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Taiwan Semiconductor Corporation 1.5SMC16AH
- Part No.:
- 1.5SMC16AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16AH.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,950
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Product details
Overview
1.5SMC16AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 15.2–16.8 V breakdown voltage (VBR), 13.6 V working stand-off voltage (VWM), 22.5 V maximum clamping voltage (VC) at 70 A peak pulse current, and 1500 W peak pulse power rating per 10/1000 µs waveform - deployed in telecom interfaces, automotive control modules, and industrial I/O protection circuits.
For engineers reviewing the 1.5SMC16AH datasheet, 1.5SMC16AH pinout, 1.5SMC16AH application, or 1.5SMC16AH equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, AEC-Q101 qualification status, DO-214AB (SMC) package thermal resistance (RθJC = 15 °C/W), and leakage current ≤1 µA at 13.6 V.
Technical Context
The 1.5SMC16AH operates as a unidirectional avalanche diode with glass-passivated junction, optimized for fast transient suppression (<1.0 ps response time) in automotive and industrial environments. Its electrical behavior follows ANSI/IEEE C62.35 standards, with bidirectional variants requiring CH/CAH suffixes - not applicable to this unidirectional part.
Thermal design relies on its DO-214AB package delivering RθJA = 50 °C/W and RθJC = 15 °C/W, enabling reliable operation up to TJ = +150 °C. The device sustains 200 A non-repetitive forward surge (IFSM) and exhibits <0.086 %/°C temperature coefficient of VBR, ensuring stable clamping across ambient ranges from –55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V - defines minimum and maximum voltage at which avalanche conduction begins reliably at 1 mA test current |
| VWM | 13.6 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPPM | 22.5 V at 70 A - clamping voltage during 10/1000 µs surge, limiting downstream circuit stress |
| PPK | 1500 W - peak pulse power handling capability per single 10/1000 µs transient event |
| IR @ VWM | ≤1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +150 °C - maximum junction temperature supporting operation in under-hood automotive and industrial enclosures |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 0.210 g mass and J-STD-020 Level 1 moisture sensitivity |
Pinout & Package
DO-214AB (SMC) package: molded plastic case rated UL 94V-0, matte tin-plated leads solderable per J-STD-002, polarity indicated by cathode band. Weight ≈ 0.210 g. Meets JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side for unidirectional clamping | Connected to protected line; conducts only when cathode-to-anode voltage exceeds VBR |
| Cathode | Clamp reference / ground return | Connected to system ground or lower-potential rail; establishes directional conduction path during transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal and humidity stress |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) waveforms |
| Fast response time | <1.0 ps enables clamping before sensitive ICs experience damaging overvoltage |
| Low leakage at VWM | ≤1 µA supports low-power sensor nodes and battery-backed systems without excessive quiescent drain |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting 12 V CAN/LIN bus interface pins against load-dump and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between signal line and chassis ground, operating in avalanche mode during ISO 7637-2 Pulse 5a events. Use Value: Limits voltage to ≤22.5 V during 1500 W surges, preventing damage to transceiver ICs such as TJA1042 or SN65HVD230. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-line, cathode-to-ground, absorbing 10/1000 µs transients induced by inductive switching. Use Value: Clamps 70 A surge to 22.5 V within <1 ps, maintaining input logic thresholds and avoiding false triggering of microcontroller GPIOs. |
| Telecom Power Supply Rail Protection | Consumer Appliance Motor Driver Interface |
|
Use Scenario: Secondary-side DC output protection in AC/DC adapters supplying PoE-powered devices. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across +5 V or +12 V rail and GND, activated only during lightning-induced surges per IEC 61000-4-5. Use Value: Withstands 1500 W peak power while holding clamping voltage below 25 V, preserving LDO regulator input ratings and downstream SoC supply integrity. |
Use Scenario: Input line protection for brushed DC motor driver ICs in smart home appliances subject to ESD and commutation spikes. IC Role / Device Role / Timing Role: Unidirectional suppressor installed between motor controller enable line and ground, shunting fast transients before reaching gate drivers. Use Value: Delivers ≤1 µA leakage at 13.6 V and clamps 70 A pulses to 22.5 V, ensuring clean enable signaling and eliminating latch-up in DRV8876 or similar drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Same DO-214AA package; 15.2–16.8 V VBR; 23.2 V VC @ 64.5 A; 600 W PPK | Lower peak power rating limits use in high-energy automotive load-dump scenarios | Select SMBJ16A only where surge energy is constrained to ≤600 W and PCB space favors smaller DO-214AA footprint |
| 1.5KE16A | Through-hole DO-15 package; identical VBR/VC specs; same 1500 W rating but higher RθJA (75 °C/W) | Not suitable for automated SMT assembly; requires manual insertion and wave soldering | Choose 1.5KE16A only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ16A and 1.5KE16A, the 1.5SMC16AH delivers identical clamping performance in a surface-mount DO-214AB package with superior thermal resistance (RθJC = 15 °C/W) and AEC-Q101 qualification - making it the preferred choice for production automotive and industrial SMT assemblies requiring high-reliability surge immunity.
Availability
1.5SMC16AH is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and telecom power supply protection requiring stable component supply, full traceability, and lifecycle continuity support.
Supply support for 1.5SMC16AH 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 1.5SMCxxAH series was engineered for robust, high-power transient suppression in automotive and industrial environments - emphasizing low clamping voltage, fast response, and reliability under harsh thermal and electrical stress.
FAQ
What is the breakdown voltage range for the 1.5SMC16AH?
The 1.5SMC16AH has a guaranteed breakdown voltage (VBR) range of 15.2 V to 16.8 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tolerance ensures consistent clamping initiation across production lots and temperature extremes, critical for predictable protection in 12 V automotive and 24 V industrial systems where the 1.5SMC16AH is commonly deployed.
Is the 1.5SMC16AH suitable for bidirectional transient protection?
No - the 1.5SMC16AH is a unidirectional TVS diode intended for DC line protection with defined anode/cathode polarity. For bidirectional applications such as AC signal lines or differential buses, Taiwan Semiconductor specifies separate parts with CH or CAH suffixes (e.g., 1.5SMC16CAH). Using the 1.5SMC16AH in reverse-biased configurations risks premature conduction or failure.
Does the 1.5SMC16AH meet automotive qualification standards?
Yes - the 1.5SMC16AH is AEC-Q101 qualified and tested per the full stress test schedule, including temperature cycling, highly accelerated life testing (HALT), and ESD robustness. It also meets ISO 7637-2 Pulse 1/2a/2b/3a/3b requirements, confirming suitability for under-hood and chassis-mounted automotive ECUs where the 1.5SMC16AH provides primary overvoltage defense.
What is the maximum clamping voltage of the 1.5SMC16AH during a surge event?
The 1.5SMC16AH clamps to a maximum of 22.5 V when subjected to its rated 70 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry - a key parameter for ensuring downstream components like microcontrollers or transceivers remain within absolute maximum ratings during transient events.
How does the DO-214AB package of the 1.5SMC16AH impact thermal performance?
The DO-214AB (SMC) package of the 1.5SMC16AH provides RθJC = 15 °C/W and RθJA = 50 °C/W, enabling efficient heat transfer from junction to case and ambient. This allows sustained operation at TJ = +150 °C in compact layouts - a critical advantage over smaller packages (e.g., SMA) when dissipating 1500 W peak pulses, and directly supports reliable deployment of the 1.5SMC16AH in thermally constrained automotive and industrial PCBs.
1.5SMC16AH 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 70A
- 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)
1.5SMC16AH FAQ
1.How can I place an order for 1.5SMC16AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16AH 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 1.5SMC16AH reliable?
The price and inventory of 1.5SMC16AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC16AH is usually 5 days.
3.What payment methods are accepted for 1.5SMC16AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16AH?
1.5SMC16AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16AH 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 1.5SMC16AH?
For technical support, including 1.5SMC16AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16AH requirements.
6.How does Aetrix verify that 1.5SMC16AH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16AH 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 1.5SMC16AH meets industry standards.
7.What is the process for return or replacement of 1.5SMC16AH?
All 1.5SMC16AH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16AH, 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 1.5SMC16AH part is unused and in its original packaging.
Return procedure for 1.5SMC16AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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