Taiwan Semiconductor Corporation P4SMA110C
- Part No.:
- P4SMA110C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110C.pdf
- Description:
- 400W, 110V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:

- Shipping:

Inventory:4,311
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Product details
Overview
P4SMA110C from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 99–121 V breakdown voltage (VBR), 89.2 V working stand-off voltage (VWM), 158 V maximum clamping voltage (VC) at 2.6 A peak pulse current, and 400 W peak pulse power rating under 10/1000 µs waveform - deployed in automotive infotainment power supplies and industrial I/O interfaces.
For engineers reviewing the P4SMA110C datasheet, P4SMA110C pinout, P4SMA110C application, or P4SMA110C equivalent, key selection criteria include bidirectional clamping symmetry, low leakage (<1 µA at VWM), ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, DO-214AC package compatibility, and thermal stability up to +150 °C junction temperature.
Technical Context
The P4SMA110C implements a glass-passivated silicon junction optimized for fast transient suppression with sub-1 ps response time. Its bidirectional configuration enables symmetrical clamping in both polarities without external polarity management, supporting unidirectional or bidirectional signal/power line protection without circuit redesign.
It operates across –55 °C to +150 °C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - enabling reflow-compatible automated assembly in high-reliability power conversion and automotive control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 99 V / 121 V at 1.0 mA test current - defines reliable conduction onset window for overvoltage detection |
| VWM | 89.2 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 158 V at 2.6 A (10/1000 µs) - peak clamped voltage limiting stress on downstream ICs |
| PPPM | 400 W - surge energy handling capacity per single transient event |
| IR @ VWM | <1 µA - ensures negligible standby power loss and signal integrity in high-impedance circuits |
| TJ max | +150 °C - supports operation in under-hood automotive and enclosed industrial environments |
| Package | DO-214AC (SMA) - industry-standard SMT footprint with 0.060 g mass and UL 94V-0 molding compound |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking for unidirectional variants; P4SMA110C is bidirectional and marked with "CYJ" code - terminals are non-polarized, symmetric, and functionally interchangeable as anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Transient current entry (negative polarity) | Accepts reverse surge during negative transients; clamps to VC when voltage exceeds –VBR |
| Cathode (K) | Transient current entry (positive polarity) | Accepts reverse surge during positive transients; clamps to VC when voltage exceeds +VBR |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and leakage specs in both directions - eliminates need for polarity-aware layout or discrete dual-diode solutions |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) - suitable for 12 V/24 V automotive ECUs |
| Glass passivated junction | Enhanced reliability vs. epoxy-passivated alternatives - stable VBR drift <0.107 %/°C and reduced parameter shift after thermal cycling |
| Fast response time | <1.0 ps - initiates clamping before most microsecond-scale transients fully develop, protecting sensitive analog and digital inputs |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement prior to reflow - simplifies SMT line logistics and reduces handling overhead |
Applications
| Automotive Infotainment Power Rail | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting 12 V supply input of head unit MCU and audio codec from load-dump spikes and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC/DC converter and LDO regulators. Use Value: Limits transient voltage to ≤158 V while sustaining 400 W surge - prevents latch-up and gate oxide damage in downstream PMICs. | Use Scenario: Safeguarding 24 V digital input channels against field-wiring ESD and inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Bidirectional interface protector between terminal block and optocoupler input stage. Use Value: Symmetric clamping ensures equal protection for both logic-high and logic-low signal states without polarity-dependent design constraints. |
| LED Driver Output Stage | Telecom DC Power Feeder |
Use Scenario: Suppressing flyback voltage spikes generated by constant-current LED string switching in streetlight drivers. IC Role / Device Role / Timing Role: Parallel-connected TVS across output terminals to absorb inductive energy during MOSFET turn-off. Use Value: 158 V clamping voltage aligns with 100–120 V LED string open-circuit ratings - avoids false triggering while ensuring safe margin. | Use Scenario: Hardening -48 V telecom power feeders against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: First-line transient suppressor at power entry point before DC/DC isolation stage. Use Value: 400 W peak power rating handles multiple 10/1000 µs surges per IEC 61000-4-5 Level 4 - maintains uptime in central office equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA (Bourns) | Same DO-214AA package; 110 V nominal VBR, 187 V VC @ 2.1 A; 600 W PPPM | Higher clamping voltage requires larger safety margin for downstream 150 V-rated components | Select when higher surge energy tolerance is prioritized over tighter clamping voltage |
| 1.5SMC110CA (ON Semiconductor) | DO-214AB package; identical VBR/VC specs but 1.5 kW PPPM; larger footprint and 0.33 g mass | Not drop-in compatible due to 7.11 mm × 6.22 mm body vs. P4SMA110C's 4.57 mm × 2.79 mm DO-214AC | Choose when system-level surge testing exceeds 400 W and board space allows larger SMC outline |
Compared with SMBJ110CA and 1.5SMC110CA, the P4SMA110C delivers optimal balance of compact DO-214AC footprint, low 158 V clamping, and ISO 7637-2 validation - making it preferred for space-constrained automotive and industrial modules where precise voltage limiting is critical.
Availability
P4SMA110C is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC input protection, and LED driver output stages requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA110C 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 - headquartered in Hsinchu, Taiwan, with ISO 9001 and IATF 16949 certified operations.
The P4SMA series is part of TSC's high-reliability transient suppression portfolio engineered for automotive-grade robustness, AEC-Q101 alignment, and seamless integration into automated SMT lines - targeting cost-sensitive yet mission-critical power protection applications.
FAQ
What is the polarity configuration of P4SMA110C?
The P4SMA110C is a bidirectional TVS diode, meaning it provides symmetrical clamping in both positive and negative voltage directions. Its marking code "CYJ" and "C" suffix confirm bidirectional functionality - no anode/cathode orientation is required during placement, simplifying PCB layout and eliminating polarity-related assembly errors in the P4SMA110C implementation.
Does P4SMA110C meet automotive EMC standards?
Yes, the P4SMA110C meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (supply interruption and switching transients), and Pulse 3a/3b (capacitive coupling). This certification validates its suitability for 12 V and 24 V automotive subsystems, including body control modules and infotainment power supplies where the P4SMA110C serves as primary transient suppression.
What is the maximum clamping voltage of P4SMA110C under standard test conditions?
The maximum clamping voltage (VC) of P4SMA110C is 158 V when subjected to a 10/1000 µs waveform peak pulse current of 2.6 A. This value is measured per ANSI/IEEE C62.35 and represents the upper voltage limit imposed on protected circuitry during transient events - a key parameter for ensuring downstream ICs rated to 150–175 V remain within safe operating limits using the P4SMA110C.
Can P4SMA110C be used in place of unidirectional P4SMA110A?
No - the P4SMA110C and P4SMA110A are not interchangeable. The "C" suffix denotes bidirectional operation with symmetrical electrical characteristics, while the "A" suffix indicates unidirectional behavior with a defined cathode band. Substituting P4SMA110C for P4SMA110A would remove polarity control and may compromise protection in circuits relying on directional blocking, so design validation is required before any P4SMA110C replacement.
What is the moisture sensitivity level (MSL) rating for P4SMA110C?
The P4SMA110C has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it has unlimited floor life and does not require dry-packaging or baking prior to reflow soldering. This simplifies manufacturing logistics and supports high-yield, lead-free reflow profiles - a verified characteristic of the P4SMA110C that reduces process risk in high-volume SMT assembly.
P4SMA110C 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):
- 89.2V
- Voltage - Breakdown (Min):
- 99V
- Voltage - Clamping (Max) @ Ipp:
- 158V
- Current - Peak Pulse (10/1000µs):
- 2.6A
- 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)
P4SMA110C FAQ
1.How can I place an order for P4SMA110C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110C 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 P4SMA110C reliable?
The price and inventory of P4SMA110C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110C is usually 5 days.
3.What payment methods are accepted for P4SMA110C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110C?
P4SMA110C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110C 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 P4SMA110C?
For technical support, including P4SMA110C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110C requirements.
6.How does Aetrix verify that P4SMA110C is sourced from the original manufacturer or authorized distributors?
All P4SMA110C 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 P4SMA110C meets industry standards.
7.What is the process for return or replacement of P4SMA110C?
All P4SMA110C units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110C, 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 P4SMA110C part is unused and in its original packaging.
Return procedure for P4SMA110C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110C Tags

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