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Taiwan Semiconductor Corporation ESH1CH
- Part No.:
- ESH1CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ESH1CH.pdf
- Description:
- 15NS, 1A, 150V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
ESH1CH from Taiwan Semiconductor is a 1 A, 150 V ultra-fast recovery surface-mount rectifier diode in DO-214AC (SMA) package, featuring 15 ns reverse recovery time, 0.9 V forward voltage at 1 A, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in high-frequency DC/DC converters and car lighting systems.
For engineers reviewing the ESH1CH datasheet, ESH1CH pinout, ESH1CH application, or ESH1CH equivalent, key selection criteria include its 150 V repetitive peak reverse voltage, ultra-fast 15 ns trr, AEC-Q101 compliance, thermal resistance (RθJL = 35 °C/W), and DO-214AC mechanical compatibility with automated SMT placement.
Technical Context
The ESH1CH is a single-die, planar passivated silicon PN junction rectifier optimized for high-efficiency switching applications. Its ultra-fast recovery (trr ≤ 15 ns) minimizes switching losses in 100–500 kHz DC/DC topologies, while glass passivation ensures stable junction performance under thermal cycling.
Designed for automotive environments, the ESH1CH operates across –55 °C to +175 °C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements - enabling robust reflow soldering without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in snubber or flyback clamp circuits |
| IF | 1 A continuous - Average forward current rating at TC = 75 °C; supports compact heatsinking in space-constrained automotive modules |
| trr | 15 ns - Measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables efficient operation in >200 kHz switching converters |
| VF | 0.9 V max at IF = 1 A, TJ = 25 °C - Low conduction loss improves system efficiency vs. standard fast recovery diodes |
| RθJL | 35 °C/W - Junction-to-lead thermal resistance; allows direct PCB copper pour thermal coupling without external heatsink |
| IR | 1 µA max at VR = 150 V, TJ = 25 °C - Low leakage preserves energy in standby and light-load conditions |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band. Matte tin-plated leads, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must handle 30 A surge (IFSM) |
| Cathode (Lead 2) | Forward current exit / reverse blocking terminal | Connected to higher-potential rail; blocks up to 150 V reverse voltage with <1 µA leakage at 25 °C |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements - supports deployment in engine control, lighting, and ADAS subsystems |
| Glass passivated junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in under-hood applications |
| Ultra-fast 15 ns trr | Reduces reverse recovery charge (Qrr) and associated switching losses - critical for high-frequency, high-efficiency DC/DC designs |
| DO-214AC (SMA) package | Standardized footprint compatible with JEDEC MS-013; enables drop-in replacement and automated pick-and-place at 7,500 pcs/reel |
Applications
| Automotive LED Lighting | DC/DC Converter Freewheeling |
|---|---|
Use Scenario: Constant-current LED driver in headlamp or DRL module with 200–500 kHz PWM switching. IC Role / Device Role / Timing Role: Freewheeling path for inductive current during MOSFET off-time; clamps inductive kick and recovers before next cycle. Use Value: 15 ns trr prevents cross-conduction loss and thermal runaway; 175 °C TJ rating sustains operation near hot LED heatsinks. | Use Scenario: Secondary-side rectification in isolated 48 V–12 V buck-derived DC/DC converter for infotainment power supply. IC Role / Device Role / Timing Role: Unidirectional current path during synchronous rectifier dead-time; blocks reverse voltage during primary switch conduction. Use Value: 0.9 V VF reduces conduction loss vs. Schottky alternatives at >85 °C ambient; RθJL = 35 °C/W enables direct thermal transfer to PCB ground plane. |
| Snubber Network | Engine Control Unit (ECU) Protection |
Use Scenario: RCD snubber across high-side IGBT in fuel injector driver circuit. IC Role / Device Role / Timing Role: Fast recovery path for snubber capacitor discharge; absorbs turn-off energy and suppresses voltage overshoot. Use Value: 30 A IFSM withstands transient surges during fault events; 150 V VRRM matches typical 48 V system bus derating. | Use Scenario: Reverse polarity and inductive load protection in 12 V ECU power input stage. IC Role / Device Role / Timing Role: Input polarity guard and back-EMF clamp for solenoid drivers and sensor interfaces. Use Value: AEC-Q101 qualification ensures survivability over 15-year vehicle lifetime; 1 µA IR prevents battery drain in always-on modules. |
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-1EWH01-M3/5AT | Same DO-214AC package, 100 V VRRM, 12 ns trr, VF = 0.89 V - lower voltage rating, slightly faster recovery | Best suited for 24–48 V systems where 150 V margin is unnecessary; not rated for AEC-Q101 | Select when prioritizing minimal trr over automotive qualification and higher voltage headroom |
| ON Semiconductor MUR1150 | DO-41 through-hole, 150 V VRRM, 35 ns trr, VF = 0.92 V - slower recovery, different package, no AEC-Q101 | Acceptable for industrial non-automotive DC/DC where board space and reflow compatibility are not constraints | Choose only if DO-214AC SMT assembly is unavailable and thermal design accommodates higher trr losses |
Compared with VS-1EWH01-M3/5AT and MUR1150, the ESH1CH uniquely combines AEC-Q101 qualification, 150 V blocking, 15 ns trr, and DO-214AC SMT compatibility - making it the only option qualified for automotive front-end power stages requiring both reliability and high-frequency efficiency.
Availability
ESH1CH is available at Aetrix Electronics and suitable for automotive LED lighting, DC/DC converter freewheeling, and snubber applications requiring stable component supply, AEC-Q101 compliance, and consistent DO-214AC packaging.
Supply support for ESH1CH 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 ESH1CH belongs to TSC's AEC-Q101-certified ultra-fast rectifier family, engineered specifically for high-reliability automotive power conversion where low trr, thermal robustness, and SMT manufacturability are mandatory.
FAQ
What is the maximum junction temperature rating for the ESH1CH?
The ESH1CH has a maximum junction temperature (TJ) rating of +175 °C, verified per AEC-Q101 stress testing. This allows sustained operation in under-hood automotive environments and near high-power LEDs. The device maintains specified electrical parameters up to this limit, and its thermal resistance (RθJL = 35 °C/W) supports effective heat transfer to the PCB. Always reference the forward current derating curve in the ESH1CH datasheet when designing for elevated ambient temperatures.
Is the ESH1CH pin-compatible with other DO-214AC rectifiers like the 1N4007 or MUR110?
No - the ESH1CH is not functionally or pin-compatible with legacy rectifiers such as the 1N4007 (DO-41) or MUR110 (DO-41). While all three are single-diode rectifiers, the ESH1CH uses DO-214AC (SMA) packaging with specific anode/cathode lead geometry and ultra-fast recovery characteristics. The 1N4007 and MUR110 use through-hole DO-41 packages and exhibit much slower recovery (µs vs. ns). Substitution requires PCB layout revision and validation of switching loss impact.
Does the ESH1CH require special handling or baking prior to reflow soldering?
No - the ESH1CH is rated at Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it can be stored indefinitely at ≤30 °C/60% RH and placed directly into reflow without baking or dry-pack requirements. Its matte tin-plated leads comply with J-STD-002 for solderability, and the package withstands standard lead-free reflow profiles (peak 260 °C). This simplifies manufacturing for high-volume automotive SMT lines.
What is the marking code printed on the ESH1CH device body?
The ESH1CH is marked with "ESH1C" on the device body, per the ordering information table in the official Taiwan Semiconductor datasheet. This 5-character laser marking appears adjacent to the cathode band and distinguishes it from ESH1BH (marked "ESH1B") and ESH1DH (marked "ESH1D"). The "H" suffix in the full part number denotes tape-and-reel packaging (7,500 pcs/reel), not a functional variant.
How does the ESH1CH's reverse recovery time compare to standard fast recovery diodes?
The ESH1CH achieves a maximum reverse recovery time (trr) of 15 ns under standardized test conditions (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A), which is significantly faster than standard fast recovery diodes (typically 50–200 ns). This ultra-fast recovery reduces switching losses and EMI generation in high-frequency converters. Unlike standard diodes, the ESH1CH's trr remains stable across temperature and current - a key advantage confirmed in its characterization curves.
ESH1CH 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):
- 150 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 15 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 150 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 ~ 175°C
ESH1CH FAQ
1.How can I place an order for ESH1CH through Aetrix?
Please submit a Request for Quotation (RFQ) for ESH1CH 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 ESH1CH reliable?
The price and inventory of ESH1CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH1CH is usually 5 days.
3.What payment methods are accepted for ESH1CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH1CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESH1CH?
ESH1CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESH1CH 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 ESH1CH?
For technical support, including ESH1CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH1CH requirements.
6.How does Aetrix verify that ESH1CH is sourced from the original manufacturer or authorized distributors?
All ESH1CH 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 ESH1CH meets industry standards.
7.What is the process for return or replacement of ESH1CH?
All ESH1CH units undergo pre-shipment inspection (PSI). If there is an issue with ESH1CH, 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 ESH1CH part is unused and in its original packaging.
Return procedure for ESH1CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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