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Vishay General Semiconductor - Diodes Division P4SMA7.5AHM3/H
- Part No.:
- P4SMA7.5AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA7.5AHM3/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,214
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Product details
Overview
P4SMA7.5AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features 7.13 V minimum breakdown voltage (VBR), 6.40 V maximum standoff voltage (VWM), 11.3 V clamping voltage at 35.4 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P4SMA7.5AHM3/H datasheet, P4SMA7.5AHM3/H pinout, P4SMA7.5AHM3/H application, or P4SMA7.5AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), low incremental surge resistance, fast response time, and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
The P4SMA7.5AHM3/H operates as a unidirectional clamping device, leveraging an avalanche breakdown mechanism to limit transient overvoltages before they reach downstream circuitry. Its glass-passivated junction ensures stable VBR tolerance (±5% typical) and long-term reliability under repetitive surge stress.
Designed for operation across -65 °C to +150 °C junction temperature range, it delivers 3.3 W steady-state power dissipation and supports 40 A non-repetitive forward surge current (IFSM) - enabling robust protection in 12 V automotive subsystems and 5 V/3.3 V logic interfaces where space-constrained SMA packaging is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 7.13 V - Ensures reliable conduction onset above normal operating voltage of 6.40 V circuits |
| VWM | 6.40 V - Maximum continuous reverse working voltage without leakage exceeding 500 µA |
| VC @ IPPM | 11.3 V - Clamped voltage during 35.4 A 10/1000 µs transient, limiting stress on protected ICs |
| PPPM | 400 W - Peak transient energy absorption capability under standardized surge waveform |
| IPPM | 35.4 A - Peak pulse current handled without degradation when mounted on 5.0 mm × 5.0 mm copper pads |
| TJ max | +150 °C - Enables use in under-hood automotive environments and high-ambient industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
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 / transient return path | Connected to ground or low-impedance reference plane; forms cathode-to-anode clamping path |
| Cathode | Transient voltage sensing and clamping node | Marked with band; connects to protected line (e.g., 12 V rail or sensor output); conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics per stress test requirements including HTGB, TCT, and UHAST |
| Halogen-free & RoHS-compliant | Meets environmental compliance for global automotive and industrial OEM supply chains |
| 400 W peak pulse power (10/1000 µs) | Handles ISO 7637-2 Pulse 1/2a/5a surges without failure in 12 V vehicle networks |
| Glass passivated junction | Provides stable VBR drift < ±5% over lifetime and improved moisture resistance vs. epoxy-passivated alternatives |
| MSL Level 1 (260 °C reflow) | Compatible with standard lead-free SMT reflow profiles without preconditioning or baking |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects microcontroller GPIOs and CAN transceiver power rails from load-dump and inductive switching transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between 12 V supply and local LDO input or directly across MCU VDD/GND pins. Use Value: Limits transient voltage to ≤11.3 V during 35.4 A surges, preventing latch-up or gate oxide damage in AEC-Q100 qualified MCUs. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Standoff voltage (6.40 V) allows normal 24 V logic detection while clamping >40 V transients to safe levels. Use Value: Enables direct interface with industrial sensors without external series impedance, reducing BOM count and board area. |
| Consumer Appliance Motor Drive Board | Telecom Power Supply Input Stage |
Use Scenario: Suppresses commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to 12–24 V DC bus. IC Role / Device Role / Timing Role: Placed across motor terminals or between H-bridge high-side FET source and ground to absorb inductive kickback. Use Value: Withstands 40 A single-half-sine surge (IFSM), eliminating need for additional snubbers in cost-sensitive white-goods designs. |
Use Scenario: Guards AC/DC adapter primary-side rectifier output and secondary-side 5 V/12 V rails against lightning-induced surges and AC line transients. IC Role / Device Role / Timing Role: Mounted at DC input connector to shunt transient energy before reaching downstream DC-DC converters and PMICs. Use Value: 400 W peak power rating meets IEC 61000-4-5 Level 3 (1 kV/2 kV) surge immunity requirements for telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | Same VWM (6.4 V), identical SMA package, but rated for 400 W with 8.3 ms half-sine surge (not 10/1000 µs); lower IPPM (32.3 A) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when automotive qualification is unnecessary and cost is prioritized over standardized surge waveform compliance |
| 1.5SMC7.5A | Higher power rating (1500 W), DO-214AB package (larger footprint), same VBR range; no AEC-Q101 or HM3 halogen-free certification | Requires PCB layout change; suited for higher-energy industrial mains protection | Choose only if system-level surge tests exceed 400 W and board space permits larger SMC package |
Compared with SMAJ7.5A and 1.5SMC7.5A, P4SMA7.5AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and precise 10/1000 µs waveform compliance in the compact SMA footprint - making it the preferred choice for space-constrained automotive and industrial designs requiring traceable compliance.
Availability
P4SMA7.5AHM3/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, consumer appliance motor drives, and telecom power supply input protection requiring stable component supply with full AEC-Q101 documentation and halogen-free material declarations.
Supply support for P4SMA7.5AHM3/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The P4SMA Series was developed to deliver high-energy transient suppression in compact surface-mount packages for automotive, industrial, and consumer applications - balancing clamping precision, surge robustness, and manufacturability.
FAQ
What is the maximum clamping voltage of the P4SMA7.5AHM3/H under a 10/1000 µs surge?
The P4SMA7.5AHM3/H has a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 35.4 A using the 10/1000 µs waveform. This value is measured at TA = 25 °C with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards, ensuring predictable overvoltage limiting for protected ICs in the P4SMA7.5AHM3/H's target applications.
Is the P4SMA7.5AHM3/H suitable for automotive applications?
Yes, the P4SMA7.5AHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets stress test requirements including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing - making it appropriate for engine control units, body control modules, and infotainment power supplies where P4SMA7.5AHM3/H's 150 °C TJ max and 400 W surge rating are critical.
What does the "HM3" suffix indicate in P4SMA7.5AHM3/H?
The "HM3" suffix in P4SMA7.5AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade E3/M3 versions and confirms compliance with automotive material restrictions, JESD 201 Class 2 whisker resistance, and MSL Level 1 reflow capability - all verified per Vishay's qualification report for the P4SMA7.5AHM3/H family.
How does the P4SMA7.5AHM3/H differ from the P4SMA7.5A-E3/61?
The P4SMA7.5AHM3/H differs from P4SMA7.5A-E3/61 in three key ways: it is AEC-Q101 qualified (vs. commercial grade), halogen-free (vs. standard RoHS), and supplied in 7" tape-and-reel (H) rather than 7" tape-and-reel with different packaging code (61). Electrically and thermally, both share identical VBR, VWM, VC, and PPPM specs - but only P4SMA7.5AHM3/H is approved for automotive production use.
What is the thermal resistance from junction to ambient for the P4SMA7.5AHM3/H?
The P4SMA7.5AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on standard PCB copper pads per JEDEC 51-3 guidelines. This value assumes minimal copper area; actual RθJA improves significantly with larger thermal pads or internal ground planes - a key consideration when designing for continuous power dissipation up to 3.3 W in the P4SMA7.5AHM3/H's operational envelope.
P4SMA7.5AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 35.4A
- 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)
P4SMA7.5AHM3/H FAQ
1.How can I place an order for P4SMA7.5AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA7.5AHM3/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 P4SMA7.5AHM3/H reliable?
The price and inventory of P4SMA7.5AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA7.5AHM3/H is usually 5 days.
3.What payment methods are accepted for P4SMA7.5AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA7.5AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA7.5AHM3/H?
P4SMA7.5AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA7.5AHM3/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 P4SMA7.5AHM3/H?
For technical support, including P4SMA7.5AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA7.5AHM3/H requirements.
6.How does Aetrix verify that P4SMA7.5AHM3/H is sourced from the original manufacturer or authorized distributors?
All P4SMA7.5AHM3/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 P4SMA7.5AHM3/H meets industry standards.
7.What is the process for return or replacement of P4SMA7.5AHM3/H?
All P4SMA7.5AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA7.5AHM3/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 P4SMA7.5AHM3/H part is unused and in its original packaging.
Return procedure for P4SMA7.5AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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