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Taiwan Semiconductor Corporation P4SMA100AH
- Part No.:
- P4SMA100AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100AH.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,075
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Product details
Overview
P4SMA100AH from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode with a 100V breakdown voltage range (95–105V), 85.5V working stand-off voltage, and 137V clamping voltage at 3.0A peak impulse current under 10/1000μs waveform. It is AEC-Q101 qualified and designed for automotive-grade surge protection in DC/DC converters and power adapters.
For engineers reviewing the P4SMA100AH datasheet, P4SMA100AH pinout, P4SMA100AH application, or P4SMA100AH equivalent, key selection criteria include clamping voltage margin vs. system rail, leakage current at operating voltage, AEC-Q101 qualification status, DO-214AC package thermal performance, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b waveforms.
Technical Context
The P4SMA100AH uses a glass-passivated silicon junction to achieve fast transient response (<1.0 ps) and low leakage (<1 µA at 85.5V). Its unidirectional configuration provides reverse-biased clamping only, with forward voltage limited to 3.5V at 25A surge.
It operates across –55°C to +150°C junction temperature, supports automated SMT placement, and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - enabling reflow compatibility without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 95 V / 105 V - ensures reliable triggering above 85.5 V system rail while avoiding false trips |
| VWM | 85.5 V - maximum continuous reverse voltage before significant leakage begins |
| VC@IPPM | 137 V - clamped voltage during 3.0 A 10/1000 μs surge, defining worst-case overvoltage seen by downstream ICs |
| PPPM | 400 W - peak pulse power handling capability per single non-repetitive transient |
| IR@VWM | <1 µA - negligible standby power loss and minimal impact on high-impedance sensing nodes |
| TJ max | +150 °C - enables operation in under-hood automotive environments and enclosed power supplies |
| Package | DO-214AC (SMA) - industry-standard SMT footprint with 0.060 g mass and UL 94V-0 molding compound |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with cathode band marking; matte tin-plated leads; polarity indicated by band (cathode); weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 85.5 V rail); conducts only during overvoltage transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics use including engine control, body modules, and ADAS power rails |
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| ISO 7637-2 compliance | Withstands standardized automotive load dump and inductive switching transients (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow soldering - reduces manufacturing cost and process risk |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green electronics manufacturing |
Applications
| Switching Mode Power Supply (SMPS) | On-board DC/DC Converter |
|---|---|
Use Scenario: Protection of primary-side MOSFET gate drivers and secondary-side synchronous rectifiers against flyback spikes and cross-conduction surges. IC Role / Device Role: Unidirectional TVS placed across input/output rails to clamp ESD and switching-induced transients. Use Value: Limits transient overshoot to ≤137 V, preventing gate oxide rupture in 100 V-rated FETs and ensuring <1 µA leakage does not disrupt feedback loop stability. | Use Scenario: Input rail protection in 48 V-to-12 V or 12 V-to-5 V automotive DC/DC modules exposed to load dump and jump-start conditions. IC Role / Device Role: Standoff-clamp device mounted directly at converter input terminals to absorb ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2b (battery disconnect). Use Value: Withstands 400 W peak pulses without degradation, maintaining 85.5 V working voltage margin above nominal 72 V max input in 48 V systems. |
| Automotive Lighting Module | Industrial Adapter Input Stage |
Use Scenario: Surge suppression on LED driver inputs subjected to hot-swap events and alternator ripple in headlamp control units. IC Role / Device Role: Primary overvoltage clamp on 12 V or 24 V supply lines feeding buck controllers and CAN transceivers. Use Value: Fast <1.0 ps response captures nanosecond-scale transients from relay coil collapse; AEC-Q101 rating ensures qualification for front-end lighting applications. | Use Scenario: Input-stage protection in universal-input AC/DC adapters used in factory automation equipment with noisy mains environments. IC Role / Device Role: Secondary-side TVS on DC output rails (e.g., +24 V) to protect PLC I/O circuits from backfeed surges and EFT bursts. Use Value: 137 V clamping voltage provides ≥12 V margin above 24 V nominal rail, while DO-214AC package allows high-density layout with minimal PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | Same 100 V VBR range but 600 W PPPM; SMB package (larger footprint, higher thermal mass) | Better suited for higher-energy transients where board space permits larger package | Select SMBJ100A when system-level surge testing exceeds 400 W or thermal derating requires >150°C TJ margin |
| 1.5SMC100A | Same 100 V rating, 1500 W PPPM, DO-214AB (SMC) package; higher IPPM (12.3 A) | Designed for industrial-grade 1.5 kW surge immunity; not AEC-Q101 qualified | Choose 1.5SMC100A for non-automotive applications requiring higher single-pulse robustness and no automotive qualification mandate |
Compared with SMBJ100A and 1.5SMC100A, the P4SMA100AH offers optimal balance of AEC-Q101 compliance, compact DO-214AC footprint, and precise 400 W clamping for cost-sensitive automotive power stages - making it preferred where space, qualification, and energy matching are jointly constrained.
Availability
P4SMA100AH is available at Aetrix Electronics and suitable for automotive power conversion, industrial adapter design, and lighting module development requiring stable component supply and full traceability.
Supply support for P4SMA100AH 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 devices since 1979.
The P4SMA series belongs to TSC's AEC-Q101-qualified surface-mount TVS portfolio, engineered specifically for automotive and industrial transient suppression where reliability, tight VBR tolerance, and ISO 7637-2 compliance are mandatory.
FAQ
What is the clamping voltage of the P4SMA100AH under standard test conditions?
The P4SMA100AH has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs surge waveform at its rated peak pulse current of 3.0 A. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream components remain within absolute maximum ratings.
Is the P4SMA100AH suitable for automotive applications?
Yes, the P4SMA100AH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient standards. Its DO-214AC package, –55°C to +150°C operating range, and moisture sensitivity level 1 make it appropriate for under-hood and body-control module deployments where reliability under thermal and electrical stress is required.
How does the P4SMA100AH differ from the P4SMA100H variant?
The P4SMA100AH features a tighter breakdown voltage range (95–105 V) versus P4SMA100H (90–110 V), resulting in improved consistency for designs sensitive to clamping threshold variation. Both share identical package, power rating (400 W), and AEC-Q101 qualification, but the 'A' suffix denotes enhanced VBR tolerance - beneficial in precision rail protection where margin to VWM must be tightly controlled.
What is the maximum reverse leakage current for the P4SMA100AH at its working voltage?
At its working stand-off voltage (VWM) of 85.5 V, the P4SMA100AH exhibits a maximum reverse leakage current (IR) of 1 µA at 25°C. This ultra-low leakage preserves signal integrity in high-impedance monitoring paths and minimizes quiescent power loss in always-on automotive subsystems - a key advantage over higher-leakage alternatives.
Does the P4SMA100AH require special handling or baking before reflow soldering?
No, the P4SMA100AH is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions and placed directly into reflow without pre-baking. Its DO-214AC package uses UL 94V-0 compliant molding compound and matte tin-plated leads compatible with standard Pb-free reflow profiles - simplifying manufacturing and reducing process risk.
P4SMA100AH 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:
- 1
- Bidirectional Channels:
- -
- 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)
P4SMA100AH FAQ
1.How can I place an order for P4SMA100AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100AH 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 P4SMA100AH reliable?
The price and inventory of P4SMA100AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100AH is usually 5 days.
3.What payment methods are accepted for P4SMA100AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100AH?
P4SMA100AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100AH 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 P4SMA100AH?
For technical support, including P4SMA100AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100AH requirements.
6.How does Aetrix verify that P4SMA100AH is sourced from the original manufacturer or authorized distributors?
All P4SMA100AH 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 P4SMA100AH meets industry standards.
7.What is the process for return or replacement of P4SMA100AH?
All P4SMA100AH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100AH, 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 P4SMA100AH part is unused and in its original packaging.
Return procedure for P4SMA100AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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