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Taiwan Semiconductor Corporation P4SMA150CA
- Part No.:
- P4SMA150CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150CA.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,925
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Product details
Overview
P4SMA150CA 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 and signal lines. It features a 121 V working stand-off voltage (VWM), 135–165 V breakdown voltage (VBR) at 1 mA, 215 V maximum clamping voltage (VC) at 1.9 A peak pulse current, and 400 W peak pulse power rating under 10/1000 µs waveform - deployed in automotive body control modules and industrial DC/DC converters.
For engineers reviewing the P4SMA150CA datasheet, P4SMA150CA pinout, P4SMA150CA application, or P4SMA150CA equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, ISO 7637-2 compliance, DO-214AC mechanical interface details, and real-world selection guidance for surge protection in 12–48 V systems.
Technical Context
The P4SMA150CA implements a silicon avalanche junction structure with glass passivation, enabling sub-nanosecond response (<1.0 ps) to fast transients while maintaining low leakage (<1 µA at 121 V). Its bidirectional configuration supports symmetric clamping in AC-coupled or floating bus applications without polarity dependency.
Rated for -55°C to +150°C junction operation and compliant with JESD201 Class 2 whisker resistance, it sustains 40 A non-repetitive forward surge (IFSM) and meets UL 94V-0 flammability requirements in its molded DO-214AC housing - critical for under-hood automotive and high-reliability industrial deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 121 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR min/max | 135 V / 165 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and unit variation |
| VC @ IPPM | 215 V at 1.9 A (10/1000 µs) - Peak clamped voltage seen by protected circuit during standardized surge event |
| PPPM | 400 W - Sustained transient energy absorption capability without degradation under single-pulse stress |
| IR @ VWM | <1 µA - Negligible standby power loss and minimal loading on sensitive upstream sources |
| TJ max | +150 °C - Enables placement near heat-generating components (e.g., MOSFETs, inductors) in compact power stages |
| Configuration | Bidirectional - Provides symmetrical protection for AC signals, differential buses, or ungrounded DC rails without polarity constraints |
Pinout & Package
DO-214AC (SMA) surface-mount package: 2-terminal, cathode-banded case with matte tin-plated leads; 0.060 g mass; moisture sensitivity level 1 (J-STD-020); RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Transient conduction path | Both terminals function identically - no polarity assignment; conducts surge current in either direction once VBR exceeded |
| Case (body) | Mechanical mounting / thermal path | Non-electrical; provides mechanical anchoring and limited heat dissipation to PCB copper; no internal connection |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 215 V VC at 1.9 A ensures downstream ICs rated to 200 V withstand ISO 7637-2 Pulse 1/2a/2b/3a/3b surges |
| Response speed | <1.0 ps enables suppression of ESD and fast-edge transients before logic or analog circuitry responds |
| Leakage control | <1 µA IR at 121 V prevents battery drain in always-on automotive modules and preserves sensor bias accuracy |
| Automated assembly support | DO-214AC footprint and matte tin plating ensure reliable reflow soldering per J-STD-002 standards |
| Environmental compliance | RoHS, halogen-free (IEC 61249-2-21), and UL 94V-0 molding compound meet Tier 1 automotive and industrial safety mandates |
Applications
| Automotive Body Control Module | Industrial DC/DC Converter Input |
|---|---|
Use Scenario: Protects LIN bus transceivers and microcontroller I/O against load dump and alternator ripple in vehicle door modules. IC Role / Device Role / Timing Role: Bidirectional TVS clamps both positive and negative transients on ungrounded LIN lines without requiring external polarity management. Use Value: Maintains <1 µA leakage at 12 V nominal rail, preventing false wake-up in sleep mode while clamping 120 V spikes to ≤215 V. |
Use Scenario: Shields primary-side controller ICs and gate drivers from switching-induced voltage overshoot in 24 V input isolated DC/DC supplies. IC Role / Device Role / Timing Role: Absorbs 400 W transient energy within 10/1000 µs, limiting reflected voltage to 215 V during MOSFET turn-off events. Use Value: Enables use of 200 V-rated FETs and controllers without derating, reducing BOM cost versus higher-voltage alternatives. |
| LED Driver Power Input | Telecom Line Interface |
Use Scenario: Guards constant-current LED driver ICs against inductive kickback from relay-controlled 48 V lighting circuits. IC Role / Device Role / Timing Role: Clamps bidirectional flyback spikes generated during relay coil de-energization, protecting driver enable pins and feedback nodes. Use Value: Withstands repeated 1.9 A pulses without parameter shift, ensuring >10-year field reliability in streetlight control units. |
Use Scenario: Provides secondary-side surge protection on RS-485 or CAN FD data lines exposed to induced lightning transients in outdoor base stations. IC Role / Device Role / Timing Role: Limits common-mode voltage excursions to ≤215 V during 1 kV/500 A telecom surge tests (IEC 61000-4-5), preserving transceiver integrity. Use Value: Bidirectional symmetry eliminates need for dual unidirectional devices, saving PCB area and assembly cost in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA (Bourns) | Same VWM (121 V), identical DO-214AA package but 600 W PPPM rating; 20% larger footprint than DO-214AC | Higher power handling suits 24 V telecom systems with frequent surge exposure; less suitable for ultra-compact automotive PCBs | Select SMBJ150CA only when 600 W headroom is required and board space permits larger SMA variant |
| 1.5KE150CA (ON Semiconductor) | Same VWM/VBR/VC specs but axial-leaded DO-15 package; 1500 W PPPM; not surface-mountable | Requires through-hole assembly and manual rework; incompatible with automated SMT lines and high-density layouts | Choose 1.5KE150CA only for prototyping or legacy through-hole designs where reflow compatibility is not needed |
Compared with SMBJ150CA and 1.5KE150CA, the P4SMA150CA delivers optimal balance of 400 W surge capacity, DO-214AC SMT compatibility, and minimal 0.060 g mass - making it the preferred choice for volume automotive and industrial PCBs where automated placement and thermal density matter.
Availability
P4SMA150CA is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC/DC converters, LED driver inputs, and telecom line interfaces requiring stable component supply across multi-year production cycles.
Supply support for P4SMA150CA 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 P4SMA150CA belongs to TSC's P4SMAx family of surface-mount TVS diodes engineered specifically for ISO 7637-2-compliant transient suppression in 12–48 V automotive and industrial power systems.
FAQ
What is the clamping voltage of the P4SMA150CA under standard surge conditions?
The P4SMA150CA has a maximum clamping voltage (VC) of 215 V when subjected to a 10/1000 µs waveform with a peak impulse current (IPPM) of 1.9 A. This value is measured per ANSI/IEEE C62.35 and guarantees that protected downstream circuitry will not experience voltages exceeding 215 V during standardized transient events - critical for safeguarding 200 V-rated components in automotive and industrial applications. The P4SMA150CA maintains this clamping performance across its full operating temperature range.
Is the P4SMA150CA unidirectional or bidirectional, and how does that affect circuit design?
The P4SMA150CA is a bidirectional TVS diode, indicated by the "CA" suffix, meaning it provides symmetrical clamping for both positive- and negative-going transients without polarity constraints. Unlike unidirectional variants (e.g., P4SMA150A), it requires no orientation during placement and protects AC-coupled or floating DC lines - simplifying layout and eliminating risk of reverse installation. This makes the P4SMA150CA ideal for LIN bus, RS-485, and other differential or ungrounded signal paths where polarity cannot be assumed.
Does the P4SMA150CA meet automotive surge immunity standards?
Yes, the P4SMA150CA meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), validated via its 400 W peak pulse power rating and 215 V clamping voltage. Its -55°C to +150°C operating junction temperature range and JESD201 Class 2 whisker resistance further align with AEC-Q101 stress test profiles - though formal qualification requires system-level validation. The P4SMA150CA is widely deployed in automotive body control modules for this reason.
What is the maximum leakage current of the P4SMA150CA at its working voltage?
The P4SMA150CA exhibits a maximum reverse leakage current (IR) of 1 µA when biased at its working stand-off voltage (VWM) of 121 V, measured at 25°C. This ultra-low leakage ensures minimal power loss in always-on systems such as automotive body electronics in sleep mode and preserves accuracy in high-impedance sensing circuits. The P4SMA150CA maintains leakage below 5 µA even at +125°C ambient, supporting reliable operation in thermally demanding environments.
Can the P4SMA150CA be used in place of the P4SMA150A in existing designs?
No - the P4SMA150CA and P4SMA150A are not interchangeable without circuit review. The P4SMA150A is unidirectional (anode-cathode polarized), while the P4SMA150CA is bidirectional. Substituting one for the other may cause improper clamping or open-circuit failure if installed in a polarity-sensitive location. The P4SMA150CA must be used only where bidirectional protection is explicitly required and verified. Always confirm layout polarity markings and schematic symbol before replacement; the P4SMA150CA is not a drop-in substitute for P4SMA150A.
P4SMA150CA 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2A
- 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)
P4SMA150CA FAQ
1.How can I place an order for P4SMA150CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150CA 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 P4SMA150CA reliable?
The price and inventory of P4SMA150CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150CA is usually 5 days.
3.What payment methods are accepted for P4SMA150CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150CA?
P4SMA150CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150CA 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 P4SMA150CA?
For technical support, including P4SMA150CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150CA requirements.
6.How does Aetrix verify that P4SMA150CA is sourced from the original manufacturer or authorized distributors?
All P4SMA150CA 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 P4SMA150CA meets industry standards.
7.What is the process for return or replacement of P4SMA150CA?
All P4SMA150CA units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150CA, 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 P4SMA150CA part is unused and in its original packaging.
Return procedure for P4SMA150CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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