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Vishay General Semiconductor - Diodes Division P6SMB75A-M3/5B
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- Part No.:
- P6SMB75A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75A-M3/5B.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB75A-M3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 75 V standoff voltage (VWM), 71.3–78.8 V breakdown voltage (VBR) at 1 mA, 103 V maximum clamping voltage at 5.8 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB75A-M3/5B datasheet, P6SMB75A-M3/5B pinout, P6SMB75A-M3/5B application, or P6SMB75A-M3/5B equivalent, key selection criteria include unidirectional polarity, 103 V clamping performance under 5.8 A surge, SMB package thermal resistance (RθJA = 100 °C/W), and halogen-free RoHS compliance per M3 suffix - critical for automotive-grade ESD and load-switching transient protection.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by reverse-biased avalanche breakdown. Its low incremental surge resistance ensures minimal voltage overshoot during fast transients (response time < 1 ns), while the glass-passivated junction provides stable leakage (< 1 μA at 64.1 V) and long-term reliability under repetitive surges.
The device is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 (peak reflow 260 °C). Its SMB package supports automated placement and delivers 600 W peak pulse power only when mounted on 0.2" × 0.2" copper pads - derating applies above 25 °C ambient per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 64.1 V - maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown |
| VBR (Breakdown Voltage) | 71.3–78.8 V at 1 mA - precise avalanche threshold ensuring predictable turn-on during overvoltage events |
| VC (Clamping Voltage) | 103 V at 5.8 A IPPM - limits downstream voltage stress during 10/1000 μs surge, protecting 75 V-rated components |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity for transient suppression without failure under standardized surge waveform |
| ID (Reverse Leakage) | < 1 μA at 64.1 V - negligible standby current that avoids system power loss or false triggering |
| TJ max | 150 °C - maximum junction temperature enabling operation in high-ambient industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; requires PCB copper pad area (0.2" × 0.2") for rated power dissipation |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated leads solderable per J-STD-002. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased avalanche terminal | Connected to protected line; conducts during overvoltage to clamp voltage to VC |
| Anode (unbanded end) | Reference/ground return path | Typically tied to ground or lower-potential rail; completes clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24–48 V DC rails |
| 103 V clamping at 5.8 A | Provides 28 V headroom below 131 V absolute max rating of common 100 V MOSFETs, preventing avalanche failure |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without popcorn cracking or delamination in high-volume SMT assembly |
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and low leakage drift over 10+ years in humid industrial environments |
| Halogen-free (M3 suffix) | Meets IPC-4101D/21 and EU Directive 2011/65/EU Annex II for green electronics manufacturing |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 24 V digital input channels from inductive kickback caused by relay/solenoid switching in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input line and ground to clamp transients before they reach optocoupler or MCU GPIO. Use Value: Limits voltage to ≤103 V during 500 A surge events, preserving 3.3 V/5 V logic interface integrity and extending system MTBF. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller supply pins against load-dump and jump-start transients in vehicle door modules. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply rail, activated within nanoseconds to suppress 100 V/100 ms load-dump pulses. Use Value: Maintains <1 μA leakage at 13.5 V nominal battery, avoiding quiescent current penalties while meeting ISO 7637-2 Pulse 5a requirements. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive |
Use Scenario: Front-end protection of AC/DC adapters and PoE injectors against lightning-induced surges on primary-side DC bus. IC Role / Device Role / Timing Role: Primary-side TVS across bulk capacitor terminals to absorb differential-mode transients before they propagate to secondary regulation. Use Value: Withstands 600 W peak power without degradation, enabling single-stage protection architecture and reducing BOM count vs. multi-stage designs. |
Use Scenario: Clamping voltage spikes generated by brushed DC motor commutation in washing machine control boards. IC Role / Device Role / Timing Role: Unidirectional suppressor across H-bridge high-side FET source-drain to limit VDS overshoot during PWM turn-off. Use Value: 103 V clamping prevents 100 V MOSFET avalanche conduction, eliminating gate driver stress and improving thermal stability during repeated stall events. |
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 | Same SMB package, but lower PPPM (400 W); VBR min/max tighter (71.3–75.8 V); RθJA higher (125 °C/W) | Limited to lower-energy transients (e.g., IEC 61000-4-4); less suitable for 24 V industrial load-dump where 600 W margin is required | Select P6SMB75A-M3/5B when 600 W surge handling and lower thermal resistance are mandatory for sustained reliability. |
| 1.5SMC75A | Higher-power SMC package (1500 W), larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm); same VWM/VBR specs; RθJA ≈ 35 °C/W | Requires PCB redesign; over-specified for space-constrained consumer or telecom applications where SMB fits existing layout | Choose P6SMB75A-M3/5B when board space is constrained and 600 W suffices - avoids unnecessary layout change and cost increase. |
Compared with SMAJ75A and 1.5SMC75A, P6SMB75A-M3/5B uniquely balances 600 W surge capability, SMB footprint compatibility, and halogen-free compliance - making it optimal for high-volume industrial and automotive modules where thermal management, regulatory alignment, and layout reuse are jointly critical.
Availability
P6SMB75A-M3/5B is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control units, and telecom power supplies requiring stable component supply, halogen-free compliance, and repeatable surge immunity performance.
Supply support for P6SMB75A-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, precision, and application-specific qualification.
The P6SMB Series is engineered for high-reliability transient suppression in harsh environments - targeting automotive (AEC-Q101), industrial, and telecom systems where consistent clamping performance and long-term stability are non-negotiable.
FAQ
What is the clamping voltage of P6SMB75A-M3/5B at its rated peak pulse current?
The P6SMB75A-M3/5B has a maximum clamping voltage (VC) of 103 V at 5.8 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB75A-M3/5B maintains this clamping performance across its full operating temperature range when derated per Fig. 2 of the datasheet.
Is P6SMB75A-M3/5B suitable for automotive applications?
Yes - the P6SMB75A-M3/5B is halogen-free and RoHS-compliant (M3 suffix), and the P6SMB75A variant is AEC-Q101 qualified when ordered with suffix _B (e.g., P6SMB75A-M3_B/5B). While the base P6SMB75A-M3/5B itself is commercial-grade, its construction (glass-passivated junction, MSL Level 1, 150 °C TJ max) aligns with automotive subsystem requirements. For certified use, specify the AEC-Q101 version; the P6SMB75A-M3/5B remains suitable for non-safety-critical automotive modules where qualification is not mandated.
How does the M3 suffix affect P6SMB75A-M3/5B's compliance and processing?
The M3 suffix on P6SMB75A-M3/5B indicates halogen-free, RoHS-compliant construction with matte tin-plated leads meeting J-STD-002 solderability and JESD 22-B102 whisker resistance (Class 2). It also certifies compliance with IPC-4101D/21 and EU Directive 2011/65/EU Annex II. Unlike E3-suffix parts, M3 devices contain no brominated flame retardants or chlorine-based compounds - critical for green manufacturing and end-of-life recycling. The P6SMB75A-M3/5B retains identical electrical specs and thermal performance versus E3 variants.
What is the recommended PCB pad layout for P6SMB75A-M3/5B to achieve rated 600 W pulse power?
To achieve the full 600 W peak pulse power rating, P6SMB75A-M3/5B must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the datasheet's Mechanical Data section. Smaller pads reduce heat dissipation, causing premature thermal runaway during surge events. The P6SMB75A-M3/5B's RθJA of 100 °C/W is validated only with this layout; using smaller pads increases junction temperature and requires derating per Fig. 2. Thermal vias under pads further improve performance but are not required for baseline rating.
Does P6SMB75A-M3/5B have bidirectional capability?
No - P6SMB75A-M3/5B is a unidirectional TVS diode, indicated by the "A" suffix (vs. "CA" for bidirectional). It conducts only when reverse-biased beyond its breakdown voltage (71.3–78.8 V), with the cathode band marking the protected line connection. Bidirectional operation requires a part like P6SMB75CA-M3/5B, which clamps symmetrically in both polarities. Using P6SMB75A-M3/5B in AC or floating applications risks forward conduction and failure; always verify polarity alignment in the target circuit before deploying P6SMB75A-M3/5B.
P6SMB75A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB75A-M3/5B FAQ
1.How can I place an order for P6SMB75A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75A-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 P6SMB75A-M3/5B reliable?
The price and inventory of P6SMB75A-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 P6SMB75A-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB75A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75A-M3/5B?
P6SMB75A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75A-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 P6SMB75A-M3/5B?
For technical support, including P6SMB75A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75A-M3/5B requirements.
6.How does Aetrix verify that P6SMB75A-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB75A-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 P6SMB75A-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB75A-M3/5B?
All P6SMB75A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75A-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 P6SMB75A-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB75A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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