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Vishay General Semiconductor - Diodes Division P4SMA150A-E3/61
- Part No.:
- P4SMA150A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150A-E3/61.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA150A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in 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 at 1.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, automotive ECUs, and telecom power supplies.
For engineers reviewing the P4SMA150A-E3/61 datasheet, P4SMA150A-E3/61 pinout, P4SMA150A-E3/61 application, or P4SMA150A-E3/61 equivalent, key selection criteria include clamping performance under 10/1000 µs transients, thermal resistance (RθJA = 120 °C/W), unidirectional polarity marking, SMA (DO-214AC) package compatibility, and AEC-Q101 qualification status for automotive use.
Technical Context
The P4SMA150A-E3/61 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1 ns) and low incremental surge resistance. Its clamping action begins at VBR (143–158 V) and limits transient voltages to ≤207 V at IPPM = 1.4 A under standardized 10/1000 µs pulses.
Thermally, it sustains operation from –65 °C to +150 °C junction temperature, with derated peak power above 25 °C ambient per Fig. 2. The device is rated for 3.3 W steady-state power dissipation on infinite heatsink at 50 °C and withstands 40 A non-repetitive forward surge (8.3 ms half-sine) - confirming suitability for inductive load switching protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 128 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown) | 143–158 V at 1 mA - Avalanche onset range; ensures predictable turn-on during transients without premature conduction. |
| VC (Clamping) | 207 V at IPPM = 1.4 A - Peak voltage seen by protected circuit during worst-case 10/1000 µs surge; determines IC survivability. |
| PPPM | 400 W (≤91 V), 300 W (>91 V) - Surge energy handling capacity; confirms compliance with IEC 61000-4-5 Level 4 requirements. |
| ID (Leakage) | 1.0 µA max at VWM - Ultra-low reverse leakage preserves system efficiency and prevents false triggering in high-impedance circuits. |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient; requires ≥5.0 mm × 5.0 mm copper pads for rated power handling. |
| Package | SMA (DO-214AC) - Standardized SMD outline with cathode band marking; compatible with automated placement and reflow profiles up to 260 °C. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by band; anode is unmarked end. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when voltage exceeds VBR. |
| Anode (unmarked end) | Reference/return path | Typically tied to system ground or low-impedance return; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables protection against severe lightning-induced surges and inductive kickback in 24–48 V systems. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress. |
| AEC-Q101 qualified (HE3/HM3 variants) | Validates suitability for automotive powertrain and body electronics where qualification is mandatory. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without moisture sensitivity concerns or pre-bake requirements. |
| Low profile (max height 2.29 mm) | Reduces board space and mechanical interference in dense PCB layouts such as telecom modules. |
Applications
| Industrial Motor Drives | Automotive Engine Control Units |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O against back-EMF spikes from brushed DC motors and solenoids. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MOSFET gate and source, clamping negative transients within nanoseconds. Use Value: Prevents gate oxide damage and logic upset by limiting voltage to ≤207 V during 1.4 A surges, preserving functional safety integrity. |
Use Scenario: Input line protection for 12 V/24 V power rails feeding engine control modules and sensor interfaces. IC Role / Device Role / Timing Role: Primary front-end suppressor on battery-supplied lines, absorbing load dump and jump-start transients. Use Value: Withstands 40 A surge (8.3 ms) and clamps to 207 V, meeting ISO 7637-2 Pulse 5a requirements without upstream fusing. |
| Telecom Power Supplies | Industrial PLC I/O Modules |
Use Scenario: Secondary-side transient suppression on 48 V DC distribution buses feeding PoE injectors and baseband processors. IC Role / Device Role / Timing Role: Standoff-rated TVS across output rails, activated only during lightning-induced ring waves or EFT bursts. Use Value: 128 V VWM provides 20 % margin above nominal 48 V rail, while 207 V VC ensures downstream DC-DC converters remain within absolute maximum ratings. |
Use Scenario: Signal line protection for analog inputs (4–20 mA loops) and digital fieldbus interfaces (RS-485, CAN) exposed to factory EMI. IC Role / Device Role / Timing Role: Point-of-entry TVS on terminal blocks, shunting induced common-mode noise before conditioning circuitry. Use Value: 1.0 µA leakage at 128 V avoids loading precision current loops; fast response prevents latch-up in RS-485 transceivers. |
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 | Same VWM/VBR/VC specs but in larger SMB (DO-214AA) package; RθJA = 85 °C/W vs. 120 °C/W. | Better thermal performance allows higher sustained surge duty cycles; requires larger PCB footprint. | Select SMBJ150A when board layout permits larger pad area and thermal management prioritizes derating margin over miniaturization. |
| 1.5SMC150A | Same electrical specs but in SMC (DO-214AB) package; 1.5 kW peak power rating (10/1000 µs) vs. 400 W. | Higher PPPM supports single-event lightning strikes; not rated for repetitive surges above 0.01 % duty cycle. | Choose 1.5SMC150A for infrequent, high-energy threats (e.g., outdoor telecom cabinets); avoid in high-frequency switching environments. |
Compared with P4SMA150A-E3/61, SMBJ150A offers superior thermal dissipation in space-tolerant designs, while 1.5SMC150A delivers higher single-pulse energy handling at the cost of reduced repetitive surge capability and larger footprint - making P4SMA150A-E3/61 optimal for compact, high-volume industrial and automotive PCBs requiring balanced performance and manufacturability.
Availability
P4SMA150A-E3/61 is available at Aetrix Electronics and suitable for industrial motor drives, automotive engine control units, and telecom power supplies requiring stable component supply, RoHS-compliant sourcing, and consistent tape-and-reel delivery for SMT production.
Supply support for P4SMA150A-E3/61 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, automotive qualification, and high-volume manufacturing.
The P4SMA Series targets cost-sensitive, high-reliability transient suppression in consumer, industrial, and automotive electronics - engineered for automated assembly, thermal stability, and compliance with AEC-Q101 and UL 497B standards.
FAQ
What is the maximum clamping voltage of the P4SMA150A-E3/61 under a 10/1000 µs surge?
The P4SMA150A-E3/61 has a maximum clamping voltage (VC) of 207 V when subjected to its rated peak pulse current of 1.4 A with a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88367 and defines the upper voltage limit imposed on protected circuitry during standardized surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is the P4SMA150A-E3/61 suitable for automotive applications?
The P4SMA150A-E3/61 itself is RoHS-compliant and commercial-grade; however, the automotive-qualified variant is P4SMA150AHE3_A, which carries AEC-Q101 qualification. While P4SMA150A-E3/61 shares identical electrical characteristics, only the HE3-suffixed version is certified for automotive powertrain and body electronics - users requiring qualification must specify the HE3 suffix and verify compliance documentation.
What is the thermal resistance of the P4SMA150A-E3/61, and how does it affect PCB layout?
The P4SMA150A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W, measured on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve rated 400 W peak power, PCB layout must provide minimum pad dimensions and adequate copper area; reducing pad size increases junction temperature and necessitates derating per Figure 2 in the datasheet.
Does the P4SMA150A-E3/61 have bidirectional capability?
No - the P4SMA150A-E3/61 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional versions use the "CA" suffix (e.g., P4SMA150CA). Using P4SMA150A-E3/61 in AC-coupled or bipolar signal paths would result in unintended forward conduction; always match polarity to circuit topology.
What is the reverse leakage current specification for the P4SMA150A-E3/61 at its standoff voltage?
The P4SMA150A-E3/61 specifies a maximum reverse leakage current (ID) of 1.0 µA at its stand-off voltage (VWM) of 128 V, tested at 25 °C. This ultra-low leakage ensures minimal power loss and avoids false triggering in high-impedance sensing circuits - a key advantage over older TVS families with leakage in the tens of µA range.
P4SMA150A-E3/61 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-E3/61 FAQ
1.How can I place an order for P4SMA150A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150A-E3/61 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-E3/61 reliable?
The price and inventory of P4SMA150A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA150A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150A-E3/61?
P4SMA150A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150A-E3/61 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-E3/61?
For technical support, including P4SMA150A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150A-E3/61 requirements.
6.How does Aetrix verify that P4SMA150A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA150A-E3/61 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-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA150A-E3/61?
All P4SMA150A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150A-E3/61, 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-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA150A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA150A-E3/61 Tags
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