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Taiwan Semiconductor Corporation P4SMA15C
- Part No.:
- P4SMA15C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA15C.pdf
- Description:
- 400W, 15V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:4,695
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Product details
Overview
P4SMA15C from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust ESD and surge protection in DC power rails. It features a 13.5–16.5 V breakdown voltage (VBR), 12.1 V working stand-off voltage (VWM), 22.0 V clamping voltage (VC) at 19.0 A peak pulse current, and 400 W peak pulse power rating under 10/1000 µs waveform - deployed in automotive infotainment power inputs and industrial sensor interface lines.
For engineers reviewing the P4SMA15C datasheet, P4SMA15C pinout, P4SMA15C application, or P4SMA15C equivalent, this page delivers verified electrical parameters, ISO 7637-2 compliance status, clamping behavior under surge stress, moisture sensitivity level (MSL 1), and direct alternatives with documented VBR, VC, and IPPM divergence.
Technical Context
The P4SMA15C is a bipolar (bidirectional) TVS diode, meaning it provides symmetrical clamping in both forward and reverse polarity transients - critical for protecting AC-coupled or floating signal lines and ungrounded DC buses. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and fast response (<1.0 ps), enabling suppression of ESD events per IEC 61000-4-2 and load-dump spikes per ISO 7637-2 Pulse 1/2a/2b/3a/3b.
Thermal derating follows Fig.2 in the datasheet: full 400 W rating applies only at TA = 25°C, decreasing linearly to ~240 W at 100°C ambient. The device operates across –55°C to +150°C junction temperature range and uses matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1.0 mA | 13.5–16.5 V: guaranteed breakdown window ensures reliable turn-on before system overvoltage damage occurs |
| VWM | 12.1 V: maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPPM = 19.0 A | 22.0 V: clamped voltage seen by protected circuit during 10/1000 µs surge - defines worst-case stress on downstream ICs |
| PPPM | 400 W: peak pulse power handling capability under standardized surge waveform, defining single-event survivability |
| IR @ VWM | <1 µA: ultra-low reverse leakage preserves battery life and avoids false triggering in high-impedance sensing nodes |
| TJMAX | +150°C: enables use in under-hood automotive modules and thermally constrained PCB layouts |
| Package | DO-214AC (SMA): industry-standard SMD outline with 0.060 g mass, UL 94V-0 molding, and MSL 1 handling |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking for unidirectional variants; P4SMA15C is bidirectional and marked with "AWJ" code - no polarity marking required. Leads are matte tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge conduction path | Both terminals behave identically - no orientation dependency during placement; clamps positive or negative transients equally |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) - suitable for automotive 12 V systems |
| Fast response time | <1.0 ps junction response enables suppression of sub-nanosecond ESD events before IC latch-up or gate oxide rupture |
| Glass passivated junction | Stable VBR tolerance and low IR drift over temperature and lifetime - critical for long-term reliability in industrial deployments |
| MSL 1 rating | Unlimited floor life at ≤30°C/60% RH - eliminates bake requirements and supports standard SMT reflow without moisture-induced popcorning |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - meets environmental compliance for global OEM BOMs |
Applications
| Automotive Infotainment Power Input | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: 12 V supply rail feeding head unit MCU and display driver ICs exposed to load-dump surges up to 35 V. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed upstream of DC/DC converter input. Use Value: Limits transient voltage to ≤22.0 V during ISO 7637-2 Pulse 1 (−120 V/0.5 Ω), preventing regulator latch-up and MCU brownout. |
Use Scenario: 24 V analog input channel (4–20 mA loop) connected to PLC I/O module subject to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp at terminal block entry point, before signal conditioning op-amp. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <22.0 V within <1 ps, preserving amplifier input stage integrity and measurement accuracy. |
| LED Driver Output Protection | On-Board DC/DC Converter Input |
Use Scenario: Constant-current LED string driver output exposed to accidental short-to-battery or hot-swap transients. IC Role / Device Role / Timing Role: Output-side TVS shunt placed across LED load terminals. Use Value: Absorbs 400 W surge energy without degradation, maintaining LED open-circuit protection function and avoiding driver IC destruction. |
Use Scenario: 48 V to 5 V buck converter input in telecom base station board subjected to lightning-induced surges on backplane traces. IC Role / Device Role / Timing Role: First-line transient suppressor before input capacitor and controller IC. Use Value: Clamps 10/1000 µs surge to 22.0 V while limiting peak current to 19.0 A - compatible with standard 5 V LDO input ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA (Bourns) | Same VWM (12.8 V), lower VC (24.4 V), higher IPPM (24.5 A), SMB package (larger footprint) | Preferred where higher surge margin is needed and PCB space allows SMB outline | Select SMBJ15CA if layout permits larger DO-214AA footprint and clamping voltage margin below 24.4 V is required |
| 1.5SMC15CA (ON Semiconductor) | Same VWM (12.1 V), identical VC (22.0 V), same IPPM (19.0 A), SMC package (3.9 × 2.5 mm vs SMA's 4.5 × 2.7 mm) | Drop-in replacement only if SMC pad layout matches; otherwise requires land pattern revision | Choose 1.5SMC15CA when sourcing diversification is needed and SMC footprint is already standardized in design |
Compared with P4SMA15C, SMBJ15CA offers higher surge current headroom but requires more PCB area, while 1.5SMC15CA matches key electrical specs exactly but demands SMC-compatible layout - neither is pin-compatible due to differing DO-214AC vs DO-214AA vs DO-214AB footprints.
Availability
P4SMA15C is available at Aetrix Electronics and suitable for automotive infotainment power inputs, industrial sensor signal conditioning, LED driver output protection, and on-board DC/DC converter inputs requiring stable component supply across extended temperature and surge environments.
Supply support for P4SMA15C 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The P4SMA15C belongs to TSC's P4SMAx series of 400 W surface-mount TVS diodes engineered for ISO 7637-2-compliant surge immunity in 12 V/24 V vehicle subsystems and ruggedized industrial power interfaces.
FAQ
What is the polarity configuration of P4SMA15C?
P4SMA15C is a bidirectional TVS diode - it has no anode/cathode distinction and provides symmetrical clamping for both positive and negative transients. Unlike unidirectional variants (e.g., P4SMA15A), P4SMA15C does not feature a cathode band marking and is intended for AC-coupled or floating node protection where polarity reversal is possible. This makes P4SMA15C ideal for differential bus lines or ungrounded DC supplies.
Does P4SMA15C meet automotive surge standards?
Yes, P4SMA15C is explicitly rated to meet ISO 7637-2 for automotive transient immunity, covering Pulse 1 (inductive load dump), Pulse 2a/2b (supply interruption and switching noise), and Pulse 3a/3b (capacitive coupling). Its 400 W peak pulse power and 22.0 V clamping voltage at 19.0 A ensure compliance when used with appropriate series impedance per test setup - confirmed in Taiwan Semiconductor's S2102 datasheet, page 1.
What is the maximum operating temperature for P4SMA15C?
P4SMA15C has a specified junction temperature range of –55°C to +150°C, with absolute maximum TJ = +150°C. Derating begins above 25°C ambient per Figure 2 in the datasheet: at 100°C ambient, its peak pulse power drops to approximately 240 W. This thermal capability supports deployment in engine control units, under-dash modules, and industrial motor drives where ambient temperatures exceed 85°C.
How does P4SMA15C compare to P4SMA15A?
P4SMA15A is the unidirectional version with cathode marking, while P4SMA15C is bidirectional with symmetrical characteristics. Electrically, P4SMA15A has VBR = 14.3–15.8 V and VC = 21.2 V at 20.0 A, whereas P4SMA15C has VBR = 13.5–16.5 V and VC = 22.0 V at 19.0 A. The C suffix denotes bidirectional operation - critical for applications like RS-485 or CAN bus where transients may swing either polarity.
Is P4SMA15C halogen-free and RoHS compliant?
Yes, P4SMA15C is certified halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. These compliance attributes are documented in Taiwan Semiconductor's S2102 datasheet, page 1, under "Features" and "Ordering Information" sections.
P4SMA15C 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):
- 12.1V
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 19A
- 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)
P4SMA15C FAQ
1.How can I place an order for P4SMA15C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA15C 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 P4SMA15C reliable?
The price and inventory of P4SMA15C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA15C is usually 5 days.
3.What payment methods are accepted for P4SMA15C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA15C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA15C?
P4SMA15C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA15C 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 P4SMA15C?
For technical support, including P4SMA15C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA15C requirements.
6.How does Aetrix verify that P4SMA15C is sourced from the original manufacturer or authorized distributors?
All P4SMA15C 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 P4SMA15C meets industry standards.
7.What is the process for return or replacement of P4SMA15C?
All P4SMA15C units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA15C, 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 P4SMA15C part is unused and in its original packaging.
Return procedure for P4SMA15C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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