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Taiwan Semiconductor Corporation ESH3BH
- Part No.:
- ESH3BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
ESH3BH.pdf
- Description:
- 20NS, 3A, 100V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
ESH3BH from Taiwan Semiconductor is a 100 V, 3 A ultra-fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 20 ns reverse recovery time, 0.9 V forward voltage at 3 A, and AEC-Q101 qualification for automotive-grade reliability in DC-DC converters and freewheeling circuits.
For engineers reviewing the ESH3BH datasheet, ESH3BH pinout, ESH3BH application, or ESH3BH equivalent, key selection criteria include its 100 V repetitive peak reverse voltage, 125 A surge rating, 175 °C max junction temperature, ultra-fast trr ≤20 ns, and DO-214AB mechanical compatibility with automated SMT assembly.
Technical Context
The ESH3BH is a single-die, glass-passivated silicon rectifier optimized for high-frequency switching applications. Its ultra-fast recovery (trr ≤20 ns) minimizes switching losses, while the low VF (≤0.9 V @ 3 A) reduces conduction loss in power conversion stages.
Designed for automotive and industrial environments, it meets AEC-Q101 stress testing, JESD201 Class 2 whisker resistance, and J-STD-020 Level 1 moisture sensitivity - enabling robust operation from –55 °C to +175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum non-repetitive reverse blocking voltage; defines safe operating range in snubber or freewheeling paths. |
| IF | 3 A - Continuous average forward current; supports compact thermal design in 3A DC-DC output stages. |
| trr | ≤20 ns - Ultra-fast reverse recovery; enables efficient operation above 100 kHz switching frequencies. |
| VF | ≤0.9 V @ 3 A - Low forward voltage drop; directly reduces I²R conduction loss and improves system efficiency. |
| TJ MAX | +175 °C - High junction temperature rating; allows operation in under-hood automotive environments without derating. |
| RθJA | 47 °C/W - Junction-to-ambient thermal resistance; informs heatsink or PCB copper area requirements for thermal management. |
Pinout & Package
Package: DO-214AB (SMC), low-profile surface-mount case with matte tin-plated leads, cathode polarity indicated by band, UL 94V-0 molding compound, and 0.200 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node; must handle 3 A continuous and 125 A surge. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to higher-potential rail; sustains 100 V reverse bias and <5 µA leakage at 25°C. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test requirements - enables deployment in engine control, lighting, and ADAS subsystems. |
| Glass passivated junction | Enhances long-term reliability and humidity resistance vs. epoxy-passivated alternatives in harsh environments. |
| Ultra-fast trr ≤20 ns | Reduces reverse recovery charge (Qrr), lowering EMI and improving efficiency in high-frequency SMPS topologies. |
| DO-214AB (SMC) package | Standardized footprint compatible with high-speed pick-and-place; supports reflow soldering per J-STD-002. |
Applications
| DC-DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters powering infotainment systems. IC Role / Device Role / Timing Role: Output rectifier handling 3 A continuous current with minimal conduction and switching loss. Use Value: 0.9 V VF and 20 ns trr reduce total power loss by >15% vs. standard fast recovery diodes at 200 kHz. | Use Scenario: LED driver freewheeling path in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED current regulators during PWM off-time. Use Value: 175 °C TJ max and AEC-Q101 qualification ensure stable operation in high-temperature headlamp housings. |
| Snubber Circuit | Freewheeling Application |
Use Scenario: RCD snubber clamp across MOSFETs in boost PFC stages for EV on-board chargers. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing turn-off energy spikes. Use Value: 20 ns trr prevents voltage overshoot exceeding 100 V rating during rapid dv/dt events. | Use Scenario: Inductive load suppression in automotive solenoid drivers (e.g., transmission control valves). IC Role / Device Role / Timing Role: Freewheeling path for back-EMF energy dissipation when drive signal is removed. Use Value: 125 A IFSM rating withstands repeated inductive kickback surges without degradation. |
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-3EWH01-M3/5AT | Same DO-214AB package, 100 V VRRM, but VF = 0.95 V @ 3 A and trr = 25 ns. | Slightly higher conduction loss and slower recovery; less optimal in >300 kHz designs. | Acceptable where margin exists on thermal or efficiency targets. |
| ON Semiconductor MUR310EG | DO-214AC (SMA) package, 100 V VRRM, VF = 0.87 V @ 3 A, trr = 35 ns. | Smaller footprint but lower surge rating (100 A vs. 125 A); not AEC-Q101 qualified. | Preferred for space-constrained non-automotive designs; avoid in automotive safety-critical paths. |
Compared with VS-3EWH01-M3/5AT and MUR310EG, the ESH3BH delivers superior combination of AEC-Q101 compliance, 125 A surge capability, and 20 ns trr - making it the preferred choice for automotive-grade, high-reliability ultra-fast rectification where thermal and switching performance are tightly coupled.
Availability
ESH3BH is available at Aetrix Electronics and suitable for DC-DC converters, automotive lighting systems, and snubber circuits requiring stable component supply, full traceability, and automotive-grade qualification.
Supply support for ESH3BH 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS, MOSFETs, and IGBTs, with global distribution and AEC-Q101 validation capability.
The ESH3BH belongs to TSC's ESH3xH ultra-fast rectifier family, engineered specifically for high-efficiency, high-reliability automotive and industrial power conversion where fast recovery, thermal robustness, and process consistency are critical.
FAQ
What is the maximum junction temperature rating for ESH3BH?
The ESH3BH has a maximum junction temperature (TJ MAX) of +175 °C, verified per AEC-Q101 thermal cycling and high-temperature operating life tests. This rating allows reliable operation in under-hood automotive environments and high-power-density industrial converters without additional derating beyond datasheet curves. The ESH3BH maintains specified electrical parameters up to this limit when thermal design adheres to RθJA = 47 °C/W.
Is ESH3BH qualified for automotive applications?
Yes, the ESH3BH is AEC-Q101 qualified, having passed all required stress tests including HTGB, HTRB, TCT, and mechanical shock. It is explicitly rated for automotive use in applications such as lighting, DC-DC conversion, and solenoid drivers. The ESH3BH's marking code "ESH3B" and packaging in DO-214AB (SMC) align with automotive manufacturing standards, including J-STD-020 Level 1 moisture sensitivity and JESD201 Class 2 whisker resistance.
What is the reverse recovery time (trr) specification for ESH3BH?
The ESH3BH has a maximum reverse recovery time (trr) of 20 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. This ultra-fast recovery enables high-frequency switching (>200 kHz) with minimal switching loss and reduced EMI generation. The ESH3BH's trr is confirmed in the official TSC datasheet Version A2102, Figure 6, and is a key differentiator versus standard fast recovery diodes with trr >50 ns.
Does ESH3BH have a halogen-free construction?
Yes, the ESH3BH uses halogen-free molding compound compliant with IEC 61249-2-21, and its matte tin-plated leads meet RoHS Directive 2011/65/EU. This construction eliminates brominated flame retardants and chlorine-based additives, supporting environmentally conscious manufacturing and end-of-life processing. The ESH3BH's halogen-free status is documented in the "Features" section of the TSC datasheet and verified via material declarations.
What is the forward voltage (VF) of ESH3BH at rated current?
The ESH3BH exhibits a maximum forward voltage (VF) of 0.9 V at IF = 3 A and TJ = 25 °C, per the Electrical Specifications table in the TSC datasheet. This low VF directly reduces conduction loss in power paths - for example, yielding ~2.7 W loss at full load versus ~3.6 W for a 1.2 V diode. The ESH3BH's VF remains stable across its –55 °C to +175 °C operating range, supporting consistent performance in thermally variable environments.
ESH3BH 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):
- 100 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 @ 100 V
- Capacitance @ Vr, F:
- 45pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 175°C
ESH3BH FAQ
1.How can I place an order for ESH3BH through Aetrix?
Please submit a Request for Quotation (RFQ) for ESH3BH 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 ESH3BH reliable?
The price and inventory of ESH3BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH3BH is usually 5 days.
3.What payment methods are accepted for ESH3BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH3BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESH3BH?
ESH3BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESH3BH 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 ESH3BH?
For technical support, including ESH3BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH3BH requirements.
6.How does Aetrix verify that ESH3BH is sourced from the original manufacturer or authorized distributors?
All ESH3BH 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 ESH3BH meets industry standards.
7.What is the process for return or replacement of ESH3BH?
All ESH3BH units undergo pre-shipment inspection (PSI). If there is an issue with ESH3BH, 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 ESH3BH part is unused and in its original packaging.
Return procedure for ESH3BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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