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Vishay General Semiconductor - Diodes Division P4SMA15AHE3_A/I
- Part No.:
- P4SMA15AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA15AHE3_A/I.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,999
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Product details
Overview
P4SMA15AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 15 V breakdown voltage (VBR = 14.3–15.8 V at 1 mA), 21.2 V maximum clamping voltage (VC) at 18.9 A peak pulse current, and 400 W peak pulse power (10/1000 µs waveform). It delivers AEC-Q101 qualification, 150 °C max junction temperature, and low incremental surge resistance for robust ESD and surge protection on DC power rails and signal lines in automotive control modules.
For engineers reviewing the P4SMA15AHE3_A/I datasheet, P4SMA15AHE3_A/I pinout, P4SMA15AHE3_A/I application, or P4SMA15AHE3_A/I equivalent, this page provides verified electrical parameters, thermal derating behavior, clamping performance under transient stress, AEC-Q101 compliance status, and direct replacement guidance for automotive-grade TVS selection.
Technical Context
This unidirectional TVS operates with a glass-passivated silicon junction and exhibits fast response time (<1 ns), enabling suppression of fast-rising transients such as ESD (IEC 61000-4-2) and inductive switching spikes. Its 12.8 V stand-off voltage (VWM) ensures reliable blocking during normal operation while maintaining low leakage (<1 µA).
The device uses a single PN junction structure with cathode-band polarity marking, optimized for automated placement on PCBs with 0.2" × 0.2" copper pads per terminal. Thermal resistance is 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), supporting stable operation up to 150 °C junction temperature under defined PCB layout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1 mA - defines precise voltage threshold where avalanche conduction begins; critical for matching system overvoltage trip margin |
| VWM | 12.8 V - maximum continuous reverse working voltage before significant leakage; sets safe operating window below clamping level |
| VC @ IPPM | 21.2 V at 18.9 A - clamped voltage during 400 W transient; determines protected circuit's peak stress during surge event |
| IPPM | 18.9 A (10/1000 µs) - peak surge current capability; defines survivability against common lightning/inductive load transients |
| PPPM | 400 W - peak pulse power rating; confirms suitability for automotive ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 |
| TJ max | +150 °C - maximum junction temperature; enables use in under-hood automotive environments without thermal shutdown |
| AEC-Q101 | Qualified - validated for automotive reliability including HTOL, TCT, and ESD testing; required for ECUs, ADAS sensors, and body electronics |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Molding compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; forms cathode-grounded configuration for positive rail protection |
| Cathode | Avalanche conduction terminal | Marked with band; tied to higher-potential rail or signal line; conducts surge current to ground when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling, high-temperature operating life, and ESD robustness |
| 400 W peak pulse power (10/1000 µs) | Supports ISO 7637-2 Pulse 1 (−150 V/2 Ω) and Pulse 2a (+100 V/2 Ω) without failure in typical automotive harness configurations |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during transients-critical for protecting 12 V logic interfaces and CAN transceivers |
| MSL Level 1 (260 °C peak reflow) | Enables standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal and humidity stress |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of BCM microcontrollers and driver ICs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp transients above 15 V. Use Value: Limits peak rail voltage to ≤21.2 V during 400 W surges, preventing latch-up or permanent damage to downstream 12 V-rated ICs. |
Use Scenario: Safeguarding 24 V digital input channels of industrial PLCs against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on each input channel, configured anode-to-line, cathode-to-GND. Use Value: Maintains <1 µA leakage at 12.8 V while clamping 18.9 A transients to 21.2 V-preserving input threshold integrity and noise immunity. |
| Automotive ADAS Camera Power Rail | Telecom Base Station DC Feeder Line |
Use Scenario: Securing 12 V power to CMOS image sensor modules in rear-view and surround-view cameras exposed to vehicle battery transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on camera module input, positioned upstream of LDO regulators. Use Value: Fast <1 ns response prevents pixel corruption or sensor reset during ESD events; AEC-Q101 ensures lifetime reliability in vibration-prone mounting locations. |
Use Scenario: Protecting 48 V DC feeder lines feeding remote radio units (RRUs) from lightning-induced surges on outdoor telecom infrastructure. IC Role / Device Role / Timing Role: Secondary-level TVS in cascade with gas discharge tube (GDT) front-end for coordinated clamping. Use Value: 21.2 V clamping voltage allows tight coordination with upstream GDT; 150 °C rating supports operation inside sealed outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/5A | Same VBR range (14.3–15.8 V), identical SMA package, but rated for 400 W only up to 91 V; no AEC-Q101 qualification | Commercial/industrial use only; not approved for automotive ECUs or safety-critical modules | Select when AEC-Q101 is not required and cost optimization is prioritized over automotive qualification |
| 1.5SMC15A | Higher package thermal mass (DO-214AB), 400 W rating, same VBR/VC, but larger footprint and no AEC-Q101 | Preferred for high-power industrial systems where board space permits larger SMC package and thermal dissipation is critical | Choose when PCB layout allows DO-214AB and enhanced thermal performance outweighs size constraints |
Compared with SMAJ15A-E3/5A and 1.5SMC15A, P4SMA15AHE3_A/I uniquely combines AEC-Q101 qualification, SMA footprint, and full 400 W rating-making it the only drop-in solution for automotive production requiring both reliability validation and space-constrained layouts.
Availability
P4SMA15AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power interface designs requiring stable component supply, AEC-Q101 compliance, and repeatable surge suppression performance.
Supply support for P4SMA15AHE3_A/I 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 reliability, efficiency, and application-specific optimization.
The P4SMA Series targets automotive and industrial transient suppression, designed specifically to meet AEC-Q101 requirements while delivering consistent clamping performance across temperature and surge repetition rates.
FAQ
What is the clamping voltage of P4SMA15AHE3_A/I at its rated peak pulse current?
The P4SMA15AHE3_A/I has a maximum clamping voltage (VC) of 21.2 V at 18.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88367 and reflects worst-case clamping performance at TA = 25 °C with recommended PCB pad layout. The P4SMA15AHE3_A/I maintains this clamping level across its qualified operating temperature range.
Is P4SMA15AHE3_A/I suitable for bidirectional transient protection?
No, P4SMA15AHE3_A/I is a unidirectional TVS diode, indicated by the "A" suffix and cathode-band marking. It conducts only when reverse-biased beyond its breakdown voltage. For bidirectional protection, Vishay offers the P4SMA15CA variant. Using P4SMA15AHE3_A/I in bidirectional applications risks forward conduction and potential failure during negative transients.
Does P4SMA15AHE3_A/I require derating above 25 °C ambient temperature?
Yes, P4SMA15AHE3_A/I must be derated above 25 °C ambient per Figure 2 in Vishay document 88367. Its peak pulse power drops linearly to zero at 150 °C junction temperature, with a thermal resistance of 120 °C/W (junction-to-ambient). Derating is mandatory for sustained surge duty cycles or high-temperature environments like automotive under-hood installations.
What does the "HE3_A/I" suffix indicate in P4SMA15AHE3_A/I?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction; "A" specifies the revision code per Vishay's ordering matrix; "I" indicates packaging in 13-inch tape-and-reel (7500 units per reel). This full suffix confirms P4SMA15AHE3_A/I meets automotive reliability standards and ships in high-volume production-ready format.
Can P4SMA15AHE3_A/I replace SMAJ15A in an existing design?
P4SMA15AHE3_A/I can replace SMAJ15A electrically and mechanically (same SMA package, VBR, VC, and IPPM), but adds AEC-Q101 qualification and extended 400 W rating consistency above 91 V. No PCB changes are needed, though designers should verify that the application requires automotive-grade validation-SMAJ15A lacks this qualification and is intended for commercial use only.
P4SMA15AHE3_A/I 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA15AHE3_A/I FAQ
1.How can I place an order for P4SMA15AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA15AHE3_A/I 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 P4SMA15AHE3_A/I reliable?
The price and inventory of P4SMA15AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA15AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA15AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA15AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA15AHE3_A/I?
P4SMA15AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA15AHE3_A/I 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 P4SMA15AHE3_A/I?
For technical support, including P4SMA15AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA15AHE3_A/I requirements.
6.How does Aetrix verify that P4SMA15AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA15AHE3_A/I 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 P4SMA15AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA15AHE3_A/I?
All P4SMA15AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA15AHE3_A/I, 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 P4SMA15AHE3_A/I part is unused and in its original packaging.
Return procedure for P4SMA15AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA15AHE3_A/I Tags
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