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Vishay General Semiconductor - Diodes Division P4SMA15A-M3/61
- Part No.:
- P4SMA15A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA15A-M3/61.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,204
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Product details
Overview
P4SMA15A-M3/61 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 12.8 V stand-off voltage (VWM), 14.3–15.8 V breakdown voltage (VBR) at 1 mA, 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.
For engineers reviewing the P4SMA15A-M3/61 datasheet, P4SMA15A-M3/61 pinout, P4SMA15A-M3/61 application, or P4SMA15A-M3/61 equivalent, this device serves as a halogen-free, RoHS-compliant TVS for DC power rail and signal line protection in automotive, industrial, and telecom systems where fast response (<1 ns), low incremental surge resistance, and AEC-Q101 qualification (via M3 suffix) are critical selection criteria.
Technical Context
The P4SMA15A-M3/61 operates as a unidirectional avalanche diode, clamping transient overvoltages above its breakdown threshold while maintaining low leakage (<1 µA at 12.8 V) under normal operating conditions. Its glass-passivated junction ensures stable VBR tolerance (±5%) and robust surge handling across -65 °C to +150 °C junction temperature range.
It delivers 400 W peak pulse power (derated to 300 W above 91 V) with 10/1000 µs waveform on 5.0 mm × 5.0 mm copper pads, and exhibits 0.084 %/°C temperature coefficient of VBR, enabling predictable performance across thermal environments without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 12.8 V - Maximum continuous reverse working voltage before clamping begins; sets upper limit for normal circuit operation. |
| VBR (Breakdown Voltage) | 14.3–15.8 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering during transients without premature conduction. |
| VC (Clamping Voltage) | 21.2 V at 18.9 A - Maximum voltage seen by protected circuit during 10/1000 µs surge; defines worst-case stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability under standardized 10/1000 µs waveform; validates protection level for IEC 61000-4-5 Level 3/4 surges. |
| IPPM (Peak Pulse Current) | 18.9 A - Maximum non-repetitive surge current handled at rated VC; determines minimum trace width and PCB layout margin required. |
| TJmax | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
SMA (DO-214AC) package with cathode band marking on one end; two-terminal device with anode and cathode leads. Matte tin-plated terminals meet J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode | Reference / ground return | Typically tied to system ground; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables protection against severe IEC 61000-4-5 surges without derating in standard PCB layouts. |
| 21.2 V clamping voltage at 18.9 A | Keeps protected ICs (e.g., microcontrollers, sensors) within safe absolute maximum ratings during transient events. |
| 0.084 %/°C VBR tempco | Minimizes drift in clamping threshold across automotive (-40 °C to +125 °C ambient) operating ranges. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU environmental compliance mandates. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without moisture sensitivity concerns or baking. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges. Use Value: Limits transient voltage to ≤21.2 V, preventing damage to 3.3 V/5 V logic supplies and CAN transceivers downstream. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS on 0–5 V or 4–20 mA signal lines to absorb sub-100 ns ESD pulses. Use Value: Sub-1 ns response time and <1 µA leakage preserve signal integrity and measurement accuracy in precision sensor interfaces. |
| Telecom DC Power Input Protection | Consumer USB Port Surge Suppression |
Use Scenario: Safeguarding PoE-powered switches and base stations against lightning-induced surges on 48 V input rails. IC Role / Device Role / Timing Role: Primary clamping device on DC input stage, coordinated with upstream fuses and common-mode chokes. Use Value: 400 W rating handles repetitive surges per Telcordia GR-1089-CORE, extending field reliability in outdoor deployments. |
Use Scenario: Adding secondary-level surge immunity to USB 2.0 data lines and VBUS in smart home hubs. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to suppress hot-plug overshoot and contact bounce spikes. Use Value: 12.8 V VWM allows full 5 V operation while clamping >15 V transients-compatible with USB BC1.2 charging specifications. |
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), higher VC (24.4 V), larger SMB package (DO-214AA), 600 W rating. | Better suited for higher-energy surges but requires larger PCB area; not drop-in due to different footprint. | Select when surge energy exceeds 400 W and board space permits SMB layout. |
| 1.5SMC15A (ON Semiconductor) | Identical VWM/VBR/VC specs, same SMA package, but rated at 1.5 kW peak power (10/1000 µs) with larger die. | Higher power handling enables longer surge duration immunity; may require thermal derating on small pads. | Choose for mission-critical industrial systems needing extended surge endurance beyond 400 W baseline. |
Compared with SMBJ15A and 1.5SMC15A, the P4SMA15A-M3/61 offers optimal balance of compact SMA footprint, halogen-free compliance, and verified 400 W surge capability-making it ideal for space-constrained, environmentally regulated designs where precise clamping and AEC-Q101 alignment are prioritized over ultra-high power headroom.
Availability
P4SMA15A-M3/61 is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, halogen-free compliance, and AEC-Q101-aligned reliability.
Supply support for P4SMA15A-M3/61 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, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified, and industry-standard solutions.
The P4SMA15A-M3/61 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, low-profile transient suppression in automotive, industrial, and telecom infrastructure where fast response, stable clamping, and regulatory compliance are mandatory.
FAQ
What is the maximum clamping voltage of the P4SMA15A-M3/61 under surge conditions?
The P4SMA15A-M3/61 has a maximum clamping voltage (VC) of 21.2 V at 18.9 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions on 5.0 mm × 5.0 mm copper pads and represents the highest voltage imposed on the protected circuit during a defined transient event. Engineers must ensure downstream components tolerate this clamping level under worst-case surge scenarios.
Is the P4SMA15A-M3/61 suitable for automotive applications?
Yes, the P4SMA15A-M3/61 is halogen-free and RoHS-compliant per its M3 suffix, and the P4SMA15A variant is explicitly listed as AEC-Q101 qualified in Vishay documentation. While the exact ordering code P4SMA15A-M3/61 does not carry the HE3/HM3 automotive suffix, its base P4SMA15A construction meets AEC-Q101 requirements-confirmed by Vishay's qualification statement covering "_A" devices up to 220 V. For certified automotive use, specify P4SMA15AHE3_A or P4SMA15AHM3_A.
How does the P4SMA15A-M3/61 differ from bidirectional TVS diodes like P4SMA15CA?
The P4SMA15A-M3/61 is unidirectional and protects only against positive-going transients on a referenced line (e.g., VCC-to-GND), whereas P4SMA15CA is bidirectional and suppresses both polarities (e.g., AC signal lines). The P4SMA15A-M3/61 has a cathode band marking and forward voltage drop (~3.5 V at 25 A), while P4SMA15CA lacks polarity marking and exhibits symmetrical clamping in both directions. Use P4SMA15A-M3/61 for DC power rails; choose P4SMA15CA for differential or AC-coupled signals.
What is the thermal resistance of the P4SMA15A-M3/61, and how does it affect PCB layout?
The P4SMA15A-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead resistance (RθJL) of 30 °C/W. These values assume mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C under 3.3 W steady-state dissipation, designers must provide adequate copper area and avoid excessive trace length-especially critical in high-ambient environments like engine compartments.
Can the P4SMA15A-M3/61 be used in parallel for higher surge current handling?
No-parallel connection of P4SMA15A-M3/61 devices is not recommended due to VBR mismatch (14.3–15.8 V range) causing uneven current sharing and potential thermal runaway. Vishay specifies single-device operation only. For higher current capability, select a higher-rated part such as P4SMA24A (25.2 V VBR, 33.2 V VC) or switch to a 600 W SMB package like SMBJ15A, rather than paralleling P4SMA15A-M3/61 units.
P4SMA15A-M3/61 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-M3/61 FAQ
1.How can I place an order for P4SMA15A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA15A-M3/61 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-M3/61 reliable?
The price and inventory of P4SMA15A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA15A-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA15A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA15A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA15A-M3/61?
P4SMA15A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA15A-M3/61 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-M3/61?
For technical support, including P4SMA15A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA15A-M3/61 requirements.
6.How does Aetrix verify that P4SMA15A-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA15A-M3/61 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-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA15A-M3/61?
All P4SMA15A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA15A-M3/61, 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-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA15A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA15A-M3/61 Tags
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