temperature range with 5 µA max reverse leakage at 25 °C and 100 µA at 125 °C. Thermal performance is defined by R_θJL = 35 °C/W and R_θJA = 85 °C/W, supporting compact board layouts without forced airflow.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	300 V - maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback or boost snubber circuits
I_F	1 A - continuous average forward current; sets steady-state power handling in low-power DC-DC stages
t_rr	35 ns - measured at I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A; enables >200 kHz switching with low recovery loss
V_F (max)	1.30 V @ 1 A, 25 °C - forward conduction loss directly impacts efficiency in 12 V–48 V output rails
C_J	18 pF @ 1 MHz, 4 V - low junction capacitance minimizes switching node ringing in high-dV/dt environments
I_FSM	30 A - peak surge rating for 8.3 ms half-sine; withstands inrush and transient overloads in industrial power supplies
R_θJL	35 °C/W - junction-to-lead thermal resistance; enables direct copper pour heatsinking on PCB for thermal management

Pinout & Package

Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band. Matte tin-plated leads, UL 94V-0 molding compound, 0.060 g typical weight.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., switch node in buck converter); must handle full load current and surge
Cathode	Forward current exit / reverse blocking terminal	Connected to higher-potential rail (e.g., output capacitor positive); polarity marking critical for correct orientation

Key Features

Feature	Design Value
Super fast recovery (35 ns)	Reduces reverse recovery charge (Q_rr) and associated switching losses in high-frequency SMPS designs
Glass passivated junction	Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments
DO-214AC (SMA) package	Enables high-density layout and compatibility with standard SMT pick-and-place equipment (IPC-7351 compliant footprint)
J-STD-020 Level 1 moisture sensitivity	Allows unlimited floor life before reflow; eliminates baking requirement and simplifies manufacturing logistics

Applications

DC-DC Converters	Switching Inverters
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V at ≤1 A. IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; clamps transformer reset voltage. Use Value: 35 ns t_rr and 1.30 V V_F minimize conduction and recovery losses, improving efficiency by ~1.2% vs. standard FR107 at 100 kHz.	Use Scenario: Output stage freewheeling path in 12 V–48 V input H-bridge inverters for LED drivers and motor control. IC Role / Device Role / Timing Role: Bidirectional snubber clamp during PWM dead-time; absorbs inductive kickback energy. Use Value: 300 V V_RRM and 30 A I_FSM ensure robustness against voltage spikes up to 250 V with 10 µs duration.
Lighting Power Supplies	Snubber Networks
Use Scenario: Input rectification and output rectification in constant-current LED drivers for commercial lighting. IC Role / Device Role / Timing Role: AC input bridge leg or secondary synchronous rectifier replacement where cost and size are constrained. Use Value: DO-214AC footprint allows <12 mm² board area; 150 °C T_JMAX supports operation in enclosed luminaires up to 85 °C ambient.	Use Scenario: RC snubber across MOSFET drain-source or relay contacts in industrial control modules. IC Role / Device Role / Timing Role: Fast turn-off path for snubber capacitor discharge; prevents voltage overshoot during switching transitions. Use Value: Low C_J (18 pF) avoids resonance with snubber resistor; 35 ns t_rr ensures clean zero-voltage switching initiation.

DC-DC Converters

Switching Inverters

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V at ≤1 A.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; clamps transformer reset voltage.

Use Value: 35 ns t_rr and 1.30 V V_F minimize conduction and recovery losses, improving efficiency by ~1.2% vs. standard FR107 at 100 kHz.

Use Scenario: Output stage freewheeling path in 12 V–48 V input H-bridge inverters for LED drivers and motor control.

IC Role / Device Role / Timing Role: Bidirectional snubber clamp during PWM dead-time; absorbs inductive kickback energy.

Use Value: 300 V V_RRM and 30 A I_FSM ensure robustness against voltage spikes up to 250 V with 10 µs duration.

Lighting Power Supplies

Snubber Networks

Use Scenario: Input rectification and output rectification in constant-current LED drivers for commercial lighting.

IC Role / Device Role / Timing Role: AC input bridge leg or secondary synchronous rectifier replacement where cost and size are constrained.

Use Value: DO-214AC footprint allows <12 mm² board area; 150 °C T_JMAX supports operation in enclosed luminaires up to 85 °C ambient.

Use Scenario: RC snubber across MOSFET drain-source or relay contacts in industrial control modules.

IC Role / Device Role / Timing Role: Fast turn-off path for snubber capacitor discharge; prevents voltage overshoot during switching transitions.

Use Value: Low C_J (18 pF) avoids resonance with snubber resistor; 35 ns t_rr ensures clean zero-voltage switching initiation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06U (STMicroelectronics)	Same V_RRM (600 V), but 600 V version; t_rr = 30 ns, V_F = 1.25 V @ 1 A; DO-214AC package	Higher voltage margin suits universal-input PFC front-ends; tighter t_rr benefits >300 kHz designs	Select when 600 V blocking or sub-30 ns recovery is required; not drop-in for 300 V systems due to over-spec
MBR130LSFT1G (ON Semiconductor)	Schottky architecture; V_F = 0.45 V @ 1 A, but V_RRM = 30 V only; same DO-214AC package	Lower V_F improves light-load efficiency, but unsuitable for >30 V reverse stress	Use only in low-voltage (<30 V) DC-DC outputs; not interchangeable where 300 V blocking is mandatory

Compared with STTH1R06U and MBR130LSFT1G, the ES1F provides optimal balance of 300 V rating, 35 ns recovery, and 1.30 V forward drop in cost-sensitive industrial and lighting applications-neither over-specified nor voltage-limited.

Availability

ES1F is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and lighting power supplies requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.

Supply support for ES1F 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 ES1F belongs to TSC's ES1x super fast rectifier family, designed specifically for high-efficiency, high-frequency switching power conversion in space-constrained and thermally demanding applications.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for ES1F?

The ES1F has a maximum repetitive peak reverse voltage (V_RRM) of 300 V, as specified in the Absolute Maximum Ratings table. This value defines the highest reverse voltage the device can block continuously without breakdown under normal operating conditions, and it is validated per JEDEC test standards. The ES1F is rated for use in circuits where reverse transients do not exceed this threshold.

What is the forward voltage (V_F) of ES1F at 1 A and 25 °C?

The ES1F exhibits a maximum forward voltage (V_F) of 1.30 V at 1 A forward current and 25 °C junction temperature, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the worst-case conduction loss for thermal and efficiency calculations in DC-DC output stages.

Does ES1F have a RoHS-compliant and halogen-free construction?

Yes, the ES1F is RoHS compliant and halogen-free according to IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002 solderability requirements. These attributes are confirmed in the official Taiwan Semiconductor documentation for the ES1x series.

What is the reverse recovery time (t_rr) specification for ES1F?

The ES1F has a 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 is critical for minimizing switching losses in high-frequency power converters and is verified using the test circuit shown in Figure 6 of the ES1A–ES1J datasheet.

What package type does ES1F use, and what are its mechanical features?

The ES1F uses the DO-214AC (SMA) surface-mount package. Key mechanical features include a cathode band for polarity identification, matte tin-plated leads, JESD 201 Class 2 whisker resistance, and a weight of approximately 0.060 g. The package complies with IPC-7351 footprint guidelines and supports automated placement per J-STD-020 Level 1.

ES1F 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):: 300 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 @ 300 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

ES1F FAQ

1.How can I place an order for ES1F through Aetrix?

Please submit a Request for Quotation (RFQ) for ES1F 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 ES1F reliable?

The price and inventory of ES1F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1F is usually 5 days.

3.What payment methods are accepted for ES1F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES1F?

ES1F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES1F 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 ES1F?

For technical support, including ES1F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1F requirements.

6.How does Aetrix verify that ES1F is sourced from the original manufacturer or authorized distributors?

All ES1F 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 ES1F meets industry standards.

7.What is the process for return or replacement of ES1F?

All ES1F units undergo pre-shipment inspection (PSI). If there is an issue with ES1F, 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 ES1F part is unused and in its original packaging.

Return procedure for ES1F:

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…