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Vishay General Semiconductor - Diodes Division P4SMA15A-E3/61
- Part No.:
- P4SMA15A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA15A-E3/61.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:13,827
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Product details
Overview
P4SMA15A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features a 15 V breakdown voltage (VBR = 14.3–15.8 V at IT = 1.0 mA), 12.8 V stand-off voltage (VWM), 21.2 V maximum clamping voltage (VC) at 18.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFET gates, sensor interfaces, and DC power rails in industrial control systems.
For engineers reviewing the P4SMA15A-E3/61 datasheet, P4SMA15A-E3/61 pinout, P4SMA15A-E3/61 application, or P4SMA15A-E3/61 equivalent, key selection criteria include unidirectional polarity, 12.8 V working voltage margin, 21.2 V clamping performance under 18.9 A surge, RoHS-compliant matte tin terminations, and MSL Level 1 reflow compatibility up to 260 °C.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (12.8 V), it transitions rapidly from high-impedance to low-impedance state, diverting surge current away from downstream ICs. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at VWM).
Rated for 400 W peak pulse power (10/1000 µs), it delivers 18.9 A IPPM at 21.2 V clamping, with thermal resistance RθJA = 120 °C/W and RθJL = 30 °C/W. It supports continuous power dissipation of 3.3 W at 50 °C ambient and withstands 40 A non-repetitive forward surge (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1.0 mA test current - defines precise conduction onset for reliable overvoltage triggering |
| VWM | 12.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 21.2 V at 18.9 A - clamping voltage during 400 W surge, limiting stress on protected circuitry |
| IPPM | 18.9 A - peak pulse current capability under standardized 10/1000 µs waveform |
| PPPM | 400 W - transient energy handling capacity without degradation under defined pulse conditions |
| RθJA | 120 °C/W - junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads |
| TJ max | +150 °C - maximum junction temperature enabling operation in harsh industrial environments |
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; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse surge return path | Connected to protected line ground or low-side reference; forms current path during clamping |
| Cathode | Reverse-biased terminal / surge current sink | Connected to protected line (e.g., +12 V rail); conducts when transient exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 3 surges (1 kV/42 Ω) on 12 V systems |
| 21.2 V clamping voltage at 18.9 A | Limits voltage seen by downstream 15 V-rated components to safe margin below absolute max ratings |
| Glass-passivated junction | Ensures stable VBR tolerance (±5%), low leakage (<1 µA), and long-term reliability under thermal cycling |
| MSL Level 1, 260 °C peak reflow | Supports lead-free assembly without pre-baking; compatible with standard SMT production lines |
| AEC-Q101 qualified option available | HE3 suffix variant meets automotive-grade stress testing for under-hood and infotainment applications |
Applications
| Industrial Motor Drive Control | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting gate drivers and microcontroller I/O pins from inductive kickback during relay or solenoid switching in PLCs and motor controllers. IC Role / Device Role: Unidirectional shunt clamp placed between 12 V supply rail and ground, triggered only during positive transients. Use Value: Limits transient overshoot to ≤21.2 V, preventing latch-up or oxide damage in 15 V-tolerant logic and gate drivers. |
Use Scenario: Safeguarding LIN bus transceivers and sensor inputs (e.g., door lock actuators) against load dump and jump-start surges. IC Role / Device Role: Standoff-rated TVS on 12 V power input to BCM sub-circuits, absorbing repetitive 400 W pulses without derating. Use Value: Maintains <1 µA leakage at 12.8 V, ensuring low quiescent current compliance while clamping to 21.2 V during 100 V/50 ms load dump events. |
| Consumer Power Adapter Output | Telecom PoE Midspan Interface |
|
Use Scenario: Secondary-side overvoltage suppression on 12 V DC output of wall adapters powering smart home hubs and IoT gateways. IC Role / Device Role: Final-stage transient guard before LDO regulators and USB power switches. Use Value: Fast response time and 21.2 V clamping prevent brownout or reset events caused by ESD coupling into output traces. |
Use Scenario: Data line protection on 48 V PoE midspan injectors where Ethernet pairs carry both power and signals. IC Role / Device Role: Unidirectional clamp on DC bias lines feeding active Ethernet magnetics, referenced to local ground. Use Value: Withstands 40 A IFSM surge and maintains 12.8 V standoff, allowing clean 48 V delivery while suppressing induced transients from cable coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A (Bourns) | Same VWM (12.8 V), identical VC (21.2 V), but SMB package (DO-214AA) - 2.6 mm wider body, higher RθJA (100 °C/W) | Requires PCB pad revision; better suited for higher-power layouts with larger copper area | Select when board space allows larger footprint and thermal management prioritizes lower RθJA |
| 1.5SMC15A (ON Semiconductor) | Same electrical specs (VWM, VBR, VC, PPPM), but SMC (DO-214AB) package - 7.1 mm length vs. SMA's 4.3 mm | Higher mounting height; not suitable for ultra-low-profile assemblies | Choose for legacy designs using SMC footprints or where higher surge repetition rate is needed (300 W >91 V rating applies) |
Compared with P4SMA15A-E3/61, SMBJ15A offers slightly better thermal performance in larger layouts but requires PCB redesign, while 1.5SMC15A matches electrical behavior exactly but occupies significantly more board area - making P4SMA15A-E3/61 optimal for space-constrained, high-density industrial and automotive modules.
Availability
P4SMA15A-E3/61 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, consumer power adapters, and telecom PoE interfaces requiring stable component supply with full traceability and RoHS compliance.
Supply support for P4SMA15A-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, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive qualification.
The P4SMA Series is engineered for high-reliability transient suppression in space-constrained surface-mount applications, targeting industrial automation, automotive subsystems, and consumer electronics where consistent clamping and AEC-Q101 readiness matter.
FAQ
What is the maximum clamping voltage of the P4SMA15A-E3/61 under surge conditions?
The P4SMA15A-E3/61 has a maximum clamping voltage (VC) of 21.2 V at 18.9 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage imposed on protected circuitry during standardized surge events - critical for ensuring downstream 15 V-rated ICs remain within safe operating limits. The P4SMA15A-E3/61 achieves this with low incremental surge resistance and fast response.
Is the P4SMA15A-E3/61 suitable for automotive applications?
The base P4SMA15A-E3/61 is commercial-grade and RoHS-compliant, but not AEC-Q101 qualified. However, Vishay offers the P4SMA15AHE3_A variant (same electrical specs, HE3 suffix) which is fully AEC-Q101 qualified for automotive use. For under-hood or BCM applications requiring qualification, engineers must specify the HE3 version - the P4SMA15A-E3/61 itself is intended for industrial and consumer systems where automotive stress testing is not mandated.
What does the "-E3/61" suffix indicate in P4SMA15A-E3/61?
The "-E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "/61" specifies packaging in 7-inch diameter plastic tape and reel, with 1800 units per reel. This ordering code confirms compliance with JEDEC standards for solderability (J-STD-002) and whisker resistance (JESD 201 Class 2), and ensures compatibility with automated SMT placement equipment - essential for high-volume manufacturing of the P4SMA15A-E3/61.
How does the P4SMA15A-E3/61 compare to bidirectional TVS diodes like P4SMA15CA?
The P4SMA15A-E3/61 is unidirectional and protects only against positive transients on a referenced line (e.g., 12 V rail to ground), whereas P4SMA15CA is bidirectional and suppresses surges of either polarity - ideal for AC lines or differential data paths. The P4SMA15A-E3/61 offers tighter VBR tolerance (14.3–15.8 V) and lower leakage (<1 µA) than its bidirectional counterpart, making it preferable for DC power rail protection where polarity is fixed and leakage budget is constrained.
What is the thermal resistance and power derating behavior of the P4SMA15A-E3/61?
The P4SMA15A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W on standard 0.2" × 0.2" copper pads. Its 3.3 W steady-state power dissipation is rated at TA = 50 °C and derates linearly above that - reaching zero at 150 °C junction temperature. Surge power (400 W) is non-repetitive and subject to duty cycle limits (0.01 %), meaning the P4SMA15A-E3/61 must cool between events to avoid thermal runaway.
P4SMA15A-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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 18.9A
- Power - Peak Pulse:
- 400W
- 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)
P4SMA15A-E3/61 FAQ
1.How can I place an order for P4SMA15A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA15A-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 P4SMA15A-E3/61 reliable?
The price and inventory of P4SMA15A-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 P4SMA15A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA15A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA15A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA15A-E3/61?
P4SMA15A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA15A-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 P4SMA15A-E3/61?
For technical support, including P4SMA15A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA15A-E3/61 requirements.
6.How does Aetrix verify that P4SMA15A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA15A-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 P4SMA15A-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA15A-E3/61?
All P4SMA15A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA15A-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 P4SMA15A-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA15A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA15A-E3/61 Tags
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