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Vishay General Semiconductor - Diodes Division P4SMA150AHM3_A/I
- Part No.:
- P4SMA150AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150AHM3_A/I.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,600
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Product details
Overview
P4SMA150AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 150 V standoff voltage (VWM), 143–158 V breakdown voltage (VBR at 1 mA), and 207 V clamping voltage (VC) at 1.4 A peak pulse current under 10/1000 µs waveform. It delivers 400 W peak pulse power, supports automotive-grade reliability per AEC-Q101, and protects MOSFETs and sensor signal lines in industrial power supplies.
For engineers reviewing the P4SMA150AHM3_A/I datasheet, P4SMA150AHM3_A/I pinout, P4SMA150AHM3_A/I application, or P4SMA150AHM3_A/I equivalent, this page provides verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, AEC-Q101 qualification status, and direct alternatives with documented VBR, VC, and IPPM differences.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging glass-passivated junction technology for stable avalanche response. Its 120 °C/W junction-to-ambient thermal resistance and 30 °C/W junction-to-lead resistance define its transient power handling on standard 5.0 mm × 5.0 mm copper pads.
It meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and is halogen-free and RoHS-compliant under HM3 suffix designation. The "_A/I" ordering code indicates 7500-unit tape-and-reel packaging on 13″ reels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for normal circuit operation. |
| VBR (min/max) | 143 V / 158 V at 1 mA - Confirmed breakdown range ensures predictable turn-on during transients without premature clamping. |
| VC @ IPPM | 207 V at 1.4 A - Clamping voltage under 10/1000 µs surge defines maximum stress imposed on protected downstream ICs. |
| PPPM | 400 W - Peak pulse power rating determines survivability against lightning-induced or inductive-switching surges. |
| IFSM | 40 A - Single half-sine 8.3 ms forward surge rating validates robustness during power-rail fault events. |
| TJ max | +150 °C - Maximum junction temperature enables use in under-hood automotive and high-ambient industrial environments. |
| RθJA | 120 °C/W - Thermal resistance governs steady-state power dissipation limits and PCB pad layout requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with UL 94 V-0 flammability rating; cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to ground or lower-potential rail in unidirectional protection configuration. |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to protected line (e.g., 12 V rail or sensor input); conducts during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for global industrial and automotive production programs. |
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity testing without degradation. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin. |
| MSL Level 1, 260 °C peak reflow | Enables compatibility with standard lead-free SMT assembly processes without moisture sensitivity concerns. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 128 V. Use Value: Limits voltage seen by downstream PMICs and microcontrollers to ≤207 V, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog outputs of pressure or temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting ESD and switching noise on 0–5 V or 4–20 mA signal paths. Use Value: Maintains signal integrity with <1 nA leakage at 128 V, avoiding DC offset errors in precision measurement circuits. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
Use Scenario: Securing -48 V telecom rectifier outputs against induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Reverse-biased unidirectional TVS referenced to system ground, absorbing negative-going transients. Use Value: Withstands repetitive 400 W pulses at 0.01 % duty cycle, enabling reliable field deployment in central office equipment. |
Use Scenario: Preventing overvoltage damage to USB-C PD controllers during adapter plug-in/out events. IC Role / Device Role / Timing Role: Clamp device placed across secondary-side 20 V output, triggered only during fault conditions. Use Value: Fast response time and low VC/VBR ratio (1.45×) ensure protected SoCs remain within absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Same VWM (128 V), higher VC (243 V), larger SMB package (DO-214AA), 600 W PPPM | Requires larger PCB footprint; better suited for higher-energy surges where space permits. | Select when higher surge margin is needed and board area allows SMB footprint. |
| 1.5SMC150A | Same VWM (128 V), identical VC (207 V), larger SMC package (DO-214AB), 1500 W PPPM | Designed for high-power industrial motor drives; not optimized for automated placement density. | Choose for legacy designs using SMC or where 1500 W single-pulse capability is mandatory. |
Compared with P4SMA150AHM3_A/I, SMBJ150A offers greater surge energy handling but increases board area and clamping voltage, while 1.5SMC150A trades miniaturization for extreme pulse robustness-making P4SMA150AHM3_A/I optimal for space-constrained AEC-Q101-compliant designs requiring precise 207 V clamping.
Availability
P4SMA150AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA150AHM3_A/I 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P4SMA Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and telecom systems, delivering standardized TVS performance in compact surface-mount packages with AEC-Q101 and RoHS compliance built-in.
FAQ
What is the clamping voltage of the P4SMA150AHM3_A/I under a 10/1000 µs surge?
The P4SMA150AHM3_A/I has a maximum clamping voltage (VC) of 207 V at 1.4 A peak pulse current under the standardized 10/1000 µs waveform. This value is measured per Figure 1 and Table on page 2 of Vishay document 88367, and defines the upper voltage limit imposed on protected circuitry during surge events. The P4SMA150AHM3_A/I maintains this clamping performance across its qualified temperature range of –65 °C to +150 °C.
Is the P4SMA150AHM3_A/I qualified for automotive applications?
Yes, the P4SMA150AHM3_A/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix and footnote (1) on page 3 of Vishay document 88367. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating its use in automotive powertrain, body electronics, and ADAS subsystems. The P4SMA150AHM3_A/I also meets MSL Level 1 and JEDEC J-STD-020 reflow standards.
What does the "_A/I" suffix mean in P4SMA150AHM3_A/I?
The "_A/I" suffix in P4SMA150AHM3_A/I specifies two attributes: "A" denotes AEC-Q101 qualification for the 6.8 V to 220 V voltage range, and "I" indicates packaging in 7500-unit tape-and-reel format on 13″ diameter reels. This matches the ordering information table on page 3 of Vishay document 88367, where "I" is explicitly defined as the base quantity code for 13″ reels.
How does the thermal resistance of the P4SMA150AHM3_A/I affect PCB layout?
The P4SMA150AHM3_A/I has a typical RθJA of 120 °C/W, meaning junction temperature rises 120 °C per watt dissipated without heatsinking. To maintain safe operation, Vishay specifies mounting on 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pads per terminal-this layout is required to achieve the rated 400 W peak pulse power. Reducing pad size degrades thermal performance and reduces surge survivability. The P4SMA150AHM3_A/I's RθJL of 30 °C/W further emphasizes the need for short, wide traces to leads.
What is the maximum reverse leakage current of the P4SMA150AHM3_A/I at its standoff voltage?
The P4SMA150AHM3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated standoff voltage (VWM) of 128 V, as specified in the Electrical Characteristics table on page 2 of Vishay document 88367. This ultra-low leakage ensures minimal power loss and no measurable impact on high-impedance sensor bias networks or battery-powered standby circuits. The P4SMA150AHM3_A/I maintains this specification at TA = 25 °C and is derated per thermal curves in Figure 2.
P4SMA150AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- 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):
- 1.4A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA150AHM3_A/I FAQ
1.How can I place an order for P4SMA150AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150AHM3_A/I 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 P4SMA150AHM3_A/I reliable?
The price and inventory of P4SMA150AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA150AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150AHM3_A/I?
P4SMA150AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150AHM3_A/I 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 P4SMA150AHM3_A/I?
For technical support, including P4SMA150AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150AHM3_A/I requirements.
6.How does Aetrix verify that P4SMA150AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA150AHM3_A/I 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 P4SMA150AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA150AHM3_A/I?
All P4SMA150AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150AHM3_A/I, 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 P4SMA150AHM3_A/I part is unused and in its original packaging.
Return procedure for P4SMA150AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA150AHM3_A/I Tags
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