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Vishay General Semiconductor - Diodes Division P4SMA150AHE3/5A
- Part No.:
- P4SMA150AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150AHE3/5A.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA150AHE3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 150 V standoff voltage (VWM), 143–158 V breakdown voltage (VBR) at 1 mA, 207 V maximum clamping voltage at 1.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive-grade power supply inputs and industrial sensor interfaces.
For engineers reviewing the P4SMA150AHE3/5A datasheet, P4SMA150AHE3/5A pinout, P4SMA150AHE3/5A application, or P4SMA150AHE3/5A equivalent, key selection criteria include its AEC-Q101 qualification, SMA (DO-214AC) package compatibility, low incremental surge resistance, and verified clamping performance under repetitive transients in harsh environments.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve fast response (<1 ns) and stable breakdown behavior. Its thermal resistance (RθJA = 120 °C/W) and junction temperature limit (TJ = 150 °C) support reliable operation on standard PCB copper pads without forced cooling.
The device complies with MSL level 1 per J-STD-020 and withstands 260 °C lead-free reflow. Its 1.0 µA max reverse leakage at VWM and +0.108 %/°C VBR temperature coefficient ensure predictable threshold stability across automotive (-40 to +125 °C ambient) and industrial operating ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 128 V - Maximum continuous reverse working voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 143–158 V at 1 mA - Confirmed avalanche onset range; ensures consistent triggering across production lots and temperature. |
| VC (Clamping Voltage) | 207 V at IPPM = 1.4 A (10/1000 µs) - Peak voltage seen by protected circuit during transient; directly limits stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability under standardized surge waveform; enables protection against IEC 61000-4-5 Level 3 surges. |
| IFSM (Surge Current) | 40 A (8.3 ms half-sine) - Withstands short-duration line faults without degradation; supports input-stage protection in DC power supplies. |
| TJ max | 150 °C - Maximum junction temperature; allows operation in under-hood automotive and high-ambient industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports PPAP documentation. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or lower-potential rail in unidirectional TVS configuration. | Provides low-impedance path to ground during reverse-transient clamping; must be routed with minimal inductance for effective suppression. |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 12 V rail, CAN_H, RS-485 A). | Defines polarity-sensitive placement; band marking ensures correct orientation during automated assembly and prevents misapplication. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables single-device protection against high-energy transients like load dump (ISO 7637-2 Pulse 5a) without cascaded staging. |
| AEC-Q101 qualified (HE3 suffix) | Validated reliability for automotive ECUs, body control modules, and ADAS power domains - eliminates need for additional qualification testing. |
| Glass passivated junction | Ensures long-term parameter stability and low leakage drift under thermal cycling and humidity exposure. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT processes without pre-baking or special handling; compatible with high-volume manufacturing. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage overshoot during clamping; critical for protecting 150 V-rated MOSFETs and wide-VDS GaN drivers. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V/24 V battery-fed ECU power input subjected to ISO 7637-2 load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Limits peak voltage to ≤207 V during 1.4 A transient, preventing damage to 36 V-input buck controllers and ensuring system-level EMC compliance. |
Use Scenario: RS-485 communication lines in factory automation PLCs exposed to EFT and lightning-induced surges. IC Role / Device Role / Timing Role: TVS mounted differential-mode across A/B lines and common-mode to ground to suppress common- and differential-mode transients. Use Value: Clamps induced spikes within nanoseconds while maintaining <1 pF junction capacitance - preserving signal integrity up to 10 Mbps. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
|
Use Scenario: -48 V DC power distribution in telecom base station cabinets with frequent hot-swap events and lightning coupling. IC Role / Device Role / Timing Role: Unidirectional TVS on each feed line to protect upstream rectifiers and downstream PoE injectors from reverse-polarity and surge events. Use Value: Withstands 40 A 8.3 ms surge and maintains VWM ≥128 V - enabling robust hold-up during brownouts and fault clearing. |
Use Scenario: Brushed DC motor H-bridge inputs in smart home appliances experiencing commutation spikes and ESD from user interface panels. IC Role / Device Role / Timing Role: TVS placed across motor terminals and at gate-driver supply pins to absorb inductive kickback and contact discharge. Use Value: 207 V clamping voltage protects 250 V-rated MOSFETs; AEC-Q101 qualification ensures longevity in thermally cycled appliance enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/52 | Same VWM (128 V), higher VC (243 V), larger SMB (DO-214AA) package, 600 W PPPM rating. | Better suited for higher-energy surges but requires larger board area; not drop-in due to different pad layout and thermal profile. | Select when surge energy exceeds 400 W and PCB space permits larger footprint; verify thermal derating on 0.2" x 0.2" pads. |
| 1.5SMC150AHE3/A | Same VWM and VBR range, identical AEC-Q101 qualification, but SMC (DO-214AB) package with higher RθJA (100 °C/W) and 1500 W PPPM. | Higher power handling but slower response due to larger junction; less suitable for fast-edge ESD where low capacitance matters. | Prefer for high-repetition-rate surges in engine control units; avoid in high-speed data lines due to higher junction capacitance (~100 pF). |
Compared with SMBJ150A-E3/52 and 1.5SMC150AHE3/A, P4SMA150AHE3/5A delivers optimal balance of compact SMA footprint, certified automotive reliability, and precise clamping for mid-energy transients - making it ideal for space-constrained, thermally managed designs where 400 W surge capacity suffices.
Availability
P4SMA150AHE3/5A is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial RS-485 node protection, and telecom DC feed protection requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant packaging.
Supply support for P4SMA150AHE3/5A 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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P4SMA Series targets cost-sensitive yet mission-critical protection needs in automotive, industrial, and telecom systems - delivering AEC-Q101-qualified TVS performance in the smallest possible surface-mount package.
FAQ
What is the clamping voltage of P4SMA150AHE3/5A under a 10/1000 µs surge?
The P4SMA150AHE3/5A exhibits a maximum clamping voltage (VC) of 207 V when subjected to a 1.4 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88367, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during transient events. Engineers use this parameter to verify margin against downstream component voltage ratings.
Is P4SMA150AHE3/5A qualified for automotive applications?
Yes, P4SMA150AHE3/5A is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code and explicitly stated in the Vishay P4SMA Series datasheet. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, making P4SMA150AHE3/5A suitable for under-hood and cabin ECU applications where reliability under thermal and mechanical stress is mandatory.
What does the "/5A" suffix indicate in P4SMA150AHE3/5A?
The "/5A" suffix in P4SMA150AHE3/5A denotes the packaging configuration: 13-inch diameter plastic tape and reel containing 7500 units. This differs from "/61", which indicates a 7-inch reel with 1800 units. The "/5A" format supports high-volume SMT assembly and is commonly used in automotive and industrial production lines requiring extended reel life and reduced changeover frequency.
How does the thermal resistance of P4SMA150AHE3/5A affect PCB layout?
P4SMA150AHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under repeated surges, designers must allocate adequate copper area and avoid narrow traces. Reducing pad size or omitting thermal vias increases RθJA, risking thermal runaway during high-duty-cycle transients - a key consideration in P4SMA150AHE3/5A layout validation.
Can P4SMA150AHE3/5A be used in bidirectional configurations?
No, P4SMA150AHE3/5A is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and cathode band marking. Bidirectional variants such as P4SMA150CAHE3/5A exist in the same family but feature symmetric breakdown in both polarities. Using P4SMA150AHE3/5A in bidirectional circuits risks failure during positive-going transients on the anode side - always match device polarity to circuit topology when specifying P4SMA150AHE3/5A.
P4SMA150AHE3/5A 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:
- Discontinued at Digi-Key
- 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:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA150AHE3/5A FAQ
1.How can I place an order for P4SMA150AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150AHE3/5A 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 P4SMA150AHE3/5A reliable?
The price and inventory of P4SMA150AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150AHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA150AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150AHE3/5A?
P4SMA150AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150AHE3/5A 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 P4SMA150AHE3/5A?
For technical support, including P4SMA150AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150AHE3/5A requirements.
6.How does Aetrix verify that P4SMA150AHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA150AHE3/5A 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 P4SMA150AHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA150AHE3/5A?
All P4SMA150AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150AHE3/5A, 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 P4SMA150AHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA150AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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