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Vishay General Semiconductor - Diodes Division P6SMB7.5CAHM3_B/H
- Part No.:
- P6SMB7.5CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5CAHM3_B/H.pdf
- Description:
- 600W,7.5V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,532
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Product details
Overview
P6SMB7.5CAHM3_B/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 7.5 V standoff voltage (VWM), 11.3 V maximum clamping voltage (VC) at 53.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor protection, industrial I/O interfaces, and telecom line surge suppression.
For engineers reviewing the P6SMB7.5CAHM3_B/H datasheet, P6SMB7.5CAHM3_B/H pinout, P6SMB7.5CAHM3_B/H application, or P6SMB7.5CAHM3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, low thermal resistance (RθJL = 20 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping both positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the SMB package supports high surge current handling (53.1 A IPPM) with minimal incremental surge resistance.
Designed for repetitive surge events at 0.01% duty cycle, it maintains clamping performance across -65 °C to +150 °C junction temperature range. The 7.13–7.88 V breakdown voltage (VBR) at 10 mA test current and 0.061 %/°C temperature coefficient ensure predictable voltage threshold stability under thermal variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 6.40 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 7.13–7.88 V at 10 mA - Verified avalanche onset range; ensures reliable triggering during ESD or lightning-induced surges. |
| VC (Clamping) | 11.3 V at 53.1 A - Peak voltage seen by protected circuit during 10/1000 μs transient; determines downstream component stress level. |
| PPPM | 600 W - Peak pulse power dissipation capability with standard 10/1000 μs waveform; enables robust protection against IEC 61000-4-5 surges. |
| IPPM | 53.1 A - Maximum non-repetitive peak pulse current; defines surge current handling limit before degradation. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; enables effective heat transfer to PCB copper pads without external heatsink. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C peak reflow). Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; terminals interchangeable - enables clamping of ± transients without orientation constraints on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces requiring reliability over temperature and lifetime. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events on 50 Ω source impedance when mounted per recommended pad layout. |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage exposure to downstream ICs - critical for protecting 3.3 V or 5 V logic interfaces in industrial PLCs. |
| Fast response time (<1 ns) | Clamps transients before propagation into sensitive analog front-ends or microcontroller GPIOs, preserving signal integrity. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics for high-volume SMT lines. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN bus transceivers and LIN sensors from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy to ground. Use Value: Maintains signal integrity during 12 V system transients up to 100 V/100 ms while meeting AEC-Q101 qualification requirements. |
Use Scenario: Safeguarding RS-485 transceivers and analog input channels in programmable logic controllers against field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on differential data lines and supply rails, coordinated with upstream fuses. Use Value: Limits clamped voltage to 11.3 V, ensuring compatibility with 12 V-rated interface ICs and preventing latch-up in precision ADCs. |
| Telecom Line Surge Suppression | Consumer Power Adapter Input Stage |
Use Scenario: Secondary protection on DSL or Ethernet PHY lines exposed to induced lightning surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Fast-acting TVS placed after gas discharge tube (GDT) primary protection to handle residual fast-rising edges. Use Value: Sub-1 ns response captures high-frequency components missed by slower GDTs, reducing risk of PHY IC damage. |
Use Scenario: Input-stage transient suppression on AC-DC adapter primary-side rectifier outputs before bulk capacitor. IC Role / Device Role / Timing Role: Bidirectional clamp across DC bus to absorb switching spikes and ESD from user-accessible ports. Use Value: Withstands 600 W surges without degradation, extending adapter lifetime in regions with unstable grid voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5CA | Same VWM (6.4 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 150 °C/W). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without derating. | Select when board space is constrained and surge threat level is ≤ Level 2. |
| 1.5SMC7.5CA | Same VWM and VC, higher PPPM (1500 W), larger SMC package (DO-214AB), non-AEC-Q101 rated. | Supports higher surge repetition rates but lacks automotive qualification and has longer lead time. | Choose for industrial power supplies needing higher single-pulse margin where AEC-Q101 is not required. |
Compared with SMAJ7.5CA and 1.5SMC7.5CA, P6SMB7.5CAHM3_B/H uniquely balances 600 W surge capability, AEC-Q101 qualification, SMB footprint, and halogen-free compliance - making it optimal for space-constrained automotive and industrial designs requiring certified reliability.
Availability
P6SMB7.5CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface boards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB7.5CAHM3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robustness under repetitive surge stress and extended temperature operation.
FAQ
What does the "HM3_B/H" suffix mean in P6SMB7.5CAHM3_B/H?
The "HM3" denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification; "B" indicates AEC-Q101 qualification for this voltage grade (6.8 V to 220 V); "H" specifies 7" diameter tape-and-reel packaging (750 units per reel). This suffix confirms full automotive-grade compliance and standardized SMT handling for P6SMB7.5CAHM3_B/H.
Is P6SMB7.5CAHM3_B/H unidirectional or bidirectional?
P6SMB7.5CAHM3_B/H is a bidirectional TVS diode, as confirmed by the "CA" suffix and electrical specifications applying equally in both directions. Its symmetrical breakdown and clamping behavior eliminate polarity concerns during PCB layout - unlike unidirectional variants (e.g., P6SMB7.5A) which require cathode-band orientation.
What is the maximum clamping voltage for P6SMB7.5CAHM3_B/H under surge conditions?
The maximum clamping voltage (VC) for P6SMB7.5CAHM3_B/H is 11.3 V at 53.1 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88370, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuits during transient events.
Can P6SMB7.5CAHM3_B/H be used in place of P6SMB7.5A in existing designs?
No - P6SMB7.5CAHM3_B/H is bidirectional and AEC-Q101 qualified, whereas P6SMB7.5A is unidirectional and commercial-grade. Substituting requires verifying layout polarity, surge profile, and qualification requirements. P6SMB7.5CAHM3_B/H must be placed without orientation constraints, unlike the cathode-marked P6SMB7.5A.
What PCB pad layout is recommended for optimal thermal and surge performance of P6SMB7.5CAHM3_B/H?
Vishay specifies mounting P6SMB7.5CAHM3_B/H on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and 53.1 A IPPM. Smaller pads reduce thermal dissipation and surge current capacity - use the exact dimensions shown in the SMB (DO-214AA) outline drawing (Document 88370, page 5) for P6SMB7.5CAHM3_B/H.
P6SMB7.5CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB7.5CAHM3_B/H FAQ
1.How can I place an order for P6SMB7.5CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5CAHM3_B/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 P6SMB7.5CAHM3_B/H reliable?
The price and inventory of P6SMB7.5CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB7.5CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5CAHM3_B/H?
P6SMB7.5CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5CAHM3_B/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 P6SMB7.5CAHM3_B/H?
For technical support, including P6SMB7.5CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB7.5CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5CAHM3_B/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 P6SMB7.5CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB7.5CAHM3_B/H?
All P6SMB7.5CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5CAHM3_B/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 P6SMB7.5CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB7.5CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5CAHM3_B/H Tags
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