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Vishay General Semiconductor - Diodes Division P4SMA10AHM3_A/H
- Part No.:
- P4SMA10AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA10AHM3_A/H.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,236
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Product details
Overview
P4SMA10AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 10 V breakdown voltage (VBR = 9.5–10.5 V at 1.0 mA), 14.5 V maximum clamping voltage at 27.6 A peak pulse current, and 400 W peak pulse power (10/1000 µs waveform). It provides robust ESD and surge protection for low-voltage signal lines in automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the P4SMA10AHM3_A/H datasheet, P4SMA10AHM3_A/H pinout, P4SMA10AHM3_A/H application, or P4SMA10AHM3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 8.55 V stand-off voltage (VWM), <1.0 µA reverse leakage at VWM, ±150 °C operating junction temperature, and halogen-free RoHS-compliant construction with M3 suffix.
Technical Context
The P4SMA10AHM3_A/H operates as a unidirectional avalanche-clamping TVS diode, triggered when reverse voltage exceeds its 9.5–10.5 V breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance and fast response (<1 ns), while the SMA package supports automated SMT placement and meets J-STD-020 MSL Level 1 (260 °C peak reflow).
It delivers 400 W peak pulse power under 10/1000 µs waveform at TA = 25 °C, derating to 300 W above 91 V, with thermal resistance RθJA = 120 °C/W and RθJL = 30 °C/W. The cathode band marking identifies polarity, and it is rated for repetitive surge duty cycle ≤ 0.01 %.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.5 V / 10.5 V at 1.0 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 8.55 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 14.5 V at 27.6 A - clamped voltage during 400 W transient, limiting downstream IC stress |
| IPPM | 27.6 A - peak surge current capability under standardized 10/1000 µs waveform |
| Power rating | 400 W (10/1000 µs), 3.3 W steady-state - supports both transient suppression and limited continuous dissipation |
| TJ range | −65 °C to +150 °C - enables operation in under-hood automotive and industrial environments |
| Leakage ID | <1.0 µA at VWM - minimizes standby power loss and avoids false triggering in high-impedance circuits |
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 conduction terminal | Connected to circuit ground or lower-potential node in unidirectional clamp configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line; conducts when reverse voltage exceeds VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for modern automotive and industrial PCB assembly |
| 400 W peak pulse power (10/1000 µs) | Handles IEC 61000-4-5 Level 4 surges (4 kV line-to-line, 2 kV line-to-ground) without failure |
| Low incremental surge resistance | Ensures minimal voltage overshoot during fast transients, improving protection margin for 3.3 V/5 V logic |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between signal line and chassis ground, activated within nanoseconds of overvoltage event. Use Value: Limits transient voltage to ≤14.5 V, safeguarding 12 V-tolerant automotive ICs while maintaining signal integrity during normal operation at 8.55 V stand-off. |
Use Scenario: Shielding 24 V digital input channels on programmable logic controllers from field-wiring induced surges and electrostatic discharge in factory automation systems. IC Role / Device Role / Timing Role: Standoff protector on input front-end, conducting only during fault conditions to divert energy away from optocoupler or Schmitt trigger input stages. Use Value: Withstands repeated 400 W pulses without degradation, enabling long-term reliability in harsh industrial environments with frequent EMI exposure. |
| Consumer IoT Power Rail Clamp | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding USB-C VBUS and auxiliary signal lines in smart home hubs against accidental 12 V adapter misconnection and ESD events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5 V/9 V power rails, coordinated with upstream fuse and downstream LDO for layered protection. Use Value: Sub-1 µA leakage at 8.55 V prevents battery drain in always-on devices; fast response preserves data integrity during hot-plug events. |
Use Scenario: Front-end transient suppression on Ethernet PHY interface lines and auxiliary control signals in telecom base station line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS device mounted adjacent to RJ45 connector, clamping common-mode transients before they reach magnetics or PHY IC. Use Value: 14.5 V clamping voltage ensures compatibility with 3.3 V Ethernet PHYs; SMA footprint allows dense layout without compromising creepage/clearance. |
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 VBR range (9.5–10.5 V), identical SMA package, but rated for 400 W with higher IPPM (32.5 A) and slightly higher VC (16.0 V); not AEC-Q101 qualified | Targeted at commercial/industrial use; lacks automotive qualification and halogen-free certification | Select SMAJ10A for cost-sensitive non-automotive designs where AEC-Q101 is not required and higher clamping voltage is acceptable. |
| 1.5SMC10A | Higher power rating (1500 W), larger SMC (DO-214AB) package, same VBR/VWM; RoHS-compliant but not AEC-Q101 qualified or halogen-free | Suitable for high-energy surge environments (e.g., AC mains input), but incompatible with space-constrained layouts requiring SMA footprint | Choose 1.5SMC10A when surge energy exceeds 400 W capability and board area permits larger SMC package. |
Compared with SMAJ10A and 1.5SMC10A, P4SMA10AHM3_A/H uniquely combines AEC-Q101 qualification, halogen-free construction, and SMA footprint-making it the only drop-in solution for automotive signal-line protection where regulatory compliance and miniaturization are mandatory.
Availability
P4SMA10AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, and consumer IoT power rail protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for P4SMA10AHM3_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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA series is designed for surface-mount transient voltage suppression in automotive, industrial, and communications systems-delivering high-power surge handling in compact, qualified packages for mission-critical signal integrity.
FAQ
What is the exact breakdown voltage range for P4SMA10AHM3_A/H?
The P4SMA10AHM3_A/H has a guaranteed breakdown voltage (VBR) range of 9.5 V to 10.5 V at a test current of 1.0 mA, as specified in the Vishay P4SMA Series datasheet (Document Number: 88367, Rev. 09-Jan-2024). This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage design margins in safety-critical applications.
Is P4SMA10AHM3_A/H suitable for automotive applications?
Yes, P4SMA10AHM3_A/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It is explicitly listed in Vishay's ordering table for AEC-Q101 qualified parts (note "_A is available for P4SMA6.8(C)A to P4SMA220(C)A, AEC-Q101 qualified"), making it appropriate for under-hood and body-control module deployments.
What does the "HM3_A/H" suffix mean in P4SMA10AHM3_A/H?
In P4SMA10AHM3_A/H, "HM3" denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction; "A" indicates the revision level of the AEC-Q101 qualification; and "H" specifies packaging in 7-inch diameter plastic tape and reel (1800 units per reel), per Vishay's ordering information table on page 3 of document 88367.
What is the maximum clamping voltage of P4SMA10AHM3_A/H under surge conditions?
The P4SMA10AHM3_A/H exhibits a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current (IPPM) of 27.6 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during transient events.
Does P4SMA10AHM3_A/H have polarity marking, and how is it identified?
Yes, P4SMA10AHM3_A/H is a unidirectional TVS diode with polarity marked by a visible cathode band on the SMA (DO-214AC) package body. As stated in the mechanical data section, "for unidirectional types the band denotes cathode end", confirming that the banded end connects to the protected signal line and the opposite end (anode) connects to ground.
P4SMA10AHM3_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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA10AHM3_A/H FAQ
1.How can I place an order for P4SMA10AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA10AHM3_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 P4SMA10AHM3_A/H reliable?
The price and inventory of P4SMA10AHM3_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 P4SMA10AHM3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA10AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA10AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA10AHM3_A/H?
P4SMA10AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA10AHM3_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 P4SMA10AHM3_A/H?
For technical support, including P4SMA10AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA10AHM3_A/H requirements.
6.How does Aetrix verify that P4SMA10AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA10AHM3_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 P4SMA10AHM3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA10AHM3_A/H?
All P4SMA10AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA10AHM3_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 P4SMA10AHM3_A/H part is unused and in its original packaging.
Return procedure for P4SMA10AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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