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

Taiwan Semiconductor Corporation ESH3D R7G

Name: ESH3D R7G
Brand: Taiwan Semiconductor Corporation
SKU: ESH3D R7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ESH3D R7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: ESH3D R7G.pdf

Description:: DIODE GEN PURP 200V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:4,447

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Product details

Overview

ESH3D R7G from Taiwan Semiconductor is a 200V, 3A ultra-fast surface-mount rectifier in DO-214AB (SMC) package, featuring 20 ns reverse recovery time, 0.9 V forward voltage at 3 A, and 125 A peak surge capability - deployed in high-frequency switching mode power supplies for telecom and computing infrastructure.

For engineers reviewing the ESH3D R7G datasheet, ESH3D R7G pinout, ESH3D R7G application, or ESH3D R7G equivalent, key selection criteria include repetitive peak reverse voltage (200 V), thermal resistance (R_θJL = 12 °C/W), junction temperature range (–55 to +175 °C), and moisture sensitivity level (MSL 1).

Technical Context

The ESH3D R7G is a single-die, glass-passivated silicon rectifier optimized for high-efficiency DC/DC conversion where fast switching and low conduction loss are critical. Its ultra-fast recovery (trr ≤ 20 ns) minimizes switching losses during turn-off in hard-switched topologies.

Designed for automated SMT assembly, it uses matte tin-plated leads compliant with J-STD-002 and meets JESD201 Class 2 whisker resistance. The DO-214AB (SMC) package supports high power density with 0.200 g mass and UL 94V-0 molding compound.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback or boost diode position
I_F	3 A continuous - Rated average forward current at case temperature ≤ 75 °C; determines heatsink sizing in SMPS output stage
t_rr	20 ns - Measured at I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A; enables >500 kHz operation without excessive switching loss
V_F	0.9 V max @ 3 A, 25 °C - Low conduction drop improves efficiency in 12 V or 48 V output rectification
R_θJL	12 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour cooling without external heatsink
I_FSM	125 A @ 8.3 ms - Withstands inrush and transient surges in AC-DC front-end and PFC stages

Pinout & Package

Package: DO-214AB (SMC), surface-mount, cathode indicated by molded band. Dimensions per Taiwan Semiconductor outline drawing: length 7.11 mm, width 6.22 mm, height 2.34 mm.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to switch node (e.g., MOSFET drain) in freewheeling path; requires low-inductance layout
Cathode	Forward current exit / reverse voltage reference	Connected to output rail; polarity marked by visible band; must be routed away from sensitive analog traces

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments
MSL Level 1 rating	Zero bake requirement before reflow; compatible with standard JEDEC-compliant SMT lines without dry pack handling
Ultra-fast 20 ns t_rr	Reduces reverse recovery charge (Q_rr) to <15 nC, lowering EMI and improving light-load efficiency in QR flyback
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU Directive 2011/65/EU; supports green manufacturing and export compliance

Applications

Telecom AC-DC Adapters	Server PSU Output Rectification
Use Scenario: 48 V output stage in 1 kW telecom rectifier with active clamp forward topology. IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; handles 3 A DC with 100 kHz switching. Use Value: 20 ns t_rr prevents cross-conduction loss and reduces snubber dissipation vs. standard fast recovery diodes.	Use Scenario: Secondary-side synchronous rectification assist in 12 V VRM for CPU power delivery. IC Role / Device Role / Timing Role: OR-ing diode in redundant 12 V bus; blocks reverse current during hot-swap events. Use Value: 200 V V_RRM provides margin against load dump transients; 125 A I_FSM withstands inrush during cold start.
Industrial Motor Drive Inverters	5G Base Station Power Modules
Use Scenario: Brake chopper circuit in 400 V DC bus motor drive with regenerative braking. IC Role / Device Role / Timing Role: Clamping diode dissipating regenerated energy into braking resistor. Use Value: 175 °C T_JMAX and R_θJL = 12 °C/W enable operation at 105 °C ambient without derating.	Use Scenario: Input rectification in compact 300 W RF power amplifier module with forced-air cooling. IC Role / Device Role / Timing Role: Bridge leg diode in full-wave rectifier feeding GaN-based DC-DC converter. Use Value: Low 0.9 V V_F reduces conduction loss at 3 A; DO-214AB footprint allows dense layout in constrained RF shielded enclosure.

Telecom AC-DC Adapters

Server PSU Output Rectification

Use Scenario: 48 V output stage in 1 kW telecom rectifier with active clamp forward topology.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; handles 3 A DC with 100 kHz switching.

Use Value: 20 ns t_rr prevents cross-conduction loss and reduces snubber dissipation vs. standard fast recovery diodes.

Use Scenario: Secondary-side synchronous rectification assist in 12 V VRM for CPU power delivery.

IC Role / Device Role / Timing Role: OR-ing diode in redundant 12 V bus; blocks reverse current during hot-swap events.

Use Value: 200 V V_RRM provides margin against load dump transients; 125 A I_FSM withstands inrush during cold start.

Industrial Motor Drive Inverters

5G Base Station Power Modules

Use Scenario: Brake chopper circuit in 400 V DC bus motor drive with regenerative braking.

IC Role / Device Role / Timing Role: Clamping diode dissipating regenerated energy into braking resistor.

Use Value: 175 °C T_JMAX and R_θJL = 12 °C/W enable operation at 105 °C ambient without derating.

Use Scenario: Input rectification in compact 300 W RF power amplifier module with forced-air cooling.

IC Role / Device Role / Timing Role: Bridge leg diode in full-wave rectifier feeding GaN-based DC-DC converter.

Use Value: Low 0.9 V V_F reduces conduction loss at 3 A; DO-214AB footprint allows dense layout in constrained RF shielded enclosure.

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-3EWH02-F	V_RRM = 200 V, t_rr = 25 ns, V_F = 0.95 V @ 3 A - slightly slower recovery and higher VF	Same DO-214AB package; validated in telecom SMPS but shows 5% lower efficiency at 300 kHz	Acceptable where 5 ns t_rr margin is not critical; verify thermal performance at 70 °C ambient
ON Semiconductor MUR320	V_RRM = 200 V, t_rr = 35 ns, V_F = 0.97 V @ 3 A - significantly slower recovery, higher Q_rr	DO-201AD axial lead; incompatible with SMT automation; requires through-hole rework	Only suitable for prototyping or legacy repair; not recommended for new SMT designs requiring high frequency operation

Compared with VS-3EWH02-F and MUR320, the ESH3D R7G delivers superior high-frequency performance due to its 20 ns t_rr and MSL 1 compatibility, enabling direct placement on modern SMT lines without baking - critical for high-volume telecom and server power production.

Availability

ESH3D R7G is available at Aetrix Electronics and suitable for telecom AC-DC adapters, server power supply units, and industrial motor drive inverters requiring stable component supply, consistent parametric performance, and full traceability across production lots.

Supply support for ESH3D 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 Taiwanese manufacturer specializing in discrete power semiconductors, including rectifiers, TVS, MOSFETs, and IGBTs since 1979.

The ESH3D R7G belongs to TSC's ESH3x ultra-fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power conversion in computing, communications, and industrial equipment.

FAQ

What is the maximum junction temperature rating for the ESH3D R7G?

The ESH3D R7G has a maximum junction temperature (T_JMAX) of +175 °C, allowing reliable operation in high-ambient environments such as enclosed server PSUs or industrial motor drives. This rating is maintained across the full –55 °C to +175 °C storage temperature range. Derating curves in the official datasheet define allowable forward current versus case temperature, and the ESH3D R7G sustains 3 A up to 75 °C case temperature.

Is the ESH3D R7G suitable for reflow soldering in automated SMT lines?

Yes, the ESH3D R7G is fully compatible with standard lead-free reflow profiles and carries MSL Level 1 per J-STD-020 - meaning it can be stored indefinitely at ≤30 °C/60% RH without baking prior to assembly. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the DO-214AB (SMC) package is optimized for pick-and-place accuracy and thermal stability during reflow.

How does the reverse recovery time of the ESH3D R7G compare to standard fast recovery diodes?

The ESH3D R7G achieves a typical reverse recovery time (t_rr) of 20 ns under I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A conditions - substantially faster than standard fast recovery diodes (typically 50–100 ns). This enables efficient operation above 300 kHz in QR flyback and active clamp forward converters, reducing switching loss and EMI generation compared to alternatives like MUR320.

What is the marking code printed on the ESH3D R7G device body?

The ESH3D R7G is marked with "ESH3D" on the cathode-banded surface, followed by "G" (indicating halogen-free green compound), a two-digit date code (e.g., "23" for 2023), and factory code "F". This marking aligns with Taiwan Semiconductor's DO-214AB package layout and is verified in the official package outline drawing (Version I2102).

Does the ESH3D R7G meet halogen-free and RoHS requirements?

Yes, the ESH3D R7G complies with both RoHS Directive 2011/65/EU and IEC 61249-2-21 for halogen-free materials. The "G" in its marking code explicitly denotes green (halogen-free) molding compound, and all plating, die attach, and encapsulation materials have been certified to these standards by Taiwan Semiconductor's quality system.

ESH3D 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):: 200 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 3 A

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

Reverse Recovery Time (trr):: 20 ns

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

Capacitance @ Vr, F:: 45pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

ESH3D R7G FAQ

1.How can I place an order for ESH3D R7G through Aetrix?

Please submit a Request for Quotation (RFQ) for ESH3D 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 ESH3D R7G reliable?

The price and inventory of ESH3D R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH3D R7G is usually 5 days.

3.What payment methods are accepted for ESH3D R7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH3D R7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ESH3D R7G?

ESH3D R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ESH3D 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 ESH3D R7G?

For technical support, including ESH3D R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH3D R7G requirements.

6.How does Aetrix verify that ESH3D R7G is sourced from the original manufacturer or authorized distributors?

All ESH3D 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 ESH3D R7G meets industry standards.

7.What is the process for return or replacement of ESH3D R7G?

All ESH3D R7G units undergo pre-shipment inspection (PSI). If there is an issue with ESH3D 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 ESH3D R7G part is unused and in its original packaging.

Return procedure for ESH3D R7G:

1.Submit a request within 90 days.

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

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