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Vishay General Semiconductor - Diodes Division P4SMA10CAHE3_A/H
- Part No.:
- P4SMA10CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA10CAHE3_A/H.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,797
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Product details
Overview
P4SMA10CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features 10 V standoff voltage (VWM), 11.1 V minimum breakdown voltage (VBR), 400 W peak pulse power (10/1000 µs), ≤1 μA reverse leakage at VWM, and 17.1 V maximum clamping voltage at rated IPPM - used to protect MOSFETs, sensor interfaces, and ICs in automotive and industrial control systems.
For engineers reviewing the P4SMA10CAHE3_A/H datasheet, P4SMA10CAHE3_A/H pinout, P4SMA10CAHE3_A/H application, or P4SMA10CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
The P4SMA10CAHE3_A/H operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), enabling protection against ESD, inductive switching spikes, and lightning-induced surges.
Rated for 400 W peak pulse power (10/1000 µs waveform) at 25 °C and derated above TA = 25 °C per Fig. 2, it delivers 27.6 A peak pulse current (IPPM) and maintains clamping voltage ≤17.1 V under full surge load - critical for safeguarding 3.3 V and 5 V logic interfaces while meeting UL 497B recognition and MSL Level 1 reflow compatibility (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 10 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin for 12 V nominal circuits. |
| VBR (Breakdown Voltage) | 11.1 V min / 12.3 V max at 1 mA - Ensures reliable, repeatable avalanche turn-on within tight tolerance for predictable clamping onset. |
| VC (Clamping Voltage) | 17.1 V max at 27.6 A IPPM - Limits transient voltage seen by downstream circuitry, protecting 15 V-rated components. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Sustains high-energy transients common in automotive load-dump and industrial motor drive environments. |
| ID (Reverse Leakage) | ≤1 μA at 10 V - Minimizes standby power loss and avoids false triggering in low-current sensor or battery-backed circuits. |
| TJ max | 150 °C - Supports operation in under-hood automotive and high-temperature industrial enclosures without thermal derating. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM, enabling use in safety-critical modules. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional device with no polarity marking; matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix), compatible with J-STD-002 solderability and JESD 22-B102 whisker testing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Conducts during negative-going transients; forms symmetrical clamping path with cathode in bidirectional configuration. |
| Cathode | Transient current entry (positive polarity) | Conducts during positive-going transients; enables balanced clamping across both voltage polarities without external bias. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, sensor bridges) without polarity concerns. |
| 400 W peak pulse rating | Handles high-energy transients from inductive load switching (e.g., solenoid drivers, relay coils) without degradation. |
| AEC-Q101 qualification | Validates reliability for automotive body control modules, ADAS sensors, and infotainment power rails per industry stress standards. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C), eliminating bake requirements and simplifying SMT line integration. |
| Glass-passivated junction | Provides stable VBR over temperature and lifetime, reducing parameter drift in harsh thermal cycling environments. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of engine coolant temperature (ECT) and manifold absolute pressure (MAP) sensors from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤17.1 V, preventing ADC saturation and latch-up in 5 V rail systems while maintaining signal integrity below 10 V normal operation. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges and contact bounce. IC Role / Device Role / Timing Role: Standoff protection device mounted directly at terminal block entry point before optocoupler input stage. Use Value: Clamps 1 kV/500 A transients to <18 V within nanoseconds, preserving optocoupler CTR and enabling >1 million surge cycles per channel. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding RS-485 transceiver bus lines in networked building automation systems exposed to nearby lightning strikes. IC Role / Device Role / Timing Role: Differential-line TVS pair (one per line) referenced to ground, placed adjacent to transceiver pins. Use Value: Symmetric clamping ensures common-mode and differential-mode surge suppression without skew, maintaining data integrity up to 10 Mbps. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across-motor terminals to absorb inductive kickback during PWM commutation and relay switching. Use Value: Dissipates 400 W pulses without failure, extending motor driver MOSFET lifetime and eliminating need for snubber RC networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Same VWM/VBR/VC specs but SMB (DO-214AA) package - 2.5 mm wider body, higher RθJA (150 °C/W vs. 120 °C/W). | Lower power density; less suitable for space-constrained automotive modules where SMA footprint is specified. | Select SMBJ10CA only when board layout allows larger pad area and thermal relief is not critical. |
| 1.5KE10CA | Through-hole TO-204AE (DO-15); 1500 W rating but slower response (>5 ns), higher clamping voltage (20.1 V), and no AEC-Q101 qualification. | Not suitable for automated SMT lines or automotive applications requiring qualification and fast response. | Choose 1.5KE10CA only for legacy through-hole designs where cost outweighs performance and qualification needs. |
Compared with SMBJ10CA and 1.5KE10CA, the P4SMA10CAHE3_A/H uniquely combines AEC-Q101 qualification, SMA footprint efficiency, sub-1 ns response, and 400 W pulse handling - making it the preferred choice for next-generation automotive and industrial SMT designs demanding reliability and miniaturization.
Availability
P4SMA10CAHE3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom line interfaces, and consumer appliance motor drives requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for P4SMA10CAHE3_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 high-reliability, automotive-grade, and AEC-Q qualified components.
The P4SMA Series was developed specifically for robust, surface-mount transient suppression in automotive, industrial, and telecom applications - balancing high pulse power, tight parametric tolerances, and automated assembly compatibility.
FAQ
What is the clamping voltage of the P4SMA10CAHE3_A/H under full-rated surge current?
The P4SMA10CAHE3_A/H has a maximum clamping voltage (VC) of 17.1 V at its rated peak pulse current (IPPM) of 27.6 A, measured using the standardized 10/1000 µs waveform. This value ensures downstream 15 V-rated components remain within safe operating limits during surge events. The P4SMA10CAHE3_A/H achieves this with low incremental surge resistance and symmetric bidirectional conduction.
Is the P4SMA10CAHE3_A/H suitable for automotive applications?
Yes, the P4SMA10CAHE3_A/H is AEC-Q101 qualified and manufactured with HE3 suffix indicating RoHS-compliant and automotive-grade construction. It meets stress test requirements for high-temperature operation (TJ max = 150 °C), thermal cycling, and ESD robustness - making it appropriate for engine control units, body electronics, and ADAS sensor interfaces. The P4SMA10CAHE3_A/H is explicitly listed in Vishay's automotive ordering matrix.
Does the P4SMA10CAHE3_A/H have polarity markings?
No, the P4SMA10CAHE3_A/H is a bidirectional TVS diode and carries no cathode band or polarity marking on the SMA (DO-214AC) package. Its symmetrical structure allows installation in either orientation on the PCB, simplifying layout and reducing assembly errors. This distinguishes it from unidirectional variants like P4SMA10A, which feature a visible cathode band.
What is the thermal resistance of the P4SMA10CAHE3_A/H?
The P4SMA10CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on the recommended 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads per terminal. Its junction-to-lead resistance (RθJL) is 30 °C/W. These values support stable operation at full 400 W pulse power under controlled PCB layout conditions - critical for thermal design validation of the P4SMA10CAHE3_A/H in high-density assemblies.
How does the P4SMA10CAHE3_A/H differ from the P4SMA10A variant?
The P4SMA10CAHE3_A/H is bidirectional with no polarity marking and symmetric clamping in both directions, whereas the P4SMA10A is unidirectional with a cathode band and conducts only during positive transients. Both share identical VWM (10 V), VBR (11.1–12.3 V), and PPPM (400 W), but the P4SMA10CAHE3_A/H supports AC-coupled or floating lines, while the P4SMA10A requires correct orientation and is used in DC-biased rails. The HE3 suffix confirms AEC-Q101 qualification for both.
P4SMA10CAHE3_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:
- -
- Bidirectional Channels:
- 1
- 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)
P4SMA10CAHE3_A/H FAQ
1.How can I place an order for P4SMA10CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA10CAHE3_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 P4SMA10CAHE3_A/H reliable?
The price and inventory of P4SMA10CAHE3_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 P4SMA10CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA10CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA10CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA10CAHE3_A/H?
P4SMA10CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA10CAHE3_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 P4SMA10CAHE3_A/H?
For technical support, including P4SMA10CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA10CAHE3_A/H requirements.
6.How does Aetrix verify that P4SMA10CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA10CAHE3_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 P4SMA10CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA10CAHE3_A/H?
All P4SMA10CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA10CAHE3_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 P4SMA10CAHE3_A/H part is unused and in its original packaging.
Return procedure for P4SMA10CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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