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Vishay General Semiconductor - Diodes Division P6SMB7.5CAHM3/H
- Part No.:
- P6SMB7.5CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5CAHM3/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,323
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Product details
Overview
P6SMB7.5CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 7.5 V standoff voltage (VWM), 11.3 V maximum clamping voltage (VC) at 53.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform), commonly deployed to protect sensor interfaces and low-voltage I/O in automotive and industrial control systems.
For engineers reviewing the P6SMB7.5CAHM3/H datasheet, P6SMB7.5CAHM3/H pinout, P6SMB7.5CAHM3/H application, or P6SMB7.5CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 μA leakage at 6.4 V), but triggers into low-impedance conduction when reverse (or forward, in bidirectional mode) voltage exceeds its breakdown threshold (7.13–7.88 V at 10 mA). Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns).
The P6SMB7.5CAHM3/H is rated for repetitive 10/1000 μs surges at 0.01% duty cycle, with derating above 25 °C per Fig. 2. Its MSL Level 1 rating (260 °C peak reflow) and JESD201 Class 2 whisker resistance support robust manufacturing reliability in high-volume automotive-grade production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.40 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping onset. |
| VBR (Breakdown Voltage) | 7.13–7.88 V at 10 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 11.3 V at 53.1 A IPPM - Peak voltage seen by protected circuit during worst-case 600 W surge; critical for IC-level survivability. |
| PPPM | 600 W (10/1000 μs) - Surge energy handling capacity; supports IEC 61000-4-5 Level 4 (4 kV) compliance with proper layout. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; requires minimum 0.2" × 0.2" copper pads for rated power dissipation. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated terminals. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode band not marked (bidirectional type).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional clamping | Connected to line being protected; forms symmetrical clamping path with cathode during either polarity surge. |
| Cathode | Current exit terminal in forward bias; common node in bidirectional clamping | Connected to line being protected; enables equal clamping voltage magnitude for positive and negative transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 600 W peak pulse power (10/1000 μs) | Supports robust immunity against lightning-induced surges and inductive switching spikes in industrial I/O. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain, body electronics, and ADAS modules requiring zero-defect reliability. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns response), enhancing system-level ESD resilience. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and enables standard lead-free reflow without baking or special handling. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., temperature, pressure) from load-dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at connector entry point to clamp transients before reaching MCU ADC or transceiver. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V sensor signal chains while maintaining <1 μA leakage at 6.4 V standby. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional clamping element across input terminals to suppress ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Delivers 11.3 V clamping at 53.1 A without degradation after repeated 600 W surges, ensuring long-term field reliability. |
| Consumer USB Port Protection | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-level transient suppression on USB 2.0 D+/D− lines downstream of primary ESD arrays. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) bidirectional clamp limiting voltage excursions during contact discharge events. Use Value: Maintains signal integrity up to 480 Mbps while surviving 8 kV HBM ESD per AEC-Q101 stress profile. |
Use Scenario: Front-end protection of Ethernet PHY or xDSL line drivers against induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage shunt device absorbing bulk surge energy before secondary TVS or GDT stages. Use Value: Handles 600 W peak power with 100 °C/W thermal resistance, enabling compact PCB layout without heatsinking. |
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), VC (11.3 V), and PPPM (400 W); smaller SMA package (lower IPC footprint, higher RθJA = 150 °C/W) | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for automotive under-hood due to lower power rating | Select when board space is constrained and surge threat level is ≤400 W; verify thermal margin with reduced copper area. |
| 1.5SMC7.5CA | Same VWM/VC specs but higher PPPM (1500 W); larger SMC package (7.11 mm × 6.22 mm), RθJA = 60 °C/W | Overqualified for 600 W needs; adds cost and PCB area where P6SMB7.5CAHM3/H meets all requirements | Choose only if future design scalability to >1 kW surges is required; otherwise P6SMB7.5CAHM3/H offers optimal size-power balance. |
Compared with SMAJ7.5CA and 1.5SMC7.5CA, the P6SMB7.5CAHM3/H delivers the precise 600 W surge rating in the smallest qualified automotive package (SMB), with verified AEC-Q101 compliance and halogen-free construction-making it the optimal choice for space-constrained, high-reliability 12 V system nodes.
Availability
P6SMB7.5CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, consumer USB interface protection, and telecom line card surge suppression requiring stable component supply and full traceability.
Supply support for P6SMB7.5CAHM3/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 automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications equipment, engineered to meet stringent AEC-Q101, RoHS, and UL 94 V-0 requirements while supporting automated SMT assembly.
FAQ
What does the "HM3" suffix indicate in P6SMB7.5CAHM3/H?
The HM3 suffix in P6SMB7.5CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms the device meets automotive reliability standards-including HTOL, temperature cycling, and ESD testing-as well as environmental compliance for lead-free manufacturing. This makes P6SMB7.5CAHM3/H suitable for safety-critical vehicle subsystems where both performance and regulatory adherence are mandatory.
Is P6SMB7.5CAHM3/H unidirectional or bidirectional?
P6SMB7.5CAHM3/H is a bidirectional transient voltage suppressor, as confirmed by the "CA" suffix and absence of cathode marking. It provides symmetrical clamping for both positive and negative voltage transients, making it ideal for protecting AC-coupled lines, differential buses (e.g., CAN, LIN), or floating sensor outputs where polarity cannot be assumed. Its VBR and VC values apply identically in both directions.
What is the maximum clamping voltage of P6SMB7.5CAHM3/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB7.5CAHM3/H is 11.3 V at 53.1 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value represents the highest voltage the protected circuit will experience during a full 600 W transient event. Engineers use this parameter to verify that downstream ICs-such as 3.3 V or 5 V microcontrollers-remain within absolute maximum ratings during surge exposure.
Can P6SMB7.5CAHM3/H replace P6SMB7.5A in an existing design?
No-P6SMB7.5CAHM3/H is bidirectional, while P6SMB7.5A is unidirectional. Substituting them without circuit review risks improper clamping during negative transients or forward conduction issues. The "CA" vs. "A" suffix defines fundamental device polarity. If bidirectional protection is required, P6SMB7.5CAHM3/H is appropriate; for unidirectional use, P6SMB7.5AHM3/H (with "AHM3/H" suffix) must be selected instead.
What PCB layout guidance applies to P6SMB7.5CAHM3/H for optimal thermal and electrical performance?
For optimal performance, mount P6SMB7.5CAHM3/H on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This pad area ensures the rated 600 W peak pulse power and maintains RθJA ≤ 100 °C/W. Minimize trace inductance by placing the device adjacent to the protected connector or IC pin, and avoid routing sensitive signals near its terminals to prevent coupling during clamping events.
P6SMB7.5CAHM3/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:
- -
- 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/H FAQ
1.How can I place an order for P6SMB7.5CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5CAHM3/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/H reliable?
The price and inventory of P6SMB7.5CAHM3/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/H is usually 5 days.
3.What payment methods are accepted for P6SMB7.5CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5CAHM3/H?
P6SMB7.5CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5CAHM3/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/H?
For technical support, including P6SMB7.5CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5CAHM3/H requirements.
6.How does Aetrix verify that P6SMB7.5CAHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5CAHM3/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/H meets industry standards.
7.What is the process for return or replacement of P6SMB7.5CAHM3/H?
All P6SMB7.5CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5CAHM3/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/H part is unused and in its original packaging.
Return procedure for P6SMB7.5CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5CAHM3/H Tags
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