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Taiwan Semiconductor Corporation ES1HH
- Part No.:
- ES1HH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES1HH.pdf
- Description:
- 35NS, 1A, 500V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:7,713
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Product details
Overview
ES1HH from Taiwan Semiconductor is a 1A, 500V super fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 35ns reverse recovery time, 1.70V max forward voltage at 1A/25°C, and AEC-Q101 qualification for automotive use in snubber and freewheeling circuits.
For engineers reviewing the ES1HH datasheet, ES1HH pinout, ES1HH application, or ES1HH equivalent, key selection criteria include repetitive peak reverse voltage (500V), junction-to-lead thermal resistance (35°C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance for automotive-grade production.
Technical Context
The ES1HH employs a glass passivated single-die silicon junction optimized for high-frequency switching in DC-DC converters and automotive lighting. Its 35ns trr and 18pF junction capacitance at 1MHz/4V support efficient energy recovery in flyback and clamp circuits.
Designed for automated placement and reflow soldering, the device meets JESD201 Class 2 whisker resistance and UL 94V-0 molding compound requirements, with cathode polarity indicated by a visible band on the DO-214AC body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 500 V - supports DC bus voltages up to 500V peak in automotive and industrial power supplies |
| IF | 1 A continuous - rated for sustained conduction in low-power switching applications |
| trr | 35 ns - enables high-frequency operation (>100 kHz) with minimal switching loss |
| VF (max) | 1.70 V @ 1A/25°C - determines conduction loss and thermal rise under load |
| RθJL | 35 °C/W - allows direct thermal path to PCB copper for effective heat dissipation |
| IR (max) | 100 µA @ 125°C - ensures low leakage in high-temperature freewheeling paths |
| MSL | Level 1 (J-STD-020) - no floor life limitation; suitable for standard SMT assembly without dry pack |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration with cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of circuit (e.g., switch node in buck converter) |
| Cathode | Current exit point during forward conduction | Marked with band; connected to higher-potential rail (e.g., output capacitor positive) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics including engine control modules and lighting drivers |
| Glass passivated junction | Enhances long-term reliability and humidity resistance in harsh under-hood environments |
| Super fast recovery (35 ns) | Reduces reverse recovery charge (Qrr), minimizing EMI and switching losses in high-frequency SMPS |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally regulated end equipment |
| Matte tin-plated leads | Ensures consistent solderability per J-STD-002, compatible with lead-free reflow profiles |
Applications
| Automotive LED Lighting | DC-DC Buck Converter Output Rectification |
|---|---|
Use Scenario: High-brightness LED headlamp driver with PWM dimming and thermal foldback. IC Role / Device Role / Timing Role: Freewheeling diode providing current path during MOSFET off-time in synchronous buck topology. Use Value: 35ns trr minimizes voltage overshoot and EMI during diode turn-off, preserving LED current regulation accuracy. | Use Scenario: 12V-to-5V step-down converter powering infotainment microcontrollers. IC Role / Device Role / Timing Role: Output rectifier handling 1A average current with intermittent 30A surge capability. Use Value: 500V VRRM provides margin against load-dump transients (ISO 7637-2 Pulse 5a), ensuring robustness in vehicle electrical systems. |
| Snubber Network in Ignition Coils | Industrial AC-DC Auxiliary Supply |
Use Scenario: RCD snubber across primary winding of gasoline engine ignition coil. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive kickback energy during transistor turn-off. Use Value: Low Qrr and 1.70V VF reduce snubber power dissipation, enabling compact heatsink-free design. | Use Scenario: Off-line auxiliary supply for PLC I/O module powered from 240VAC mains. IC Role / Device Role / Timing Role: Bridge rectifier leg in voltage-doubler configuration feeding 700V-rated bulk capacitor. Use Value: 500V VRRM and 30A IFSM withstand line surges and startup inrush, supporting >10-year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-ES1EH-M3/5BT | 400V VRRM, 1.30V VF max, same DO-214AC package | Limited to ≤400V systems; lower conduction loss but reduced transient margin | Select when system peak reverse voltage is ≤400V and lower VF is prioritized over surge robustness |
| ON Semiconductor MUR105G | 50V–1000V family; MUR105 = 50V, not 500V - correct variant is MUR110G (1000V), larger DO-41 package | DO-41 through-hole; incompatible footprint; higher trr (50ns) and RθJA (70°C/W) | Use only if through-hole assembly is required and board layout permits larger footprint and thermal derating |
Compared with VS-ES1EH-M3/5BT and MUR110G, the ES1HH uniquely balances 500V rating, 35ns trr, and DO-214AC SMT compatibility-enabling compact, automotive-qualified designs without sacrificing surge margin or thermal performance.
Availability
ES1HH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC converter output rectification, and snubber networks requiring stable component supply and AEC-Q101 compliance.
Supply support for ES1HH 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 ES1xH series was developed specifically for high-reliability, high-frequency rectification in automotive power systems-emphasizing AEC-Q101 qualification, fast recovery, and robust thermal performance in compact SMT packages.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for ES1HH?
The ES1HH has a maximum repetitive peak reverse voltage (VRRM) of 500 V, verified per Taiwan Semiconductor's official datasheet Version B2112. This rating ensures reliable blocking capability in automotive 12V/24V systems subject to load-dump transients up to ISO 7637-2 Pulse 5a. The ES1HH must not be operated beyond this voltage under any condition.
Is ES1HH qualified for automotive applications?
Yes, ES1HH is AEC-Q101 qualified, as explicitly stated in the "FEATURES" section of the Taiwan Semiconductor datasheet. This qualification covers stress testing for temperature cycling, humidity bias, and mechanical shock-making ES1HH suitable for under-hood and cabin automotive power electronics including lighting drivers and engine control subsystems.
What is the forward voltage (VF) specification for ES1HH at rated current?
The ES1HH has a maximum forward voltage of 1.70 V at 1 A forward current and 25°C junction temperature, per the "ELECTRICAL SPECIFICATIONS" table. This value is measured under pulse conditions (PW = 0.3 ms) and defines worst-case conduction loss for thermal design. At 125°C, VF decreases slightly due to negative temperature coefficient of silicon.
Does ES1HH have a defined moisture sensitivity level (MSL)?
Yes, ES1HH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and does not require dry-packaging or baking prior to reflow soldering. This simplifies manufacturing logistics and eliminates moisture-related popcorning risk during standard lead-free reflow profiles.
What package type is used for ES1HH and what are its key mechanical attributes?
ES1HH uses the DO-214AC (SMA) surface-mount package, with matte tin-plated leads solderable per J-STD-002, UL 94V-0 compliant molding compound, and cathode polarity marked by a visible band. Its weight is approximately 0.060 g, and it passes JESD201 Class 2 whisker testing for long-term interconnect reliability.
ES1HH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 500 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 500 V
- Capacitance @ Vr, F:
- 16pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1HH FAQ
1.How can I place an order for ES1HH through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1HH 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 ES1HH reliable?
The price and inventory of ES1HH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1HH is usually 5 days.
3.What payment methods are accepted for ES1HH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1HH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1HH?
ES1HH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1HH 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 ES1HH?
For technical support, including ES1HH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1HH requirements.
6.How does Aetrix verify that ES1HH is sourced from the original manufacturer or authorized distributors?
All ES1HH 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 ES1HH meets industry standards.
7.What is the process for return or replacement of ES1HH?
All ES1HH units undergo pre-shipment inspection (PSI). If there is an issue with ES1HH, 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 ES1HH part is unused and in its original packaging.
Return procedure for ES1HH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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