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Taiwan Semiconductor Corporation P4SMA100H
- Part No.:
- P4SMA100H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100H.pdf
- Description:
- 400W, 100V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,368
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Product details
Overview
P4SMA100H from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power lines and signal paths. It features a 90–110 V breakdown voltage (VBR), 81.0 V working stand-off voltage (VWM), 144 V maximum clamping voltage (VC) at 2.9 A peak impulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P4SMA100H datasheet, P4SMA100H pinout, P4SMA100H application, or P4SMA100H equivalent, this device is selected for robust surge immunity in on-board DC/DC converters, SMPS front-ends, and automotive lighting modules where fast response (<1.0 ps), low leakage (<1 µA @ VWM), and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance are required.
Technical Context
The P4SMA100H operates as a unidirectional avalanche diode with glass-passivated junction, enabling stable clamping under repetitive transients. Its DO-214AC (SMA) package supports automated placement and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
It delivers 400 W peak pulse power (10/1000 µs waveform) with a maximum clamping voltage of 144 V at 2.9 A, and exhibits a temperature coefficient of VBR of 0.106 %/°C - critical for thermal stability across -55 °C to +150 °C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1.0 mA | 90–110 V - defines minimum and maximum avalanche onset voltage under standardized test conditions |
| VWM | 81.0 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM = 2.9 A | 144 V - clamped voltage during 10/1000 µs surge, limiting downstream circuit stress |
| IR @ VWM | <1 µA - ensures negligible standby power loss and signal integrity in high-impedance circuits |
| PPPM | 400 W - peak transient energy absorption capability per single non-repetitive event |
| TJ Range | -55 °C to +150 °C - enables deployment in under-hood automotive and industrial environments |
| Package | DO-214AC (SMA) - industry-standard surface-mount outline with cathode band marking |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case with matte tin-plated leads, polarity indicated by cathode band; weight ≈ 0.060 g; UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in unidirectional TVS configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 12 V rail); conducts when transient exceeds VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, UHAST, and ESD |
| Clamping performance | VC/VBR ratio ≤ 1.6 - ensures tight voltage control during surge events without excessive overshoot |
| Response time | <1.0 ps - enables suppression of fast-rising ESD and lightning-induced transients before IC damage occurs |
| Moisture sensitivity | Level 1 per J-STD-020 - allows unlimited floor life and standard reflow without baking preconditioning |
| ISO 7637-2 compliance | Passes Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
Applications
| Automotive Lighting Module | On-Board DC/DC Converter |
|---|---|
Use Scenario: Protecting LED driver ICs and MOSFETs from load-dump transients in 12 V/24 V vehicle lighting systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and ground to clamp voltage spikes up to 120 V during alternator load dump. Use Value: Prevents latch-up or gate oxide rupture in downstream drivers by limiting peak voltage to 144 V at 2.9 A, within safe SOA margins. | Use Scenario: Safeguarding primary-side controller and secondary-side rectifier in isolated buck-boost DC/DC modules. IC Role / Device Role / Timing Role: Front-end transient suppressor on input bus, absorbing coupled noise from adjacent switching stages and external EMI. Use Value: Maintains system uptime by suppressing 400 W surges without degradation, leveraging <1 µA leakage to avoid bias current errors in feedback networks. |
| Industrial SMPS Input Stage | USB-C Power Delivery Interface |
Use Scenario: Guarding AC-DC adapter primary-side rectifier and bulk capacitor against line surges and switching transients. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 81.0 V) placed after bridge rectifier to absorb residual AC-line transients before bulk filtering. Use Value: Enables compact design with DO-214AC footprint while meeting IEC 61000-4-5 Level 3 (2 kV) surge immunity via 144 V clamping. | Use Scenario: Protecting USB-C CC logic and VBUS monitoring circuitry from hot-swap and cable-insertion transients. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) unidirectional TVS on VBUS line, sized to clamp 10/1000 µs surges without affecting PD negotiation timing. Use Value: Ensures reliable communication handshake by preventing false overvoltage faults during 20 V PD transitions, supported by AEC-Q101 reliability for long-life deployments. |
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 | 600 W rating, higher VC = 165 V at 3.6 A, SMB package (larger footprint) | Better suited for higher-energy surges but requires PCB area increase and layout revision | Select when system-level surge testing exceeds 400 W or when legacy SMB layout exists |
| 1.5SMC100A | 1500 W rating, DO-214AB (SMC) package, VC = 165 V at 9.1 A | Designed for heavy-duty industrial mains protection, not optimized for space-constrained automotive modules | Choose only if peak pulse power requirement exceeds 400 W and board space permits larger SMC outline |
Compared with SMBJ100A and 1.5SMC100A, the P4SMA100H offers optimal balance of compact DO-214AC footprint, AEC-Q101 qualification, and precise 144 V clamping - making it preferred for automotive and space-sensitive DC/DC designs where 400 W surge handling suffices.
Availability
P4SMA100H is available at Aetrix Electronics and suitable for automotive lighting modules, on-board DC/DC converters, and industrial SMPS input stages requiring stable component supply, AEC-Q101 compliance, and consistent surge immunity performance.
Supply support for P4SMA100H 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 Company (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power devices for automotive and industrial markets.
The P4SMA100H belongs to TSC's AEC-Q101-qualified P4SMAxH series - engineered specifically for high-reliability transient suppression in automotive power electronics and harsh-environment DC/DC conversion.
FAQ
Is P4SMA100H unidirectional or bidirectional?
The P4SMA100H is a unidirectional TVS diode, indicated by the absence of "CAH" suffix and confirmed by its cathode-band marking and single-polarity clamping behavior. It conducts only during reverse overvoltage events - forward conduction is limited to 3.5 V at 25 A per absolute maximum ratings. Bidirectional variants use "CAH" suffix (e.g., P4SMA100CAH).
What is the maximum clamping voltage of P4SMA100H and under what test condition?
The maximum clamping voltage of P4SMA100H is 144 V, measured at a peak impulse current (IPPM) of 2.9 A using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and represents worst-case voltage seen by protected circuitry during surge events.
Does P4SMA100H meet automotive qualification standards?
Yes, P4SMA100H is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements for automotive electrical disturbances. Its DO-214AC package also satisfies JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - essential for lead-free reflow in automotive manufacturing.
Can P4SMA100H be used in bidirectional signal lines?
No, P4SMA100H is not suitable for bidirectional signal protection due to its unidirectional architecture. For AC-coupled or differential signal lines requiring symmetrical clamping, select the bidirectional variant P4SMA100CAH, which provides identical VBR and VC characteristics in both polarities.
What is the leakage current specification for P4SMA100H at its working voltage?
The maximum reverse leakage current (IR) for P4SMA100H is less than 1 µA when biased at its working stand-off voltage (VWM) of 81.0 V. This ultra-low leakage preserves signal integrity in high-impedance monitoring circuits and minimizes standby power loss in battery-powered systems using the P4SMA100H.
P4SMA100H 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):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- 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)
P4SMA100H FAQ
1.How can I place an order for P4SMA100H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100H 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 P4SMA100H reliable?
The price and inventory of P4SMA100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100H is usually 5 days.
3.What payment methods are accepted for P4SMA100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100H?
P4SMA100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100H 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 P4SMA100H?
For technical support, including P4SMA100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100H requirements.
6.How does Aetrix verify that P4SMA100H is sourced from the original manufacturer or authorized distributors?
All P4SMA100H 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 P4SMA100H meets industry standards.
7.What is the process for return or replacement of P4SMA100H?
All P4SMA100H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100H, 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 P4SMA100H part is unused and in its original packaging.
Return procedure for P4SMA100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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