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Vishay General Semiconductor - Diodes Division P6SMB75AHM3_B/I
- Part No.:
- P6SMB75AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75AHM3_B/I.pdf
- Description:
- 600W,75V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,696
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Product details
Overview
P6SMB75AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on power and signal lines. It features a 75 V breakdown voltage (VBR min/max = 71.3–78.8 V at 1 mA), 64.1 V stand-off voltage (VWM), 103 V maximum clamping voltage (VC) at 5.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB75AHM3_B/I datasheet, P6SMB75AHM3_B/I pinout, P6SMB75AHM3_B/I application, or P6SMB75AHM3_B/I equivalent, key selection criteria include its AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, SMB (DO-214AA) package, unidirectional polarity with cathode band marking, and thermal resistance of 100 °C/W (junction-to-ambient).
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuit nodes, conducting only when reverse voltage exceeds VWM (64.1 V) and entering avalanche breakdown above VBR (71.3–78.8 V). Its low incremental surge resistance and fast response time ensure effective suppression of ESD and inductive switching transients.
The device is rated for 100 A non-repetitive forward surge current (IFSM), supports continuous power dissipation of 5.0 W at 50 °C on infinite heatsink, and maintains operation across -65 °C to +150 °C junction temperature range - validated per JESD22-B102 solderability and J-STD-020 MSL Level 1 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V at 1 mA - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 64.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 103 V at 5.8 A - clamped voltage during 600 W transient, limiting stress on downstream components |
| PPPM | 600 W with 10/1000 μs waveform - peak transient energy handling capability under standardized surge test |
| IFSM | 100 A (8.3 ms half-sine) - surge current robustness for inductive load switching events |
| TJ max | +150 °C - enables use in under-hood automotive and high-temperature industrial environments |
| RθJA | 100 °C/W - thermal performance baseline for PCB pad layout design (0.2" × 0.2" copper pads) |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse battery protection) |
| Cathode | Avalanche clamping terminal | Marked with band; connected to higher-potential side; initiates clamping when reverse voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without degradation in automotive ECUs |
| AEC-Q101 qualified (HM3) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for Tier 1 automotive suppliers and industrial OEMs |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow processes without moisture sensitivity concerns |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during transient events, reducing risk of downstream component failure |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 64.1 V. Use Value: Limits voltage to ≤103 V during 600 W transients, preventing damage to microcontrollers and CAN transceivers. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Parallel-connected clamping device on signal path to shunt transient energy before reaching ADC input. Use Value: Sub-100 ns response ensures clamping occurs before sensitive front-end amplifiers saturate or latch up. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5–24 V output rail to absorb repetitive switching transients. Use Value: 5.0 W steady-state power rating supports continuous operation under elevated ambient temperatures. |
Use Scenario: Surge protection on -48 V DC telecom power feeds exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Unidirectional suppressor referenced to system ground to clamp negative-going transients. Use Value: 150 °C max junction temperature enables deployment in sealed outdoor cabinets without active cooling. |
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 SMB package, 75 V VBR, but rated for 400 W PPPM and not AEC-Q101 qualified | Limited to commercial-grade consumer/industrial use; lacks automotive reliability validation | Select when cost sensitivity outweighs automotive qualification requirements |
| 1.5SMC75AHE3_A/H | Higher-power SMC package (1500 W PPPM), same 75 V VBR, AEC-Q101 qualified, but larger footprint | Used where higher surge margin is required and PCB space allows SMC (DO-214AB) footprint | Choose for enhanced surge immunity in harsher environments, accepting larger board area |
Compared with SMAJ75A-E3/5B, P6SMB75AHM3_B/I delivers 50 % higher peak pulse power and automotive qualification; versus 1.5SMC75AHE3_A/H, it offers identical clamping performance in a 30 % smaller SMB footprint - ideal for space-constrained automotive modules.
Availability
P6SMB75AHM3_B/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply, AEC-Q101 compliance, and halogen-free manufacturing.
Supply support for P6SMB75AHM3_B/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for robust clamping, low leakage, and seamless integration into automated SMT assembly lines.
FAQ
What is the clamping voltage of P6SMB75AHM3_B/I at its rated peak pulse current?
The P6SMB75AHM3_B/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 represents the upper limit of voltage seen by protected circuitry during a full-rated transient event, ensuring downstream components remain within safe operating limits. The clamping behavior is consistent across the device's qualified temperature range (-65 °C to +150 °C).
Is P6SMB75AHM3_B/I suitable for automotive applications?
Yes, P6SMB75AHM3_B/I is AEC-Q101 qualified, as indicated by the "HM3" suffix (halogen-free, RoHS-compliant, and automotive-grade). It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification per JEDEC standards. The device is explicitly recommended for engine control units, body electronics, and ADAS power domains where transient immunity and long-term reliability are critical.
What does the "_B/I" suffix mean in P6SMB75AHM3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB75A variant (applicable to devices from P6SMB6.8A through P6SMB220A), while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This format supports high-volume automated pick-and-place assembly and aligns with Vishay's ordering nomenclature for automotive-grade, halogen-free TVS diodes.
How does the thermal resistance of P6SMB75AHM3_B/I affect PCB layout?
P6SMB75AHM3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, measured on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under sustained power dissipation, designers must provide adequate copper area and consider airflow or adjacent heat sources. Reducing pad size or omitting thermal vias increases RθJA, potentially exceeding the +150 °C TJ max during repeated transients.
Can P6SMB75AHM3_B/I be used in bidirectional configurations?
No, P6SMB75AHM3_B/I is a unidirectional TVS diode, as confirmed by its part number ending in "A" (not "CA") and explicit designation in Vishay's ordering table. Bidirectional variants use the "CA" suffix (e.g., P6SMB75CA). Using this unidirectional device in a bidirectional application would result in forward conduction during negative transients, potentially causing failure or incorrect clamping behavior.
P6SMB75AHM3_B/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:
- Active
- 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_B/I FAQ
1.How can I place an order for P6SMB75AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75AHM3_B/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_B/I reliable?
The price and inventory of P6SMB75AHM3_B/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_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB75AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75AHM3_B/I?
P6SMB75AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75AHM3_B/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_B/I?
For technical support, including P6SMB75AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75AHM3_B/I requirements.
6.How does Aetrix verify that P6SMB75AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB75AHM3_B/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_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB75AHM3_B/I?
All P6SMB75AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75AHM3_B/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_B/I part is unused and in its original packaging.
Return procedure for P6SMB75AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB75AHM3_B/I Tags
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