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Taiwan Semiconductor Corporation ESH3CH
- Part No.:
- ESH3CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
ESH3CH.pdf
- Description:
- 20NS, 3A, 150V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:2,950
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Product details
Overview
ESH3CH from Taiwan Semiconductor is a 150 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 snubber and freewheeling circuits.
For engineers reviewing the ESH3CH datasheet, ESH3CH pinout, ESH3CH application, or ESH3CH equivalent, key selection criteria include repetitive peak reverse voltage (150 V), junction-to-lead thermal resistance (12 °C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance for high-reliability automotive and DC-DC converter designs.
Technical Context
The ESH3CH employs a single-die, glass-passivated silicon junction optimized for ultra-fast switching with trr ≤ 20 ns under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A conditions. Its DO-214AB (SMC) package supports automated placement and delivers RθJL = 12 °C/W for efficient thermal transfer to PCB copper.
Designed for high-efficiency power conversion, the ESH3CH maintains IR ≤ 5 µA at 25°C and ≤ 150 µA at 125°C under rated VR, with CJ = 45 pF at 1 MHz and 4.0 V reverse bias - enabling stable performance in high-frequency snubber networks and freewheeling paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum repetitive reverse blocking voltage; defines safe operating range in 12–48 V automotive DC-DC stages |
| IF | 3 A continuous - average forward current rating; supports sustained conduction in 36 W (12 V × 3 A) freewheeling paths |
| trr | 20 ns - ultra-fast recovery time; minimizes switching losses and EMI in >100 kHz converters |
| VF | 0.9 V @ 3 A, 25°C - low forward drop; reduces conduction loss to ~2.7 W per device at full load |
| RθJL | 12 °C/W - junction-to-lead thermal resistance; enables direct heat sinking via PCB copper pour without heatsink |
| IR | 5 µA @ 25°C - low leakage; preserves efficiency in high-impedance snubber networks |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, cathode indicated by band, polarity-sensitive mounting, weight ≈ 0.200 g, UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to lower-potential node (e.g., switch node in buck freewheel path) |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to output rail or energy return path; blocks up to 150 V reverse |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive temperature cycling (-55°C to +175°C), vibration, and humidity stress - suitable for under-hood lighting and ADAS power supplies |
| Glass passivated junction | Enhances long-term reliability against moisture ingress and surface contamination in harsh environments |
| Low profile SMC package | Height ≤ 2.6 mm - enables compact layout in space-constrained engine control units and LED driver modules |
| J-STD-020 Level 1 MSL | No floor life limitation; supports standard reflow without baking - simplifies SMT line integration |
Applications
| Automotive LED Lighting | DC-DC Buck Converter Freewheeling |
|---|---|
Use Scenario: High-brightness LED headlamp driver with 24 V input and PWM dimming. IC Role / Device Role / Timing Role: Freewheeling diode during high-side MOSFET off-time in synchronous buck topology. Use Value: 20 ns trr and 0.9 V VF minimize switching loss and thermal rise, enabling >92% efficiency at 500 kHz switching frequency. | Use Scenario: 12 V to 5 V step-down converter powering infotainment microcontrollers. IC Role / Device Role / Timing Role: Output rectifier in non-synchronous buck stage. Use Value: 150 V VRRM provides 3× safety margin over 48 V transients; 125 A IFSM withstands load dump surges. |
| Snubber Network in Ignition Coil Driver | Industrial AC-DC Auxiliary Supply |
Use Scenario: RCD snubber across primary winding of gasoline engine ignition coil driver. IC Role / Device Role / Timing Role: Fast clamp diode absorbing inductive kickback energy. Use Value: 20 ns trr ensures rapid turn-on before voltage overshoot peaks; 45 pF CJ limits capacitive loading on gate drive loop. | Use Scenario: Auxiliary 24 V to 12 V isolated supply for PLC I/O modules. IC Role / Device Role / Timing Role: Secondary-side output rectifier in flyback converter. Use Value: AEC-Q101 qualification and -55°C to +175°C TJ range ensure operation in uncontrolled industrial enclosures with wide ambient swings. |
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-3EWH15 | Same DO-214AB package, 150 V VRRM, 3 A IF, but trr = 35 ns (vs. ESH3CH's 20 ns); VF = 0.95 V | Higher trr increases switching loss in >300 kHz designs; acceptable for <200 kHz automotive auxiliary supplies | Select VS-3EWH15 only if layout constraints prioritize vendor consolidation over peak efficiency |
| ON Semiconductor MUR315 | DO-214AC (SMA) package, 150 V VRRM, 3 A IF, trr = 35 ns, VF = 0.93 V; RθJA = 65 °C/W (vs. ESH3CH's 47 °C/W) | Smaller SMA package limits thermal dissipation; unsuitable for sustained 3 A conduction without forced air | Choose MUR315 only for low-power, space-limited prototypes where thermal margin exceeds 15°C |
Compared with VS-3EWH15 and MUR315, the ESH3CH delivers superior high-frequency efficiency due to its 20 ns trr and lower RθJA, while maintaining AEC-Q101 compliance and J-STD-020 Level 1 handling - making it optimal for production-grade automotive power stages requiring both reliability and thermal headroom.
Availability
ESH3CH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC converter freewheeling, and snubber network applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for ESH3CH 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 diodes, and MOSFETs for automotive and industrial markets.
The ESH3CH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier product line, engineered specifically for high-reliability, high-frequency power conversion in automotive subsystems such as lighting, body control, and ADAS power management.
FAQ
What is the maximum repetitive peak reverse voltage rating for ESH3CH?
The ESH3CH has a maximum repetitive peak reverse voltage (VRRM) rating of 150 V. This value is explicitly specified in the Absolute Maximum Ratings table for the ESH3CH variant within the ESH3BH–ESH3DH family datasheet. It defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions, making it suitable for 24 V and 48 V automotive systems with transient margin.
Is ESH3CH qualified for automotive applications?
Yes, the ESH3CH is AEC-Q101 qualified, as confirmed in the FEATURES section of the official Taiwan Semiconductor datasheet. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock - validating its suitability for under-hood and cabin automotive applications such as LED lighting drivers and engine control unit power supplies.
What is the thermal resistance from junction to lead for ESH3CH?
The junction-to-lead thermal resistance (RθJL) of the ESH3CH is 12 °C/W, per the THERMAL PERFORMANCE table in the datasheet. This parameter reflects how effectively heat transfers from the silicon die to the device leads, enabling efficient conduction into PCB copper planes - critical for maintaining TJ ≤ 175°C during 3 A continuous operation.
Does ESH3CH have a halogen-free construction?
Yes, the ESH3CH is halogen-free in accordance with IEC 61249-2-21, as stated in the FEATURES section. The molding compound contains no bromine, chlorine, or other regulated halogens, supporting environmental compliance requirements for automotive and industrial end equipment without compromising flame retardancy (UL 94V-0).
What is the reverse recovery time specification for ESH3CH?
The reverse recovery time (trr) of the ESH3CH is 20 ns maximum, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. This ultra-fast recovery characteristic is documented in the ELECTRICAL SPECIFICATIONS table and directly enables high-efficiency operation in switching frequencies above 300 kHz, such as in modern automotive DC-DC converters and LED driver circuits.
ESH3CH 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):
- 150 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 @ 150 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
ESH3CH FAQ
1.How can I place an order for ESH3CH through Aetrix?
Please submit a Request for Quotation (RFQ) for ESH3CH 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 ESH3CH reliable?
The price and inventory of ESH3CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH3CH is usually 5 days.
3.What payment methods are accepted for ESH3CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH3CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESH3CH?
ESH3CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESH3CH 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 ESH3CH?
For technical support, including ESH3CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH3CH requirements.
6.How does Aetrix verify that ESH3CH is sourced from the original manufacturer or authorized distributors?
All ESH3CH 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 ESH3CH meets industry standards.
7.What is the process for return or replacement of ESH3CH?
All ESH3CH units undergo pre-shipment inspection (PSI). If there is an issue with ESH3CH, 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 ESH3CH part is unused and in its original packaging.
Return procedure for ESH3CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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