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Taiwan Semiconductor Corporation 1.5SMC16C
- Part No.:
- 1.5SMC16C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16C.pdf
- Description:
- 1500W, 16V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:8,294
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Product details
Overview
1.5SMC16C from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 16V breakdown voltage (VBR = 14.4–17.6V), 12.9V working stand-off voltage (VWM), and 23.5V maximum clamping voltage (VC) at 67A peak pulse current - used for ESD and surge protection on DC power rails and signal lines in telecom and industrial interfaces.
For engineers reviewing the 1.5SMC16C datasheet, 1.5SMC16C pinout, 1.5SMC16C application, or 1.5SMC16C equivalent, key selection criteria include clamping performance under 10/1000μs surge, unidirectional polarity marking, thermal resistance (RθJA = 50°C/W), and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump immunity.
Technical Context
The 1.5SMC16C operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (14.4–17.6V @ 1mA), clamping transients to ≤23.5V at 67A. Its glass-passivated junction ensures stable leakage (<1μA @ 12.9V) and fast response (<1.0ps).
Designed for surface-mount automation, it meets J-STD-020 moisture sensitivity level 1 and JESD 201 Class 2 whisker resistance. Thermal performance is defined by RθJC = 15°C/W and RθJA = 50°C/W, supporting continuous power dissipation up to 6.5W at 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.4V / 17.6V - defines minimum and maximum voltage at which avalanche conduction begins reliably at 1mA test current |
| VWM | 12.9V - maximum continuous reverse operating voltage before significant leakage occurs |
| VC @ IPPM | 23.5V @ 67A - clamped voltage during 10/1000μs surge, limiting downstream IC stress |
| PPK | 1500W - peak pulse power handling capability per single non-repetitive 1ms surge |
| IR @ VWM | <1μA - ultra-low reverse leakage ensures minimal standby power loss in battery-powered systems |
| TJ max | +150°C - maximum junction temperature enabling operation in high-ambient industrial environments |
| RθJA | 50°C/W - thermal resistance from junction to ambient, critical for PCB copper area design and derating above 25°C |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Case meets UL 94V-0 flammability rating; matte tin-plated leads comply with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to protected line's low-side or ground reference; must be routed with low-inductance trace for effective clamping |
| Cathode (banded end) | Avalanche conduction terminal | Connected to protected line's high-side (e.g., +12V rail); polarity marking ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift |
| Clamping voltage ≤23.5V at 67A | Protects 15V-rated ICs (e.g., CAN transceivers, RS-485 drivers) from damage during ISO 7637-2 Pulse 2b (inductive switch-off) |
| Response time <1.0ps | Engages before ESD events (IEC 61000-4-2) or fast transients can propagate into sensitive circuitry |
| Moisture sensitivity level 1 | Eliminates need for baking prior to reflow, reducing manufacturing cost and process complexity |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and environmental directives for consumer and automotive supply chains |
Applications
| Automotive Power Rail Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load-dump surges (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, clamping spikes before they reach LDOs or microcontrollers. Use Value: Limits voltage to ≤23.5V during 1500W surges, preventing latch-up or gate oxide rupture in downstream 16V-tolerant regulators. | Use Scenario: Safeguarding RS-485 transceivers (e.g., THVD1550) against ESD (±15kV contact) and cable-induced surges in factory automation networks. IC Role / Device Role / Timing Role: Bidirectional protection not applicable - 1.5SMC16C used on VCC line only; paired with bidirectional TVS on data lines. Use Value: Maintains <1μA leakage at 12.9V, avoiding false bias shifts on shared 12V bus while clamping fast transients below transceiver absolute max rating. |
| Telecom DC Power Input | Consumer USB-C Power Delivery |
Use Scenario: Securing 12V/24V PoE-powered switches and base stations against lightning-induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: First-line transient suppressor on primary DC input, upstream of π-filter and DC-DC converter. Use Value: Withstands 10/1000μs surges up to 67A, enabling compliance with ITU-T K.21 heavy-duty protection requirements. | Use Scenario: Overvoltage protection on 9–15V PPS (Programmable Power Supply) rails in USB-C PD sink adapters. IC Role / Device Role / Timing Role: Standoff voltage (12.9V) aligns with PD 3.0 PPS mid-range; clamps overshoots from adapter regulation instability. Use Value: 23.5V clamping ensures no violation of 20V max rating on common PD controller ICs (e.g., STUSB4500) during dynamic load steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A (Bourns) | Same DO-214AA (SMB) package; 1500W rating; VBR = 17.8–19.7V; VC = 26.0V @ 58A | Higher clamping voltage and lower IPPM; less effective for tight-margin 15V systems | Select if board layout uses SMB footprint and higher VC is acceptable |
| 1.5KE16C (ON Semiconductor) | Through-hole DO-15 package; same VBR/VC specs; 1500W rating; RθJA ≈ 55°C/W | Not SMT-compatible; requires wave-solder or hand-assembly; higher thermal resistance limits power density | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ16A and 1.5KE16C, the 1.5SMC16C offers superior clamping (23.5V vs. 26.0V/24.4V), SMT scalability, and lower thermal resistance - making it optimal for space-constrained, high-reliability 12–15V rail protection in volume production.
Availability
1.5SMC16C is available at Aetrix Electronics and suitable for automotive power rail protection, industrial RS-485 interface hardening, and telecom DC input surge immunity requiring stable component supply across extended temperature and lifecycle demands.
Supply support for 1.5SMC16C 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 1.5SMC series was engineered for high-power, surface-mount transient suppression in automotive, industrial, and telecom infrastructure - emphasizing robust clamping, AEC-Q200 readiness, and automated assembly compatibility.
FAQ
What is the polarity configuration of the 1.5SMC16C?
The 1.5SMC16C is a unidirectional TVS diode, with cathode indicated by a band on the DO-214AB (SMC) package body. It conducts in reverse-bias avalanche mode during overvoltage events and blocks forward current up to 3.5V at 50A - consistent with all 1.5SMC6.8–1.5SMC91 variants. This polarity enables precise placement on positive-rail protection paths without unintended conduction.
Does the 1.5SMC16C meet ISO 7637-2 compliance?
Yes, the 1.5SMC16C is explicitly rated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements per Taiwan Semiconductor's official datasheet (Version S2207). Its 1500W peak power rating, 23.5V clamping voltage at 67A, and sub-1.0ps response ensure robust immunity against coupled transients in 12V automotive systems - validated under standardized 10/1000μs surge waveforms.
What is the maximum steady-state power dissipation for the 1.5SMC16C?
The 1.5SMC16C has a steady-state power dissipation (PD) of 6.5W at TA = 25°C, as specified in the Absolute Maximum Ratings table. Derating is required above 25°C ambient per the Pulse Derating Curve (Fig.2), reaching zero allowable power at 150°C junction temperature. This rating governs continuous leakage-based heating, not transient surge energy.
Can the 1.5SMC16C be used in bidirectional configurations?
No - the 1.5SMC16C is unidirectional only. For bidirectional protection, Taiwan Semiconductor specifies the "CA" suffix variant (e.g., 1.5SMC16CA), which uses dual-die construction. Using the 1.5SMC16C in reverse-biased AC applications risks forward conduction and failure; always verify part suffix and marking code (DYJ for 1.5SMC16C) before placement.
What is the junction-to-ambient thermal resistance (RθJA) of the 1.5SMC16C?
The 1.5SMC16C has a typical junction-to-ambient thermal resistance (RθJA) of 50°C/W, measured under standard JEDEC conditions (single-layer 1-in² copper pad). This value is critical for calculating safe operating area during repetitive surge events and must be adjusted downward with additional PCB copper, thermal vias, or heatsinking to maintain TJ ≤ 150°C in high-duty-cycle applications.
1.5SMC16C 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):
- 12.9V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.5V
- Current - Peak Pulse (10/1000µs):
- 67A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC16C FAQ
1.How can I place an order for 1.5SMC16C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16C 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 1.5SMC16C reliable?
The price and inventory of 1.5SMC16C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC16C is usually 5 days.
3.What payment methods are accepted for 1.5SMC16C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16C?
1.5SMC16C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16C 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 1.5SMC16C?
For technical support, including 1.5SMC16C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16C requirements.
6.How does Aetrix verify that 1.5SMC16C is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16C 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 1.5SMC16C meets industry standards.
7.What is the process for return or replacement of 1.5SMC16C?
All 1.5SMC16C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16C, 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 1.5SMC16C part is unused and in its original packaging.
Return procedure for 1.5SMC16C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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