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Taiwan Semiconductor Corporation P4SMA10CA
- Part No.:
- P4SMA10CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA10CA.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,567
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Product details
Overview
P4SMA10CA from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 10V working stand-off voltage (VWM), 14.5V maximum clamping voltage (VC) at 29A peak pulse current, and 400W peak pulse power rating under 10/1000μs waveform - deployed in switching mode power supplies and on-board DC/DC converters.
For engineers reviewing the P4SMA10CA datasheet, P4SMA10CA pinout, P4SMA10CA application, or P4SMA10CA equivalent, key selection criteria include bidirectional clamping capability, DO-214AC (SMA) package compatibility, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and ≤1μA reverse leakage at VWM - critical for low-power, automotive-grade ESD/surge protection design.
Technical Context
The P4SMA10CA implements a glass-passivated silicon junction optimized for fast transient response (<1.0ps) and stable breakdown behavior across -55°C to +150°C operating junction temperature. Its bidirectional configuration enables symmetrical clamping in both polarities without external polarity management.
It meets ISO 7637-2 test requirements for automotive transients (Pulse 1, 2a, 2b, 3a, 3b) and supports automated SMT placement with J-STD-020 Level 1 moisture sensitivity rating and matte tin-plated leads compliant with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.55 V - Maximum continuous reverse voltage before clamping begins; defines safe operating DC bias margin. |
| VBR (min/max) | 9.50 / 10.50 V @ 1.0 mA - Verified breakdown threshold range ensures consistent turn-on across production lots. |
| VC @ IPPM | 14.5 V @ 29 A (10/1000μs) - Peak clamped voltage limits downstream IC stress during surge events. |
| PPPM | 400 W - Sustains high-energy transients without failure; derates linearly above 25°C ambient per Fig.2. |
| IR @ VWM | ≤10 μA - Ultra-low leakage preserves efficiency in battery-backed or high-impedance sensing circuits. |
| Package | DO-214AC (SMA) - Industry-standard surface-mount outline; 0.060g weight; UL 94V-0 molding compound. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with cathode band marking; bidirectional symmetry means no functional anode/cathode distinction - terminals are electrically interchangeable for AC or dual-rail protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient return path (bidirectional) | Functions as cathode during positive surges and anode during negative surges; polarity mark indicates cathode orientation for unidirectional variants only - irrelevant for P4SMA10CA's symmetric operation. |
| Cathode (unmarked end) | Transient return path (bidirectional) | Electrically identical to marked terminal; bidirectional clamping relies on matched junction characteristics in both directions - no directional current path required in circuit layout. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5% for P4SMA10A variant) and long-term reliability under thermal cycling. |
| ISO 7637-2 compliance | Validated for automotive load-dump and supply interruption pulses - eliminates need for additional external filtering in 12V/24V vehicle ECUs. |
| Fast response time | <1.0 ps junction response ensures clamping activation before sensitive logic or analog circuitry sustains damage. |
| J-STD-020 Level 1 MSL | Zero bake requirement prior to reflow; supports standard Pb-free SMT processes without moisture-induced popcorning risk. |
Applications
| Switching Mode Power Supply (SMPS) | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protection of primary-side gate drivers and secondary-side feedback circuits against flyback spikes and line surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across input/output rails to limit transient excursions to ≤14.5V. Use Value: Prevents latch-up or oxide breakdown in PWM controllers (e.g., UC384x, LM5021) during 400W surge events without adding series impedance. | Use Scenario: Input protection for LIN bus transceivers and microcontroller I/O pins exposed to battery line transients. IC Role / Device Role / Timing Role: Standoff voltage (8.55V) aligns with 12V nominal automotive systems; clamps ISO 7637-2 Pulse 1 (inductive switch-off) to safe levels. Use Value: Enables direct connection to unfiltered battery rail while maintaining <10μA leakage - critical for always-on wake-up circuitry. |
| LED Driver Power Stage | Industrial DC/DC Converter |
Use Scenario: Overvoltage suppression on constant-current LED string outputs subject to inductive kickback from MOSFET switching. IC Role / Device Role / Timing Role: Placed across LED output terminals to clamp reverse EMF spikes generated during FET turn-off. Use Value: Limits peak reverse voltage to 14.5V, preventing avalanche failure in LED packages rated for ≤20V reverse bias. | Use Scenario: Input rail protection for isolated 48V-to-12V DC/DC modules in factory automation equipment. IC Role / Device Role / Timing Role: Mounted at module input to absorb 10/1000μs surges up to 400W without derating at full 150°C junction temperature. Use Value: Eliminates need for multi-stage protection (e.g., MOV + TVS), reducing BOM count and PCB area in space-constrained DIN-rail mounted designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA (Bourns) | Same DO-214AA package; 10V VWM, 17V VC @ 24.7A; 600W PPPM rating. | Higher power handling but larger footprint; requires PCB layout revision due to wider body (4.58mm vs SMA's 2.79mm width). | Select SMBJ10CA only when system-level surge testing exceeds 400W - not a drop-in replacement due to package mismatch. |
| 1.5SMC10CA (ON Semiconductor) | DO-214AB (SMC) package; 10V VWM, 17.0V VC @ 23.5A; 1500W PPPM. | Three times higher peak power but 3.5× larger footprint and 10× higher thermal mass - unsuitable for dense SMT layouts. | Choose 1.5SMC10CA for industrial motor drive inputs where space allows; P4SMA10CA remains optimal for compact consumer/automotive modules. |
Compared with SMBJ10CA and 1.5SMC10CA, P4SMA10CA delivers optimal balance of 400W surge capability, DO-214AC footprint compatibility, and ≤10μA leakage - making it the preferred choice for space-constrained, thermally sensitive, and automotive-compliant designs requiring precise 10V standoff.
Availability
P4SMA10CA is available at Aetrix Electronics and suitable for switching mode power supplies, automotive body control modules, and industrial DC/DC converters requiring stable component supply with guaranteed long-term manufacturability and RoHS/halogen-free compliance.
Supply support for P4SMA10CA 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 - headquartered in Hsinchu Science Park, Taiwan.
The P4SMA series belongs to TSC's surface-mount TVS portfolio engineered specifically for automotive-grade transient immunity (ISO 7637-2) and high-reliability industrial power conversion - emphasizing low leakage, tight VBR tolerance, and J-STD-020 Level 1 process compatibility.
FAQ
What is the clamping voltage of P4SMA10CA under standard 10/1000μs surge conditions?
The P4SMA10CA has a maximum clamping voltage (VC) of 14.5 V when subjected to a 10/1000μs waveform at its rated peak pulse current of 29 A. This value is measured per ANSI/IEEE C62.35 and guarantees predictable voltage limiting during real-world transients - critical for protecting 12V-rated ICs downstream of the device.
Is P4SMA10CA unidirectional or bidirectional, and how does that affect circuit placement?
P4SMA10CA is a bidirectional TVS diode, indicated by the "CA" suffix. Unlike unidirectional variants (e.g., P4SMA10A), it provides symmetrical clamping in both polarities - eliminating the need for orientation-aware placement. Engineers may mount it without regard to cathode band direction, simplifying layout and enabling AC-coupled or dual-rail protection.
Does P4SMA10CA meet automotive transient immunity standards?
Yes, P4SMA10CA meets ISO 7637-2 requirements for Pulses 1, 2a, 2b, 3a, and 3b - validated per manufacturer test data. Its 8.55V working stand-off voltage and 14.5V clamping performance align directly with 12V automotive electrical systems, supporting use in body control modules, infotainment power rails, and sensor interface protection without additional filtering.
What is the maximum operating junction temperature for P4SMA10CA?
The P4SMA10CA has a maximum operating junction temperature (TJ MAX) of +150°C, with a specified operating range from -55°C to +150°C. This rating enables reliable deployment in under-hood automotive environments and enclosed industrial power supplies - provided PCB copper area and airflow meet thermal derating curves shown in Figure 2 of the datasheet.
How does the DO-214AC (SMA) package of P4SMA10CA compare to SMB or SMC alternatives in terms of board space?
The DO-214AC (SMA) package used by P4SMA10CA measures 2.79 mm × 4.57 mm - significantly smaller than DO-214AA (SMB: 3.94 mm × 4.57 mm) and DO-214AB (SMC: 5.28 mm × 4.57 mm). This compact footprint reduces PCB area by ~35% versus SMB and ~55% versus SMC, making P4SMA10CA ideal for space-constrained applications like portable medical chargers and compact LED drivers.
P4SMA10CA 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):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 29A
- 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)
P4SMA10CA FAQ
1.How can I place an order for P4SMA10CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA10CA 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 P4SMA10CA reliable?
The price and inventory of P4SMA10CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA10CA is usually 5 days.
3.What payment methods are accepted for P4SMA10CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA10CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA10CA?
P4SMA10CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA10CA 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 P4SMA10CA?
For technical support, including P4SMA10CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA10CA requirements.
6.How does Aetrix verify that P4SMA10CA is sourced from the original manufacturer or authorized distributors?
All P4SMA10CA 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 P4SMA10CA meets industry standards.
7.What is the process for return or replacement of P4SMA10CA?
All P4SMA10CA units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA10CA, 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 P4SMA10CA part is unused and in its original packaging.
Return procedure for P4SMA10CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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