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Taiwan Semiconductor Corporation P4SMA16CA
- Part No.:
- P4SMA16CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA16CA.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,687
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Product details
Overview
P4SMA16CA from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection in DC power rails. It features a 13.6 V working stand-off voltage (VWM), 15.2–16.8 V breakdown voltage (VBR), 22.5 V clamping voltage (VC) at 18.6 A peak pulse current, and 400 W peak pulse power rating per 10/1000 µs waveform - deployed in automotive body control modules and industrial DC/DC converters.
For engineers reviewing the P4SMA16CA datasheet, P4SMA16CA pinout, P4SMA16CA application, or P4SMA16CA equivalent, key selection criteria include bidirectional clamping capability, sub-1 ps response time, <1 µA leakage at VWM, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and DO-214AC thermal derating behavior up to 150 °C junction temperature.
Technical Context
The P4SMA16CA implements a glass-passivated silicon junction optimized for fast transient suppression in bidirectional signal and power lines. Its unidirectional counterpart is P4SMA16A; the "CA" suffix explicitly denotes symmetrical bipolar operation with identical electrical characteristics in both polarities.
It operates across –55 °C to +150 °C junction temperature range, supports 40 A non-repetitive forward surge (IFSM), and maintains clamping performance under pulsed stress per IEC 61000-4-5 and ISO 7637-2 standards - with thermal derating above 25 °C ambient per Figure 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - maximum continuous reverse operating voltage before significant leakage |
| VBR min/max | 15.2 V / 16.8 V at 1.0 mA test current - defines reliable conduction onset threshold |
| VC @ IPPM | 22.5 V at 18.6 A (10/1000 µs) - limits downstream voltage during surge events |
| PPPM | 400 W - peak pulse power handling capacity under standardized surge waveform |
| IR @ VWM | <1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +150 °C - enables use in under-hood automotive and thermally constrained industrial PCBs |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, molded plastic case with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity indicated by cathode band; bidirectional symmetry means no functional anode/cathode distinction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient return path (bidirectional) | Functions as cathode during positive transients and anode during negative transients - no fixed polarity |
| Cathode (band end) | Transient return path (bidirectional) | Functions as anode during positive transients and cathode during negative transients - symmetric clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| Sub-1 ps response time | Clamps ESD and fast transients before sensitive ICs experience overstress |
| ISO 7637-2 compliance | Validated for automotive load-dump and inductive-switching immunity (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow - compatible with standard SMT assembly lines |
Applications
| Automotive Body Control Module | Industrial DC/DC Converter |
|---|---|
Use Scenario: Protects LIN bus transceivers and microcontroller I/O from battery line transients during load dump and jump-start events. IC Role / Device Role / Timing Role: Bidirectional TVS placed between power rail and ground, clamping ±100 V spikes to ≤22.5 V within <1 ps. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic without adding series impedance or affecting signal timing. | Use Scenario: Shields isolated feedback optocoupler inputs and PWM controller enable pins from flyback-induced surges in 24 V input DC/DC stages. IC Role / Device Role / Timing Role: Standoff-rated protector on secondary-side bias rails, absorbing repetitive 400 W pulses without degradation. Use Value: Eliminates need for external RC snubbers while maintaining >100 khr MTBF under thermal cycling. |
| LED Driver Power Supply | Smart Meter Power Input |
Use Scenario: Safeguards constant-current LED driver ICs against induced surges from nearby relay switching in streetlight controllers. IC Role / Device Role / Timing Role: Parallel-connected TVS on 12–24 V input, activated only during >13.6 V transients to avoid steady-state loading. Use Value: Maintains <1 µA leakage at nominal voltage, preserving efficiency in energy-sensitive outdoor lighting. | Use Scenario: Secures AC/DC auxiliary supply input of utility smart meters exposed to lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: First-stage clamping device upstream of input filter, rated for repeated 10/1000 µs surges per IEC 61000-4-5 Level 3. Use Value: Delivers 400 W peak power dissipation without derating below –40 °C ambient, meeting ANSI C12.1 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA (Bourns) | Same DO-214AA package, 400 W rating, but 16 V VWM and 23.2 V VC; slightly higher clamping voltage | Compatible in space-constrained layouts where SMA footprint is unavailable | Select SMBJ16CA only if board real estate requires smaller DO-214AA outline and 0.7 V higher clamping is acceptable |
| 1.5KE16CA (ON Semiconductor) | Through-hole DO-15 package, same 16 V VWM, but 23.5 V VC and 1500 W rating - not drop-in | Used in legacy through-hole designs or high-energy surge zones requiring >400 W margin | Choose 1.5KE16CA only when mechanical mounting and higher pulse energy absorption outweigh SMT assembly benefits |
Compared with P4SMA16CA, SMBJ16CA offers identical functionality in a smaller footprint but trades 0.7 V higher clamping; 1.5KE16CA delivers greater energy handling in through-hole form but requires PCB redesign and lacks moisture sensitivity level 1 qualification.
Availability
P4SMA16CA is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC/DC converters, LED driver power supplies, and smart meter auxiliary power inputs requiring stable component supply across extended temperature and surge environments.
Supply support for P4SMA16CA 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, serving global automotive, industrial, and consumer markets since 1979.
The P4SMA16CA belongs to TSC's P4SMAx(A)/P4SMAx(CA) family of surface-mount TVS diodes engineered specifically for ISO 7637-2-compliant automotive and harsh-environment power rail protection - emphasizing reliability, low leakage, and precise bidirectional clamping.
FAQ
What does the "CA" suffix mean in P4SMA16CA?
The "CA" suffix in P4SMA16CA indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics for positive and negative surges. This differs from the unidirectional P4SMA16A, which clamps only in reverse bias. The P4SMA16CA is used where AC-coupled lines or reversible power connections require balanced protection without polarity dependency.
What is the maximum clamping voltage of P4SMA16CA and under what test condition?
The maximum clamping voltage of P4SMA16CA is 22.5 V, measured at a peak pulse current (IPPM) of 18.6 A using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage seen across the device during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is P4SMA16CA compliant with automotive surge immunity standards?
Yes, P4SMA16CA meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a (sudden load release), Pulse 2b (supply interruption), Pulse 3a (capacitive coupled noise), and Pulse 3b (ground bounce). Its 400 W peak pulse power rating, fast <1 ps response, and stable VBR tolerance make it suitable for protecting ECUs, body control modules, and infotainment power inputs in 12 V and 24 V automotive systems.
What is the leakage current specification for P4SMA16CA at its working voltage?
P4SMA16CA exhibits a maximum reverse leakage current (IR) of 1 µA when biased at its working stand-off voltage (VWM) of 13.6 V and tested at 25 °C. This ultra-low leakage preserves system efficiency in always-on circuits such as automotive wake-up receivers and smart meter backup rails, and remains well below typical microcontroller input leakage thresholds.
Does P4SMA16CA require special handling or baking before reflow soldering?
No, P4SMA16CA has a moisture sensitivity level (MSL) of 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions (<30 °C / 60% RH) and placed directly into standard lead-free reflow profiles without pre-baking. Its DO-214AC (SMA) package uses UL 94V-0 molding compound and matte tin-plated leads qualified to J-STD-002, supporting robust first-pass yield in high-volume SMT lines.
P4SMA16CA 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 18.6A
- 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)
P4SMA16CA FAQ
1.How can I place an order for P4SMA16CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA16CA 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 P4SMA16CA reliable?
The price and inventory of P4SMA16CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA16CA is usually 5 days.
3.What payment methods are accepted for P4SMA16CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA16CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA16CA?
P4SMA16CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA16CA 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 P4SMA16CA?
For technical support, including P4SMA16CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA16CA requirements.
6.How does Aetrix verify that P4SMA16CA is sourced from the original manufacturer or authorized distributors?
All P4SMA16CA 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 P4SMA16CA meets industry standards.
7.What is the process for return or replacement of P4SMA16CA?
All P4SMA16CA units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA16CA, 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 P4SMA16CA part is unused and in its original packaging.
Return procedure for P4SMA16CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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