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Taiwan Semiconductor Corporation P4SMA110A
- Part No.:
- P4SMA110A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110A.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,059
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Product details
Overview
P4SMA110A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power lines and signal paths. It features a 94.0 V working stand-off voltage, 105–116 V breakdown voltage at 1 mA, 152 V maximum clamping voltage at 2.7 A (10/1000 µs), 400 W peak pulse power rating, and operates across –55 °C to +150 °C junction temperature range - deployed in on-board DC/DC converters and industrial SMPS inputs.
For engineers reviewing the P4SMA110A datasheet, P4SMA110A pinout, P4SMA110A application, or P4SMA110A equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, low leakage (<1 µA at VWM), DO-214AC (SMA) package compatibility with automated placement, and thermal derating behavior above 25 °C ambient.
Technical Context
The P4SMA110A employs a glass-passivated silicon junction optimized for fast transient suppression with typical response time under 1.0 ps. Its unidirectional configuration provides asymmetric conduction: low forward voltage (3.5 V at 25 A) during surge events and high reverse blocking up to 94.0 V under normal operation.
It meets ISO 7637-2 compliance for automotive load-dump and switching transients, supports JESD201 Class 2 whisker resistance, and uses UL 94V-0 compliant molding compound. The device is rated for 40 A non-repetitive forward surge (8.3 ms half-sine) and exhibits a VBR temperature coefficient of 0.107 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 94.0 V - Maximum continuous reverse operating voltage before significant leakage begins; sets system-level DC bus margin. |
| VBR min/max | 105–116 V at 1 mA - Confirmed breakdown range ensures reliable turn-on during transients without premature conduction. |
| VC @ IPPM | 152 V at 2.7 A (10/1000 µs) - Clamping voltage defines worst-case voltage seen by protected downstream circuitry. |
| PPPM | 400 W - Peak pulse power handling capacity per single 10/1000 µs waveform; determines survivability against defined surge profiles. |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves efficiency in high-impedance bias networks and battery-powered systems. |
| TJ max | +150 °C - Enables use in under-hood automotive modules and thermally constrained industrial enclosures without derating penalties. |
| Package | DO-214AC (SMA) - Standardized SMT outline compatible with IPC-7351B footprint; supports reflow and wave soldering per J-STD-002. |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; dual-terminal construction (anode/cathode); matte tin-plated leads; polarity indicated by molded cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-biased TVS operation | Connected to ground or low-impedance return path; establishes reference for clamping action toward this node. |
| Cathode | Protected line input terminal | Connected to the line being protected (e.g., DC input rail); conducts surge current to anode when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under humidity and thermal cycling stress. |
| Clamping ratio (VC/VBR) | ~1.36 (152 V / 112 V avg) - Low ratio minimizes voltage overshoot during surge events relative to breakdown threshold. |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line spikes) - meets automotive ECU protection requirements. |
| Moisture sensitivity level | MSL Level 1 (per J-STD-020) - No floor life limitation; safe for standard SMT assembly without baking. |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - suitable for green manufacturing and export markets. |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter Input Stage |
|---|---|
Use Scenario: Protects microcontroller I/O and CAN transceiver power rails from load-dump transients during battery disconnect/reconnect events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply rail and chassis ground to clamp surges up to ±100 V. Use Value: Limits voltage excursion to ≤152 V during ISO 7637-2 Pulse 5a (load dump), preventing latch-up or permanent damage to 3.3 V/5 V logic supplies. |
Use Scenario: Shields primary-side MOSFET gate drivers and controller ICs from flyback-induced voltage spikes in isolated buck-boost converters. IC Role / Device Role / Timing Role: Fast-response TVS mounted directly at DC input terminals to absorb 400 W pulses before energy reaches regulation stage. Use Value: Maintains <1 µA leakage at 94 V, avoiding parasitic loading on feedback dividers while delivering sub-ns response to 10/1000 µs transients. |
| LED Driver Power Supply | Telecom Line Card Protection |
Use Scenario: Guards constant-current LED driver ICs against inductive kickback from magnetic components during startup/shutdown. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across bulk capacitor input to suppress ringing and overshoot. Use Value: Withstands 40 A surge (8.3 ms half-sine) without degradation, ensuring robustness across 50,000+ thermal cycles in outdoor lighting fixtures. |
Use Scenario: Provides secondary-side overvoltage protection on -48 V telecom distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between -48 V rail and signal ground to clamp positive-going transients only. Use Value: Achieves 152 V clamping at 2.7 A, enabling coordination with upstream GDTs and downstream TVS arrays for staged protection architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A (Bourns) | Same DO-214AA (SMB) package; 110 V VWM, 122–135 V VBR, 177 V VC @ 2.3 A; 600 W rating. | Higher clamping voltage (+25 V) and larger footprint; better suited for higher-energy surges where board space allows SMB. | Select SMBJ110A when system-level surge testing requires >400 W margin or when using existing SMB footprints. |
| 1.5SMC110A (ON Semiconductor) | DO-214AB (SMC) package; 110 V VWM, 122–135 V VBR, 177 V VC @ 2.3 A; 1500 W rating. | Larger SMC package enables higher surge endurance but occupies ~2.5× PCB area; not drop-in compatible with SMA layout. | Choose 1.5SMC110A for high-reliability telecom or railway applications demanding multi-kW surge immunity and extended lifetime. |
Compared with SMBJ110A and 1.5SMC110A, the P4SMA110A delivers optimal balance of compact DO-214AC footprint, precise 94.0 V standoff, and verified ISO 7637-2 compliance - making it ideal for space-constrained automotive and industrial DC/DC designs where clamping voltage headroom is critical.
Availability
P4SMA110A is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC/DC converter inputs, LED driver power supplies, and telecom line card protection requiring stable component supply and full traceability.
Supply support for P4SMA110A 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, automotive, and consumer applications.
The P4SMA series was developed specifically for surface-mount transient suppression in space-constrained, high-reliability DC power systems - emphasizing low leakage, tight VBR tolerance, and standardized DO-214AC packaging for automated assembly.
FAQ
What is the maximum clamping voltage of the P4SMA110A under standard test conditions?
The P4SMA110A has a maximum clamping voltage (VC) of 152 V when subjected to a 10/1000 µs impulse current waveform at 2.7 A. This value is measured per ANSI/IEEE C62.35 and represents the peak voltage across the device during surge conduction - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings.
Is the P4SMA110A suitable for bidirectional transient protection?
No, the P4SMA110A is a unidirectional TVS diode and is not rated for bidirectional operation. For bidirectional protection, Taiwan Semiconductor offers the P4SMA110CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and is explicitly characterized for that configuration per the datasheet.
Does the P4SMA110A meet automotive-grade reliability standards?
Yes, the P4SMA110A meets ISO 7637-2 Pulse 1/2a/2b/3a/3b requirements for automotive electrical disturbances and is qualified to JESD201 Class 2 for whisker resistance. Its MSL Level 1 rating and –55 °C to +150 °C operating range align with AEC-Q200 stress test recommendations for passive components.
What is the reverse leakage current specification for the P4SMA110A at its working voltage?
The P4SMA110A specifies a maximum reverse leakage current (IR) of 1 µA when biased at its working stand-off voltage (VWM) of 94.0 V. This ultra-low leakage ensures minimal power loss in always-on circuits and avoids interference with high-impedance sensing nodes downstream of the protected rail.
Can the P4SMA110A be used in reflow soldering processes without preconditioning?
Yes, the P4SMA110A is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and does not require baking or dry-pack handling prior to standard lead-free reflow soldering. Its moisture-resistant molding compound and matte tin plating ensure compatibility with IPC-A-610 Class 2/3 assembly requirements.
P4SMA110A 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):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 2.7A
- 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)
P4SMA110A FAQ
1.How can I place an order for P4SMA110A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110A 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 P4SMA110A reliable?
The price and inventory of P4SMA110A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110A is usually 5 days.
3.What payment methods are accepted for P4SMA110A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110A?
P4SMA110A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110A 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 P4SMA110A?
For technical support, including P4SMA110A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110A requirements.
6.How does Aetrix verify that P4SMA110A is sourced from the original manufacturer or authorized distributors?
All P4SMA110A 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 P4SMA110A meets industry standards.
7.What is the process for return or replacement of P4SMA110A?
All P4SMA110A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110A, 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 P4SMA110A part is unused and in its original packaging.
Return procedure for P4SMA110A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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