Taiwan Semiconductor Corporation ES3HH
- Part No.:
- ES3HH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
ES3HH.pdf
- Description:
- 35NS, 3A, 500V, SUPER FAST RECOV
- Quantity:
- Payment:

- Shipping:

Inventory:4,657
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Product details
Overview
ES3HH from Taiwan Semiconductor is a 3A, 500V super fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 1.70V max forward voltage at 3A/25°C, 35ns reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in high-frequency DC-DC converters.
For engineers reviewing the ES3HH datasheet, ES3HH pinout, ES3HH application, or ES3HH equivalent, key selection criteria include its 500V VRRM, 100A IFSM, 150°C TJMAX, glass-passivated junction, and J-STD-020 Level 1 moisture sensitivity - critical for automotive lighting and industrial power supply designs.
Technical Context
The ES3HH employs a single-die silicon PN junction with glass passivation for enhanced reliability under thermal cycling and humidity stress. Its 35ns trr enables efficient operation in switching frequencies up to several hundred kHz, minimizing switching losses in flyback and boost topologies.
Thermally, it delivers RθJL = 12°C/W and RθJA = 47°C/W, supporting continuous 3A conduction at ambient temperatures ≤85°C with standard PCB copper area. The DO-214AB (SMC) package provides robust mechanical mounting and meets UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 500 V - blocks up to 500V repetitive reverse voltage, suitable for 400V DC bus applications with margin |
| IF | 3 A - continuous average forward current rating at TL = 75°C, defines steady-state power handling |
| VF (max) | 1.70 V @ 3A, 25°C - determines conduction loss and thermal rise in high-duty-cycle freewheeling paths |
| trr | 35 ns - enables high-frequency switching (>200 kHz) with low reverse recovery charge and EMI |
| IFSM | 100 A - withstands short-duration surge currents (8.3ms half-sine), critical for inrush and fault tolerance |
| TJMAX | 150 °C - supports operation in under-hood automotive environments and sealed industrial enclosures |
| CJ | 30 pF @ 1MHz, 4V - low junction capacitance minimizes capacitive coupling noise in snubber circuits |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); polarity must match PCB silkscreen |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to higher-potential rail (e.g., output capacitor positive); defines direction of freewheeling path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including temperature cycling, HTRB, and ESD, enabling use in ADAS and body control modules |
| Glass passivated junction | Prevents moisture ingress and metallization corrosion, extending lifetime in humid or condensing environments (e.g., engine bay, outdoor LED drivers) |
| Super fast recovery (35 ns) | Reduces reverse recovery energy loss and associated ringing, improving efficiency and easing EMI filter design in 100–500 kHz SMPS |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly lines without dry pack or floor life constraints |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU, supporting green manufacturing and export compliance |
Applications
| Automotive LED Headlamp Driver | Industrial DC-DC Isolated Converter |
|---|---|
Use Scenario: High-brightness LED array powered via constant-current buck-boost driver in vehicle headlamps, subject to load dump transients and wide ambient temperature swings. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified secondary-side circuit, conducting during low-side switch off-time. Use Value: 500V VRRM withstands ISO 7637-2 pulse 5a (load dump), while 35ns trr prevents cross-conduction loss and thermal runaway at 300 kHz switching. | Use Scenario: 24V-to-5V isolated flyback converter powering PLC I/O modules in factory automation cabinets. IC Role / Device Role / Timing Role: Output rectifier on secondary side, converting transformer AC to regulated DC output. Use Value: 3A IF rating and 12°C/W RθJL enable full-load operation without heatsink; glass passivation ensures long-term stability in dusty, vibration-prone environments. |
| Snubber Network in Motor Drive Inverter | Freewheeling Diode in Automotive HVAC Blower |
Use Scenario: RC-snubber across IGBTs in 12V/24V brushless DC motor inverters for HVAC or power steering, suppressing voltage spikes during turn-off. IC Role / Device Role / Timing Role: Fast-recovery clamp diode in RCD snubber, absorbing inductive energy and limiting dv/dt. Use Value: 35ns trr and 30pF CJ minimize snubber ringback and ensure clean clamping waveform, reducing EMI and gate drive stress. | Use Scenario: 12V blower motor controlled by PWM-driven MOSFET in automotive cabin HVAC system, requiring reliable freewheeling during PWM off-cycles. IC Role / Device Role / Timing Role: Unidirectional freewheeling path for motor back-EMF, placed in parallel with motor winding. Use Value: AEC-Q101 qualification and -55°C to +150°C TJ range guarantee startup at sub-zero temperatures and sustained operation at under-dash ambient >105°C. |
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-3EYH05-M3/45 | Same DO-214AB package, 500V VRRM, but 1.55V VF (typ) at 3A - 150mV lower conduction drop | Slightly lower thermal rise at full load; identical AEC-Q101 status and 35ns trr | Preferred where conduction loss dominates thermal budget, e.g., high-duty-cycle 12V systems |
| ON Semiconductor MUR350G | DO-201AD axial package (not SMD), 500V, 50ns trr, 1.75V VF - slower recovery and through-hole only | Not suitable for automated SMT assembly; requires board redesign and larger footprint | Only viable for legacy through-hole designs or prototyping where tape-and-reel SMT is unavailable |
Compared with VS-3EYH05-M3/45, ES3HH offers marginally higher VF but identical packaging and qualification; versus MUR350G, ES3HH enables automated manufacturing and superior high-frequency performance - making it optimal for new automotive and industrial SMT power designs.
Availability
ES3HH is available at Aetrix Electronics and suitable for automotive LED lighting, industrial DC-DC converters, and motor drive snubber circuits requiring stable component supply, AEC-Q101 compliance, and high-volume tape-and-reel delivery.
Supply support for ES3HH 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 global automotive, industrial, and consumer markets since 1979.
The ES3xH series is part of TSC's AEC-Q101-qualified super fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive and harsh-environment industrial applications.
FAQ
What is the maximum junction temperature rating for ES3HH?
The ES3HH has a maximum junction temperature (TJMAX) of +150°C, validated per AEC-Q101 stress testing. This allows the ES3HH to operate reliably in under-hood automotive environments and sealed industrial enclosures where ambient temperatures exceed 105°C, provided thermal design maintains junction temperature below this limit using the specified RθJL = 12°C/W path.
Is ES3HH suitable for use in automotive lighting applications?
Yes, ES3HH is explicitly qualified to AEC-Q101 and used in automotive LED headlamp drivers. Its 500V VRRM, 35ns reverse recovery time, and glass-passivated junction make the ES3HH well-suited for freewheeling and snubber roles in PWM-controlled LED drivers exposed to load dump transients and wide thermal cycling.
What does the "HH" suffix indicate in ES3HH?
The "HH" suffix in ES3HH denotes the 500V repetitive peak reverse voltage (VRRM) rating within the ES3xH family. Per the ordering table, ES3AH = 50V, ES3BH = 100V, ..., ES3HH = 500V, ES3JH = 600V - each variant shares identical package, current rating, and recovery characteristics but differs only in breakdown voltage.
Does ES3HH require baking before reflow soldering?
No, ES3HH has a J-STD-020 moisture sensitivity level (MSL) of Level 1, meaning it is not moisture-sensitive and may be stored and processed indefinitely at ambient conditions without baking or dry packing. This simplifies SMT line integration and eliminates floor-life tracking for the ES3HH.
What is the reverse recovery time (trr) specification for ES3HH?
The ES3HH has a maximum reverse recovery time (trr) of 35 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This ultra-fast recovery enables high-frequency switching in DC-DC converters and reduces switching losses - a key differentiator of the ES3HH versus standard fast or ultrafast rectifiers.
ES3HH 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):
- 500 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 500 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES3HH FAQ
1.How can I place an order for ES3HH through Aetrix?
Please submit a Request for Quotation (RFQ) for ES3HH 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 ES3HH reliable?
The price and inventory of ES3HH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3HH is usually 5 days.
3.What payment methods are accepted for ES3HH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3HH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES3HH?
ES3HH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES3HH 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 ES3HH?
For technical support, including ES3HH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3HH requirements.
6.How does Aetrix verify that ES3HH is sourced from the original manufacturer or authorized distributors?
All ES3HH 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 ES3HH meets industry standards.
7.What is the process for return or replacement of ES3HH?
All ES3HH units undergo pre-shipment inspection (PSI). If there is an issue with ES3HH, 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 ES3HH part is unused and in its original packaging.
Return procedure for ES3HH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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