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Vishay General Semiconductor - Diodes Division P6SMB24A-M3/52
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- Part No.:
- P6SMB24A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24A-M3/52.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,460
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Product details
Overview
P6SMB24A-M3/52 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 24 V standoff voltage (VWM), 33.2 V maximum clamping voltage at 18.1 A peak pulse current (10/1000 μs), and 600 W peak pulse power rating - deployed in automotive sensor interfaces, industrial I/O protection, and DC power rail surge suppression.
For engineers reviewing the P6SMB24A-M3/52 datasheet, P6SMB24A-M3/52 pinout, P6SMB24A-M3/52 application, or P6SMB24A-M3/52 equivalent, key selection criteria include unidirectional polarity, 20.5 V minimum breakdown voltage (VBR), 1.0 μA max reverse leakage at VWM, thermal resistance of 100 °C/W (junction-to-ambient), and halogen-free RoHS-compliant construction per M3 suffix.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, entering avalanche conduction when transient voltage exceeds its breakdown threshold (22.8–25.2 V at 1 mA). Its low incremental surge resistance ensures rapid energy diversion during 10/1000 μs surges, while glass-passivated junction enhances reliability under repetitive stress.
Designed for surface-mount assembly on 5.0 mm × 5.0 mm copper pads, it meets J-STD-020 MSL Level 1 (260 °C peak reflow), supports 100 A non-repetitive forward surge (8.3 ms half-sine), and maintains stable clamping performance across -65 °C to +150 °C operating junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 20.5 V - Maximum continuous reverse working voltage before clamping begins |
| VBR (Breakdown) | 22.8–25.2 V at 1 mA - Confirmed avalanche onset range for reliable overvoltage triggering |
| VC (Clamping) | 33.2 V at 18.1 A (10/1000 μs) - Peak voltage seen by protected circuit during rated surge |
| PPPM | 600 W - Sustained transient energy absorption capability without failure |
| IPPM | 18.1 A - Maximum non-repetitive surge current the device safely clamps |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - Thermal resistance defining derating requirements for PCB pad layout |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to lower-potential side of protected line | Reference node for unidirectional clamping - must be tied to ground or return path |
| Cathode | Current exit point in forward bias; marked with band; connected to higher-potential line | Primary transient sensing node - placed directly across input/output rails needing protection |
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 V systems |
| 33.2 V clamping at 18.1 A | Limits voltage stress on downstream 3.3 V/5 V logic or 24 V-rated MOSFETs during transients |
| 1.0 μA max reverse leakage at 20.5 V | Minimizes standby power loss in always-on automotive modules and battery-powered sensors |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning or special handling |
| AEC-Q101 qualification option (HM3 suffix) | Validates reliability for automotive-grade applications including body control and ADAS sensor interfaces |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
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: Unidirectional shunt clamp placed between signal line and chassis ground, responding within <1 ns to suppress >100 V transients. Use Value: Prevents latch-up or permanent damage to 24 V-tolerant transceivers while maintaining signal integrity below 33.2 V clamping threshold. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on 24 V DC input channels, absorbing repetitive 600 W surges without degradation. Use Value: Eliminates need for external RC snubbers and extends mean time between failures (MTBF) in high-noise industrial environments. |
| DC Power Rail Surge Suppression | Consumer Power Adapter Output Protection |
Use Scenario: Clamping voltage overshoot on 24 V DC power distribution networks caused by hot-plug events or capacitor charging transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed at power entry point, conducting only during overvoltage excursions above 20.5 V. Use Value: Maintains system uptime by preventing brownouts or reset conditions triggered by 30–50 V spikes on regulated supplies. |
Use Scenario: Secondary-side overvoltage protection in wall-mounted AC/DC adapters supplying USB-C PD or smart home hubs. IC Role / Device Role / Timing Role: Low-leakage (1.0 μA) unidirectional clamp ensuring no impact on no-load efficiency while meeting UL 1449 Type 4 requirements. Use Value: Achieves Class II isolation compliance and reduces BOM count by replacing discrete Zener+capacitor networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/52 | Same VWM (20.5 V), identical SMB package, but lower PPPM (400 W) and higher VC (38.9 V) | Less robust for high-energy surges; suitable only where IEC 61000-4-5 Level 3 (2 kV) suffices | Select when cost sensitivity outweighs surge margin, and thermal budget allows higher clamping voltage |
| 1.5SMC24A | Higher package thermal resistance (RθJA = 125 °C/W), same VWM/VC, but larger SMC (DO-214AB) footprint | Requires PCB redesign due to 7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm; not drop-in | Choose only if legacy board space permits larger outline and higher surge tolerance (1500 W) is required |
Compared with SMAJ24A-E3/52 and 1.5SMC24A, P6SMB24A-M3/52 delivers optimal balance of 600 W surge capacity, compact SMB footprint, and low 33.2 V clamping - making it preferred for space-constrained 24 V automotive and industrial designs requiring AEC-Q101-ready halogen-free construction.
Availability
P6SMB24A-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail surge suppression requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow compatibility.
Supply support for P6SMB24A-M3/52 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, thermal performance, and automotive qualification.
The P6SMB Series targets high-reliability transient suppression in harsh environments, engineered specifically for 24 V and 48 V systems in automotive, industrial, and telecom infrastructure where consistent clamping and long-term stability are critical.
FAQ
What is the breakdown voltage range of P6SMB24A-M3/52?
The P6SMB24A-M3/52 has a guaranteed breakdown voltage (VBR) range of 22.8 V to 25.2 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent avalanche initiation across manufacturing lots and temperature extremes, directly supporting design margin calculations for 24 V nominal systems.
Does P6SMB24A-M3/52 meet automotive qualification standards?
P6SMB24A-M3/52 itself is commercial-grade; however, the HM3 variant (e.g., P6SMB24AHM3_B/H) is AEC-Q101 qualified. The M3 suffix confirms halogen-free and RoHS compliance, and the device shares identical electrical specs and SMB package with the qualified version - enabling seamless upgrade paths for automotive programs.
What is the maximum clamping voltage for P6SMB24A-M3/52 under surge conditions?
The P6SMB24A-M3/52 clamps to a maximum of 33.2 V when subjected to its rated 18.1 A peak pulse current (10/1000 μs waveform). This value is measured under standardized test conditions with 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
How does the M3 suffix affect P6SMB24A-M3/52's environmental compliance?
The M3 suffix on P6SMB24A-M3/52 indicates halogen-free, RoHS-compliant construction per JEDEC J-STD-020 and Vishay's material categorization standard (doc#99912). It also certifies compliance with JESD 201 Class 2 whisker resistance and matte tin plating compatible with J-STD-002 solderability requirements.
Can P6SMB24A-M3/52 be used in bidirectional configurations?
No - P6SMB24A-M3/52 is strictly unidirectional, identified by cathode band marking. For bidirectional operation, select the CA-suffixed variant (e.g., P6SMB24CA-M3/52), which provides symmetrical clamping in both polarities and omits the polarity band. Electrical parameters differ between unidirectional and bidirectional versions.
P6SMB24A-M3/52 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- 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)
P6SMB24A-M3/52 FAQ
1.How can I place an order for P6SMB24A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24A-M3/52 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 P6SMB24A-M3/52 reliable?
The price and inventory of P6SMB24A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24A-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB24A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24A-M3/52?
P6SMB24A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24A-M3/52 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 P6SMB24A-M3/52?
For technical support, including P6SMB24A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24A-M3/52 requirements.
6.How does Aetrix verify that P6SMB24A-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB24A-M3/52 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 P6SMB24A-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB24A-M3/52?
All P6SMB24A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24A-M3/52, 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 P6SMB24A-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB24A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24A-M3/52 Tags
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