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

Taiwan Semiconductor Corporation ESH3C

Name: ESH3C
Brand: Taiwan Semiconductor Corporation
SKU: ESH3C
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ESH3C

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: ESH3C.pdf

Description:: DIODE GEN PURP 150V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:2,976

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Product details

Overview

ESH3C from Taiwan Semiconductor is a 3A, 150V ultra-fast surface-mount rectifier diode in DO-214AB (SMC) package, featuring 20 ns reverse recovery time, 0.9 V forward voltage at 3 A, and 125 A peak surge current - deployed in high-frequency switching mode power supplies for telecom and computing equipment.

For engineers reviewing the ESH3C datasheet, ESH3C pinout, ESH3C application, or ESH3C equivalent, key selection criteria include repetitive peak reverse voltage (150 V), thermal resistance (12 °C/W junction-to-lead), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and SMC package compatibility with automated placement.

Technical Context

The ESH3C is a single-die, glass-passivated ultra-fast recovery rectifier optimized for high-efficiency DC/DC conversion where low forward voltage and fast switching minimize conduction and switching losses. Its 20 ns trr enables operation up to several hundred kHz in SMPS topologies.

Designed for junction temperatures up to 175 °C and rated for 125 A non-repetitive surge, the ESH3C supports robust freewheeling and output rectification in compact, thermally constrained layouts - leveraging its 12 °C/W R_θJL for direct lead heat sinking.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling paths
I_F	3 A continuous - average forward current rating at T_L = 75 °C; determines heatsink or PCB copper requirement
t_rr	20 ns - ultra-fast recovery time; reduces switching loss and EMI in high-frequency converters (>100 kHz)
V_F	0.9 V @ 3 A, 25 °C - low forward drop improves efficiency and reduces thermal load on PCB traces
R_θJL	12 °C/W - low junction-to-lead thermal resistance enables direct thermal coupling to copper pour or heatsink tab
I_FSM	125 A @ 8.3 ms - handles inrush and transient overloads without failure in SMPS startup or fault conditions
C_J	45 pF @ 4 V - low junction capacitance minimizes capacitive coupling and ringing in high-dv/dt environments

Pinout & Package

Package: DO-214AB (SMC) - molded plastic case with matte tin-plated leads, J-STD-002 solderable, UL 94V-0 rated, polarity indicated by cathode band.

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 area for thermal dissipation
Cathode	Forward current exit / reverse blocking terminal	Connected to output rail or ground return; cathode band marks this terminal for correct PCB orientation and assembly verification

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial-grade designs
Ultra-fast 20 ns recovery	Enables >300 kHz operation in LLC and phase-shifted full-bridge topologies without excessive switching loss or snubber complexity
DO-214AB (SMC) package	Supports automated pick-and-place (IPC-7351B compliant), offers 0.200 g weight and low profile for space-constrained board stacking
J-STD-020 Level 1 moisture sensitivity	Eliminates bake requirements before reflow; compatible with standard SMT lines without dry pack handling or floor life tracking
RoHS & halogen-free	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU; suitable for export to regulated markets including EU, Japan, and South Korea

Applications

Telecom AC-DC Adapters	Server VRM Output Rectification
Use Scenario: Secondary-side rectification in 48 V input telecom AC-DC adapters delivering 12 V/20 A outputs. IC Role / Device Role / Timing Role: Ultra-fast output rectifier replacing Schottky diodes where higher V_RRM margin is required against line transients. Use Value: 150 V V_RRM provides 25% headroom above 48 V × √2 + margin, while 20 ns t_rr maintains efficiency at 250 kHz switching frequency.	Use Scenario: Synchronous rectifier backup or freewheeling path in multiphase server VRMs with 3.3 V/60 A output. IC Role / Device Role / Timing Role: Freewheeling diode across high-side MOSFET in buck converter phase legs during dead-time conduction. Use Value: Low 0.9 V V_F limits conduction loss during brief freewheeling intervals, and 125 A I_FSM withstands phase-current overshoot during load-step events.
Industrial PLC Power Supplies	5G Remote Radio Unit (RRU) DC-DC
Use Scenario: Input rectification stage in wide-input (90–305 VAC) DIN-rail power supplies for programmable logic controllers. IC Role / Device Role / Timing Role: Bridge rectifier leg component in full-wave configuration, operating continuously at 60 °C ambient. Use Value: 175 °C T_JMAX and 12 °C/W R_θJL allow reliable operation without forced air, even with 10 K/W system thermal resistance.	Use Scenario: Isolated DC-DC converter in outdoor 5G RRU units requiring -40 °C to +85 °C operation with high MTBF. IC Role / Device Role / Timing Role: Secondary-side rectifier in 48 V to 5 V isolated flyback supplying FPGA and RF front-end bias rails. Use Value: Glass passivation and JESD201 Class 2 whisker resistance ensure reliability over 10-year field life in temperature-cycled outdoor enclosures.

Telecom AC-DC Adapters

Server VRM Output Rectification

Use Scenario: Secondary-side rectification in 48 V input telecom AC-DC adapters delivering 12 V/20 A outputs.

IC Role / Device Role / Timing Role: Ultra-fast output rectifier replacing Schottky diodes where higher V_RRM margin is required against line transients.

Use Value: 150 V V_RRM provides 25% headroom above 48 V × √2 + margin, while 20 ns t_rr maintains efficiency at 250 kHz switching frequency.

Use Scenario: Synchronous rectifier backup or freewheeling path in multiphase server VRMs with 3.3 V/60 A output.

IC Role / Device Role / Timing Role: Freewheeling diode across high-side MOSFET in buck converter phase legs during dead-time conduction.

Use Value: Low 0.9 V V_F limits conduction loss during brief freewheeling intervals, and 125 A I_FSM withstands phase-current overshoot during load-step events.

Industrial PLC Power Supplies

5G Remote Radio Unit (RRU) DC-DC

Use Scenario: Input rectification stage in wide-input (90–305 VAC) DIN-rail power supplies for programmable logic controllers.

IC Role / Device Role / Timing Role: Bridge rectifier leg component in full-wave configuration, operating continuously at 60 °C ambient.

Use Value: 175 °C T_JMAX and 12 °C/W R_θJL allow reliable operation without forced air, even with 10 K/W system thermal resistance.

Use Scenario: Isolated DC-DC converter in outdoor 5G RRU units requiring -40 °C to +85 °C operation with high MTBF.

IC Role / Device Role / Timing Role: Secondary-side rectifier in 48 V to 5 V isolated flyback supplying FPGA and RF front-end bias rails.

Use Value: Glass passivation and JESD201 Class 2 whisker resistance ensure reliability over 10-year field life in temperature-cycled outdoor enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L06S (STMicroelectronics)	Same 3 A / 600 V rating but slower trr (35 ns), higher V_F (1.15 V), TO-277 package	Higher voltage margin but reduced efficiency at >200 kHz; larger footprint than SMC	Prefer ESH3C where layout space and switching frequency are critical
MBR3150 (ON Semiconductor)	Schottky diode: 3 A / 150 V, V_F = 0.82 V, but limited to 125 °C T_JMAX, no glass passivation	Better efficiency at low voltage but unsuitable for high-temp or humid environments	Prefer ESH3C where junction temperature exceeds 125 °C or reliability under humidity is required

Compared with STTH3L06S and MBR3150, the ESH3C delivers optimal balance of speed (20 ns), thermal robustness (175 °C), and package compactness (SMC) for high-density, high-reliability telecom and industrial SMPS - without sacrificing voltage margin or moisture resilience.

Availability

ESH3C is available at Aetrix Electronics and suitable for telecom AC-DC adapters, server VRM freewheeling paths, and industrial PLC power supplies requiring stable component supply, long-lifecycle assurance, and J-STD-020 Level 1 handling.

Supply support for ESH3C 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 power rectifiers, TVS devices, and MOSFETs for industrial and computing markets.

The ESH3x series belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-frequency switching power conversion where low trr, stable V_F, and rugged packaging are essential for efficiency and reliability.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for ESH3C?

The ESH3C has a maximum repetitive peak reverse voltage (V_RRM) of 150 V, as specified in the Absolute Maximum Ratings table. This value is fixed for the ESH3C variant and distinguishes it from ESH3B (100 V) and ESH3D (200 V). The 150 V rating ensures safe operation in 48 V and 110 V DC systems with transient margin, and is validated per JEDEC test conditions.

Does ESH3C support automated SMT assembly?

Yes, the ESH3C supports automated surface-mount assembly. Its DO-214AB (SMC) package features matte tin-plated leads compliant with J-STD-002, low-profile geometry, and J-STD-020 Level 1 moisture sensitivity - eliminating bake requirements and enabling direct use from sealed tape-and-reel packaging in standard reflow lines.

What is the reverse recovery time (t_rr) of ESH3C and how is it measured?

The ESH3C has a maximum reverse recovery time (t_rr) of 20 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the Electrical Specifications table. This ultra-fast recovery is achieved via optimized carrier lifetime control and is critical for minimizing switching loss in converters operating above 100 kHz.

Is ESH3C RoHS and halogen-free compliant?

Yes, the ESH3C is fully RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. These compliance statements are confirmed in the Features section and verified through material declarations provided by Taiwan Semiconductor, supporting global market access and green manufacturing requirements.

What thermal performance metrics are specified for ESH3C?

The ESH3C specifies a junction-to-lead thermal resistance (R_θJL) of 12 °C/W and junction-to-ambient (R_θJA) of 47 °C/W. These values enable accurate thermal design: R_θJL supports direct copper pour heat sinking, while R_θJA applies to standard 1-inch² 2-oz copper pad per JEDEC 51-3.

ESH3C Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 150 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: -

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

Reverse Recovery Time (trr):: 20 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 150 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

ESH3C FAQ

1.How can I place an order for ESH3C through Aetrix?

Please submit a Request for Quotation (RFQ) for ESH3C 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 ESH3C reliable?

The price and inventory of ESH3C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH3C is usually 5 days.

3.What payment methods are accepted for ESH3C?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH3C transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ESH3C?

ESH3C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ESH3C 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 ESH3C?

For technical support, including ESH3C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH3C requirements.

6.How does Aetrix verify that ESH3C is sourced from the original manufacturer or authorized distributors?

All ESH3C 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 ESH3C meets industry standards.

7.What is the process for return or replacement of ESH3C?

All ESH3C units undergo pre-shipment inspection (PSI). If there is an issue with ESH3C, 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 ESH3C part is unused and in its original packaging.

Return procedure for ESH3C:

1.Submit a request within 90 days.

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

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