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Taiwan Semiconductor Corporation P4SMA150AH
- Part No.:
- P4SMA150AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150AH.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,963
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Product details
Overview
P4SMA150AH from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, with 143–158 V breakdown voltage (VBR), 128 V working stand-off voltage (VWM), and 207 V maximum clamping voltage (VC) at 2.0 A peak impulse current under 10/1000 µs waveform. It delivers fast response (<1.0 ps), low leakage (<1 µA @ VWM), and AEC-Q101 qualification for automotive power rail protection.
For engineers reviewing the P4SMA150AH datasheet, P4SMA150AH pinout, P4SMA150AH application, or P4SMA150AH equivalent, this device is selected for robust overvoltage suppression in DC/DC converters, SMPS front-ends, and automotive electronics where precise clamping, high surge immunity, and automotive-grade reliability are required.
Technical Context
The P4SMA150AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified VBR range (143–158 V @ 1.0 mA). Its glass-passivated junction ensures stable breakdown characteristics and low leakage across -55°C to +150°C operating junction temperature.
It complies with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive transient immunity and uses a DO-214AC (SMA) package with matte tin-plated leads meeting J-STD-002 solderability and JESD 201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT | 143–158 V @ 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 128 V - maximum continuous reverse voltage before leakage rises significantly; sets safe operating margin below VBR |
| VC @ IPPM | 207 V @ 2.0 A (10/1000 µs) - clamping voltage during surge; determines protected circuit's peak stress level |
| PPPM | 400 W - peak pulse power handling capacity; enables survival of high-energy transients per ISO 7637-2 |
| IR @ VWM | <1 µA - ultra-low reverse leakage ensures minimal standby power loss and signal integrity in high-impedance nodes |
| TJ max | +150 °C - extended junction temperature rating supports operation in under-hood automotive environments |
| Package | DO-214AC (SMA) - industry-standard SMD outline enabling automated placement and IPC-compliant reflow assembly |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; dual-terminal configuration (anode and cathode) optimized for PCB-level transient suppression on DC power lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 12 V or 24 V rail); conducts during overvoltage to clamp to VC |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift under thermal cycling and humidity exposure |
| Clamping ratio (VC/VBR) | ~1.45 - tight ratio minimizes overvoltage overshoot during fast transients while maintaining margin to system max rating |
| Moisture sensitivity level | MSL Level 1 (per J-STD-020) - allows unlimited floor life and standard reflow without baking preconditioning |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
Applications
| Automotive Power Rail Protection | On-Board DC/DC Converter Input |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 12 V/24 V battery-fed circuits in vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges within 1.0 ps. Use Value: Limits peak voltage to 207 V, protecting downstream regulators and microcontrollers rated for ≤25 V absolute max input. | Use Scenario: Protecting primary-side MOSFETs and controller ICs in isolated flyback or buck-boost DC/DC modules. IC Role / Device Role / Timing Role: Fast-acting clamping device absorbing energy from inductive kickback and ESD events on input bus. Use Value: Withstands 400 W peak pulses and maintains <1 µA leakage at 128 V, preserving efficiency and stability in 200 kHz+ switching designs. |
| Switching Mode Power Supply (SMPS) Input Stage | Industrial Lighting Driver Input |
Use Scenario: Safeguarding AC-DC front-end rectifiers and PFC controllers against line surges and lightning-induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across bulk capacitor input to limit transient overvoltage before filtering stage. Use Value: 128 V VWM provides 10% margin above nominal 115 VRMS rectified input; 207 V VC prevents secondary-side component overstress. | Use Scenario: Shielding LED driver ICs and MOSFETs in streetlight or high-bay fixtures exposed to grid fluctuations and EMI. IC Role / Device Role / Timing Role: Primary-line TVS suppressing repetitive switching noise and infrequent high-energy surges on 24–48 V DC bus. Use Value: AEC-Q101 qualification and MSL Level 1 ensure reliability in outdoor enclosures with wide ambient temperature swings (-40°C to +85°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Same VWM (128 V), but higher VC (243 V) and larger SMB package (DO-214AA) | Lower power density; less suitable for space-constrained automotive modules | Select P4SMA150AH for tighter board layouts requiring SMA footprint and lower clamping voltage. |
| 1.5SMC150A | Same VBR/VWM specs, but higher PPPM (1500 W) and larger SMC package (DO-214AB) | Over-specified for 400 W needs; adds cost and area without benefit in typical DC/DC use cases | Choose P4SMA150AH when 400 W surge rating suffices and DO-214AC compatibility is required for existing SMA land patterns. |
Compared with SMBJ150A and 1.5SMC150A, the P4SMA150AH offers optimal balance of clamping performance (207 V), compact DO-214AC packaging, and automotive qualification-making it preferred for space-limited, high-reliability 12–24 V systems where precise voltage limiting and automated assembly are critical.
Availability
P4SMA150AH is available at Aetrix Electronics and suitable for automotive electronics, on-board DC/DC converters, and industrial lighting applications requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for P4SMA150AH 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, and rectifiers with global distribution and AEC-Q101 validation capability.
The P4SMA150AH belongs to TSC's P4SMAx(A)H series-a family of 400 W surface-mount TVS diodes engineered for automotive-grade transient suppression in harsh-environment power systems.
FAQ
What is the breakdown voltage range of the P4SMA150AH?
The P4SMA150AH has a guaranteed breakdown voltage (VBR) range of 143 V to 158 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent avalanche triggering across production lots and supports reliable overvoltage protection design margins in 12 V and 24 V automotive systems where the P4SMA150AH is commonly deployed.
Is the P4SMA150AH suitable for bidirectional transient suppression?
No, the P4SMA150AH is a unidirectional TVS diode intended for single-polarity clamping. For bidirectional applications, Taiwan Semiconductor specifies parts with "CH" or "CAH" suffixes (e.g., P4SMA150CH). Using the P4SMA150AH in reverse-biased configurations outside its rated parameters may result in unreliable clamping or device failure.
What is the maximum clamping voltage of the P4SMA150AH under standard surge conditions?
The P4SMA150AH exhibits a maximum clamping voltage (VC) of 207 V when subjected to a 10/1000 µs surge waveform at 2.0 A peak impulse current. This value is verified per JEDEC test methods and defines the upper voltage limit imposed on protected circuitry during transient events, making the P4SMA150AH appropriate for safeguarding components rated up to 220 V DC.
Does the P4SMA150AH meet automotive qualification standards?
Yes, the P4SMA150AH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. Its construction-including glass-passivated junction, MSL Level 1 moisture resistance, and JESD 201 Class 2 whisker resistance-supports deployment in engine control, body electronics, and ADAS modules where the P4SMA150AH serves as primary overvoltage defense.
What package type does the P4SMA150AH use, and is it compatible with standard SMT processes?
The P4SMA150AH uses the DO-214AC (SMA) surface-mount package with matte tin-plated leads compliant with J-STD-002 solderability. Its dimensions and thermal profile support standard reflow soldering (IPC-J-STD-020), and the MSL Level 1 rating permits unlimited floor life-enabling seamless integration into high-volume automated assembly lines where the P4SMA150AH is routinely placed.
P4SMA150AH 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2A
- 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)
P4SMA150AH FAQ
1.How can I place an order for P4SMA150AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150AH 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 P4SMA150AH reliable?
The price and inventory of P4SMA150AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150AH is usually 5 days.
3.What payment methods are accepted for P4SMA150AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150AH?
P4SMA150AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150AH 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 P4SMA150AH?
For technical support, including P4SMA150AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150AH requirements.
6.How does Aetrix verify that P4SMA150AH is sourced from the original manufacturer or authorized distributors?
All P4SMA150AH 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 P4SMA150AH meets industry standards.
7.What is the process for return or replacement of P4SMA150AH?
All P4SMA150AH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150AH, 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 P4SMA150AH part is unused and in its original packaging.
Return procedure for P4SMA150AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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