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Vishay General Semiconductor - Diodes Division P6SMB7.5A-M3/5B
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- Part No.:
- P6SMB7.5A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5A-M3/5B.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,483
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Product details
Overview
P6SMB7.5A-M3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping transient overvoltages on power and signal lines. It features a 6.40 V stand-off voltage (VWM), 7.13–7.88 V breakdown voltage (VBR) at 10 mA, 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). It is used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB7.5A-M3/5B datasheet, P6SMB7.5A-M3/5B pinout, P6SMB7.5A-M3/5B application, or P6SMB7.5A-M3/5B equivalent, key selection criteria include unidirectional polarity, 11.3 V clamping performance under 53.1 A surge, SMB package thermal resistance (RθJA = 100 °C/W), halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification availability via alternate ordering codes.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<500 μA at VWM), while the low incremental surge resistance enables fast response (<1.0 ns) to ESD and lightning-induced transients.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Fig. 2. Mounting on 5.0 mm × 5.0 mm copper pads is required to sustain its 600 W peak pulse rating; standalone operation without heatsinking limits continuous power dissipation to 5.0 W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 6.40 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below circuit rail voltage. |
| VBR (Breakdown) | 7.13–7.88 V at 10 mA - Verified avalanche onset range; ensures reliable triggering within ±5% tolerance. |
| VC (Clamping) | 11.3 V at 53.1 A - Maximum voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM | 600 W - Peak transient energy absorption capability with standard 10/1000 μs waveform; validates robustness against IEC 61000-4-5 surges. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; supports automated placement and meets UL 94 V-0 flammability. |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); MSL Level 1 (260 °C reflow peak); JEDEC JESD201 Class 2 whisker resistance. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads. Cathode indicated by band marking on body; anode is unmarked end. Designed for PCB mounting on 5.0 mm × 5.0 mm copper pads per terminal to meet thermal and pulse power ratings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased avalanche node | Connected to protected line; conducts during overvoltage to clamp to VC; must be routed with low-inductance path to ground. |
| Anode (unbanded end) | Reference/ground return | Typically tied to system ground or low-impedance return plane; forms clamping loop with cathode and protected IC input. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validated surge handling for IEC 61000-4-5 Level 4 (4 kV) line-to-ground transients in industrial power supplies. |
| 11.3 V clamping at 53.1 A | Ensures protected 5 V or 3.3 V logic circuits remain below absolute maximum ratings during worst-case surge events. |
| Glass-passivated junction | Provides stable VBR over temperature and lifetime; eliminates parameter drift due to moisture or contamination ingress. |
| Low-profile SMB package | Enables high-density layout on space-constrained PCBs while maintaining thermal performance via standardized pad layout. |
| AEC-Q101 qualification option | Available via HE3/HM3 suffix variants; supports automotive infotainment and body control module designs requiring reliability validation. |
Applications
| Industrial Motor Drives | Automotive Sensor Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against inductive kickback from 24 V DC solenoids and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed between driver output and ground to clamp negative transients before they reach sensitive CMOS inputs. Use Value: Limits voltage excursion to ≤11.3 V during 53.1 A surges, preventing latch-up or oxide breakdown in 3.3 V/5 V logic interfaces. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in engine control units from load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff protection on 5 V sensor supply rail; activated only during >6.4 V overvoltage events lasting <1 ms. Use Value: Maintains sensor signal integrity by clamping transients within 1 ns, avoiding data corruption or ADC saturation during vehicle cranking. |
| Telecom Power Supplies | Consumer USB Port Protection |
Use Scenario: Input-stage surge suppression on 12 V/48 V telecom rectifier modules exposed to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Primary clamping device on DC bus prior to DC-DC converters; absorbs repetitive 600 W pulses at 0.01% duty cycle. Use Value: Extends converter lifespan by limiting bus voltage spikes to 11.3 V, preventing overstress of primary-side MOSFETs and bulk capacitors. |
Use Scenario: Reverse-polarity and ESD protection on VBUS line of USB 2.0 host ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Unidirectional shunt element between VBUS and GND; blocks normal 5 V operation but conducts during >6.4 V faults. Use Value: Meets IEC 61000-4-2 Level 4 (15 kV air, 8 kV contact) ESD immunity without adding series impedance to data lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A | Lower VWM (6.0 V), higher VC (12.0 V at 49.2 A), same SMB package and 600 W rating. | Slightly tighter clamping margin for 5 V systems but reduced headroom before conduction; less suitable for 6 V nominal rails. | Select when protecting 5 V logic with strict VWM margin requirements and acceptable 12.0 V clamping ceiling. |
| 1.5SMC7.5A | Same VWM (6.4 V) and VBR range, but larger SMC (DO-214AB) package; RθJA = 60 °C/W vs. 100 °C/W. | Better thermal performance allows higher sustained surge repetition, but requires 2.5× more PCB area than SMB. | Choose for high-duty-cycle industrial environments where thermal management outweighs board space constraints. |
Compared with P6SMB7.5A-M3/5B, SMAJ7.0A offers lower stand-off voltage at the cost of higher clamping, while 1.5SMC7.5A trades compact SMB footprint for superior thermal dissipation-making P6SMB7.5A-M3/5B optimal for space-limited, medium-duty surge protection in commercial and automotive-grade designs.
Availability
P6SMB7.5A-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive sensor interfaces, telecom power supplies, and consumer USB port protection requiring stable component supply and halogen-free RoHS compliance.
Supply support for P6SMB7.5A-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets cost-sensitive, high-volume transient suppression needs across automotive, industrial, and consumer markets-designed for robustness in harsh environments and compatibility with automated SMT assembly processes.
FAQ
What is the maximum clamping voltage of the P6SMB7.5A-M3/5B under standard test conditions?
The P6SMB7.5A-M3/5B exhibits a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 53.1 A using the 10/1000 μs waveform. This value is measured at the device terminals under specified mounting conditions (0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB7.5A-M3/5B maintains this clamping performance across its operational temperature range.
Is the P6SMB7.5A-M3/5B suitable for automotive applications?
The P6SMB7.5A-M3/5B itself is a commercial-grade part (M3 suffix), but Vishay offers AEC-Q101 qualified versions under ordering codes such as P6SMB7.5AHM3_B/I. These variants share identical electrical characteristics-including 6.40 V VWM, 7.13–7.88 V VBR, and 11.3 V VC-but undergo additional stress testing for automotive reliability. The P6SMB7.5A-M3/5B may be used in non-safety-critical automotive subsystems pending customer qualification.
How does the M3 suffix affect the P6SMB7.5A-M3/5B's material composition and compliance?
The M3 suffix on P6SMB7.5A-M3/5B indicates halogen-free, RoHS-compliant construction per EU Directive 2011/65/EU and IPC-1752A. It confirms absence of brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), antimony trioxide, and other restricted substances. This designation also certifies compliance with JESD201 Class 2 whisker resistance and MSL Level 1 reflow profile (peak 260 °C).
What is the thermal resistance of the P6SMB7.5A-M3/5B, and how does it impact layout design?
The P6SMB7.5A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. This value dictates that a 5.0 W steady-state power dissipation would raise junction temperature by 500 °C above ambient-hence the device is intended for transient-only operation. Layout must strictly follow Vishay's pad dimensions to achieve rated 600 W pulse performance; smaller pads increase RθJA and reduce surge capability.
Can the P6SMB7.5A-M3/5B be used in bidirectional configurations?
No-the P6SMB7.5A-M3/5B is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires a CA-suffixed variant such as P6SMB7.5CA-M3/5B, which provides symmetrical clamping in both polarities. Using the unidirectional P6SMB7.5A-M3/5B in reverse-biased signal paths risks forward conduction and failure; always match device polarity to circuit topology.
P6SMB7.5A-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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB7.5A-M3/5B FAQ
1.How can I place an order for P6SMB7.5A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5A-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 P6SMB7.5A-M3/5B reliable?
The price and inventory of P6SMB7.5A-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 P6SMB7.5A-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB7.5A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5A-M3/5B?
P6SMB7.5A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5A-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 P6SMB7.5A-M3/5B?
For technical support, including P6SMB7.5A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5A-M3/5B requirements.
6.How does Aetrix verify that P6SMB7.5A-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5A-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 P6SMB7.5A-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB7.5A-M3/5B?
All P6SMB7.5A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5A-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 P6SMB7.5A-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB7.5A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5A-M3/5B Tags
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