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Vishay General Semiconductor - Diodes Division P6SMB7.5AHM3/H
- Part No.:
- P6SMB7.5AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5AHM3/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,050
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Product details
Overview
P6SMB7.5AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 600 W peak pulse power (10/1000 μs), 7.13 V minimum breakdown voltage at 10 mA test current, 6.40 V stand-off voltage, and clamps to ≤11.3 V at 53.1 A peak pulse current - ideal for protecting automotive-grade sensor interfaces and microcontroller I/O lines.
For engineers reviewing the P6SMB7.5AHM3/H datasheet, P6SMB7.5AHM3/H pinout, P6SMB7.5AHM3/H application, or P6SMB7.5AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), low clamping ratio (VC/VBR ≈ 1.59), and MSL Level 1 moisture sensitivity rating for high-reliability reflow assembly.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging a glass-passivated silicon junction for stable avalanche behavior under repetitive surge conditions. Its thermal resistance (RθJA = 100 °C/W) and 150 °C maximum junction temperature support operation in automotive under-hood environments when mounted per recommended 0.2" × 0.2" copper pads.
The device delivers fast response time (<1 ps) and low incremental surge resistance, enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (10/1000 μs waveform). Its 0.061 %/°C temperature coefficient of VBR ensures predictable voltage clamping across industrial temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 6.40 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Min @ IT) | 7.13 V at 10 mA - Guaranteed avalanche initiation voltage; sets lower bound for transient clamping onset |
| VC @ IPPM | 11.3 V at 53.1 A - Clamped voltage during 600 W surge; determines maximum stress imposed on protected IC |
| PPPM | 600 W - Peak pulse power handling (10/1000 μs); defines robustness against common automotive load-dump and inductive-switching transients |
| IPPM | 53.1 A - Peak pulse current capability; directly relates to surge energy absorption (≈ 3.0 J for 10/1000 μs) |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive modules without derating at 85 °C ambient |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; supports standard SMT reflow without dry-pack or baking requirements |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to system ground or low-side return path; forms clamping loop with cathode during transient events |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., CAN_H, LIN, sensor supply); conducts surge current to ground when VLINE exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b, and ISO 16750-2 load-dump surges without degradation |
| Low clamping voltage (VC/VBR = 1.59) | Minimizes overvoltage stress on downstream 5 V or 3.3 V logic, reducing risk of latch-up or gate oxide damage |
| Glass passivated junction | Ensures long-term stability of VBR and leakage current under thermal cycling and humidity exposure |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture-related popcorning or delamination |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting analog and digital outputs of pressure, temperature, and position sensors in engine control units and battery management systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output line and chassis ground to clamp induced transients from nearby solenoid switching. Use Value: Prevents false readings and permanent damage to 12-bit ADC inputs and microcontroller GPIOs exposed to ISO 7637-2 Pulse 5a (load dump). |
Use Scenario: Safeguarding 24 V DC digital input channels on programmable logic controllers subjected to field-wiring inductive kickback. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input optocoupler terminals to limit voltage to <12 V during 100 V/100 ms transients. Use Value: Maintains functional safety integrity (IEC 61000-4-5 Level 3) while preserving input impedance and noise immunity of 5–30 V wide-range inputs. |
| Automotive LIN Bus Protection | Consumer Appliance Motor Driver Protection |
Use Scenario: Shielding LIN transceiver pins (LIN_H/LIN_BUS) in door modules and seat control units from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS tied between LIN bus line and ground, with cathode to bus, to suppress ±8 kV contact ESD per IEC 61000-4-2. Use Value: Ensures uninterrupted communication at 19.2 kbps without signal distortion or bit errors caused by clamping overshoot. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: TVS placed across motor terminals to absorb inductive energy during MOSFET turn-off, limiting voltage to <15 V. Use Value: Eliminates need for snubber RC networks, reducing BOM count and PCB area while maintaining UL 60730-1 compliance for motor control safety. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5AHE3/A | Same VWM (6.4 V), but lower PPPM (400 W) and higher VC (12.0 V at 33.3 A); SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients (e.g., IEC 61000-4-2 only); not rated for ISO 7637-2 Pulse 5a | Select when space-constrained layouts prioritize footprint over automotive surge robustness |
| 1.5SMC7.5A-HF | Same VWM/VBR, but 1.5 kW PPPM; larger SMC (DO-214AB) package; non-AEC-Q101; halogen-free but no HM3 suffix | Supports higher-energy load-dump events; requires larger pad layout and may exceed MSL Level 1 limits | Choose for industrial power supplies where AEC-Q101 is unnecessary and surge margin must exceed 600 W |
Compared with SMAJ7.5AHE3/A, P6SMB7.5AHM3/H delivers 50 % higher surge power handling and tighter clamping for automotive-grade reliability; versus 1.5SMC7.5A-HF, it offers AEC-Q101 validation and MSL Level 1 compatibility at the cost of 33 % lower peak power - making it optimal for space- and qualification-sensitive automotive modules.
Availability
P6SMB7.5AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC input conditioning, LIN bus interface hardening, and consumer appliance motor driver circuits requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P6SMB7.5AHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive qualification.
The P6SMB series targets high-reliability transient suppression in automotive and industrial environments, with design focus on AEC-Q101 compliance, robust surge handling, and seamless SMT integration for next-generation ECUs and smart sensors.
FAQ
What is the maximum clamping voltage of the P6SMB7.5AHM3/H under a 600 W surge?
The P6SMB7.5AHM3/H clamps to a maximum of 11.3 V at its rated peak pulse current of 53.1 A (10/1000 μs waveform), corresponding to 600 W peak pulse power. This value is guaranteed per the Vishay datasheet (Document Number: 88370, Rev. 09-Jan-2024) and reflects worst-case performance at TA = 25 °C with proper PCB thermal pads. The P6SMB7.5AHM3/H maintains this clamping performance across its qualified operating temperature range when mounted per recommended layout.
Is the P6SMB7.5AHM3/H AEC-Q101 qualified, and what does the 'HM3' suffix indicate?
Yes, the P6SMB7.5AHM3/H is AEC-Q101 qualified - confirmed by Vishay's ordering information table specifying '_HM3_B/H' for AEC-Q101 devices in the P6SMB series. The 'HM3' suffix denotes halogen-free, RoHS-compliant construction with whisker-resistant matte tin plating, meeting JESD 201 Class 2 requirements. This makes the P6SMB7.5AHM3/H suitable for automotive applications requiring both environmental compliance and stress-test validation.
How does the P6SMB7.5AHM3/H differ from bidirectional variants like P6SMB7.5CA?
The P6SMB7.5AHM3/H is unidirectional, with a cathode band marking and specified parameters (VWM, VBR, VC) for reverse-biased operation only; forward conduction follows standard diode behavior. In contrast, P6SMB7.5CA is bidirectional, offering symmetric clamping in both polarities - useful for AC lines or differential buses like RS-485. The P6SMB7.5AHM3/H is not interchangeable with P6SMB7.5CA without circuit redesign due to polarity and parameter asymmetry.
What is the thermal resistance and recommended PCB layout for optimal performance of the P6SMB7.5AHM3/H?
The P6SMB7.5AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in the Vishay datasheet. To achieve rated power dissipation and avoid thermal runaway during repetitive surges, designers must implement these minimum pad dimensions and ensure adequate copper area and via stitching to internal ground planes. The P6SMB7.5AHM3/H thermal performance degrades significantly if smaller pads or insufficient copper are used.
Can the P6SMB7.5AHM3/H be used in place of older P6SMB7.5A-E3 parts?
Yes, the P6SMB7.5AHM3/H is a direct replacement for P6SMB7.5A-E3 in terms of electrical specifications (VWM, VBR, VC, PPPM) and mechanical footprint (SMB/DO-214AA). The HM3 suffix adds halogen-free material content and AEC-Q101 qualification - enhancements that do not affect pin compatibility or soldering profile. The P6SMB7.5AHM3/H retains identical marking code '7V5A', polarity, and thermal characteristics, enabling drop-in upgrade in automotive and industrial designs.
P6SMB7.5AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, 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):
- 53.1A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
P6SMB7.5AHM3/H FAQ
1.How can I place an order for P6SMB7.5AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5AHM3/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 P6SMB7.5AHM3/H reliable?
The price and inventory of P6SMB7.5AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5AHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB7.5AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5AHM3/H?
P6SMB7.5AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5AHM3/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 P6SMB7.5AHM3/H?
For technical support, including P6SMB7.5AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5AHM3/H requirements.
6.How does Aetrix verify that P6SMB7.5AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5AHM3/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 P6SMB7.5AHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB7.5AHM3/H?
All P6SMB7.5AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5AHM3/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 P6SMB7.5AHM3/H part is unused and in its original packaging.
Return procedure for P6SMB7.5AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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