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Vishay General Semiconductor - Diodes Division P4SMA150A-E3/5A
- Part No.:
- P4SMA150A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150A-E3/5A.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,114
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Product details
Overview
P4SMA150A-E3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power 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 (VC) at 1.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and telecom systems.
For engineers reviewing the P4SMA150A-E3/5A datasheet, P4SMA150A-E3/5A pinout, P4SMA150A-E3/5A application, or P4SMA150A-E3/5A equivalent, key selection criteria include unidirectional polarity, SMA package thermal resistance (RθJA = 120 °C/W), AEC-Q101 qualification status, clamping performance under 10/1000 µs surge, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
The P4SMA150A-E3/5A operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (143–158 V). Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at 128 V), while fast response time enables suppression of sub-nanosecond transients induced by inductive switching or ESD events.
Thermally, it relies on PCB copper pad area (0.2" × 0.2") for heat dissipation, with RθJA = 120 °C/W and RθJL = 30 °C/W. Derating applies above 25 °C ambient: peak pulse power drops linearly to 300 W above 91 V, and maximum junction temperature is rated at +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 128 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 143–158 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 207 V at IPPM = 1.4 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; critical for downstream component survivability. |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy-handling capability per transient; validated on 5.0 mm × 5.0 mm copper pads. |
| ID (Reverse Leakage) | <1.0 µA at 128 V - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max. | +150 °C - Maximum allowable junction temperature; supports operation in industrial environments with limited airflow. |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with cathode band marking; compatible with J-STD-020 MSL Level 1 reflow. |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, 0.208" × 0.157" footprint, cathode indicated by black band. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / low-side reference | Connected to ground or lower-potential rail in unidirectional TVS configuration; defines current direction during clamping. |
| Cathode | Protected line input / high-side connection | Connected to the line being protected (e.g., 12 V supply rail); reverse-biased during normal operation, avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 surge events up to 4 kV without derating on standard PCB layouts. |
| Glass passivated chip junction | Ensures long-term stability of breakdown voltage and leakage current across temperature and lifetime stress conditions. |
| AEC-Q101 qualified (P4SMA150A-E3/5A variant) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for under-hood and infotainment applications. |
| MSL Level 1 (260 °C peak) | Supports single-reflow assembly without moisture sensitivity concerns; eliminates bake requirements prior to SMT placement. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses), improving clamping fidelity. |
Applications
| Industrial Motor Drive Control | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O lines from inductive kickback during relay or solenoid switching in factory automation panels. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 24 V supply rail and ground, clamping transients before they reach sensitive logic inputs. Use Value: Prevents latch-up or permanent damage to MCU GPIOs and level-shifters exposed to >100 V spikes with <100 ns rise time. |
Use Scenario: Surge suppression on LIN bus lines and power inputs of door module ECUs subjected to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between LIN data line and chassis ground, absorbing repetitive 12 V system surges. Use Value: Maintains communication integrity during ISO 16750-2 load dump tests (up to 35 V, 400 ms) without signal distortion or reset events. |
| Telecom Power Supply Input | Consumer Appliance Sensor Interface |
Use Scenario: Input-stage protection of AC/DC adapters and PoE injectors against lightning-induced surges on primary-side DC rails. IC Role / Device Role / Timing Role: Primary-side TVS on +48 V output rail, coordinated with upstream MOVs to limit let-through energy to downstream DC-DC converters. Use Value: Reduces failure rate of isolated flyback controllers by limiting peak voltage to ≤207 V during 10/1000 µs 2 kV surges. |
Use Scenario: ESD and EFT protection for temperature/humidity sensor outputs in smart home hubs exposed to user handling and nearby RF sources. IC Role / Device Role / Timing Role: Low-capacitance TVS on analog sensor output traces, placed adjacent to connector to intercept fast transients before ADC input. Use Value: Limits junction capacitance to <100 pF at 0 V bias, preserving signal bandwidth while suppressing ±8 kV contact ESD per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Higher 600 W PPPM rating; larger SMB (DO-214AA) package; 224 V VC at 1.8 A. | Better suited for higher-energy surges but requires larger board area and different pad layout. | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4 and PCB space allows SMB footprint. |
| 1.5SMC150A | Same 150 V VWM and 207 V VC, but in larger SMC (DO-214AB) package; 1500 W PPPM; RθJA = 60 °C/W. | Superior thermal performance and surge margin, but incompatible with fine-pitch SMT lines due to 0.276" × 0.213" body size. | Choose for high-reliability industrial power supplies where thermal management and multi-event endurance are prioritized over miniaturization. |
Compared with SMBJ150A and 1.5SMC150A, the P4SMA150A-E3/5A offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and verified 400 W surge handling - making it preferred for space-constrained automotive and telecom modules requiring production-grade consistency and RoHS compliance.
Availability
P4SMA150A-E3/5A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power inputs, and consumer appliance sensor interfaces requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA150A-E3/5A 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, precision, and automotive-grade validation.
The P4SMA Series was developed for high-volume surface-mount transient suppression in cost-sensitive yet mission-critical applications - balancing surge robustness, thermal efficiency, and automated assembly compatibility across consumer, industrial, and automotive markets.
FAQ
What is the polarity configuration of the P4SMA150A-E3/5A?
The P4SMA150A-E3/5A is a unidirectional TVS diode, with the cathode identified by a black band on the SMA package body. It conducts only when reverse-biased beyond its breakdown voltage (143–158 V), making it suitable for DC power rail protection where polarity is fixed. Bidirectional variants use "CA" suffixes (e.g., P4SMA150CA).
Does the P4SMA150A-E3/5A meet automotive qualification standards?
Yes, the P4SMA150A-E3/5A carries AEC-Q101 qualification, confirmed in Vishay's documentation for the P4SMA150A variant with E3/5A packaging. This includes stress testing for temperature cycling, highly accelerated life testing (HALT), and ESD robustness - validating its use in automotive body electronics and infotainment systems.
What is the maximum clamping voltage of the P4SMA150A-E3/5A under surge conditions?
The P4SMA150A-E3/5A has a maximum clamping voltage (VC) of 207 V when subjected to a 10/1000 µs waveform at 1.4 A peak pulse current (IPPM). This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events.
How does the P4SMA150A-E3/5A perform thermally on standard PCB layouts?
The P4SMA150A-E3/5A achieves its rated 400 W peak pulse power only when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Its thermal resistance is RθJA = 120 °C/W and RθJL = 30 °C/W, meaning junction temperature rise is tightly coupled to PCB copper area and ambient conditions - derating is required above 25 °C ambient.
Is the P4SMA150A-E3/5A compatible with lead-free reflow processes?
Yes, the P4SMA150A-E3/5A meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, making it fully compatible with standard lead-free soldering profiles. The matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability and whisker resistance.
P4SMA150A-E3/5A 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:
- 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:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA150A-E3/5A FAQ
1.How can I place an order for P4SMA150A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150A-E3/5A 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 P4SMA150A-E3/5A reliable?
The price and inventory of P4SMA150A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150A-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA150A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150A-E3/5A?
P4SMA150A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150A-E3/5A 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 P4SMA150A-E3/5A?
For technical support, including P4SMA150A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150A-E3/5A requirements.
6.How does Aetrix verify that P4SMA150A-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA150A-E3/5A 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 P4SMA150A-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA150A-E3/5A?
All P4SMA150A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150A-E3/5A, 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 P4SMA150A-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA150A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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