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

Taiwan Semiconductor Corporation ES1D R3G

Name: ES1D R3G
Brand: Taiwan Semiconductor Corporation
SKU: ES1D R3G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES1D R3G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: ES1D R3G.pdf

Description:: DIODE GEN PURP 200V 1A DO214AC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ES1D R3G from Taiwan Semiconductor is a 1 A, 200 V super fast recovery surface-mount rectifier diode in DO-214AC (SMA) package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 1 A, and 30 A peak surge current - used for freewheeling and snubber circuits in DC-DC converters.

For engineers reviewing the ES1D R3G datasheet, ES1D R3G pinout, ES1D R3G application, or ES1D R3G equivalent, key selection criteria include V_RRM = 200 V, I_F = 1 A, t_rr = 35 ns, thermal resistance R_θJA = 85 °C/W, and DO-214AC mechanical compatibility with automated SMT placement.

Technical Context

This single-die, unidirectional silicon rectifier uses glass-passivated junction technology to achieve stable high-speed switching performance across -55°C to +150°C operating range. Its low Q_rr and fast t_rr minimize switching losses in high-frequency power conversion topologies.

The device operates with cathode-band polarity indication, matte tin-plated leads compliant with J-STD-002 solderability, and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards for reliability in industrial-grade PCB assemblies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - maximum repetitive reverse voltage before breakdown; sets safe operating limit in 200 V-rated DC-DC output stages
I_F	1 A continuous - average forward current rating defining steady-state conduction capability in freewheeling paths
t_rr	35 ns - reverse recovery time measured at I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A; enables >1 MHz switching in SMPS
V_F	0.95 V @ 1 A, 25°C - forward voltage drop directly impacts conduction loss and thermal rise in compact layouts
R_θJA	85 °C/W - junction-to-ambient thermal resistance under standard JEDEC test board conditions; guides heatsinking requirements
I_FSM	30 A @ 8.3 ms - non-repetitive surge rating supporting transient overload tolerance during startup or fault events
C_J	16 pF @ 1 MHz, 4 V - junction capacitance affecting high-frequency noise coupling and EMI filter design

Pinout & Package

Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration with cathode band marking. Weight: 0.060 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 handle full I_F and I_FSM
Cathode	Forward current exit point	Marked by band; connects to higher-potential rail (e.g., output capacitor positive); defines polarity-sensitive placement

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable leakage current (<5 µA @ 25°C) and long-term reliability under humidity and thermal cycling
Super fast recovery (35 ns)	Reduces switching loss and EMI generation compared to standard rectifiers in 300–1000 kHz converters
Moisture sensitivity level 1	Eliminates bake requirement prior to reflow; supports direct use in J-STD-020-compliant SMT lines
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated industrial and consumer end equipment
DO-214AC (SMA) package	Standardized footprint compatible with automated pick-and-place and reflow profiles; supports high-density board layouts

Applications

DC-DC Converter Output Rectification	Snubber Network Clamping
Use Scenario: Used as secondary-side rectifier in isolated flyback or forward converters delivering 5–24 V at up to 1 A. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer AC output to regulated DC; timing role defined by t_rr-driven switching node ringing suppression. Use Value: 0.95 V V_F minimizes conduction loss; 35 ns t_rr reduces voltage overshoot and improves efficiency above 300 kHz.	Use Scenario: Placed across MOSFET drain-source or transformer primary to absorb inductive energy spikes. IC Role / Device Role / Timing Role: Clamp diode conducting only during voltage transients; fast t_rr ensures rapid turn-off after spike decay. Use Value: Low C_J (16 pF) avoids slowing snubber RC time constant; 30 A I_FSM withstands repeated surge events.
Freewheeling Path in Buck Regulators	Lighting Driver Flyback Secondary
Use Scenario: Completes current path when high-side switch turns off in step-down regulators powering microcontrollers or sensors. IC Role / Device Role / Timing Role: Freewheeling diode maintaining continuous inductor current; t_rr directly affects minimum on-time and light-load stability. Use Value: 35 ns t_rr prevents reverse recovery current from interfering with next switching cycle, enabling stable operation down to 5% duty cycle.	Use Scenario: Rectifies high-voltage, low-current output in LED driver flyback transformers (e.g., 200 V, 150 mA). IC Role / Device Role / Timing Role: High-V_RRM rectifier handling repetitive 200 V reverse bias while conducting pulsed forward current. Use Value: 200 V V_RRM provides 2× safety margin over typical 100 V reflected output; glass passivation ensures long life under thermal stress.

DC-DC Converter Output Rectification

Snubber Network Clamping

Use Scenario: Used as secondary-side rectifier in isolated flyback or forward converters delivering 5–24 V at up to 1 A.

IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer AC output to regulated DC; timing role defined by t_rr-driven switching node ringing suppression.

Use Value: 0.95 V V_F minimizes conduction loss; 35 ns t_rr reduces voltage overshoot and improves efficiency above 300 kHz.

Use Scenario: Placed across MOSFET drain-source or transformer primary to absorb inductive energy spikes.

IC Role / Device Role / Timing Role: Clamp diode conducting only during voltage transients; fast t_rr ensures rapid turn-off after spike decay.

Use Value: Low C_J (16 pF) avoids slowing snubber RC time constant; 30 A I_FSM withstands repeated surge events.

Freewheeling Path in Buck Regulators

Lighting Driver Flyback Secondary

Use Scenario: Completes current path when high-side switch turns off in step-down regulators powering microcontrollers or sensors.

IC Role / Device Role / Timing Role: Freewheeling diode maintaining continuous inductor current; t_rr directly affects minimum on-time and light-load stability.

Use Value: 35 ns t_rr prevents reverse recovery current from interfering with next switching cycle, enabling stable operation down to 5% duty cycle.

Use Scenario: Rectifies high-voltage, low-current output in LED driver flyback transformers (e.g., 200 V, 150 mA).

IC Role / Device Role / Timing Role: High-V_RRM rectifier handling repetitive 200 V reverse bias while conducting pulsed forward current.

Use Value: 200 V V_RRM provides 2× safety margin over typical 100 V reflected output; glass passivation ensures long life under thermal stress.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R02U (STMicroelectronics)	V_RRM = 200 V, t_rr = 30 ns, V_F = 0.92 V @ 1 A - slightly faster and lower V_F, but DO-214AA (SMB) package	Same V_RRM/I_F class; requires PCB pad revision due to larger SMB footprint and different thermal profile	Select if tighter t_rr and lower V_F justify layout change and qualification effort
SB120 (ON Semiconductor)	V_RRM = 200 V, t_rr = 50 ns, V_F = 0.97 V @ 1 A - slower recovery, same DO-214AC package	Compatible footprint and assembly process; acceptable where <50 ns t_rr suffices and cost is prioritized	Choose for drop-in replacement where 35 ns is not critical and supply chain diversification is needed

Compared with STTH1R02U and SB120, ES1D R3G offers balanced performance: faster than SB120 (35 vs. 50 ns) with identical DO-214AC fit, yet more cost-effective than STTH1R02U despite slightly higher V_F and t_rr.

Availability

ES1D R3G is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, freewheeling paths, and lighting drivers requiring stable component supply with full traceability and volume scalability.

Supply support for ES1D R3G 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 ES1x series was designed specifically for high-efficiency, high-frequency power conversion systems where fast recovery, low forward drop, and robust thermal performance are essential - targeting cost-sensitive yet reliability-driven applications.

FAQ

What is the maximum junction temperature rating for ES1D R3G?

The ES1D R3G has a maximum junction temperature (T_J) of +150°C, with an operational range from -55°C to +150°C. This rating allows reliable use in enclosed industrial power supplies and automotive under-hood auxiliary converters where ambient temperatures exceed 85°C. The device's R_θJA of 85 °C/W must be considered alongside PCB copper area and airflow to ensure T_J remains within limit under full I_F load.

Does ES1D R3G support lead-free reflow soldering?

Yes, ES1D R3G supports lead-free reflow soldering per J-STD-002. Its matte tin-plated leads are fully compatible with standard Pb-free reflow profiles (peak 260°C), and its moisture sensitivity level is rated at Level 1 per J-STD-020 - meaning no pre-bake is required before assembly. The DO-214AC package body meets UL 94V-0 flammability requirements, ensuring process robustness.

What is the reverse leakage current specification for ES1D R3G at elevated temperature?

At T_J = 125°C and rated V_R, ES1D R3G exhibits a maximum reverse leakage current (I_R) of 100 µA. At 25°C, it is limited to 5 µA. This low leakage supports stable operation in high-impedance snubber or hold-up circuits where minimal standby power loss is critical, especially in energy-efficient lighting and IoT power modules.

Is ES1D R3G pin-compatible with other devices in the ES1x family?

Yes, all ES1x devices including ES1D R3G share identical DO-214AC (SMA) package dimensions, pinout, and polarity marking (cathode band). They differ only in V_RRM (50–600 V) and related parameters like V_F and C_J. This allows direct substitution within the same voltage class without PCB changes - for example, ES1D R3G can replace ES1C or ES1F only if system-level V_RRM and t_rr requirements align.

How does the 35 ns reverse recovery time of ES1D R3G impact EMI in switching power supplies?

The 35 ns t_rr of ES1D R3G reduces high-frequency ringing amplitude at the switch node by minimizing reverse recovery charge (Q_rr). In buck or flyback converters operating above 300 kHz, this directly lowers broadband EMI emissions - particularly in the 30–100 MHz range - easing compliance with CISPR-22/32 Class B limits. Faster recovery also decreases associated gate-drive losses in synchronous rectifier control schemes.

ES1D R3G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 1 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 200 V

Capacitance @ Vr, F:: 16pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

ES1D R3G FAQ

1.How can I place an order for ES1D R3G through Aetrix?

Please submit a Request for Quotation (RFQ) for ES1D R3G 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 ES1D R3G reliable?

The price and inventory of ES1D R3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1D R3G is usually 5 days.

3.What payment methods are accepted for ES1D R3G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1D R3G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES1D R3G?

ES1D R3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES1D R3G 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 ES1D R3G?

For technical support, including ES1D R3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1D R3G requirements.

6.How does Aetrix verify that ES1D R3G is sourced from the original manufacturer or authorized distributors?

All ES1D R3G 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 ES1D R3G meets industry standards.

7.What is the process for return or replacement of ES1D R3G?

All ES1D R3G units undergo pre-shipment inspection (PSI). If there is an issue with ES1D R3G, 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 ES1D R3G part is unused and in its original packaging.

Return procedure for ES1D R3G:

1.Submit a request within 90 days.

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

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