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Taiwan Semiconductor Corporation P4SMA22C
- Part No.:
- P4SMA22C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA22C.pdf
- Description:
- 400W, 22V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:7,606
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Product details
Overview
P4SMA22C from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, rated for 400W peak pulse power, 22V breakdown voltage (min 19.8V, max 24.2V), and clamping voltage of 31.9V at 13A. It protects DC/DC converters and lighting circuits against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P4SMA22C datasheet, P4SMA22C pinout, P4SMA22C application, or P4SMA22C equivalent, this page delivers verified electrical specs, clamping behavior under 10/1000μs surge, thermal derating curves, moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance - all critical for automotive and industrial board-level ESD/surge protection design.
Technical Context
The P4SMA22C implements a glass-passivated silicon junction optimized for fast transient response (<1.0 ps) and low leakage (<1 μA at 17.8 V). Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating signal lines without polarity constraints.
It operates across –55°C to +150°C junction temperature range and meets UL 94V-0 flammability rating in its DO-214AC molded package. The device is designed for non-repetitive 10/1000μs surge events per IEC 61000-4-5 and ISO 7637-2, with peak forward surge current rating of 40 A (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 19.8 V / 24.2 V @ IT = 1.0 mA - defines reliable turn-on threshold under standardized test conditions |
| VWM | 17.8 V - maximum continuous reverse operating voltage before significant leakage begins |
| IPPM | 13.0 A @ 10/1000 μs - peak surge current it safely clamps without failure |
| VC@IPPM | 31.9 V - clamped voltage seen by protected circuit during full-rated surge |
| PPPM | 400 W - peak pulse power handling capability under standard waveform |
| TJ max | +150 °C - maximum junction temperature enabling use in high-ambient environments like under-hood automotive |
| MSL | Level 1 (per J-STD-020) - no floor life limitation; safe for standard SMT reflow without dry pack |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability; weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Transient return path (bidirectional) | Provides symmetrical conduction in both polarities; no fixed anode/cathode assignment in bidirectional mode |
| Cathode (banded end) | Transient return path (bidirectional) | Marked terminal used for orientation; functionally identical to anode under reverse or forward surge |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| Fast response time <1.0 ps | Clamps ESD and fast transients before downstream ICs experience overvoltage damage |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive load-dump and inductive-switching immunity per OEM requirements |
| RoHS and halogen-free | Meets IEC 61249-2-21 and EU directives for environmentally constrained production |
| UL 94V-0 molding compound | Prevents flame propagation during fault conditions in enclosed power electronics enclosures |
Applications
| Automotive Lighting Modules | Industrial DC/DC Converters |
|---|---|
Use Scenario: Protecting LED driver ICs and MOSFETs from load dump and alternator ripple in headlamp control units. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed across input rails to shunt surge energy before it reaches regulation stage. Use Value: Withstands 400W pulses up to 13A while limiting rail voltage to ≤31.9V - preserving 36V-rated controllers and gate drivers. | Use Scenario: Safeguarding isolated flyback or buck-boost converter inputs in programmable logic controller (PLC) power supplies. IC Role / Device Role / Timing Role: Primary-side transient suppressor on unregulated DC bus feeding the controller IC and primary switch. Use Value: Clamps ISO 7637-2 Pulse 1 (inductive spike) to 31.9V, preventing latch-up or overvoltage shutdown of PWM controllers. |
| Consumer Adapters | Switch-Mode Power Supplies (SMPS) |
Use Scenario: Input-stage surge protection in universal-input AC/DC adapters for laptops and monitors. IC Role / Device Role / Timing Role: Secondary-side TVS across output rails to absorb reflected transients from connected devices or cable disconnect events. Use Value: Maintains <1 μA leakage at 17.8V working voltage, minimizing standby power loss while delivering 31.9V clamping during 10/1000μs surges. | Use Scenario: Output rail protection in telecom-grade 48V SMPS modules subject to hot-swap and backplane coupling noise. IC Role / Device Role / Timing Role: Bidirectional clamp across regulated output to suppress common-mode transients induced by adjacent switching stages. Use Value: Symmetrical VBR (19.8–24.2V) ensures consistent clamping regardless of transient polarity - critical for floating or differential outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA (Bourns) | Same DO-214AA package; 600W rating; higher IPPM (17.3A); VC = 35.5V | Better suited for higher-energy surges but requires larger PCB footprint than SMA | Select SMBJ22CA when system-level testing shows >400W surge margin is required and layout allows SMB package |
| 1.5KE22CA (ON Semiconductor) | Through-hole DO-15; 1500W rating; VC = 33.2V; slower thermal response | Not suitable for automated SMT assembly; intended for prototyping or legacy through-hole designs | Choose 1.5KE22CA only for manual assembly or where higher peak power justifies leaded form factor |
Compared with P4SMA22C, SMBJ22CA offers higher surge capacity in a slightly larger SMT package, while 1.5KE22CA provides greater peak power in a through-hole format - neither is pin-compatible, but both serve overlapping protection roles in different mechanical contexts.
Availability
P4SMA22C is available at Aetrix Electronics and suitable for automotive lighting modules, industrial DC/DC converters, and consumer adapters requiring stable component supply with J-STD-020 Level 1 moisture handling and RoHS/halogen-free compliance.
Supply support for P4SMA22C 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, and power MOSFETs for industrial and automotive markets.
The P4SMA series belongs to TSC's surface-mount TVS portfolio engineered specifically for ISO 7637-2-compliant board-level surge protection in space-constrained, high-reliability applications such as automotive ECUs and industrial power supplies.
FAQ
What is the breakdown voltage range of the P4SMA22C?
The P4SMA22C has a guaranteed breakdown voltage range of 19.8 V to 24.2 V measured at 1.0 mA test current (VBR@IT). This range reflects manufacturing tolerance and ensures consistent clamping behavior across production lots while maintaining compatibility with 22V nominal systems. The P4SMA22C achieves this specification using a glass-passivated silicon junction structure.
Is the P4SMA22C unidirectional or bidirectional?
The P4SMA22C is a bidirectional TVS diode, indicated by the "C" suffix per Taiwan Semiconductor's ordering convention. It provides symmetrical clamping in both polarities, making it suitable for AC-coupled lines, floating grounds, or circuits where transient polarity cannot be predetermined. Unlike unidirectional variants (e.g., P4SMA22A), the P4SMA22C does not have a fixed anode/cathode functional assignment.
What is the maximum clamping voltage of the P4SMA22C under surge conditions?
The P4SMA22C exhibits a maximum clamping voltage (VC) of 31.9 V when subjected to its rated 10/1000 μs peak impulse current of 13.0 A. This value is measured under standardized surge waveform conditions and represents the highest voltage imposed on the protected circuit during full-rated transient events - a key parameter for ensuring downstream ICs remain within absolute maximum ratings.
Does the P4SMA22C meet automotive transient immunity standards?
Yes, the P4SMA22C is explicitly rated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test waveforms, covering common automotive transient threats including load dump, battery reversal, and inductive switching spikes. Its 400W peak pulse power rating and 150°C junction temperature capability align with AEC-Q200 stress test expectations for passive components in vehicle subsystems.
What packaging and moisture sensitivity level does the P4SMA22C have?
The P4SMA22C is supplied in DO-214AC (SMA) surface-mount package with matte tin-plated leads and is rated MSL Level 1 per J-STD-020 - meaning it has unlimited floor life and may be processed using standard reflow profiles without baking or dry-pack requirements. Its molding compound meets UL 94V-0 flammability standards, supporting use in enclosed industrial and automotive enclosures.
P4SMA22C 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):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 13A
- 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)
P4SMA22C FAQ
1.How can I place an order for P4SMA22C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA22C 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 P4SMA22C reliable?
The price and inventory of P4SMA22C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA22C is usually 5 days.
3.What payment methods are accepted for P4SMA22C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA22C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA22C?
P4SMA22C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA22C 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 P4SMA22C?
For technical support, including P4SMA22C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA22C requirements.
6.How does Aetrix verify that P4SMA22C is sourced from the original manufacturer or authorized distributors?
All P4SMA22C 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 P4SMA22C meets industry standards.
7.What is the process for return or replacement of P4SMA22C?
All P4SMA22C units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA22C, 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 P4SMA22C part is unused and in its original packaging.
Return procedure for P4SMA22C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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