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Taiwan Semiconductor Corporation 1.5SMC16CAH
- Part No.:
- 1.5SMC16CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16CAH.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,840
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Product details
Overview
1.5SMC16CAH from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) diode with a working stand-off voltage of 13.6V, breakdown voltage range of 15.2V–16.8V at 1mA test current, and clamping voltage of 22.5V at 70A peak pulse current. It protects automotive and industrial power rails against ESD, lightning-induced surges, and load-switch transients.
For engineers reviewing the 1.5SMC16CAH datasheet, 1.5SMC16CAH pinout, 1.5SMC16CAH application, or 1.5SMC16CAH equivalent, this device is selected for high-energy surge immunity in DC power interfaces where AEC-Q101 qualification, ISO 7637-2 compliance, and sub-1ps response time are required.
Technical Context
The 1.5SMC16CAH is a bipolar (bidirectional) TVS diode built on a glass-passivated silicon junction in a DO-214AB (SMC) package. Its symmetrical clamping behavior ensures identical protection in both polarities, with leakage current ≤1μA at 13.6V and thermal resistance RθJC = 15°C/W enabling reliable operation up to 150°C junction temperature.
It meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms and delivers fast transient suppression with typical response time <1.0ps. The device is rated for 1500W peak pulse power (10/1000μs waveform) and supports unidirectional forward surge current up to 200A (8.3ms half-sine), though its bidirectional configuration precludes forward conduction use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VBR min/max | 15.2 V / 16.8 V @ 1 mA - Confirmed breakdown threshold range defining turn-on onset under surge conditions |
| VC@IPPM | 22.5 V @ 70 A - Clamped voltage during 10/1000μs surge, limiting downstream circuit stress |
| PPK | 1500 W - Peak pulse power handling per single transient event, derated above 25°C ambient |
| IR@VWM | ≤1 μA - Low leakage ensures minimal power loss and signal integrity in standby |
| TJ max | +150 °C - Maximum junction temperature supporting operation in under-hood automotive environments |
| Package | DO-214AB (SMC) - Surface-mount outline with 7.11 mm × 6.22 mm footprint and matte tin-plated leads |
Pinout & Package
DO-214AB (SMC) package: molded plastic case meeting UL 94V-0 flammability rating; polarity indicated by cathode band (bidirectional symmetry means no functional anode/cathode distinction; band denotes terminal orientation only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (marked side) | Anode/Cathode reference point | Identifies physical orientation; electrically symmetric-functions identically in either direction |
| Terminal 2 (unmarked side) | Anode/Cathode reference point | Completes bidirectional path; no polarity-dependent function-both terminals serve as interchangeable surge ports |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| ISO 7637-2 compliant | Withstands defined automotive transient pulses (Pulse 1, 2a, 2b, 3a, 3b) without degradation or failure |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
| Fast response time <1.0 ps | Clamps transients before sensitive downstream ICs experience overvoltage stress |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow-compatible with standard SMT assembly processes |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs, lighting modules, and body control units from load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and ground to clamp ±22.5V surges within microseconds. Use Value: Enables robust operation per ISO 7637-2 while maintaining low leakage (<1μA) to avoid battery drain. | Use Scenario: Safeguarding 24V digital input channels in programmable logic controllers exposed to field wiring inductive kickback. IC Role / Device Role / Timing Role: Standoff voltage (13.6V) allows normal 24V signaling while clamping 70A surges to 22.5V. Use Value: Prevents false triggering and latch-up in optocoupler or Schmitt-trigger input stages during factory floor transients. |
| Telecom DC Power Feeds | Consumer USB-C Power Delivery |
Use Scenario: Shielding PoE-powered switches and base station RF modules from lightning-induced common-mode surges on DC input lines. IC Role / Device Role / Timing Role: Bidirectional clamping element across +VIN/GND, absorbing 1500W pulses without failure. Use Value: Meets IEC 61000-4-5 Level 4 requirements when used with appropriate series impedance. | Use Scenario: Secondary-level surge protection on 20V USB-C PD bus lines after primary front-end filtering. IC Role / Device Role / Timing Role: Fast-response TVS limiting transient overshoot to ≤22.5V during hot-plug or cable discharge events. Use Value: Complements internal OVP circuits in PD controllers by handling high-energy, sub-microsecond transients that bypass slower IC protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | 600W peak power, same DO-214AA (SMB) package, VC = 26.0V @ 24.9A | Lower energy handling; suitable for lower-tier surge immunity (IEC 61000-4-5 Level 2) | Select SMBJ16CA only if system-level testing confirms 600W sufficiency and board space constraints favor smaller SMB outline. |
| 1.5KE16CA | Through-hole DO-15 package, 1500W rating, VC = 25.5V @ 59A, higher leakage (≤5μA) | Not SMT-compatible; requires manual or wave soldering; less suitable for automated high-volume production | Choose 1.5KE16CA only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMBJ16CA and 1.5KE16CA, the 1.5SMC16CAH delivers identical 1500W surge capability in a surface-mount DO-214AB package with lower clamping voltage (22.5V vs. 25.5–26.0V) and tighter leakage control (≤1μA), making it optimal for AEC-Q101-compliant automotive and high-reliability industrial layouts.
Availability
1.5SMC16CAH is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom power systems requiring stable component supply with AEC-Q101 qualification and ISO 7637-2 compliance.
Supply support for 1.5SMC16CAH 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 TVS diodes, rectifiers, MOSFETs, and power management devices.
The 1.5SMCxxCAH series was designed specifically for high-energy, surface-mount surge protection in automotive and industrial environments where AEC-Q101 qualification, bidirectional symmetry, and low-clamp performance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC16CAH under a 10/1000μs surge?
The 1.5SMC16CAH has a maximum clamping voltage (VC) of 22.5 V when subjected to a 70 A peak pulse current with a 10/1000μs waveform. This value is measured per IEC 61000-4-5 and ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during surge events. The 1.5SMC16CAH maintains this clamping performance across its full operating temperature range (−55°C to +150°C).
Is the 1.5SMC16CAH suitable for automotive applications?
Yes, the 1.5SMC16CAH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements-making it suitable for 12V and 24V automotive power networks. Its DO-214AB package supports automated SMT assembly, and its −55°C to +150°C operating range covers under-hood and cabin environments. The 1.5SMC16CAH also complies with RoHS and halogen-free standards per IEC 61249-2-21.
How does the 1.5SMC16CAH differ from the unidirectional 1.5SMC16CH?
The 1.5SMC16CAH is bidirectional, providing symmetrical clamping for both positive and negative transients, whereas the 1.5SMC16CH is unidirectional and only protects against surges of one polarity. The 1.5SMC16CAH has identical VWM (13.6 V), VBR (15.2–16.8 V), and VC (22.5 V) ratings but lacks a functional anode/cathode distinction-its marking band indicates mechanical orientation only. This makes the 1.5SMC16CAH ideal for AC-coupled or floating DC lines.
What is the maximum leakage current of the 1.5SMC16CAH at its working voltage?
The 1.5SMC16CAH exhibits a maximum blocking leakage current (IR) of 1 μA when biased at its working stand-off voltage (VWM) of 13.6 V, measured at 25°C. This ultra-low leakage minimizes standby power loss and avoids interference with high-impedance sensing circuits. The specification holds across the full −55°C to +125°C operating range, with leakage increasing predictably per the device's thermal coefficient.
Does the 1.5SMC16CAH require special PCB layout considerations?
Yes-the 1.5SMC16CAH should be placed as close as possible to the protected interface with short, low-inductance traces to ground and line. Its DO-214AB (SMC) package requires the recommended pad layout from Taiwan Semiconductor's datasheet (7.11 mm × 6.22 mm, 1.5 mm solder mask opening). Thermal relief on ground pads is discouraged; solid copper pour improves heat dissipation and surge current handling. The 1.5SMC16CAH must not share return paths with noisy switching circuits to preserve clamping fidelity.
1.5SMC16CAH 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:
- -
- Bidirectional Channels:
- 1
- 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)
1.5SMC16CAH FAQ
1.How can I place an order for 1.5SMC16CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16CAH 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 1.5SMC16CAH reliable?
The price and inventory of 1.5SMC16CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC16CAH is usually 5 days.
3.What payment methods are accepted for 1.5SMC16CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16CAH?
1.5SMC16CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16CAH 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 1.5SMC16CAH?
For technical support, including 1.5SMC16CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16CAH requirements.
6.How does Aetrix verify that 1.5SMC16CAH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16CAH 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 1.5SMC16CAH meets industry standards.
7.What is the process for return or replacement of 1.5SMC16CAH?
All 1.5SMC16CAH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16CAH, 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 1.5SMC16CAH part is unused and in its original packaging.
Return procedure for 1.5SMC16CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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