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Taiwan Semiconductor Corporation P4SMA100A
- Part No.:
- P4SMA100A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100A.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,373
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Product details
Overview
P4SMA100A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for overvoltage protection in DC power rails. It features a 95–105 V breakdown voltage (VBR), 85.5 V working stand-off voltage (VWM), 137 V maximum clamping voltage (VC) at 3.0 A peak pulse current, and 400 W peak pulse power rating per 10/1000 µs waveform - used in automotive DC/DC converters and industrial SMPS input stages.
For engineers reviewing the P4SMA100A datasheet, P4SMA100A pinout, P4SMA100A application, or P4SMA100A equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b transients, unidirectional polarity marking, moisture sensitivity level 1 compliance, and compatibility with automated SMT placement on high-reliability power supply PCBs.
Technical Context
The P4SMA100A operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1.0 ps) and low leakage (<1 µA at 85.5 V). Its clamping behavior follows standardized 10/1000 µs surge waveforms per ANSI/IEEE C62.35, with thermal derating above 25°C ambient per Fig.2.
Designed for single-die configuration in DO-214AC package, it supports bidirectional variants only with "C" or "CA" suffixes (e.g., P4SMA100CA); the "A" suffix denotes tighter VBR tolerance (±5% vs ±10% for non-A versions), critical for precise overvoltage threshold control in regulated 100 V rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=1.0 mA | 95–105 V: Ensures reliable avalanche conduction onset within ±5% tolerance for accurate 100 V system-level surge thresholding |
| VWM | 85.5 V: Maximum continuous reverse operating voltage without significant leakage - sets safe margin below nominal 100 V rail |
| VC @ IPPM=3.0 A | 137 V: Clamped voltage during 10/1000 µs surge - limits downstream IC stress to ≤137 V under 400 W transient |
| IR @ VWM | <1 µA: Negligible standby power loss and minimal impact on high-impedance sensing circuits |
| PPPM | 400 W: Peak pulse power handling per standard 10/1000 µs waveform - meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements |
| TJ max | 150 °C: Enables operation in under-hood automotive or enclosed industrial enclosures without forced cooling |
| Package | DO-214AC (SMA): Standardized SMT footprint compatible with JEDEC MS-013, enabling drop-in replacement in existing SMA layouts |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking for unidirectional polarity. Matte tin-plated leads meet J-STD-002 solderability; weight ≈ 0.060 g; UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., GND or return path) in unidirectional configuration |
| Cathode (marked) | Avalanche clamping terminal | Connected to higher-potential side (e.g., +100 V rail); conducts during overvoltage to clamp to VC = 137 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| Fast response time <1.0 ps | Clamps ESD and fast transients before sensitive downstream circuitry sustains damage |
| Moisture sensitivity level 1 | Eliminates bake preconditioning requirement prior to reflow, reducing manufacturing cost and cycle time |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS directives for environmentally constrained industrial and automotive applications |
| ISO 7637-2 certified | Validated for automotive load dump and switching transient immunity (Pulse 1/2a/2b/3a/3b) |
Applications
| Automotive DC/DC Converter Input Protection | Industrial SMPS Primary-Side Clamp |
|---|---|
Use Scenario: Protects 100 V nominal input stage of isolated DC/DC converters in vehicle infotainment and ADAS ECUs against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input rail and ground to clamp surges to ≤137 V within <1 ps. Use Value: Prevents MOSFET gate oxide failure and controller IC latch-up by limiting transient overvoltage to safe levels defined by ISO 7637-2 Pulse 2b. | Use Scenario: Shields primary-side PWM controllers and gate drivers in 100 V industrial switch-mode power supplies from flyback-induced voltage spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between bulk capacitor and ground to absorb repetitive 400 W transients without degradation. Use Value: Maintains system uptime by eliminating premature failure of high-voltage FETs and feedback optocouplers during line surges. |
| Telecom Power Interface Protection | On-Board Battery Management System (BMS) Rail Clamp |
Use Scenario: Safeguards 48–100 V telecom rectifier outputs and PoE++ injectors against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Unidirectional clamping device mounted at board edge to divert surge energy before reaching DC-DC regulators and data interfaces. Use Value: Achieves >20 kV ESD contact immunity and withstands 10/1000 µs surges up to 3.0 A while maintaining <1 µA leakage at 85.5 V. | Use Scenario: Clamps voltage overshoot during cell balancing or relay switching in 96–100 V lithium-ion battery packs used in energy storage systems. IC Role / Device Role / Timing Role: Transient suppressor placed across main BMS power rail to limit voltage excursions during fault events. Use Value: Prevents false triggering of overvoltage protection circuits and preserves integrity of analog front-end measurement accuracy. |
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 (Bourns) | Same DO-214AA package; 400 W rating; VBR = 111–123 V (wider tolerance); VC = 162 V at 2.5 A | Higher clamping voltage reduces margin for 100 V rail protection; better suited for 110 V nominal systems | Select when higher VBR tolerance is acceptable and layout allows DO-214AA footprint |
| 1.5SMC100A (ON Semiconductor) | DO-214AB package; 1500 W rating; VBR = 105–116 V; VC = 165 V at 9.1 A | Higher power rating but larger footprint and higher clamping voltage - overkill for 400 W design points | Choose only if system requires >1 kW surge handling and PCB space permits larger SMC outline |
Compared with SMBJ100A and 1.5SMC100A, the P4SMA100A delivers tighter ±5% VBR tolerance and lower 137 V clamping in a compact DO-214AC package - optimizing protection margin and board area for 100 V DC/DC and SMPS designs where precision clamping and SMT automation are critical.
Availability
P4SMA100A is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switch-mode power supplies, and telecom power interface protection requiring stable component supply and full traceability.
Supply support for P4SMA100A 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for industrial, automotive, and consumer applications.
The P4SMA series belongs to TSC's surface-mount TVS portfolio engineered specifically for high-reliability transient suppression in space-constrained, high-volume SMT environments - emphasizing tight parametric control, ISO 7637-2 compliance, and J-STD-020 Level 1 moisture robustness.
FAQ
What is the breakdown voltage range for P4SMA100A?
The P4SMA100A has a specified breakdown voltage (VBR) range of 95 V to 105 V at 1.0 mA test current, reflecting its ±5% tolerance grade. This tighter specification compared to non-"A" variants (e.g., P4SMA100, ±10%) ensures consistent clamping behavior across production lots and improves design margin predictability in 100 V rail protection circuits.
Is P4SMA100A suitable for bidirectional transient suppression?
No, the P4SMA100A is a unidirectional TVS diode intended for DC rail protection with defined anode/cathode polarity. For bidirectional applications, Taiwan Semiconductor specifies variants with "C" or "CA" suffixes (e.g., P4SMA100CA), which use symmetrical dual-die construction and lack polarity marking - the P4SMA100A must be oriented correctly with cathode toward the protected high-side rail.
What is the maximum clamping voltage of P4SMA100A under surge conditions?
The P4SMA100A exhibits a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 µs surge waveform with a peak current (IPPM) of 3.0 A. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during standardized transient events - critical for ensuring downstream components remain within absolute maximum ratings.
Does P4SMA100A require moisture preconditioning before reflow soldering?
No, the P4SMA100A is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/85% RH without baking or dry-pack requirements. This eliminates pre-reflow bake cycles, reduces manufacturing cost, and avoids thermal stress on the glass-passivated junction - a key advantage for high-throughput SMT lines.
How does P4SMA100A comply with automotive transient standards?
The P4SMA100A meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance-stabilized network pulses), validated via standardized 10/1000 µs testing. Its 400 W peak pulse power rating and 137 V clamping ensure robust immunity in 12 V/24 V/48 V vehicle subsystems scaled to 100 V architectures, including ADAS domain controllers and body electronics modules.
P4SMA100A 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA100A FAQ
1.How can I place an order for P4SMA100A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100A 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 P4SMA100A reliable?
The price and inventory of P4SMA100A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100A is usually 5 days.
3.What payment methods are accepted for P4SMA100A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100A?
P4SMA100A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100A 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 P4SMA100A?
For technical support, including P4SMA100A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100A requirements.
6.How does Aetrix verify that P4SMA100A is sourced from the original manufacturer or authorized distributors?
All P4SMA100A 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 P4SMA100A meets industry standards.
7.What is the process for return or replacement of P4SMA100A?
All P4SMA100A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100A, 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 P4SMA100A part is unused and in its original packaging.
Return procedure for P4SMA100A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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