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Taiwan Semiconductor Corporation 1.5SMC16A
- Part No.:
- 1.5SMC16A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16A.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,199
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Product details
Overview
1.5SMC16A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 16.8V maximum breakdown voltage (VBR), and 22.5V clamping voltage (VC) at 70A peak impulse current. It protects DC power rails and signal lines in telecom infrastructure and industrial control systems against ESD, lightning surges, and load-switching transients.
For engineers reviewing the 1.5SMC16A datasheet, 1.5SMC16A pinout, 1.5SMC16A application, or 1.5SMC16A equivalent, key selection criteria include working stand-off voltage (13.6V), leakage current (<1µA at VWM), clamping ratio (VC/VBR ≈ 1.34), thermal resistance (RθJC = 15°C/W), and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b.
Technical Context
The 1.5SMC16A employs a glass-passivated silicon junction optimized for fast transient response (<1.0ps), enabling effective suppression of sub-nanosecond ESD events per IEC 61000-4-2. Its unidirectional configuration provides low forward voltage (3.5V @ 50A) only for reverse-biased surge protection, with polarity marked by cathode band.
Thermally, it supports continuous operation up to +150°C junction temperature and features RθJA = 50°C/W and RθJC = 15°C/W, allowing reliable power dissipation in compact PCB layouts. Moisture sensitivity is rated Level 1 per J-STD-020, eliminating bake requirements prior to reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2V / 16.8V - Ensures consistent avalanche initiation across production lots at 1.0mA test current |
| VWM | 13.6V - Maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPPM | 22.5V @ 70A - Clamped voltage during 10/1000μs surge, limiting downstream IC stress to safe levels |
| PPK | 1500W - Peak pulse power handling per single 1ms transient, derated above 25°C ambient |
| IR @ VWM | <1µA - Minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJ max | +150°C - Enables use in under-hood automotive modules and enclosed industrial enclosures |
| Package | DO-214AB (SMC) - Standardized surface-mount outline compatible with automated pick-and-place and reflow |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band on unidirectional variants. Weight: 0.210g. Meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side (e.g., GND or return) in unidirectional TVS configuration |
| Cathode | Avalanche clamping node | Connected to protected line (e.g., VIN, data line); cathode band marks this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| ISO 7637-2 compliance | Validated for automotive load-dump and switching transient immunity (Pulse 1/2a/2b/3a/3b) |
| Fast response time | <1.0ps enables suppression of ESD events before sensitive CMOS inputs latch up |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
| Level 1 moisture sensitivity | Eliminates pre-bake requirement, reducing SMT line downtime and cost |
Applications
| Telecom Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting 12V DC input rails of base station remote radio units from induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND, clamping transients within 22.5V to safeguard DC-DC controllers and PMICs. Use Value: Withstands 1500W pulses while maintaining <1µA leakage at 13.6V, minimizing standby power loss in always-on equipment. | Use Scenario: Shielding 24V digital input channels of programmable logic controllers from inductive kickback during solenoid de-energization. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing 70A 10/1000μs surges without degradation, preserving signal integrity during field wiring faults. Use Value: 15.2–16.8V VBR range ensures robust triggering margin above 24V nominal rail, preventing false clamping during normal operation. |
| Automotive Body Control Module | Consumer Audio Equipment DC Rails |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins against battery reverse-connection and load-dump events. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at connector entry point, leveraging 150°C TJ rating for under-dash mounting. Use Value: ISO 7637-2 Pulse 2b/5a validation guarantees immunity to 100V/100ms load-dump transients without failure. | Use Scenario: Protecting 15V bias rails in high-fidelity headphone amplifiers from ESD during user interface button presses. IC Role / Device Role / Timing Role: Low-leakage TVS suppressing IEC 61000-4-2 ±8kV contact discharges without affecting analog ground reference stability. Use Value: Sub-1µA leakage at 13.6V prevents DC offset drift in precision op-amp stages, maintaining THD+N performance. |
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 (Bourns) | Same DO-214AA package; 1500W rating; VBR = 17.8–19.7V; VC = 26.0V @ 57.7A | Higher clamping voltage reduces protection margin for 15V systems; lower IPPM limits surge energy handling | Select when footprint compatibility with SMB package is required and higher VC is acceptable |
| 1.5KE16A (ON Semiconductor) | Through-hole DO-15 package; identical VBR/VC specs; 1500W rating; lead-free matte tin finish | Requires PCB redesign for through-hole assembly; not suitable for fully SMT production | Choose for legacy designs or prototyping where manual soldering is preferred over SMT |
Compared with SMBJ16A and 1.5KE16A, the 1.5SMC16A offers tighter VBR tolerance (±5% vs ±10%), lower clamping voltage (22.5V vs 26.0V), and surface-mount DO-214AB packaging-making it optimal for space-constrained, high-volume automated assembly in 12–15V DC systems requiring precise overvoltage thresholds.
Availability
1.5SMC16A is available at Aetrix Electronics and suitable for telecom power input protection, industrial PLC digital I/O protection, automotive body control modules, and consumer audio equipment DC rails requiring stable component supply and full traceability.
Supply support for 1.5SMC16A 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 qualified product lines.
The 1.5SMCxx(A) series was designed specifically for high-energy transient suppression in automotive, industrial, and telecom applications where reliability under harsh electrical environments and strict regulatory compliance (ISO 7637-2, RoHS, halogen-free) are mandatory.
FAQ
What is the maximum clamping voltage of the 1.5SMC16A under standard surge conditions?
The 1.5SMC16A has a maximum clamping voltage (VC) of 22.5V when subjected to its rated peak pulse current of 70A using the 10/1000μs waveform defined in Fig.5 of the datasheet. This value is measured at TA = 25°C and ensures downstream components see no more than 22.5V during transient events, critical for protecting 15V-rated ICs. The 1.5SMC16A maintains this clamping performance across its full operating temperature range.
Is the 1.5SMC16A suitable for bidirectional transient protection?
No, the 1.5SMC16A is a unidirectional TVS diode intended for DC line protection where polarity is fixed. For bidirectional AC or data-line protection, the 1.5SMC16CA variant (with 'CA' suffix) must be used, as it provides symmetrical clamping in both directions. The 1.5SMC16A's cathode band marking and forward voltage specification (3.5V @ 50A) confirm its unidirectional design; using it in reverse-biased AC applications would result in unintended conduction.
What is the working stand-off voltage (VWM) of the 1.5SMC16A, and why does it matter?
The 1.5SMC16A has a working stand-off voltage (VWM) of 13.6V, meaning it remains in high-impedance blocking mode for any continuous voltage ≤13.6V. This parameter is critical because it defines the maximum normal operating voltage the protected circuit can sustain without triggering the TVS. Selecting a VWM ≥110% of the system's nominal voltage (e.g., 13.6V for a 12V rail) prevents nuisance clamping while ensuring robust surge response above that threshold. The 1.5SMC16A's 13.6V VWM provides ideal margin for 12V systems.
How does the 1.5SMC16A meet automotive transient immunity standards?
The 1.5SMC16A is explicitly validated to meet ISO 7637-2 Pulse 1 (inductive switch-off), Pulse 2a/2b (load dump simulation), and Pulse 3a/3b (capacitive coupling) test waveforms. Its 1500W peak power rating, 22.5V clamping voltage, and 150°C junction temperature rating enable reliable operation in automotive body control modules and infotainment systems exposed to harsh electrical environments. The 1.5SMC16A's glass-passivated junction ensures long-term stability under thermal cycling encountered in vehicle cabins.
What packaging and reel quantity is available for the 1.5SMC16A?
The 1.5SMC16A is supplied in DO-214AB (SMC) package on 3,000-piece tape-and-reel format, compatible with standard SMT pick-and-place equipment. The reel complies with EIA-481-D standards, and each unit is marked with code 'DZJ' for traceability. Lead finish is matte tin per J-STD-002, and moisture sensitivity level is rated Level 1 per J-STD-020-eliminating bake requirements prior to reflow soldering. Aetrix Electronics stocks full reels and cut-tape options for prototyping and NPI support.
1.5SMC16A 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC16A FAQ
1.How can I place an order for 1.5SMC16A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16A 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 1.5SMC16A reliable?
The price and inventory of 1.5SMC16A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC16A is usually 5 days.
3.What payment methods are accepted for 1.5SMC16A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16A?
1.5SMC16A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16A 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 1.5SMC16A?
For technical support, including 1.5SMC16A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16A requirements.
6.How does Aetrix verify that 1.5SMC16A is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16A 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 1.5SMC16A meets industry standards.
7.What is the process for return or replacement of 1.5SMC16A?
All 1.5SMC16A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16A, 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 1.5SMC16A part is unused and in its original packaging.
Return procedure for 1.5SMC16A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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