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Taiwan Semiconductor Corporation P4SMA100CAH
- Part No.:
- P4SMA100CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100CAH.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,382
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Product details
Overview
P4SMA100CAH from Taiwan Semiconductor is a bidirectional 400W surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, with 100V breakdown voltage (95–105V), 85.5V working stand-off voltage, 137V clamping voltage at 3.0A peak impulse current, and AEC-Q101 qualification for automotive-grade surge protection in DC/DC converters.
For engineers reviewing the P4SMA100CAH datasheet, P4SMA100CAH pinout, P4SMA100CAH application, or P4SMA100CAH equivalent, key selection criteria include bidirectional clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, low leakage (<1µA @ 85.5V), and compatibility with automated SMT placement on high-reliability power rails.
Technical Context
The P4SMA100CAH implements a glass-passivated silicon junction optimized for fast transient suppression, achieving sub-1ps response time and stable clamping across -55°C to +150°C operating junction temperature. Its bidirectional configuration enables symmetrical protection of AC-coupled or floating signal/power lines without polarity constraints.
Designed per ANSI/IEEE C62.35, it delivers 400W peak pulse power (10/1000μs waveform) with 0.106%/°C VBR temperature coefficient and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - confirming suitability for reflow-soldered automotive and industrial PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 95 V / 105 V at 1.0 mA test current - defines reliable conduction onset under bidirectional transients |
| VWM | 85.5 V - maximum continuous reverse voltage before leakage exceeds 1 µA, setting safe operating margin |
| VC@IPPM | 137 V at 3.0 A (10/1000μs) - peak clamped voltage limiting downstream component stress during surge events |
| PPPM | 400 W - peak pulse power handling capacity per single non-repetitive transient per JEDEC standards |
| IR@VWM | <1 µA - ultra-low reverse leakage preserving efficiency in high-impedance bias networks |
| TJ max | +150 °C - enables operation in under-hood automotive environments and thermally constrained enclosures |
| Package | DO-214AC (SMA) - industry-standard SMT outline with matte tin-plated leads compliant to J-STD-002 solderability |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking for unidirectional variants; P4SMA100CAH is bidirectional and marked with "CXJ" code - no polarity-dependent terminal assignment. Leads are matte tin-plated and compliant with J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | Either terminal serves as anode or cathode depending on instantaneous polarity - eliminates orientation constraints during placement |
| Case | Non-electrical mechanical interface | Plastic molding compound rated UL 94V-0; no internal thermal or electrical connection to die |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including temperature cycling, HTRB, and ESD |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under thermal and humidity stress |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
| Fast response time | <1 ps - ensures clamping activation prior to damage threshold of protected ICs or MOSFETs |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated designs |
Applications
| Automotive Infotainment Power Rail | Industrial PLC I/O Module |
|---|---|
Use Scenario: Protecting 12V/24V supply inputs of head-unit MCUs and display drivers against load-dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed upstream of DC/DC converter input to limit transient overvoltage before regulation. Use Value: Clamps to 137V at 3.0A while maintaining <1µA leakage at 85.5V - prevents brownout or latch-up in sensitive SoCs. | Use Scenario: Safeguarding isolated analog input channels in programmable logic controllers exposed to field-wiring induced transients. IC Role / Device Role / Timing Role: Transient suppressor bridging signal line and ground on sensor interface PCBs with ±15V common-mode range. Use Value: Symmetrical clamping ensures equal protection for positive/negative polarity spikes without external polarity management. |
| On-board DC/DC Converter Input | LED Driver Supply Protection |
Use Scenario: Input-side surge suppression for buck converters powering automotive ADAS cameras or radar modules. IC Role / Device Role / Timing Role: Primary overvoltage guard between battery feed and converter controller IC, absorbing ISO 7637-2 Pulse 1 energy. Use Value: 400W peak power rating sustains single-event clamping without degradation; DO-214AC footprint supports high-density layout. | Use Scenario: Protecting constant-current LED driver ICs in streetlight or vehicle lighting systems from inductive switching spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver input capacitor to shunt transient energy before reaching PWM controller. Use Value: 0.106%/°C VBR coefficient ensures stable clamping threshold across ambient temperatures from -40°C to +125°C. |
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 | 600W rating, SMB package (larger footprint), same VBR range and bidirectional configuration | Better suited for higher-energy transients; requires PCB pad revision due to larger body and lead spacing | Select when system-level testing shows >400W surge exposure or when thermal derating margin is critical |
| 1.5SMC100CA | 1500W rating, SMC package (3.5mm × 7.2mm), higher IPPM (12.3A), same VWM/VC specs | Used in heavy-duty industrial power supplies where space allows larger packages and higher surge immunity is mandated | Choose only if layout permits SMC footprint and application demands >10× energy absorption beyond P4SMA100CAH |
Compared with SMBJ100CA and 1.5SMC100CA, the P4SMA100CAH offers optimal balance of 400W surge capability, compact DO-214AC footprint, and AEC-Q101 qualification - making it preferred for space-constrained automotive and industrial SMT designs requiring verified reliability without over-spec'ing.
Availability
P4SMA100CAH is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC I/O modules, and on-board DC/DC converter inputs requiring stable component supply with full traceability and lifecycle support.
Supply support for P4SMA100CAH 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 with global distribution and AEC-Q101 qualified product lines.
The P4SMA100CAH belongs to TSC's P4SMAx(A)H family - engineered specifically for surface-mount transient suppression in automotive and industrial power systems where reliability, fast response, and standardized packaging are mandatory.
FAQ
What does the 'CAH' suffix indicate in P4SMA100CAH?
The 'CAH' suffix in P4SMA100CAH denotes a bidirectional configuration ('C') with tightened breakdown voltage tolerance ('A': ±5% vs. standard 'H': ±10%) and halogen-free construction ('H'). This means P4SMA100CAH provides symmetrical clamping from –105V to +105V and meets IEC 61249-2-21 environmental requirements - critical for automotive and green electronics designs.
Is P4SMA100CAH compatible with lead-free reflow soldering processes?
Yes, P4SMA100CAH is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the DO-214AC package is rated for peak reflow temperatures up to 260°C per J-STD-020 Moisture Sensitivity Level 1 - enabling standard Pb-free assembly without pre-baking or special handling.
How does P4SMA100CAH perform under ISO 7637-2 Pulse 1 conditions?
P4SMA100CAH is explicitly validated to meet ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling). Its 400W peak pulse rating and 137V clamping voltage at 3.0A ensure robust suppression of the –150V/0.5Ω pulse profile without failure or parameter shift - confirmed in TSC's AEC-Q101 qualification report.
Can P4SMA100CAH replace unidirectional P4SMA100H in existing designs?
No - P4SMA100CAH cannot directly replace unidirectional P4SMA100H without circuit review. While both share identical VBR, VWM, and VC values, P4SMA100CAH is bidirectional and lacks polarity marking; using it in place of a unidirectional device may compromise protection in DC-biased rails. Verify system topology and grounding before substitution.
What is the maximum junction temperature rating for P4SMA100CAH?
The maximum junction temperature (TJMAX) for P4SMA100CAH is +150°C, as specified in its Absolute Maximum Ratings table. This rating enables reliable operation in under-hood automotive environments and enclosed industrial enclosures, provided PCB copper area and airflow meet TSC's thermal derating curve (Figure 2) for sustained power dissipation.
P4SMA100CAH 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA100CAH FAQ
1.How can I place an order for P4SMA100CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100CAH 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 P4SMA100CAH reliable?
The price and inventory of P4SMA100CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100CAH is usually 5 days.
3.What payment methods are accepted for P4SMA100CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100CAH?
P4SMA100CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100CAH 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 P4SMA100CAH?
For technical support, including P4SMA100CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100CAH requirements.
6.How does Aetrix verify that P4SMA100CAH is sourced from the original manufacturer or authorized distributors?
All P4SMA100CAH 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 P4SMA100CAH meets industry standards.
7.What is the process for return or replacement of P4SMA100CAH?
All P4SMA100CAH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100CAH, 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 P4SMA100CAH part is unused and in its original packaging.
Return procedure for P4SMA100CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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