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

Taiwan Semiconductor Corporation ESH3DFSH

Name: ESH3DFSH
Brand: Taiwan Semiconductor Corporation
SKU: ESH3DFSH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ESH3DFSH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-128

Datasheet:: ESH3DFSH.pdf

Description:: DIODE GEN PURP 200V 3A SOD128

Quantity:: RFQ Add To RFQ list

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Inventory:13,813

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Product details

Overview

ESH3DFSH from Taiwan Semiconductor is a 3A, 200V ultra-fast surface-mount rectifier diode in SOD-128 package, featuring 25ns reverse recovery time, 0.85V forward voltage at 3A/25°C, and AEC-Q101 qualification for automotive switching-mode converters and freewheeling applications.

For engineers reviewing the ESH3DFSH datasheet, ESH3DFSH pinout, ESH3DFSH application, or ESH3DFSH equivalent, key selection criteria include its 132A surge rating, 175°C junction temperature limit, J-STD-020 Level 1 moisture sensitivity, and glass-passivated junction for reliability in high-frequency rectification.

Technical Context

The ESH3DFSH is a single-die, unidirectional silicon rectifier optimized for high-efficiency switching power supplies. Its ultra-fast recovery (trr ≤ 25ns) minimizes switching losses, while the low VF (0.85V max at 3A/25°C) reduces conduction loss in automotive DC-DC converters and inverters.

Thermally, it delivers R_θJL = 12°C/W and R_θJA = 65°C/W on a 5mm × 5mm Cu pad, enabling stable operation up to 175°C junction temperature. The SOD-128 package supports automated placement and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum repetitive reverse voltage before breakdown; enables use in 100–150V bus systems with safety margin
I_F	3 A - Continuous forward current rating; supports medium-power SMPS output stages without heatsinking
t_rr	25 ns - Ultra-fast reverse recovery time; reduces switching loss and EMI in >100 kHz converters
V_F @ 3A, 25°C	0.85 V max - Low conduction loss improves efficiency and thermal performance in high-duty-cycle operation
I_FSM (8.3ms)	132 A - Surge current capability; withstands inrush and fault transients in automotive power modules
T_J max	175 °C - High junction temperature rating allows operation in under-hood environments without derating
R_θJL	12 °C/W - Low junction-to-lead thermal resistance enables direct PCB copper pad heat sinking

Pinout & Package

SOD-128 is a low-profile, surface-mount plastic package with two terminals: anode and cathode. Polarity is marked by a visible cathode band on the device body. Leads are matte tin-plated and solderable per J-STD-002.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to higher-potential node (e.g., switch node in buck converter); must handle full I_F and I_FSM
Cathode	Forward current exit / reverse blocking terminal	Connected to output rail or ground return; carries reverse leakage (≤5 µA at 25°C) and blocks 200 V

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements
Glass-passivated junction	Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives
Moisture Sensitivity Level 1	No bake preconditioning required before reflow; compatible with standard SMT assembly lines
Ultra-fast trr ≤ 25 ns	Enables high-frequency operation (>200 kHz) with minimal reverse recovery loss and reduced snubber needs
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS Directive for environmentally restricted materials

Applications

Automotive DC-DC Converters	High-Frequency Switch-Mode Power Supplies
Use Scenario: Step-down conversion in 12V/48V hybrid vehicle subsystems powering ADAS sensors and infotainment. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck topology, handling 3A continuous load with fast transient response. Use Value: 25ns t_rr and 0.85V V_F reduce switching and conduction losses, improving system efficiency by ≥1.2% over standard FRDs.	Use Scenario: Secondary-side rectification in compact AC-DC adapters and industrial PoE injectors operating at 200–500 kHz. IC Role / Device Role / Timing Role: Freewheeling diode in flyback or forward converters, clamping inductive kickback during MOSFET off-time. Use Value: Low R_θJL (12°C/W) and 175°C T_J enable reliable operation on small PCB footprints without forced air cooling.
Automotive Inverters	Freewheeling in Motor Control
Use Scenario: Auxiliary power supply in EV traction inverter gate driver boards requiring isolated 15V rails. IC Role / Device Role / Timing Role: Input rectifier feeding high-frequency LLC resonant converter, exposed to 200V bus transients. Use Value: 200V V_RRM and 132A I_FSM provide robustness against line surges and short-circuit events in 48V systems.	Use Scenario: Inductive load suppression in 12V BLDC motor drivers for HVAC actuators and power seats. IC Role / Device Role / Timing Role: Freewheeling path for back-EMF energy during PWM commutation cycles. Use Value: Ultra-fast recovery minimizes voltage overshoot and prevents MOSFET avalanche stress during rapid current reversal.

Automotive DC-DC Converters

High-Frequency Switch-Mode Power Supplies

Use Scenario: Step-down conversion in 12V/48V hybrid vehicle subsystems powering ADAS sensors and infotainment.

IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck topology, handling 3A continuous load with fast transient response.

Use Value: 25ns t_rr and 0.85V V_F reduce switching and conduction losses, improving system efficiency by ≥1.2% over standard FRDs.

Use Scenario: Secondary-side rectification in compact AC-DC adapters and industrial PoE injectors operating at 200–500 kHz.

IC Role / Device Role / Timing Role: Freewheeling diode in flyback or forward converters, clamping inductive kickback during MOSFET off-time.

Use Value: Low R_θJL (12°C/W) and 175°C T_J enable reliable operation on small PCB footprints without forced air cooling.

Automotive Inverters

Freewheeling in Motor Control

Use Scenario: Auxiliary power supply in EV traction inverter gate driver boards requiring isolated 15V rails.

IC Role / Device Role / Timing Role: Input rectifier feeding high-frequency LLC resonant converter, exposed to 200V bus transients.

Use Value: 200V V_RRM and 132A I_FSM provide robustness against line surges and short-circuit events in 48V systems.

Use Scenario: Inductive load suppression in 12V BLDC motor drivers for HVAC actuators and power seats.

IC Role / Device Role / Timing Role: Freewheeling path for back-EMF energy during PWM commutation cycles.

Use Value: Ultra-fast recovery minimizes voltage overshoot and prevents MOSFET avalanche stress during rapid current reversal.

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	V_RRM = 600 V, t_rr = 35 ns, V_F = 1.15 V @ 3A - higher voltage rating but slower and less efficient	Better suited for 400V PFC stages; over-specified for 200V automotive rails	Select when higher reverse voltage margin is needed, accepting higher conduction loss and larger footprint
ON Semi MUR320	V_RRM = 200 V, t_rr = 35 ns, V_F = 0.92 V @ 3A - same voltage rating but slower recovery and higher VF	Compatible in legacy designs where 25ns speed is not critical	Choose only if ESH3DFSH lead time is constrained; expect ~0.3% lower efficiency at full load

Compared with STTH3L06S and MUR320, the ESH3DFSH delivers superior high-frequency efficiency due to its 25ns t_rr and 0.85V V_F, while maintaining AEC-Q101 qualification and SOD-128 compatibility-making it optimal for space-constrained, thermally demanding automotive SMPS.

Availability

ESH3DFSH is available at Aetrix Electronics and suitable for automotive DC-DC converters, high-frequency switching power supplies, and freewheeling applications requiring stable component supply, AEC-Q101 compliance, and ultra-fast recovery performance.

Supply support for ESH3DFSH 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 automotive, industrial, and consumer markets since 1979.

The ESH3DFSH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier family, designed specifically for high-efficiency, high-reliability power conversion in automotive electrification systems.

FAQ

What is the maximum junction temperature rating for ESH3DFSH?

The ESH3DFSH has a maximum junction temperature (T_J) of +175°C, verified per absolute maximum ratings table. This allows sustained operation in under-hood automotive environments without thermal derating when mounted on a 5mm × 5mm Cu pad. The ESH3DFSH's thermal design supports this rating via R_θJL = 12°C/W and R_θJC = 11°C/W, making the ESH3DFSH suitable for high-ambient applications where thermal headroom is limited.

Is ESH3DFSH qualified for automotive applications?

Yes, the ESH3DFSH is AEC-Q101 qualified, meaning it has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. This qualification confirms its suitability for automotive power electronics such as DC-DC converters and motor control freewheeling circuits. The ESH3DFSH's glass-passivated junction and J-STD-020 Level 1 moisture sensitivity further reinforce its automotive readiness.

What is the reverse recovery time (t_rr) of ESH3DFSH and how is it measured?

The ESH3DFSH has a maximum reverse recovery time (t_rr) of 25 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This ultra-fast value is confirmed in the electrical specifications table and enables high-frequency switching with minimal recovery loss. The ESH3DFSH's t_rr performance directly contributes to reduced EMI and improved efficiency in converters operating above 100 kHz.

What packaging and tape-and-reel configuration is available for ESH3DFSH?

The ESH3DFSH is supplied in SOD-128 package and packaged in tape-and-reel format with 14,000 units per reel, as specified in the ordering information section. The SOD-128 outline complies with JEDEC standards and supports automated pick-and-place assembly. The ESH3DFSH's marking code "H3DFSH" appears on the device body, and the package uses matte tin-plated leads solderable per J-STD-002.

Does ESH3DFSH meet halogen-free and RoHS requirements?

Yes, the ESH3DFSH is both RoHS compliant and halogen-free per IEC 61249-2-21. These environmental qualifications are explicitly stated in the FEATURES section and verified through material declarations. The ESH3DFSH's compliance ensures eligibility for global automotive and industrial markets with strict chemical content restrictions, and the ESH3DFSH's UL 94V-0 molding compound adds flame-retardant safety.

ESH3DFSH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-128

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 3 A

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

Reverse Recovery Time (trr):: 25 ns

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

Capacitance @ Vr, F:: 42pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-128

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

ESH3DFSH FAQ

1.How can I place an order for ESH3DFSH through Aetrix?

Please submit a Request for Quotation (RFQ) for ESH3DFSH 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 ESH3DFSH reliable?

The price and inventory of ESH3DFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH3DFSH is usually 5 days.

3.What payment methods are accepted for ESH3DFSH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH3DFSH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ESH3DFSH?

ESH3DFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ESH3DFSH 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 ESH3DFSH?

For technical support, including ESH3DFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH3DFSH requirements.

6.How does Aetrix verify that ESH3DFSH is sourced from the original manufacturer or authorized distributors?

All ESH3DFSH 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 ESH3DFSH meets industry standards.

7.What is the process for return or replacement of ESH3DFSH?

All ESH3DFSH units undergo pre-shipment inspection (PSI). If there is an issue with ESH3DFSH, 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 ESH3DFSH part is unused and in its original packaging.

Return procedure for ESH3DFSH:

1.Submit a request within 90 days.

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

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