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Taiwan Semiconductor Corporation P4SMA110CH
- Part No.:
- P4SMA110CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110CH.pdf
- Description:
- 400W, 110V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,371
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Product details
Overview
P4SMA110CH from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for automotive-grade overvoltage protection in DC power rails. 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 AEC-Q101 qualification for under-hood applications.
For engineers reviewing the P4SMA110CH datasheet, P4SMA110CH pinout, P4SMA110CH application, or P4SMA110CH equivalent, this device is selected for robust surge immunity in ISO 7637-2 Pulse 1/2a/2b/3a/3b-compliant automotive electronics, particularly where fast response (<1 ps), low leakage (<1 µA @ VWM), and DO-214AC package compatibility are required.
Technical Context
The P4SMA110CH uses a glass-passivated silicon junction to achieve stable avalanche breakdown behavior with ±5% VBR tolerance and a temperature coefficient of 0.107 %/°C. Its unidirectional configuration provides forward conduction capability (VF = 3.5 V @ 25 A) while suppressing reverse transients up to 400 W (10/1000 µs waveform).
It operates across –55 °C to +150 °C junction temperature range, meets JESD201 Class 2 whisker resistance, and is rated for moisture sensitivity level 1 per J-STD-020 - enabling standard reflow assembly without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1 mA | 99–121 V: Ensures reliable avalanche initiation above system nominal voltage with margin against false triggering |
| VWM | 89.2 V: Maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM = 2.6 A | 158 V: Clamped voltage during 10/1000 µs surge - defines protected circuit's maximum transient exposure |
| PPPM | 400 W: Peak pulse power handling capacity per single non-repetitive surge event |
| IR @ VWM | <1 µA: Minimal standby power loss and negligible loading on high-impedance sensing circuits |
| TJ max | +150 °C: Enables placement near heat sources in engine control units and power converters |
| Package | DO-214AC (SMA): Standardized SMD footprint compatible with automated pick-and-place and reflow |
Pinout & Package
DO-214AC (SMA) package: Cathode-banded end denotes terminal polarity; anode connects to PCB pad opposite band. Matte tin-plated leads ensure solderability per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VWM |
| Anode | Reference / return path | Typically tied to system ground or low-side reference; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use including thermal cycling, humidity, and mechanical shock stress |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under repeated surge conditions |
| Fast response time <1 ps | Clamps transients before sensitive downstream ICs experience damaging voltage overshoot |
| ISO 7637-2 compliance | Withstands standardized automotive load dump and inductive switching pulses without degradation |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives for environmentally compliant manufacturing |
Applications
| Automotive Engine Control Unit (ECU) | Industrial DC/DC Converter Input |
|---|---|
Use Scenario: Protecting microcontroller power supply inputs from alternator load dump and relay coil flyback in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and LDO input to limit transient excursions below 158 V. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V regulators and MCU I/Os during ISO 7637-2 Pulse 5a (load dump) events. | Use Scenario: Safeguarding primary-side MOSFET gate drivers and controller ICs in isolated 48 V-to-12 V industrial DC/DC modules. IC Role / Device Role / Timing Role: Front-end transient suppressor on input bus to absorb repetitive switching noise and ESD-induced spikes. Use Value: Maintains stable operation of PWM controllers by limiting voltage overshoot to ≤158 V during 10/1000 µs surges up to 2.6 A. |
| On-Board Charger (OBC) Auxiliary Supply | LED Driver Power Input Stage |
Use Scenario: Shielding auxiliary 12 V logic supply in EV on-board chargers from CAN bus coupling and high-voltage isolation barrier leakage. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 89.2 V) placed after DC-link filter to block transients before linear regulator stage. Use Value: Enables uninterrupted communication module operation by clamping coupled transients before they exceed 158 V at the regulator input. | Use Scenario: Protecting constant-current LED driver ICs from inductive kickback generated by magnetic dimming relays and hot-swap events. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; unidirectional P4SMA110CH applied with cathode to LED string anode to suppress positive-going surges only. Use Value: Extends LED driver lifetime by limiting transient-induced gate oxide stress on internal FETs during relay switching cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | 600 W rating, SMB package (larger footprint), same VWM/VC specs | Better suited for higher-energy surges; requires PCB layout change due to larger body and pitch | Select when system-level testing shows 400 W insufficient for worst-case ISO 7637-2 Pulse 5a repetition |
| 1.5SMC110A | 1500 W rating, SMC package (3.94 mm × 2.79 mm), higher VC = 177 V | Used in heavy-duty industrial power supplies where space allows larger package and higher clamping is acceptable | Choose when surge energy exceeds 400 W but board area permits SMC footprint and design tolerates 177 V clamping |
Compared with SMBJ110A and 1.5SMC110A, the P4SMA110CH offers optimal balance of compact DO-214AC size, AEC-Q101 qualification, and precise 158 V clamping - making it preferred for space-constrained automotive modules requiring certified reliability.
Availability
P4SMA110CH is available at Aetrix Electronics and suitable for automotive engine control units, industrial DC/DC converters, and on-board charger auxiliary supplies requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA110CH 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, serving global automotive, industrial, and consumer markets since 1979.
The P4SMA series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient immunity in harsh automotive environments - emphasizing low clamping ratio, fast response, and long-term parametric stability.
FAQ
What is the maximum clamping voltage of the P4SMA110CH under standard test conditions?
The P4SMA110CH has a maximum clamping voltage (VC) of 158 V when subjected to a 10/1000 µs surge waveform at 2.6 A peak pulse current. 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 ICs remain within absolute maximum ratings.
Is the P4SMA110CH suitable for bidirectional transient suppression?
No, the P4SMA110CH is a unidirectional TVS diode. For bidirectional protection, Taiwan Semiconductor specifies the P4SMA110AH variant (with "AH" suffix). The P4SMA110CH must be oriented with its cathode band toward the protected line and anode to ground to function correctly - reverse orientation will not provide clamping in the forward direction.
Does the P4SMA110CH meet automotive qualification standards?
Yes, the P4SMA110CH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. It is rated for operation from –55 °C to +150 °C, passes JESD201 Class 2 whisker testing, and carries moisture sensitivity level 1 - confirming suitability for automotive under-hood and powertrain applications.
What is the working stand-off voltage (VWM) of the P4SMA110CH, and why does it matter?
The P4SMA110CH has a working stand-off voltage (VWM) of 89.2 V. This is the maximum continuous DC or RMS voltage the device can withstand without exceeding 1 µA leakage current. Selecting a VWM ≥ 1.1× system nominal voltage ensures reliable operation without false triggering during normal operation - essential for 72–80 V battery systems in commercial vehicles.
Can the P4SMA110CH be used in automated SMT assembly processes?
Yes, the P4SMA110CH uses the DO-214AC (SMA) package with matte tin-plated leads compliant with J-STD-002 solderability requirements. Its moisture sensitivity level 1 rating eliminates bake requirements prior to reflow, and its standardized footprint supports high-speed pick-and-place placement - making it fully compatible with industrial SMT lines.
P4SMA110CH 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA110CH FAQ
1.How can I place an order for P4SMA110CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110CH 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 P4SMA110CH reliable?
The price and inventory of P4SMA110CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110CH is usually 5 days.
3.What payment methods are accepted for P4SMA110CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110CH?
P4SMA110CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110CH 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 P4SMA110CH?
For technical support, including P4SMA110CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110CH requirements.
6.How does Aetrix verify that P4SMA110CH is sourced from the original manufacturer or authorized distributors?
All P4SMA110CH 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 P4SMA110CH meets industry standards.
7.What is the process for return or replacement of P4SMA110CH?
All P4SMA110CH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110CH, 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 P4SMA110CH part is unused and in its original packaging.
Return procedure for P4SMA110CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110CH Tags
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