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Vishay General Semiconductor - Diodes Division P4SMA10AHE3_A/H
- Part No.:
- P4SMA10AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA10AHE3_A/H.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA10AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping transient overvoltages on power and signal lines. It features 10 V standoff voltage (VWM), 14.5 V maximum clamping voltage (VC) at 27.6 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform), making it suitable for protecting MOSFETs, ICs, and sensor signal lines in automotive and industrial electronics.
For engineers reviewing the P4SMA10AHE3_A/H datasheet, P4SMA10AHE3_A/H pinout, P4SMA10AHE3_A/H application, or P4SMA10AHE3_A/H equivalent, key selection considerations include its AEC-Q101 qualification, unidirectional polarity with cathode band marking, 150 °C max junction temperature, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
The P4SMA10AHE3_A/H operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 9.5–10.5 V breakdown range (VBR at 1 mA). Its low incremental surge resistance and fast response time enable effective suppression of ESD and inductive switching transients before sensitive downstream components are damaged.
Thermally, it exhibits 120 °C/W junction-to-ambient thermal resistance (RθJA) under standard PCB mounting, and is rated for repetitive 400 W pulses at TA = 25 °C - derated to 300 W above 91 V - with peak forward surge current capability of 40 A (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 8.55 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working margin below clamping threshold. |
| VBR (Breakdown Voltage) | 9.5–10.5 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 14.5 V at 27.6 A IPPM - Peak voltage seen by protected circuit during worst-case 10/1000 µs surge; critical for IC-level protection margin. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Energy-handling capacity under standardized surge waveform; supports robust IEC 61000-4-5 level 4 compliance. |
| ID (Reverse Leakage) | 10 µA max at VWM - Low leakage preserves system efficiency and prevents false triggering in low-power sensor interfaces. |
| TJ max | 150 °C - Enables reliable operation in under-hood automotive and high-temperature industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side (e.g., GND or return path); defines directionality in unidirectional configuration. |
| Cathode (marked with band) | Reverse voltage terminal / Clamping node | Connected to line being protected (e.g., 12 V rail or sensor input); conducts avalanche current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces requiring extended temperature and reliability validation. |
| 400 W peak pulse power (10/1000 µs) | Supports high-energy transient suppression without degradation, enabling single-device protection for 12 V/24 V power rails per IEC 61000-4-5. |
| Low clamping voltage (14.5 V @ 27.6 A) | Provides tight voltage limiting margin for 12 V systems, ensuring protected ICs remain within absolute maximum ratings during surge events. |
| MSL Level 1 (260 °C peak reflow) | Enables compatibility with standard lead-free SMT reflow profiles without moisture-related failure risk. |
| Glass passivated junction | Ensures stable electrical characteristics and long-term reliability under humidity and thermal stress in harsh environments. |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and ground to clamp negative-going spikes and positive surges up to 400 W. Use Value: Prevents latch-up or permanent damage to precision op-amps and ADC inputs while maintaining signal integrity below 14.5 V clamping threshold. |
Use Scenario: Safeguarding digital input terminals of programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC input channels, absorbing repetitive 10/1000 µs transients without degradation. Use Value: Eliminates need for external RC snubbers or varistors, reducing BOM count and board space while meeting IEC 61000-4-4 level 3 immunity. |
| Consumer Power Adapter Protection | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD and smart home devices. IC Role / Device Role / Timing Role: Unidirectional clamping device across +5 V or +9 V output rails to protect USB controller ICs and charging ICs. Use Value: Limits fault voltage to ≤14.5 V during capacitor discharge or regulator failure, preventing catastrophic failure of downstream silicon. |
Use Scenario: Protection of Ethernet PHY interface pins and RS-485 transceivers against lightning-induced surges and ESD in network equipment. IC Role / Device Role / Timing Role: Fast-response TVS on differential pairs or single-ended bias lines, leveraging low capacitance and sub-nanosecond response. Use Value: Maintains signal integrity up to 100 MHz while providing >15 kV ESD (IEC 61000-4-2) and 1 kV surge (IEC 61000-4-5) immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same SMA package, 10 V VWM, but rated for 400 W with higher VC (16.7 V) and no AEC-Q101 qualification. | Lacks automotive qualification; suitable for commercial/industrial use only where AEC compliance is not required. | Select SMAJ10A for cost-sensitive non-automotive designs needing identical footprint but tolerating higher clamping voltage. |
| 1.5SMC10A | Higher power (1500 W), larger SMC (DO-214AB) package, same 10 V VWM and 14.5 V VC, AEC-Q101 available in HE3 variant. | Requires PCB layout change due to larger body and different pad dimensions; suited for higher-energy surge environments. | Choose 1.5SMC10AHE3 when system-level surge requirements exceed 400 W or when longer transient duration must be accommodated. |
Compared with SMAJ10A, P4SMA10AHE3_A/H offers tighter clamping and automotive qualification; compared with 1.5SMC10AHE3, it provides identical clamping performance in a smaller, lower-inductance SMA package-ideal for space-constrained automotive ECUs and high-frequency signal line protection.
Availability
P4SMA10AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, consumer power adapter secondary-side protection, and telecom line interface circuits requiring stable component supply with full traceability and AEC-Q101 assurance.
Supply support for P4SMA10AHE3_A/H 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, efficiency, and application-specific optimization.
The P4SMA Series is engineered for high-reliability transient suppression in automotive, industrial, and consumer electronics, delivering consistent clamping performance and AEC-Q101 validation in compact surface-mount packages.
FAQ
What is the clamping voltage of P4SMA10AHE3_A/H at its rated peak pulse current?
The P4SMA10AHE3_A/H has a maximum clamping voltage (VC) of 14.5 V when subjected to its specified peak pulse current (IPPM) of 27.6 A under the 10/1000 µs waveform. This value is measured per JEDEC standards and confirmed in the Vishay datasheet revision 09-Jan-2024, ensuring predictable overvoltage limiting for protected circuits.
Is P4SMA10AHE3_A/H qualified for automotive applications?
Yes, P4SMA10AHE3_A/H is AEC-Q101 qualified, as explicitly stated in the Vishay P4SMA Series datasheet (Document Number: 88367, Revision: 09-Jan-2024). The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, validated for use in automotive electronics including engine control, body electronics, and ADAS sensor modules.
What does the "_A/H" suffix mean in P4SMA10AHE3_A/H?
In P4SMA10AHE3_A/H, "_A" indicates the revision level (A) per Vishay's ordering nomenclature, and "/H" specifies the packaging format: 7-inch diameter plastic tape and reel with 1800 units per reel. This matches the ordering information table in the official datasheet, confirming standard SMT-compatible delivery for high-volume production.
How does P4SMA10AHE3_A/H differ from bidirectional variants like P4SMA10CA?
P4SMA10AHE3_A/H is unidirectional, with polarity marked by a cathode band and intended for DC line protection where reverse conduction is undesirable. In contrast, P4SMA10CA is bidirectional, symmetric in both directions, and used in AC-coupled or floating signal paths. Their electrical parameters (e.g., VWM, VC) differ accordingly - P4SMA10AHE3_A/H has 8.55 V VWM, while P4SMA10CA has 8.55 V VWM in each direction.
What is the thermal resistance of P4SMA10AHE3_A/H, and how does it affect PCB layout?
The P4SMA10AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard FR-4 PCB; increasing copper area or adding thermal vias reduces RθJA, improving surge handling capability and long-term reliability under repetitive transient conditions.
P4SMA10AHE3_A/H 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):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 27.6A
- 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)
P4SMA10AHE3_A/H FAQ
1.How can I place an order for P4SMA10AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA10AHE3_A/H 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 P4SMA10AHE3_A/H reliable?
The price and inventory of P4SMA10AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA10AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA10AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA10AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA10AHE3_A/H?
P4SMA10AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA10AHE3_A/H 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 P4SMA10AHE3_A/H?
For technical support, including P4SMA10AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA10AHE3_A/H requirements.
6.How does Aetrix verify that P4SMA10AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA10AHE3_A/H 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 P4SMA10AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA10AHE3_A/H?
All P4SMA10AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA10AHE3_A/H, 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 P4SMA10AHE3_A/H part is unused and in its original packaging.
Return procedure for P4SMA10AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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