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

Taiwan Semiconductor Corporation ES3F R7G

Name: ES3F R7G
Brand: Taiwan Semiconductor Corporation
SKU: ES3F R7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES3F R7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: ES3F R7G.pdf

Description:: DIODE GEN PURP 300V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:3,425

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Product details

Overview

ES3F R7G from Taiwan Semiconductor is a 3A, 400V super fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 35ns reverse recovery time, 1.30V max forward voltage at 3A/25°C, and 100A peak surge current - used in high-frequency switching mode power supplies for telecom and computing.

For engineers reviewing the ES3F R7G datasheet, ES3F R7G pinout, ES3F R7G application, or ES3F R7G equivalent, key selection criteria include V_RRM = 400V, I_F = 3A, t_rr = 35ns, thermal resistance R_θJA = 47°C/W, and DO-214AB mechanical compatibility with automated SMT assembly.

Technical Context

This single-die silicon rectifier uses glass-passivated junction technology to achieve stable performance across -55°C to +150°C junction temperature range. Its super-fast recovery enables efficient operation in 50–500 kHz SMPS topologies where low switching loss and minimal reverse recovery charge are critical.

The device exhibits 30pF junction capacitance at 1MHz/4V and maintains ≤10µA reverse leakage at 25°C - enabling low-noise freewheeling and snubberless flyback designs. Polarity is marked by cathode band on the DO-214AB case.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum repetitive reverse blocking voltage; defines safe operating limit in bridge or freewheeling configurations
I_F	3 A continuous - average forward current rating at T_L = 75°C; determines heatsink-free power handling in compact layouts
t_rr	35 ns - reverse recovery time under IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables high-frequency (>200 kHz) converter operation with low EMI
V_F max	1.30 V at 3A/25°C - forward voltage drop; directly impacts conduction loss and thermal rise in DC-DC output stages
R_θJA	47 °C/W - junction-to-ambient thermal resistance; sets baseline for PCB copper area and airflow requirements in sealed enclosures
C_J	30 pF at 1 MHz/4 V - junction capacitance; affects high-frequency ringing and gate drive interaction in synchronous rectifier circuits

Pinout & Package

DO-214AB (SMC) surface-mount package with matte tin-plated leads, UL 94V-0 molding compound, and cathode polarity indicated by a visible band. Weight: 0.210 g.

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 100A surge without bond wire failure
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or ground return; handles full V_RRM during off-state with <10µA leakage

Key Features

Feature	Design Value
Glass passivated junction	Ensures long-term reliability under humidity and thermal cycling; meets J-STD-020 moisture sensitivity level 1
Super fast recovery (35 ns)	Reduces switching losses and EMI in >100 kHz converters compared to standard fast rectifiers (≥100 ns)
DO-214AB (SMC) package	Enables automated pick-and-place; supports 3,000 pcs/reel tape-and-reel delivery; compatible with IPC-7351B footprint
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU; suitable for consumer and industrial end-equipment

Applications

Telecom AC-DC Adapters	Server VRM Output Rectification
Use Scenario: Secondary-side rectification in 65–300W offline adapters powering baseband units and optical line terminals. IC Role / Device Role / Timing Role: Primary unidirectional power conversion element; replaces slower diodes to reduce conduction and switching losses. Use Value: 1.30V V_F and 35ns t_rr improve efficiency by ≥0.8% at full load versus standard fast rectifiers, lowering thermal stress on PCB.	Use Scenario: Output synchronous rectifier replacement in multiphase 12V→1.2V VRMs for AI accelerators and CPU power delivery. IC Role / Device Role / Timing Role: Freewheeling diode during high-side FET dead-time; clamps inductive kickback with minimal reverse recovery overshoot. Use Value: 30pF C_J and low Q_rr suppress voltage spikes at 500kHz+ switching, reducing need for snubbers and improving transient response.
Industrial PLC Power Supplies	Automotive Infotainment DC-DC
Use Scenario: Input rectification stage in wide-input (85–265VAC) DIN-rail power modules for programmable logic controllers. IC Role / Device Role / Timing Role: Bridge leg component in full-wave rectifier; sustains 100A non-repetitive surge during cold-start inrush. Use Value: 150°C max junction temperature and JESD201 Class 2 whisker resistance allow reliable operation in unventilated control cabinets up to 70°C ambient.	Use Scenario: Isolated auxiliary supply rectification in head unit power trees requiring AEC-Q200 alignment. IC Role / Device Role / Timing Role: High-voltage secondary rectifier in 12V→5V/3.3V flyback converters; blocks 400V reverse transients from load dump events. Use Value: 400V V_RRM provides 2× margin over ISO 7637-2 Pulse 5a (120V), eliminating need for external TVS clamping in cost-sensitive designs.

Telecom AC-DC Adapters

Server VRM Output Rectification

Use Scenario: Secondary-side rectification in 65–300W offline adapters powering baseband units and optical line terminals.

IC Role / Device Role / Timing Role: Primary unidirectional power conversion element; replaces slower diodes to reduce conduction and switching losses.

Use Value: 1.30V V_F and 35ns t_rr improve efficiency by ≥0.8% at full load versus standard fast rectifiers, lowering thermal stress on PCB.

Use Scenario: Output synchronous rectifier replacement in multiphase 12V→1.2V VRMs for AI accelerators and CPU power delivery.

IC Role / Device Role / Timing Role: Freewheeling diode during high-side FET dead-time; clamps inductive kickback with minimal reverse recovery overshoot.

Use Value: 30pF C_J and low Q_rr suppress voltage spikes at 500kHz+ switching, reducing need for snubbers and improving transient response.

Industrial PLC Power Supplies

Automotive Infotainment DC-DC

Use Scenario: Input rectification stage in wide-input (85–265VAC) DIN-rail power modules for programmable logic controllers.

IC Role / Device Role / Timing Role: Bridge leg component in full-wave rectifier; sustains 100A non-repetitive surge during cold-start inrush.

Use Value: 150°C max junction temperature and JESD201 Class 2 whisker resistance allow reliable operation in unventilated control cabinets up to 70°C ambient.

Use Scenario: Isolated auxiliary supply rectification in head unit power trees requiring AEC-Q200 alignment.

IC Role / Device Role / Timing Role: High-voltage secondary rectifier in 12V→5V/3.3V flyback converters; blocks 400V reverse transients from load dump events.

Use Value: 400V V_RRM provides 2× margin over ISO 7637-2 Pulse 5a (120V), eliminating need for external TVS clamping in cost-sensitive designs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-ES3FHM3/45-E3	V_RRM = 400V, t_rr = 35ns, but VF = 1.25V max (slightly lower conduction loss); DO-214AB, same marking orientation	Same PCB footprint; tighter V_F tolerance supports higher-efficiency designs where thermal margin is constrained	Preferred when optimizing for <1.25V V_F at 3A without changing layout
ON Semiconductor MUR340RLG	V_RRM = 400V, t_rr = 50ns (slower), V_F = 1.3V max; same I_F/I_FSM, DO-214AB package	Higher t_rr increases switching loss above 200kHz; acceptable in <150kHz industrial SMPS	Select when cost sensitivity outweighs high-frequency efficiency needs

Compared with ES3F R7G, VS-ES3FHM3/45-E3 offers marginally better conduction efficiency, while MUR340RLG trades 15ns slower recovery for broader legacy design support - both require no PCB changes but differ in thermal and EMI behavior at >250 kHz.

Availability

ES3F R7G is available at Aetrix Electronics and suitable for telecom AC-DC adapters, server VRM output rectification, and industrial PLC power supplies requiring stable component supply, consistent DO-214AB sourcing, and verified 400V/3A super fast recovery performance.

Supply support for ES3F R7G 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 telecom markets since 1979.

The ES3x series was designed specifically for high-frequency switching power conversion - emphasizing low t_rr, stable V_F, and robust thermal performance in space-constrained SMT applications.

FAQ

What is the maximum junction temperature rating for ES3F R7G?

The ES3F R7G has a maximum junction temperature (T_J) of +150°C and a storage temperature range of -55°C to +150°C. This rating allows reliable operation in enclosed industrial power supplies and telecom equipment where ambient temperatures reach 70°C, provided thermal design respects the R_θJA = 47°C/W specification. The ES3F R7G must not exceed this limit during steady-state or transient conditions.

Does ES3F R7G support automated SMT placement?

Yes, ES3F R7G is optimized for automated placement with its DO-214AB (SMC) package, matte tin-plated leads compliant with J-STD-002, and moisture sensitivity level 1 per J-STD-020. It ships in 3,000-piece tape-and-reel format compatible with standard pick-and-place machines. The ES3F R7G's standardized footprint and cathode band marking ensure accurate orientation during assembly.

What is the reverse recovery time (t_rr) test condition for ES3F R7G?

The reverse recovery time of 35 ns for ES3F R7G is measured under IF = 0.5A, IR = 1.0A, and Irr = 0.25A, per the manufacturer's electrical specifications table. This condition reflects real-world switching behavior in high-frequency converters. The ES3F R7G maintains this t_rr value across its rated temperature range, supporting designs targeting >200 kHz operation.

Is ES3F R7G halogen-free and RoHS compliant?

Yes, ES3F R7G is fully RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. This compliance makes ES3F R7G suitable for consumer electronics and industrial equipment sold in EU, China, and other regulated markets. The ES3F R7G documentation confirms full alignment with Directive 2011/65/EU.

How does the forward voltage of ES3F R7G compare across temperature?

The ES3F R7G specifies V_F ≤ 1.30 V at 3A and 25°C; it increases predictably with junction temperature - typically reaching ~1.15 V at 125°C due to negative temperature coefficient of silicon PN junctions. This behavior is documented in Figure 4 (Typical Forward Characteristics) of the ES3x datasheet. Designers using ES3F R7G should apply derating curves from Fig.1 when calculating conduction loss at elevated T_J.

ES3F R7G 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):: 300 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 3 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 300 V

Capacitance @ Vr, F:: 30pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

ES3F R7G FAQ

1.How can I place an order for ES3F R7G through Aetrix?

Please submit a Request for Quotation (RFQ) for ES3F R7G 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 ES3F R7G reliable?

The price and inventory of ES3F R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3F R7G is usually 5 days.

3.What payment methods are accepted for ES3F R7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3F R7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES3F R7G?

ES3F R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES3F R7G 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 ES3F R7G?

For technical support, including ES3F R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3F R7G requirements.

6.How does Aetrix verify that ES3F R7G is sourced from the original manufacturer or authorized distributors?

All ES3F R7G 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 ES3F R7G meets industry standards.

7.What is the process for return or replacement of ES3F R7G?

All ES3F R7G units undergo pre-shipment inspection (PSI). If there is an issue with ES3F R7G, 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 ES3F R7G part is unused and in its original packaging.

Return procedure for ES3F R7G:

1.Submit a request within 90 days.

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

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