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Vishay General Semiconductor - Diodes Division P6SMB7.5CA-M3/5B
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- Part No.:
- P6SMB7.5CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5CA-M3/5B.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,689
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Product details
Overview
P6SMB7.5CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount 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 at 53.1 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB7.5CA-M3/5B datasheet, P6SMB7.5CA-M3/5B pinout, P6SMB7.5CA-M3/5B application, or P6SMB7.5CA-M3/5B equivalent, key selection criteria include bidirectional clamping behavior, low clamping ratio (VC/VWM = 1.51), halogen-free RoHS compliance (M3 suffix), AEC-Q101 qualification readiness, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance in forward and reverse directions per JESD22-A114 test conditions. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<500 μA at 6.4 V), while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
The device uses a planar silicon junction structure optimized for fast response (<1.0 ns) 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). Thermal resistance (RθJA = 100 °C/W) reflects standard SMB PCB mounting with minimal copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 6.4 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown) | 7.13–7.88 V at 10 mA - Measured voltage where device enters avalanche; tight 10% tolerance enables predictable trigger point. |
| VC (Clamping) | 11.3 V at 53.1 A - Peak voltage seen by protected circuit during 10/1000 μs transient; low ratio (VC/VWM = 1.51) minimizes stress on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; supports repetitive surge events at 0.01% duty cycle. |
| ID (Leakage) | ≤500 μA at VWM - Ensures negligible standby current draw in battery-powered or high-impedance signal paths. |
| TJ max. | +150 °C - Maximum junction temperature; allows operation in under-hood automotive or enclosed industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with IPC-7351B density level B land patterns. |
Pinout & Package
SMB (DO-214AA) package: molded plastic body with matte tin-plated leads, compliant with J-STD-002 solderability and JESD22-B102 whisker testing. Bidirectional construction means no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction between pins. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device conducts equally in both directions above VBR. |
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 | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for industrial and automotive end equipment without compromising surge robustness. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and compatibility with standard lead-free reflow profiles up to 260 °C peak. |
| Low clamping ratio (VC/VWM = 1.51) | Reduces voltage overshoot on protected nodes, improving margin for 5 V or 3.3 V logic interfaces. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to limit transient excursions. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers while maintaining signal integrity during ISO 16750-2 pulses. |
Use Scenario: Shielding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on input terminals to shunt energy before it reaches precision op-amps or ADC front-ends. Use Value: Maintains <1 LSB error in 16-bit ADC measurements by limiting clamped voltage to ≤11.3 V during 1 kV/500 A surge events. |
| Consumer USB Port Protection | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding USB 2.0 D+/D− lines in set-top boxes and smart displays from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at connector to intercept transients before USB PHY. Use Value: Achieves <3 pF typical junction capacitance (per Fig. 4), preserving signal rise time and eye diagram integrity up to 480 Mbps. |
Use Scenario: Front-end protection of DSL or Ethernet line interface units exposed to lightning-induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Primary clamping device in multi-stage protection architecture, absorbing bulk surge energy before GDT or MOV stages. Use Value: Handles 53.1 A peak pulse current at 11.3 V clamping, reducing downstream component stress and extending system MTBF. |
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) and VC (11.3 V), but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Less suitable for high-repetition surges or high-ambient-temperature environments due to thermal limitations. | Select when board space is constrained and surge energy is limited to <400 W. |
| 1.5KE7.5CA | Higher PPPM (1500 W), axial-leaded DO-201 package; larger size, through-hole mounting only. | Not compatible with SMT assembly; requires manual or wave soldering; better for prototyping or low-volume legacy designs. | Select when higher surge endurance is required and automated SMT is not mandatory. |
Compared with SMAJ7.5CA, P6SMB7.5CA-M3/5B delivers 50% higher surge power handling and superior thermal performance on standard PCBs; versus 1.5KE7.5CA, it enables automated manufacturing and reduces board real estate by >60%, albeit with lower absolute energy rating.
Availability
P6SMB7.5CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, consumer USB port protection, and telecom line card surge suppression requiring stable component supply and halogen-free compliance.
Supply support for P6SMB7.5CA-M3/5B 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 application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications systems, with design focus on robust clamping, AEC-Q101 readiness, and seamless SMT integration.
FAQ
What is the clamping voltage of P6SMB7.5CA-M3/5B at its rated peak pulse current?
The P6SMB7.5CA-M3/5B has a maximum clamping voltage (VC) of 11.3 V at 53.1 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and guarantees that protected circuits experience no more than 11.3 V during specified surge events - critical for safeguarding 5 V logic interfaces. The P6SMB7.5CA-M3/5B achieves this with a low clamping ratio of 1.51, enhancing system resilience.
Is P6SMB7.5CA-M3/5B suitable for automotive applications?
Yes, P6SMB7.5CA-M3/5B is qualified to AEC-Q101 when ordered with the "_B" suffix (e.g., P6SMB7.5CAHM3_B), and the M3 suffix confirms halogen-free, RoHS-compliant construction. While the base P6SMB7.5CA-M3/5B is commercial-grade, its electrical specs - including 150 °C TJ max, 600 W PPPM, and robust surge current rating - align with automotive subsystem requirements such as body control modules and sensor interfaces. The P6SMB7.5CA-M3/5B supports reflow up to 260 °C (MSL Level 1), meeting automotive assembly standards.
How does the bidirectional configuration of P6SMB7.5CA-M3/5B affect circuit layout?
The bidirectional nature of P6SMB7.5CA-M3/5B eliminates polarity constraints: either terminal can connect to either side of a differential line or floating node without risk of reverse bias damage. This simplifies PCB routing for AC-coupled signals like RS-485 or USB D+/D−, removes need for orientation checking during placement, and avoids costly rework from incorrect orientation. Since the P6SMB7.5CA-M3/5B has no cathode marking, layout requires no silkscreen polarity indicators - reducing mask complexity and assembly steps.
What is the thermal resistance of P6SMB7.5CA-M3/5B, and how does it impact derating?
P6SMB7.5CA-M3/5B 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. This value determines power dissipation limits at elevated ambient temperatures: for example, at TA = 75 °C, the device's usable power drops to ~2.5 W (derated from 5.0 W at 50 °C). Engineers must apply this RθJA in thermal simulations for high-density layouts or sealed enclosures. The P6SMB7.5CA-M3/5B's RθJL of 20 °C/W further supports localized heat transfer to PCB copper planes.
Can P6SMB7.5CA-M3/5B replace unidirectional TVS diodes in existing designs?
P6SMB7.5CA-M3/5B is not a drop-in replacement for unidirectional TVS diodes because its bidirectional behavior conducts in both directions above VBR - potentially interfering with DC-biased circuits or rectifier paths. In unidirectional applications (e.g., 12 V supply rail protection), using P6SMB7.5CA-M3/5B may cause unintended leakage or forward conduction. For such cases, the unidirectional variant P6SMB7.5A-M3/5B is recommended. Always verify polarity requirements before substituting P6SMB7.5CA-M3/5B into legacy unidirectional layouts.
P6SMB7.5CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB7.5CA-M3/5B FAQ
1.How can I place an order for P6SMB7.5CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5CA-M3/5B 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 P6SMB7.5CA-M3/5B reliable?
The price and inventory of P6SMB7.5CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5CA-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB7.5CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5CA-M3/5B?
P6SMB7.5CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5CA-M3/5B 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 P6SMB7.5CA-M3/5B?
For technical support, including P6SMB7.5CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5CA-M3/5B requirements.
6.How does Aetrix verify that P6SMB7.5CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5CA-M3/5B 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 P6SMB7.5CA-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB7.5CA-M3/5B?
All P6SMB7.5CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5CA-M3/5B, 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 P6SMB7.5CA-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB7.5CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5CA-M3/5B Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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