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Taiwan Semiconductor Corporation ESH3DH
- Part No.:
- ESH3DH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
ESH3DH.pdf
- Description:
- 20NS, 3A, 200V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
ESH3DH from Taiwan Semiconductor is a 200 V, 3 A 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 AEC-Q101 qualification for automotive-grade reliability-used in car lighting freewheeling and DC-DC snubber circuits.
For engineers reviewing the ESH3DH datasheet, ESH3DH pinout, ESH3DH application, or ESH3DH equivalent, key selection criteria include peak reverse voltage rating (200 V), ultra-fast trr (≤20 ns), thermal resistance (RθJL = 12 °C/W), AEC-Q101 compliance, and DO-214AB mechanical compatibility with automated SMT assembly.
Technical Context
The ESH3DH is a single-die, glass-passivated silicon junction rectifier optimized for high-frequency switching applications. Its ultra-fast recovery (trr ≤ 20 ns) minimizes switching losses in DC-DC converters and snubbers, while the 200 V VRRM rating supports higher bus voltage designs in automotive lighting and power supplies.
Thermally, it delivers RθJL = 12 °C/W and RθJA = 47 °C/W, enabling sustained 3 A conduction at TJ up to 175 °C. The cathode-band polarity marking and matte tin-plated leads ensure reliable solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse blocking voltage; defines usable DC bus or transient clamp level in 24 V/48 V automotive systems |
| IF | 3 A continuous - Rated average forward current at TL = 75 °C; supports compact heatsink-free operation in low-power converters |
| trr | ≤20 ns - Ultra-fast reverse recovery enables >100 kHz switching without excessive diode loss or EMI generation |
| VF | ≤0.9 V @ 3 A, 25 °C - Low conduction loss improves efficiency in high-duty-cycle freewheeling paths |
| RθJL | 12 °C/W - Enables direct thermal transfer to PCB copper; critical for thermal management in sealed automotive modules |
| AEC-Q101 | Qualified - Validated for automotive underhood temperature cycling, humidity bias, and mechanical shock per stress test requirements |
Pinout & Package
Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, cathode indicated by band, UL 94V-0 rated compound, weight ≈ 0.200 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires adequate copper pour for thermal dissipation |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); polarity must match PCB silkscreen and layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in automotive underhood environments |
| Ultra-fast trr ≤20 ns | Reduces reverse recovery charge (Qrr) and associated switching loss-critical for high-efficiency 100–500 kHz DC-DC topologies |
| DO-214AB (SMC) package | Supports automated pick-and-place; low profile (<1.7 mm height) fits tight board spacing in LED driver modules |
| AEC-Q101 qualification | Validates suitability for automotive safety-critical subsystems including adaptive front lighting and body control modules |
Applications
| Automotive LED Headlamp Driver | 48 V DC-DC Buck Converter |
|---|---|
Use Scenario: Freewheeling path in constant-current LED driver operating at 200 kHz switching frequency with 150 °C ambient underhood conditions. IC Role / Device Role / Timing Role: Ultra-fast rectifier providing low-loss current return path during high-side MOSFET off-time; replaces slower FR-type diodes to reduce heat buildup. Use Value: 20 ns trr and 0.9 V VF cut conduction + switching losses by ≥18% vs. standard fast recovery diodes, extending LED module lifetime. | Use Scenario: Output rectification in isolated 48 V-to-12 V synchronous buck converter powering ADAS sensors. IC Role / Device Role / Timing Role: Secondary-side unidirectional current valve; handles 3 A average load with minimal voltage overshoot during turn-off due to low Qrr. Use Value: 200 V VRRM provides 2× margin over 48 V nominal bus, enabling robust operation during load dump transients up to 87 V. |
| Snubber Network in Ignition Coil Driver | Freewheeling Diode in Automotive HVAC Blower |
Use Scenario: RC snubber across IGBT collector-emitter in gasoline engine ignition coil driver, absorbing inductive kick energy. IC Role / Device Role / Timing Role: Fast clamping diode limiting voltage rise rate (dv/dt) during IGBT turn-off; conducts brief high-peak current pulses. Use Value: 125 A IFSM withstands repetitive 100 A surge peaks; 20 ns trr ensures clean voltage clamping without oscillation. | Use Scenario: Freewheeling path across brushed DC motor winding in climate control blower, operating continuously at 85 °C ambient. IC Role / Device Role / Timing Role: Unidirectional current path during PWM off-period; dissipates stored inductive energy as heat in the diode junction. Use Value: 175 °C TJMAX and RθJL = 12 °C/W allow full 3 A rating without derating in confined HVAC housing. |
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-3EWH02-M3/45 | 200 V VRRM, 3 A IF, trr = 25 ns, same DO-214AB package, but not AEC-Q101 qualified | Acceptable for industrial DC-DC; unsuitable for automotive safety-critical use without additional qualification | Select when AEC-Q101 is not required and 5 ns slower trr is acceptable in <100 kHz designs |
| ON Semiconductor MUR320G | 200 V VRRM, 3 A IF, trr = 35 ns, TO-220AC package (not surface-mount), AEC-Q101 qualified | Requires through-hole assembly and heatsinking; incompatible with SMT-only production lines | Select only if legacy TO-220 footprint exists and board rework for SMC is not feasible |
Compared with VS-3EWH02-M3/45 and MUR320G, the ESH3DH uniquely combines AEC-Q101 qualification, DO-214AB SMT compatibility, and 20 ns trr-making it the only option meeting all three requirements for next-generation automotive LED drivers and compact 48 V power modules.
Availability
ESH3DH is available at Aetrix Electronics and suitable for automotive LED lighting, 48 V DC-DC conversion, and snubber networks requiring stable component supply across multi-year vehicle production programs.
Supply support for ESH3DH 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 automotive-qualified components.
The ESH3DH belongs to TSC's AEC-Q101-certified ultra-fast rectifier family, engineered specifically for high-reliability automotive power conversion where thermal robustness, fast switching, and SMT manufacturability are mandatory.
FAQ
What is the maximum junction temperature rating for ESH3DH?
The ESH3DH has a maximum junction temperature (TJMAX) of +175 °C, validated per AEC-Q101 stress testing. This allows uninterrupted 3 A operation in high-ambient environments such as automotive underhood applications. Derating begins above 75 °C lead temperature, and the device maintains full specification compliance up to its TJMAX limit. Thermal design must account for RθJL = 12 °C/W to ensure safe operation in the ESH3DH's target applications.
Is ESH3DH pin-compatible with ESH3BH or ESH3CH?
Yes, ESH3DH shares identical DO-214AB (SMC) package dimensions, pinout, and mounting footprint with ESH3BH and ESH3CH. All three variants differ only in VRRM rating (100 V, 150 V, 200 V respectively) and corresponding marking code (ESH3B/ESH3C/ESH3D). No PCB layout change is needed when upgrading from ESH3BH or ESH3CH to ESH3DH for higher voltage margin.
Does ESH3DH meet RoHS and halogen-free requirements?
Yes, ESH3DH is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants, and the matte tin-plated leads satisfy EU RoHS Directive 2011/65/EU and JEDEC JS709 standards. Certificate of Compliance is available upon request from Aetrix Electronics for ESH3DH shipments.
What is the reverse recovery time (trr) test condition for ESH3DH?
The ESH3DH reverse recovery time is specified as ≤20 ns under the condition: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, measured per JEDEC standard test circuit. This reflects real-world performance in high-frequency switching applications like automotive LED drivers. The value is guaranteed maximum-not typical-and applies across the full operating temperature range.
Can ESH3DH be used in place of a standard FR107 diode?
No-ESH3DH is not a drop-in replacement for FR107. While both are DO-214AB rectifiers, FR107 has 1000 V VRRM and ~500 ns trr, whereas ESH3DH offers only 200 V VRRM but 20 ns trr. Substituting ESH3DH for FR107 in high-voltage AC line applications risks catastrophic failure. ESH3DH is intended for low-voltage, high-frequency DC-DC and automotive use-not mains rectification.
ESH3DH 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):
- 200 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 @ 200 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
ESH3DH FAQ
1.How can I place an order for ESH3DH through Aetrix?
Please submit a Request for Quotation (RFQ) for ESH3DH 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 ESH3DH reliable?
The price and inventory of ESH3DH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH3DH is usually 5 days.
3.What payment methods are accepted for ESH3DH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH3DH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESH3DH?
ESH3DH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESH3DH 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 ESH3DH?
For technical support, including ESH3DH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH3DH requirements.
6.How does Aetrix verify that ESH3DH is sourced from the original manufacturer or authorized distributors?
All ESH3DH 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 ESH3DH meets industry standards.
7.What is the process for return or replacement of ESH3DH?
All ESH3DH units undergo pre-shipment inspection (PSI). If there is an issue with ESH3DH, 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 ESH3DH part is unused and in its original packaging.
Return procedure for ESH3DH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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