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Taiwan Semiconductor Corporation 1.5SMC62H
- Part No.:
- 1.5SMC62H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC62H.pdf
- Description:
- 1500W, 62V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:8,479
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Product details
Overview
1.5SMC62H from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 50.2V working stand-off voltage, and 89.0V maximum clamping voltage at 17A peak impulse current. It provides ESD and surge protection for DC power rails and signal lines in automotive and industrial control systems.
For engineers reviewing the 1.5SMC62H datasheet, 1.5SMC62H pinout, 1.5SMC62H application, or 1.5SMC62H equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, leakage current at operating voltage, AEC-Q101 qualification status, and thermal resistance (RθJA = 50°C/W) for board-level power dissipation planning.
Technical Context
The 1.5SMC62H operates as a unidirectional avalanche diode with glass-passivated junction, delivering sub-nanosecond response (<1.0 ps) to transients per ISO 7637-2 Pulse 1/2a/2b/3a/3b. Its breakdown voltage range is 55.8–68.2 V at 1.0 mA test current, with temperature coefficient of 0.104 %/°C.
Designed for automated SMT placement, it features matte tin-plated leads compliant with J-STD-002, JESD 201 Class 2 whisker resistance, and UL 94V-0 molding compound. Polarity is marked by cathode band; moisture sensitivity level is J-STD-020 Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 50.2 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit DC bias. |
| VBR min/max | 55.8 V / 68.2 V at 1.0 mA - Confirmed avalanche onset range; ensures reliable triggering above system nominal voltage. |
| VC @ IPPM | 89.0 V at 17 A - Clamped voltage during 10/1000 µs surge; defines worst-case overvoltage seen by downstream ICs. |
| IR @ VWM | <1 µA - Ultra-low leakage preserves battery life and avoids false triggers in high-impedance sensing nodes. |
| PPK | 1500 W - Peak pulse power handling per 1 ms waveform; supports robust immunity to load dump and lightning-induced surges. |
| RθJA | 50 °C/W - Junction-to-ambient thermal resistance; enables thermal design for sustained surge duty cycles on standard FR-4 PCBs. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, single-die unidirectional configuration. Cathode indicated by molded band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage rail; forms return path for clamped surge current. |
| Cathode | Protected line input | Connected to line being protected (e.g., 48V supply); blocks normal operation but avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, and HAST - enables use in engine control, ADAS, and body modules. |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under thermal cycling and humidity exposure - critical for 15+ year service life in industrial equipment. |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (wiring harness noise) - satisfies OEM EMC validation requirements. |
| Fast response time | <1.0 ps typical - clamps before sensitive logic or analog circuits experience damaging overvoltage - essential for protecting CAN, LIN, and sensor interfaces. |
| Moisture sensitivity Level 1 | No floor life limitation or bake requirement before reflow - simplifies manufacturing logistics and reduces assembly cost. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 48V battery-fed ECUs against load dump transients up to ±100V per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 48V rail and chassis ground to clamp positive surges while blocking reverse conduction. Use Value: Limits peak voltage to 89.0 V at 17 A, ensuring downstream PMICs and microcontrollers remain within absolute maximum ratings. | Use Scenario: Safeguarding analog inputs of 24V PLC I/O modules from ESD events and field-wiring induced spikes. IC Role / Device Role / Timing Role: Standoff protector on signal line with 50.2 V VWM, positioned upstream of precision op-amp front-end. Use Value: Sub-1 µA leakage at 24 V prevents measurement drift; 89.0 V clamping prevents latch-up in SAR ADC drivers. |
| Telecom DC Power Input Protection | Motor Drive Control Signal Protection |
Use Scenario: Shielding PoE-powered switch ports from lightning-induced surges entering via Ethernet cables. IC Role / Device Role / Timing Role: Primary TVS on 54V DC input stage, coordinated with secondary GDT or MOV for staged energy absorption. Use Value: 1500 W peak power rating handles multi-kA induced currents; DO-214AB footprint supports high-current PCB trace routing. | Use Scenario: Securing gate drive signals of IGBTs in HVAC inverter drives exposed to cross-talk and Miller-induced spikes. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on isolated gate driver output (e.g., 15 V logic rail). Use Value: 0.104 %/°C VBR tempco ensures stable clamping across -40°C to +125°C ambient; fast response prevents false turn-on. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | 64 V VBR min (vs. 55.8 V), 6.5 W steady-state power (same), DO-214AA package (smaller than DO-214AB) | Lower peak power rating (600 W vs. 1500 W); suited for lower-energy transients in consumer-grade designs | Select SMBJ64A only when surge energy is limited to <100 mJ and board space constraints prohibit DO-214AB. |
| 1.5KE62A | Through-hole TO-204AA (DO-41) package; identical VBR range and PPK rating but no AEC-Q101 qualification | Not suitable for automotive SMT production; requires wave soldering and larger PCB real estate | Choose 1.5KE62A only for legacy through-hole industrial controls where rework tolerance and manual assembly are acceptable. |
Compared with SMBJ64A and 1.5KE62A, the 1.5SMC62H uniquely combines AEC-Q101 qualification, 1500 W surge capacity in surface-mount form, and <1 µA leakage - making it the only option qualified for high-reliability automotive power rail protection requiring zero layout change from reference designs.
Availability
1.5SMC62H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, telecom DC input safeguarding, and motor drive control signal shielding requiring stable component supply and full traceability.
Supply support for 1.5SMC62H 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101-compliant production lines.
The 1.5SMCxxH series was developed specifically for high-power, surface-mount transient suppression in automotive and industrial environments where reliability under thermal and electrical stress is non-negotiable.
FAQ
What is the polarity configuration of the 1.5SMC62H?
The 1.5SMC62H is a unidirectional TVS diode with cathode indicated by a molded band on the DO-214AB package. It conducts only during positive transients on the cathode side relative to anode, making it ideal for DC rail protection where reverse voltage is not expected. This differs from bidirectional variants like 1.5SMC62AH, which protect both polarities.
Does the 1.5SMC62H meet automotive qualification standards?
Yes, the 1.5SMC62H is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements. Its glass-passivated junction, J-STD-020 Level 1 moisture sensitivity, and 150°C maximum junction temperature confirm suitability for under-hood and chassis-mounted automotive applications.
What is the maximum clamping voltage of the 1.5SMC62H under surge conditions?
The 1.5SMC62H has a maximum clamping voltage (VC) of 89.0 V at 17 A peak impulse current (IPPM) for a 10/1000 µs waveform. This value is guaranteed across temperature and lifetime, and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
How does the 1.5SMC62H compare to the 1.5SMC62AH variant?
The 1.5SMC62AH is the bidirectional version with symmetric breakdown (58.9–65.1 V) and slightly lower clamping voltage (85.0 V at 18 A). The 1.5SMC62H is unidirectional (55.8–68.2 V), optimized for DC rail protection where polarity is fixed; its higher VBR max allows tighter margin above nominal voltage without premature conduction.
What is the thermal resistance of the 1.5SMC62H and how does it affect PCB layout?
The 1.5SMC62H has a junction-to-ambient thermal resistance (RθJA) of 50°C/W under standard JEDEC test conditions. To maintain TJ ≤ 150°C during repetitive surges, PCB copper area and via count under the SMC pad must be sized accordingly - typically ≥ 100 mm² of 2 oz copper with ≥ four 0.3 mm vias per pad for sustained 10 Hz surge duty.
1.5SMC62H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 50.2V
- Voltage - Breakdown (Min):
- 55.8V
- Voltage - Clamping (Max) @ Ipp:
- 89V
- Current - Peak Pulse (10/1000µs):
- 17A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC62H FAQ
1.How can I place an order for 1.5SMC62H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC62H 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 1.5SMC62H reliable?
The price and inventory of 1.5SMC62H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC62H is usually 5 days.
3.What payment methods are accepted for 1.5SMC62H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC62H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC62H?
1.5SMC62H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC62H 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 1.5SMC62H?
For technical support, including 1.5SMC62H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC62H requirements.
6.How does Aetrix verify that 1.5SMC62H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC62H 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 1.5SMC62H meets industry standards.
7.What is the process for return or replacement of 1.5SMC62H?
All 1.5SMC62H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC62H, 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 1.5SMC62H part is unused and in its original packaging.
Return procedure for 1.5SMC62H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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