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Vishay General Semiconductor - Diodes Division P6SMB75AHM3/I
- Part No.:
- P6SMB75AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75AHM3/I.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,629
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Product details
Overview
P6SMB75AHM3/I 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 a 71.3 V minimum breakdown voltage (VBR), 64.1 V standoff voltage (VWM), 103 V maximum clamping voltage (VC) at 5.8 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB75AHM3/I datasheet, P6SMB75AHM3/I pinout, P6SMB75AHM3/I application, or P6SMB75AHM3/I equivalent, this device is selected for robust overvoltage protection where low-profile SMT placement, AEC-Q101 qualification (via HM3 suffix), and stable clamping under repetitive surge conditions are required.
Technical Context
The P6SMB75AHM3/I operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its VBR threshold (71.3–78.8 V), with cathode-band polarity marking. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1 ns), enabling suppression of ESD and inductive switching spikes before sensitive circuitry is damaged.
Thermally, it delivers 5.0 W steady-state power dissipation at 50 °C ambient and supports 100 A non-repetitive forward surge (8.3 ms half-sine), while maintaining 150 °C max junction temperature. The SMB package provides 100 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 64.1 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping onset |
| VBR (Breakdown) | 71.3–78.8 V at 1 mA - Avalanche conduction initiates within this range, ensuring predictable turn-on during transients |
| VC (Clamping) | 103 V at 5.8 A (10/1000 μs) - Limits downstream voltage to ≤103 V during 600 W surge, protecting 75 V-rated components |
| PPPM | 600 W - Peak transient energy handling capacity with standardized 10/1000 μs waveform; validated per Fig. 1 |
| IPPM | 5.8 A - Peak pulse current corresponding to VC; determines minimum trace width and PCB copper area needed |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments |
| Package | SMB (DO-214AA) - Low-profile SMT package (4.57 mm × 3.94 mm × 2.20 mm), compatible with automated pick-and-place |
Pinout & Package
SMB (DO-214AA) surface-mount package with matte tin-plated leads; cathode indicated by band on one end; anode on opposite end. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line (e.g., +12 V rail); conducts surge current to ground when VREV > VBR |
| Anode (unmarked end) | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for ADAS power rails |
| 600 W peak pulse power (10/1000 μs) | Withstands repeated lightning-induced surges or load-dump transients without degradation in industrial motor drives |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and <1.0 μA leakage at VWM, minimizing standby power loss in battery systems |
| Low incremental surge resistance | Enables tight clamping (VC/IPPM = 17.8 Ω) - reduces voltage overshoot across protected ICs during fast transients |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without moisture sensitivity concerns or baking requirements |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protects 75 V-rated DC-DC converter inputs against load dump transients up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp voltage spikes before they reach controller ICs. Use Value: Clamps to 103 V at 5.8 A, limiting stress on 80 V MOSFETs and preventing latch-up in PMICs during 12 V system load dump. |
Use Scenario: Shields LIN bus transceivers and microcontroller I/O pins from ESD and coupled noise in door module PCBs. IC Role / Device Role / Timing Role: Localized TVS on each protected signal line, leveraging low capacitance and fast response to preserve signal integrity. Use Value: Sub-1 ns response and <1.0 μA leakage ensure no impact on LIN timing or quiescent current, while meeting ISO 10605 ESD immunity. |
| Telecom AC/DC Front-End | Consumer Appliance Motor Drive |
Use Scenario: Safeguards rectified AC line inputs in PoE-powered switches against surges from external cabling or lightning induction. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk capacitor input, coordinated with MOV and fuse for staged protection. Use Value: 600 W rating and 103 V clamping allow coordination with upstream 140 V MOVs, reducing let-through energy to downstream bridge rectifiers. |
Use Scenario: Protects gate drivers and sense resistors in BLDC motor inverters from inductive kickback during PWM switching. IC Role / Device Role / Timing Role: Placed across motor phase outputs to absorb flyback energy from winding inductance. Use Value: 100 A IFSM rating handles repetitive commutation spikes; SMB footprint fits tight layout constraints near gate driver ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75A-E3/5B | Same VWM (64.1 V), identical SMB package, but lower PPPM (400 W) and higher VC (121 V at 3.3 A) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance | Select P6SMB75AHM3/I when 600 W surge handling and tighter clamping (103 V vs. 121 V) are required for automotive or industrial robustness |
| 1.5SMC75A | Higher package thermal resistance (RθJA = 125 °C/W vs. 100 °C/W), same VBR range but SMC (DO-214AB) package (larger footprint) | Requires more PCB area; less suitable for dense layouts or automated placement with tight pitch | Choose P6SMB75AHM3/I for space-constrained designs needing AEC-Q101 qualification and optimized thermal performance in SMB form factor |
Compared with SMAJ75A-E3/5B and 1.5SMC75A, the P6SMB75AHM3/I delivers superior surge robustness (600 W), lower clamping voltage (103 V), and automotive qualification in the smallest standard SMT TVS package - making it optimal for high-reliability, space-limited overvoltage protection.
Availability
P6SMB75AHM3/I is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom front-ends, and consumer appliance motor drives requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for P6SMB75AHM3/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets board-level transient protection in automotive, industrial, and telecom systems, engineered for high surge immunity, low-profile SMT compatibility, and AEC-Q101 qualification where long-term field reliability is critical.
FAQ
What is the clamping voltage of the P6SMB75AHM3/I at its rated peak pulse current?
The P6SMB75AHM3/I has a maximum clamping voltage (VC) of 103 V at 5.8 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during a 600 W transient event. The P6SMB75AHM3/I maintains this clamping performance across its specified operating temperature range.
Is the P6SMB75AHM3/I suitable for automotive applications?
Yes, the P6SMB75AHM3/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix indicating halogen-free, RoHS-compliant construction with automotive-grade reliability testing. It meets requirements for temperature cycling, high-temperature reverse bias, and surge endurance - making the P6SMB75AHM3/I appropriate for under-hood and body electronics such as BCMs and ADAS power domains.
What does the "HM3" suffix mean in P6SMB75AHM3/I?
The "HM3" suffix in P6SMB75AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification, and the "I" indicates packaging in 13-inch tape-and-reel (3200 units per reel). This distinguishes it from commercial-grade "M3" variants and confirms that the P6SMB75AHM3/I meets automotive reliability standards without compromising SMT process compatibility.
How does the P6SMB75AHM3/I compare to bidirectional TVS diodes in the same series?
The P6SMB75AHM3/I is unidirectional, meaning it protects only against reverse-polarity transients on a positive rail, with polarity marked by a cathode band. Bidirectional variants (e.g., P6SMB75CA) suppress surges in both directions and lack polarity marking. The P6SMB75AHM3/I offers lower leakage and is preferred for DC power line protection, whereas bidirectional types suit AC or differential signal lines like RS-485.
What PCB layout considerations apply to the P6SMB75AHM3/I for optimal surge performance?
For rated 600 W performance, the P6SMB75AHM3/I requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, per Vishay's mechanical data. Minimizing trace inductance between the P6SMB75AHM3/I and protected node - especially the ground path - is critical to avoid voltage overshoot. Thermal relief should be avoided on pads to maintain low RθJL (20 °C/W).
P6SMB75AHM3/I 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):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
P6SMB75AHM3/I FAQ
1.How can I place an order for P6SMB75AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75AHM3/I 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 P6SMB75AHM3/I reliable?
The price and inventory of P6SMB75AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB75AHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB75AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75AHM3/I?
P6SMB75AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75AHM3/I 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 P6SMB75AHM3/I?
For technical support, including P6SMB75AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75AHM3/I requirements.
6.How does Aetrix verify that P6SMB75AHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB75AHM3/I 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 P6SMB75AHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB75AHM3/I?
All P6SMB75AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75AHM3/I, 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 P6SMB75AHM3/I part is unused and in its original packaging.
Return procedure for P6SMB75AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB75AHM3/I Tags
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