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Taiwan Semiconductor Corporation 1.5SMC62AH
- Part No.:
- 1.5SMC62AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC62AH.pdf
- Description:
- TVS DIODE 53VWM 85VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,714
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Product details
Overview
1.5SMC62AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 62V nominal breakdown voltage (58.9–65.1V), 1500W peak pulse power rating, 85.0V maximum clamping voltage at 18A, and DO-214AB (SMC) package - used in automotive power supply rail protection and industrial I/O interface hardening.
For engineers reviewing the 1.5SMC62AH datasheet, 1.5SMC62AH pinout, 1.5SMC62AH application, or 1.5SMC62AH equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, leakage current ≤1µA at 53.0V working stand-off, AEC-Q101 qualification, and thermal resistance (RθJA = 50°C/W) for board-level reliability assessment.
Technical Context
The 1.5SMC62AH operates as a unidirectional avalanche diode with glass-passivated junction, enabling fast response (<1.0ps) to ESD and lightning-induced transients. Its single-die DO-214AB construction supports automated placement and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
It delivers 1500W peak pulse power per 1ms waveform (per Fig.5), with steady-state power dissipation of 6.5W at 25°C ambient. Thermal performance is defined by RθJC = 15°C/W and RθJA = 50°C/W, supporting operation from –55°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 58.9V / 65.1V - ensures reliable avalanche conduction onset within specified tolerance at 1mA test current |
| VWM | 53.0V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 85.0V at 18A - clamping voltage limiting downstream circuit stress during 10/1000µs surge events |
| IR @ VWM | ≤1µA - ultra-low leakage preserves signal integrity and battery life in always-on systems |
| PPK | 1500W - handles high-energy transients per ISO 7637-2 without failure |
| TJ max | +150°C - enables use in under-hood automotive and high-temperature industrial environments |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 0.210g mass and UL 94V-0 molding compound |
Pinout & Package
Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, cathode band marking for polarity identification. Weight: 0.210g. Meets J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected line in unidirectional clamp configuration | Accepts surge current during reverse transient; must be routed with low-inductance path to ground reference |
| Cathode | Current exit terminal in forward bias; tied to system ground or low-impedance return path | Provides low-impedance discharge path for transients; cathode band identifies orientation on PCB silkscreen |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics applications requiring zero defect reliability over temperature and lifetime |
| Clamping voltage ≤85.0V at 18A | Ensures protected ICs (e.g., CAN transceivers, microcontrollers) remain below absolute maximum ratings during ISO 7637-2 Pulse 5a surges |
| Leakage <1µA at 53.0V | Minimizes standby power loss in battery-powered sensors and enables stable biasing in precision analog front-ends |
| Response time <1.0ps | Engages before ESD pulses (IEC 61000-4-2) damage sensitive gate oxides in MOSFET drivers and logic inputs |
| Moisture sensitivity Level 1 | Eliminates bake requirement prior to reflow, reducing manufacturing cost and avoiding thermal stress on adjacent components |
Applications
| Automotive Power Rail Protection | Industrial PLC Digital I/O |
|---|---|
Use Scenario: 12V/24V battery-fed ECUs exposed to load dump and alternator ripple. IC Role / Device Role: Primary overvoltage clamp on main power input, placed upstream of LDOs and DC-DC controllers. Use Value: Limits transient excursions to ≤85.0V, preventing latch-up or permanent damage to 3.3V/5V domain regulators and microcontrollers. |
Use Scenario: 24V digital input modules receiving signals from field sensors and switches. IC Role / Device Role: Input-stage TVS protecting optocoupler LED anodes and Schmitt-trigger inputs against inductive kickback and ESD. Use Value: Withstands repeated 1kV/500A surges per IEC 61000-4-4 while maintaining <1µA leakage to preserve input threshold accuracy. |
| Telecom Line Interface | Consumer USB Port ESD Guard |
Use Scenario: RS-485 transceivers in base station backhaul links subjected to lightning-induced common-mode surges. IC Role / Device Role: Unidirectional TVS on VCC rail and data line terminations to shunt energy before it couples into differential receivers. Use Value: 1500W rating and 50°C/W thermal resistance enable sustained operation in sealed outdoor enclosures without derating. |
Use Scenario: USB 2.0 Type-A receptacles in smart home hubs exposed to human-body-model ESD events. IC Role / Device Role: Secondary protection device after polymer PTC, clamping fast-rising ESD pulses before they reach USB PHY transceivers. Use Value: Sub-nanosecond response captures >90% of 15kV HBM energy, reducing PHY reset rate and improving plug/unplug cycle reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | 64V VBR range (57.6–64.0V), 600W PPK, DO-214AA (SMB) package | Lower power handling; suitable only for sub-1kV surge environments | Select when board space is constrained and peak surge energy is ≤600W (e.g., consumer USB, low-voltage sensor nodes) |
| 1.5KE68A | 68V VBR (61.2–74.8V), 1500W PPK, axial DO-15 package | Through-hole mounting; higher RθJA (~65°C/W) limits high-density layout use | Choose for legacy through-hole designs or where manual repair/rework is required; not recommended for automated SMT lines |
Compared with SMBJ64A and 1.5KE68A, the 1.5SMC62AH offers optimal balance of 1500W surge capacity, SMT compatibility, AEC-Q101 qualification, and 85.0V clamping - making it preferred for new automotive and industrial designs requiring both high reliability and high-volume manufacturability.
Availability
1.5SMC62AH is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial PLC digital input modules, telecom RS-485 interfaces, and consumer USB port ESD protection requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC62AH 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 product lines.
The 1.5SMC62AH belongs to TSC's high-power surface-mount TVS family engineered for robustness in harsh electromagnetic environments, targeting automotive, industrial control, and infrastructure equipment where ISO 7637-2 compliance and long-term parametric stability are mandatory.
FAQ
What is the breakdown voltage tolerance of the 1.5SMC62AH?
The 1.5SMC62AH has a guaranteed breakdown voltage range of 58.9V to 65.1V at 1mA test current (VBR), measured per ANSI/IEEE C62.35 standards. This ±5% tolerance ensures consistent clamping behavior across production lots and supports design margining for worst-case overvoltage conditions in 48V and 24V automotive systems.
Is the 1.5SMC62AH suitable for bidirectional transient protection?
No - the 1.5SMC62AH is a unidirectional TVS diode intended for DC power line or single-polarity signal protection. For bidirectional applications such as AC lines or differential buses, TSC offers the 1.5SMC62CAH variant with symmetrical clamping in both directions; the "AH" suffix alone denotes unidirectional construction with cathode band polarity marking.
Does the 1.5SMC62AH require derating at elevated ambient temperatures?
Yes - the 1.5SMC62AH must be derated above 25°C ambient per its Pulse Derating Curve (Fig.2). At 85°C ambient, its 1500W peak pulse power drops to approximately 900W. Designers must verify clamping performance under worst-case thermal conditions using RθJA = 50°C/W and ensure PCB copper area supports heat dissipation during repetitive surge events.
What is the maximum clamping voltage of the 1.5SMC62AH under standard test conditions?
The 1.5SMC62AH exhibits a maximum clamping voltage (VC) of 85.0V at 18A peak pulse current (IPPM) using the 10/1000µs waveform defined in Fig.5. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during standardized surge testing per IEC 61000-4-5.
How does the 1.5SMC62AH compare to the 1.5SMC62H in terms of electrical performance?
The 1.5SMC62AH offers tighter breakdown voltage tolerance (58.9–65.1V vs. 55.8–68.2V for 1.5SMC62H) and lower clamping voltage (85.0V vs. 89.0V at rated IPPM). Both share identical package, power rating, and AEC-Q101 qualification, but the "A" grade provides improved consistency for designs requiring precise voltage threshold control in safety-critical subsystems.
1.5SMC62AH 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):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 18A
- 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)
1.5SMC62AH FAQ
1.How can I place an order for 1.5SMC62AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC62AH 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 1.5SMC62AH reliable?
The price and inventory of 1.5SMC62AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC62AH is usually 5 days.
3.What payment methods are accepted for 1.5SMC62AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC62AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC62AH?
1.5SMC62AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC62AH 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 1.5SMC62AH?
For technical support, including 1.5SMC62AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC62AH requirements.
6.How does Aetrix verify that 1.5SMC62AH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC62AH 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 1.5SMC62AH meets industry standards.
7.What is the process for return or replacement of 1.5SMC62AH?
All 1.5SMC62AH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC62AH, 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 1.5SMC62AH part is unused and in its original packaging.
Return procedure for 1.5SMC62AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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