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Taiwan Semiconductor Corporation P4SMA16C
- Part No.:
- P4SMA16C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA16C.pdf
- Description:
- 400W, 16V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:5,030
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Product details
Overview
P4SMA16C from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for overvoltage protection of DC power lines and signal paths. It features a 13.6 V working stand-off voltage (VWM), 15.2–16.8 V breakdown voltage (VBR), 22.5 V maximum clamping voltage (VC) at 18.6 A peak pulse current, and 400 W peak pulse power rating per 10/1000 µs waveform - deployed in switching mode power supplies and on-board DC/DC converters.
For engineers reviewing the P4SMA16C datasheet, P4SMA16C pinout, P4SMA16C application, or P4SMA16C equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b stress, unidirectional polarity marking, moisture sensitivity level 1 compliance, and compatibility with automated SMT placement in high-reliability industrial power interfaces.
Technical Context
The P4SMA16C operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1.0 ps) and low leakage (<1 µA at VWM). Its clamping behavior is defined by a single-die structure optimized for transient energy absorption without thermal runaway under repetitive surge conditions.
It adheres to JESD201 Class 2 whisker resistance, UL 94V-0 molding compound, and matte tin-plated leads compliant with J-STD-002 solderability - enabling robust operation across -55°C to +150°C junction temperature range while maintaining stable VBR temperature coefficient of 0.086 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - maximum continuous reverse operating voltage before significant leakage begins |
| VBR @ IT=1 mA | 15.2–16.8 V - guaranteed avalanche onset range under standardized test current |
| VC @ IPPM=18.6 A | 22.5 V - maximum voltage seen across device during 10/1000 µs surge, limiting downstream stress |
| PPPM | 400 W - peak transient power dissipation capability under standard waveform |
| IR @ VWM | <1 µA - minimal standby leakage ensuring low quiescent power loss in protected circuits |
| TJ Range | -55°C to +150°C - operational junction temperature window supporting automotive and industrial ambient conditions |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; compact 4.5 mm × 2.7 mm footprint, 2.2 mm height, and 0.060 g mass. Matte tin-plated leads ensure reliable reflow soldering per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Reverse-biased protection terminal | Connected to protected line (e.g., +12 V rail); conducts only during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC = 22.5 V at 18.6 A ensures downstream ICs see <23 V during 400 W transients |
| Response speed | <1.0 ps enables suppression before sensitive logic or power stages are stressed |
| Automated placement readiness | DO-214AC (SMA) package geometry and lead finish support high-yield pick-and-place assembly |
| Environmental compliance | RoHS-compliant, halogen-free per IEC 61249-2-21, and MSL Level 1 per J-STD-020 |
Applications
| Switching Mode Power Supply (SMPS) | On-board DC/DC Converter |
|---|---|
Use Scenario: Protection of primary-side MOSFET gate drivers and secondary-side rectifier outputs against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input/output rails to clamp transient excursions above 13.6 V. Use Value: Limits voltage overshoot to ≤22.5 V during 400 W surges, preserving MOSFET VDS and Schottky diode reverse ratings. | Use Scenario: Input rail protection in point-of-load (POL) converters powering FPGAs or microcontrollers in industrial PLCs. IC Role / Device Role / Timing Role: Standoff protection element absorbing ESD and coupled noise on 12 V or 24 V input bus. Use Value: Sub-1 µA leakage at 13.6 V avoids loading regulation loops; 0.086 %/°C VBR drift maintains accuracy across wide temperature ranges. |
| Lighting Application | Adapters |
Use Scenario: Surge suppression on LED driver inputs exposed to mains-coupled transients in commercial lighting fixtures. IC Role / Device Role / Timing Role: Primary-line TVS connected anode-to-ground, cathode-to-input rail to shunt lightning-induced surges. Use Value: Withstands ≥10,000 cycles of 8.3 ms half-sine surges up to 40 A (IFSM), ensuring long-term reliability in outdoor installations. | Use Scenario: Output-side protection in AC/DC wall adapters supplying USB-C PD or legacy 5–24 V devices. IC Role / Device Role / Timing Role: Final-stage clamping device safeguarding connector pins and downstream USB interface ICs. Use Value: Meets ISO 7637-2 Pulse 3a/3b requirements, suppressing fast-edge noise (<1 ns rise time) without affecting steady-state regulation. |
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) | DO-214AA (SMB) package; 16 V VWM, 20.9 V VC @ 19.1 A; same 400 W rating | Larger footprint (5.3 × 3.6 mm) requires PCB layout change; higher thermal mass improves surge endurance | Select when board space allows larger package and enhanced thermal margin is prioritized over miniaturization |
| 1.5SMC16A (ON Semiconductor) | DO-214AB (SMC) package; 16 V VWM, 26.0 V VC @ 15.4 A; 1500 W rating but slower response | Higher clamping voltage increases downstream stress; suited for less sensitive loads with higher energy tolerance | Prefer where system-level testing confirms 26 V clamping is acceptable and higher single-pulse energy handling is required |
Compared with SMBJ16A and 1.5SMC16A, the P4SMA16C offers the smallest footprint (DO-214AC), lowest clamping voltage (22.5 V), and fastest response (<1.0 ps), making it optimal for space-constrained, high-speed DC power rail protection where precise voltage limiting is critical.
Availability
P4SMA16C is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and lighting applications requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA16C 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 protection devices, rectifiers, and power management components.
The P4SMA16C belongs to TSC's P4SMAx series of surface-mount TVS diodes, engineered for cost-effective, high-volume surge protection in industrial power conversion and automotive-qualified auxiliary systems.
FAQ
What is the polarity configuration of the P4SMA16C?
The P4SMA16C is a unidirectional TVS diode with cathode marked by a band on the DO-214AC (SMA) package body. It conducts only in reverse bias during overvoltage events and must be installed with cathode toward the protected line and anode to ground or low-potential reference. This configuration ensures precise clamping at 22.5 V without forward conduction during normal operation.
Does the P4SMA16C meet automotive transient standards?
Yes, the P4SMA16C meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements for automotive electrical systems. Its 400 W peak pulse power rating, sub-1 µA leakage at 13.6 V, and stable VBR drift (0.086 %/°C) enable reliable suppression of load dump, jump start, and inductive switching transients in 12 V vehicle subsystems - though full AEC-Q200 qualification requires verification per specific lot documentation.
What is the maximum surge current the P4SMA16C can handle?
The P4SMA16C supports a maximum peak impulse current (IPPM) of 18.6 A under the standardized 10/1000 µs double-exponential waveform. Its absolute maximum rating also includes 40 A non-repetitive forward surge current (IFSM) for 8.3 ms half-sine pulses, verified per Figure 4 in the datasheet - making it suitable for both fast ESD-like events and longer-duration power-line surges.
Is the P4SMA16C compatible with lead-free reflow soldering processes?
Yes, the P4SMA16C features matte tin-plated leads compliant with J-STD-002 for solderability and is rated for lead-free reflow profiles up to 260°C peak temperature. Its DO-214AC (SMA) package uses UL 94V-0 flammability-rated molding compound and meets moisture sensitivity level 1 (MSL 1) per J-STD-020, eliminating bake requirements prior to assembly.
How does the P4SMA16C differ from the P4SMA16CA variant?
The P4SMA16C is unidirectional, while P4SMA16CA is bidirectional - meaning the latter has symmetric clamping in both polarities and no cathode marking. The P4SMA16C provides tighter VBR tolerance (15.2–16.8 V) and lower VC (22.5 V) than the CA version (VC = 23.5 V), making it preferable for DC rail protection where polarity is fixed and clamping precision is critical.
P4SMA16C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA
- 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):
- 17.8A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA16C FAQ
1.How can I place an order for P4SMA16C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA16C 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 P4SMA16C reliable?
The price and inventory of P4SMA16C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA16C is usually 5 days.
3.What payment methods are accepted for P4SMA16C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA16C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA16C?
P4SMA16C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA16C 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 P4SMA16C?
For technical support, including P4SMA16C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA16C requirements.
6.How does Aetrix verify that P4SMA16C is sourced from the original manufacturer or authorized distributors?
All P4SMA16C 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 P4SMA16C meets industry standards.
7.What is the process for return or replacement of P4SMA16C?
All P4SMA16C units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA16C, 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 P4SMA16C part is unused and in its original packaging.
Return procedure for P4SMA16C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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