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Taiwan Semiconductor Corporation P4SMA11CH
- Part No.:
- P4SMA11CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA11CH.pdf
- Description:
- 400W, 11V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:2,898
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Product details
Overview
P4SMA11CH from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode with a working stand-off voltage of 8.92 V, breakdown voltage range 9.90–12.10 V at 1.0 mA test current, and clamping voltage of 16.2 V at 26 A peak pulse current. It protects DC power rails in automotive-grade SMPS and on-board DC/DC converters against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P4SMA11CH datasheet, P4SMA11CH pinout, P4SMA11CH application, or P4SMA11CH equivalent, this page delivers verified electrical specs, DO-214AC package details, AEC-Q101 qualification status, clamping performance under 10/1000 μs surge, and direct alternatives for automotive and industrial power rail protection.
Technical Context
The P4SMA11CH uses a glass-passivated silicon junction optimized for fast transient response (<1.0 ps), low leakage (<1 µA at 8.92 V), and stable clamping across -55°C to +150°C junction temperature. Its unidirectional configuration provides asymmetric protection with cathode-marked polarity and meets ISO 7637-2 immunity requirements for automotive electronics.
Designed for automated SMT placement, it features matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. The DO-214AC (SMA) package supports 40 A non-repetitive forward surge current and operates within UL 94V-0 rated molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.92 V - Maximum continuous reverse operating voltage before significant leakage begins; sets safe DC rail margin. |
| VBR min/max | 9.90–12.10 V @ 1.0 mA - Verified breakdown threshold ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 16.2 V @ 26 A (10/1000 μs) - Clamped voltage limits downstream IC stress during standardized surge pulses. |
| PPPM | 400 W - Peak pulse power rating defines maximum transient energy absorption capability. |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves efficiency in battery-backed or low-power systems. |
| TJ max | +150 °C - High junction temperature rating enables use in under-hood automotive environments. |
| Configuration | Unidirectional - Provides polarity-specific protection; cathode band denotes terminal orientation. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-die, cathode-banded unidirectional TVS diode. Weight: 0.060 g. Moisture sensitivity level: J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or return path; completes clamping loop during transient conduction. |
| Cathode | Protected line input | Marked with band; connects to DC rail being protected (e.g., 12 V supply); conducts surge current to ground when VIN exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and infotainment power supplies. |
| Glass passivated junction | Enhances long-term reliability and moisture resistance versus epoxy-passivated alternatives. |
| Fast response time <1.0 ps | Ensures clamping activation before sensitive downstream logic or analog circuitry sustains damage. |
| Meets ISO 7637-2 Pulse 1/2a/2b/3a/3b | Complies with automotive transient immunity standards for load dump, inductive switching, and battery disconnection events. |
| RoHS & halogen-free | Conforms to IEC 61249-2-21 and EU RoHS Directive for environmentally restricted substances. |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter Input Stage |
|---|---|
Use Scenario: Protects 12 V supply rail in BCM from load dump and alternator-induced surges per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS clamps transients above 9.9 V while maintaining <1 µA leakage at nominal 12 V operation. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers powered from the same rail. | Use Scenario: Shields primary-side controller ICs in isolated 48 V-to-12 V DC/DC converters from switching noise and cross-talk. IC Role / Device Role / Timing Role: Absorbs 400 W peak pulses without degradation, limiting voltage overshoot to ≤16.2 V during MOSFET turn-off events. Use Value: Eliminates need for oversized input capacitors or additional RC snubbers in space-constrained industrial power modules. |
| LED Driver Power Supply | USB-C PD Adapter Secondary Side |
Use Scenario: Guards constant-current LED driver ICs against ESD and line transients during hot-plug or dimming transitions. IC Role / Device Role / Timing Role: Responds in <1.0 ps to clamp fast-rising spikes induced by inductive LED strings or PWM switching. Use Value: Maintains consistent luminance output and extends driver IC lifetime in outdoor lighting fixtures exposed to lightning-induced surges. | Use Scenario: Safeguards secondary-side synchronous rectifier controllers and voltage monitors in compact USB-C PD adapters. IC Role / Device Role / Timing Role: Operates at 8.92 V stand-off to avoid false triggering during 9 V–20 V PD negotiation, while clamping 16.2 V surges. Use Value: Enables compliance with IEC/EN 62368-1 surge immunity requirements without sacrificing adapter size or efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | 600 W rating, DO-214AA package, 11 V nominal VBR, higher IPPM (33.5 A) | Better suited for higher-energy transients; larger footprint may limit layout flexibility | Select SMBJ11A when system-level testing requires >400 W surge margin or legacy board designs use DO-214AA pads |
| 1.5SMC11A | 1500 W rating, DO-214AB package, same VBR range, VF = 3.5 V | Designed for high-current industrial surge suppression; not AEC-Q101 qualified | Choose 1.5SMC11A only for non-automotive applications requiring extreme pulse robustness and thermal mass |
Compared with SMBJ11A and 1.5SMC11A, the P4SMA11CH offers optimal balance of AEC-Q101 compliance, DO-214AC compactness, and precise 8.92 V stand-off for 12 V automotive rails-making it preferred for new designs targeting IPC Class 3 reliability and space-constrained layouts.
Availability
P4SMA11CH is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC/DC converters, and LED driver power supplies requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA11CH 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 automotive, industrial, and consumer markets.
The P4SMA series belongs to TSC's AEC-Q101-qualified surface-mount TVS portfolio, engineered specifically for robust transient immunity in automotive power distribution networks and industrial power conversion stages.
FAQ
What is the clamping voltage of the P4SMA11CH under standard 10/1000 μs surge conditions?
The P4SMA11CH has a maximum clamping voltage (VC) of 16.2 V at 26 A peak pulse current using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 16.2 V during standardized surge events, making it suitable for protecting 12 V automotive electronics without over-clamping.
Is the P4SMA11CH certified for automotive applications?
Yes, the P4SMA11CH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b requirements. Its glass-passivated junction, -55°C to +150°C operating range, and J-STD-020 Level 1 moisture sensitivity rating confirm suitability for under-hood and body electronics applications where reliability under thermal and mechanical stress is critical.
What does the "CH" suffix indicate in P4SMA11CH?
The "CH" suffix in P4SMA11CH denotes a unidirectional TVS diode in the P4SMA family with standard breakdown tolerance (±10% for 11 V grade) and DO-214AC (SMA) packaging. It distinguishes the part from bidirectional variants (e.g., P4SMA11CAH) and confirms cathode-band polarity marking for correct PCB orientation during assembly.
Can the P4SMA11CH be used in place of a P4SMA11AH?
No-the P4SMA11CH and P4SMA11AH differ in breakdown voltage tolerance: P4SMA11CH has VBR = 9.90–12.10 V (±10%), while P4SMA11AH specifies 10.50–11.60 V (±5%). Substituting them risks insufficient clamping margin or premature conduction. Always verify VBR and VWM match system requirements before replacement.
What is the maximum reverse leakage current for the P4SMA11CH at its working voltage?
The P4SMA11CH exhibits a maximum reverse leakage current (IR) of 1 µA at its working stand-off voltage (VWM) of 8.92 V. This ultra-low leakage minimizes standby power loss and prevents unintended biasing in high-impedance sensing circuits or battery-powered systems where quiescent current must remain below 1 µA.
P4SMA11CH 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):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 26A
- 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)
P4SMA11CH FAQ
1.How can I place an order for P4SMA11CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA11CH 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 P4SMA11CH reliable?
The price and inventory of P4SMA11CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA11CH is usually 5 days.
3.What payment methods are accepted for P4SMA11CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA11CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA11CH?
P4SMA11CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA11CH 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 P4SMA11CH?
For technical support, including P4SMA11CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA11CH requirements.
6.How does Aetrix verify that P4SMA11CH is sourced from the original manufacturer or authorized distributors?
All P4SMA11CH 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 P4SMA11CH meets industry standards.
7.What is the process for return or replacement of P4SMA11CH?
All P4SMA11CH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA11CH, 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 P4SMA11CH part is unused and in its original packaging.
Return procedure for P4SMA11CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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