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Taiwan Semiconductor Corporation P4SMA100CA
- Part No.:
- P4SMA100CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100CA.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,447
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Product details
Overview
P4SMA100CA 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 100 V working stand-off voltage (VWM), 144 V maximum clamping voltage (VC) at 3.0 A peak pulse current, and 400 W peak pulse power rating under 10/1000 µs waveform - deployed in switching mode power supplies and automotive body electronics.
For engineers reviewing the P4SMA100CA datasheet, P4SMA100CA pinout, P4SMA100CA application, or P4SMA100CA equivalent, key selection criteria include bidirectional clamping symmetry, low leakage (<1 µA at 85.5 V), ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and DO-214AC (SMA) package compatibility with automated SMT assembly.
Technical Context
The P4SMA100CA implements a glass-passivated silicon junction optimized for fast transient response (<1.0 ps typical) and stable breakdown behavior across temperature. Its bidirectional configuration enables symmetric clamping in both polarities without external polarity management, supporting unidirectional or bidirectional surge suppression in shared-bus or floating-rail systems.
Electrical characteristics are specified per ANSI/IEEE C62.35, with breakdown voltage (VBR) ranging 95–105 V at 1.0 mA test current and temperature coefficient of VBR at 0.106 %/°C. The device operates from −55 °C to +150 °C junction temperature and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - Maximum continuous reverse voltage before significant leakage; defines safe operating DC rail margin |
| VBR min/max | 95 / 105 V @ 1.0 mA - Tight 5% tolerance ensures predictable turn-on threshold across production lots |
| VC @ IPPM | 137 V @ 3.0 A (10/1000 µs) - Clamping voltage limits downstream IC stress during ISO 7637-2 Pulse 5a surges |
| PPPM | 400 W - Peak power handling capacity for transient events up to 1 ms duration |
| IR @ VWM | <1 µA - Negligible standby leakage preserves battery life in always-on automotive modules |
| TJ max | +150 °C - Enables placement near heat-generating components like MOSFETs or inboard DC/DC converters |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, bi-directional, cathode band not applicable (bidirectional symmetry). Matte tin-plated leads, UL 94V-0 molding compound, 0.060 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No polarity marking required; terminals interchangeable - simplifies PCB layout and eliminates orientation errors in automated assembly |
| Cathode Band (N/A) | Not present | Confirms true bidirectional construction - no internal asymmetry; identical clamping in positive/negative surge events |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term reliability and stable VBR drift under thermal cycling and humidity exposure |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive ECU-level surge immunity without additional filtering or derating |
| Fast response time <1.0 ps | Clamps transients before sensitive logic or analog circuitry sustains damage - critical for CAN/LIN bus protection |
| Moisture Sensitivity Level 1 | Zero bake requirement prior to reflow; supports standard JEDEC J-STD-020 handling and storage |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter Input Stage |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O against load dump and inductive switching spikes in door module ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector interface to shunt surge energy before it reaches PHY layer. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive spike), enabling single-device protection without series impedance or RC filtering. | Use Scenario: Safeguarding primary-side controller ICs and gate drivers in 24 V input industrial DC/DC converters subjected to field wiring transients. IC Role / Device Role / Timing Role: Front-end transient suppressor on VIN rail, positioned upstream of input capacitor and controller enable pin. Use Value: Limits peak rail voltage to ≤137 V during 400 W surges, preventing overvoltage lockout or latch-up in PWM controllers such as UC384x or LM5017. |
| LED Driver Power Supply | Smart Meter Communication Interface |
Use Scenario: Suppressing switching noise and line surges in constant-current LED drivers used in street lighting with long AC feeders. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to clamp differential-mode transients induced by nearby motor loads. Use Value: Withstands repeated 10/1000 µs surges up to 400 W while maintaining <1 µA leakage at 85.5 V - avoids efficiency loss in high-efficiency (>90%) topologies. | Use Scenario: Protecting RS-485 transceivers in utility smart meters exposed to lightning-induced surges on long outdoor data cables. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between transceiver VCC/GND and data lines (A/B) to absorb common-mode energy. Use Value: Symmetric 137 V clamping in both directions prevents latch-up in isolated RS-485 PHYs (e.g., ADM2483) during ±1 kV EFT bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA (Bourns) | Same DO-214AA package; 100 V VWM, 156 V VC @ 2.6 A; 600 W PPPM rating | Higher power rating suits longer-duration surges but larger package footprint may limit layout density | Select when higher peak power margin is needed and SMB footprint is acceptable |
| 1.5KE100CA (ON Semiconductor) | DO-201AD (Axial leaded); 100 V VWM, 156 V VC @ 2.6 A; 1500 W PPPM | Through-hole mounting only; unsuitable for fully SMT designs; better for prototyping or low-volume repair | Select only for legacy through-hole systems or manual-rework scenarios where DO-214AC is unavailable |
Compared with SMBJ100CA and 1.5KE100CA, the P4SMA100CA offers optimal balance of compact DO-214AC footprint, precise 137 V clamping, and full ISO 7637-2 compliance - making it preferred for space-constrained automotive and industrial SMT assemblies requiring repeatable surge immunity.
Availability
P4SMA100CA is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC/DC converters, LED driver power supplies, and smart meter communication interfaces requiring stable component supply and full traceability.
Supply support for P4SMA100CA 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 for industrial and automotive markets.
The P4SMA100CA belongs to TSC's P4SMAx family of surface-mount TVS diodes engineered specifically for high-reliability, automated SMT deployment in harsh-environment applications including automotive electronics and industrial power systems.
FAQ
What is the clamping voltage of the P4SMA100CA under standard 10/1000 µs surge conditions?
The P4SMA100CA has a maximum clamping voltage (VC) of 137 V at 3.0 A peak pulse current under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable voltage limiting during transient events - critical for protecting downstream 150 V-rated MOSFETs or 120 V-input DC/DC controllers. The P4SMA100CA maintains this performance across its full operating temperature range.
Is the P4SMA100CA suitable for bidirectional surge protection without polarity concerns?
Yes, the P4SMA100CA is explicitly designed as a bidirectional TVS diode, indicated by the "CA" suffix. Its symmetrical breakdown characteristics (95–105 V in both directions) eliminate the need for orientation-specific placement. This makes the P4SMA100CA ideal for protecting AC-coupled lines, floating buses, or dual-polarity rails where polarity reversal or undefined signal direction occurs - unlike unidirectional variants such as P4SMA100A.
Does the P4SMA100CA meet automotive surge immunity standards?
Yes, the P4SMA100CA is rated to meet ISO 7637-2 for Pulses 1, 2a, 2b, 3a, and 3b - covering key automotive transient profiles including battery disconnect, load dump simulation, and capacitive coupling spikes. Its 400 W peak pulse power rating, low leakage (<1 µA), and 150 °C junction rating align with AEC-Q101 stress test requirements, though formal qualification must be verified per application-specific validation protocols using the P4SMA100CA.
What is the package type and mounting compatibility of the P4SMA100CA?
The P4SMA100CA uses the DO-214AC (SMA) surface-mount package - a compact, rectangular, gull-wing leaded outline measuring 4.5 × 2.7 × 2.1 mm. It is compatible with standard reflow soldering profiles (J-STD-020 Level 1), features matte tin-plated leads, and supports automated pick-and-place assembly. The P4SMA100CA requires no pre-bake and fits standard SMA footprint land patterns defined in IPC-7351.
How does the P4SMA100CA compare to the P4SMA100A in terms of electrical performance?
The P4SMA100CA is bidirectional with symmetrical clamping, whereas the P4SMA100A is unidirectional. The P4SMA100CA has VWM = 85.5 V and VC = 137 V @ 3.0 A, while the P4SMA100A shares identical VWM and VC values but conducts only in reverse bias. Both use the same DO-214AC package and thermal specs, but the P4SMA100CA eliminates polarity marking and layout constraints - making it preferable for differential or floating node protection where the P4SMA100CA's bidirectional operation adds design flexibility.
P4SMA100CA 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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 3A
- 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)
P4SMA100CA FAQ
1.How can I place an order for P4SMA100CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100CA 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 P4SMA100CA reliable?
The price and inventory of P4SMA100CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100CA is usually 5 days.
3.What payment methods are accepted for P4SMA100CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100CA?
P4SMA100CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100CA 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 P4SMA100CA?
For technical support, including P4SMA100CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100CA requirements.
6.How does Aetrix verify that P4SMA100CA is sourced from the original manufacturer or authorized distributors?
All P4SMA100CA 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 P4SMA100CA meets industry standards.
7.What is the process for return or replacement of P4SMA100CA?
All P4SMA100CA units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100CA, 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 P4SMA100CA part is unused and in its original packaging.
Return procedure for P4SMA100CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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