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Vishay General Semiconductor - Diodes Division P6SMB24A-M3/5B
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- Part No.:
- P6SMB24A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24A-M3/5B.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,994
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Product details
Overview
P6SMB24A-M3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the 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 (IPPM), and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB24A-M3/5B datasheet, P6SMB24A-M3/5B pinout, P6SMB24A-M3/5B application, or P6SMB24A-M3/5B equivalent, key selection criteria include unidirectional polarity, 20.5 V minimum breakdown voltage (VBR), 1.0 μA max reverse leakage at VWM, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification eligibility via revision suffix B.
Technical Context
This TVS diode operates as a clamping device that enters avalanche conduction when transient voltage exceeds its breakdown threshold (22.8–25.2 V at 1 mA test current). Its low incremental surge resistance ensures minimal voltage overshoot during fast transients, while the glass-passivated junction enables stable performance under repetitive surge stress.
The SMB package provides a compact, surface-mount solution with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102, supporting automated placement and reflow soldering up to 260 °C peak (MSL Level 1). Thermal resistance is 100 °C/W junction-to-ambient (RθJA) on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 20.5 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (Breakdown) | 22.8–25.2 V at 1 mA - Confirmed avalanche onset range for reliable transient detection |
| VC (Clamping) | 33.2 V at 18.1 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge |
| PPPM | 600 W - Sustained peak pulse power handling per JEDEC standard waveform |
| IPPM | 18.1 A - Maximum non-repetitive surge current supported without degradation |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood or industrial enclosures |
| Leakage (ID) | ≤1.0 μA at VWM - Negligible standby power loss in battery-powered or high-impedance circuits |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant (M3 suffix), cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line (e.g., ground or return path) |
| Cathode | Avalanche conduction terminal / Clamping node | Connected to higher-potential side (e.g., VIN, signal line); band-marked end |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure |
| Glass passivated junction | Ensures long-term stability and low parameter drift across temperature and life cycles |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C without moisture-induced damage |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream components during clamping |
| AEC-Q101 qualification option | Revision suffix "B" enables use in automotive powertrain and body electronics |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load-dump and jump-start transients on 24 V vehicle power rails feeding ECUs and lighting modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp surges above 33.2 V. Use Value: Prevents permanent damage to 36 V-rated regulators and microcontrollers during ISO 16750-2 tests. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and inductive switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: TVS connected between signal line and ground to shunt sub-100 ns ESD events (IEC 61000-4-2 ±8 kV contact). Use Value: Maintains signal integrity below 1.0 μA leakage, avoiding offset errors in 16-bit ADC front-ends. |
| Consumer Power Adapter Input Stage | MOSFET Gate Driver Protection |
|
Use Scenario: Protecting AC-DC adapter primary-side rectifiers and controllers from lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Mounted across bulk capacitor input to clamp differential-mode transients before they reach switching ICs. Use Value: Withstands 600 W pulses without derating, eliminating need for series impedance in cost-sensitive designs. |
Use Scenario: Safeguarding high-side and low-side gate drivers in motor inverters from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Placed between gate and source terminals to clamp dv/dt-induced overshoot exceeding 24 V threshold. Use Value: Fast response (<1 ps) prevents false turn-on of SiC/GaN FETs and avoids shoot-through failure modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Same VWM (24 V), but lower PPPM = 400 W and higher VC = 38.9 V at 10.3 A | Limited to lower-energy transients (e.g., IEC 61000-4-5 0.5 J); not suitable for ISO 7637-2 Pulse 5a | Select P6SMB24A-M3/5B when 600 W surge margin or tighter clamping is required. |
| SMCJ24A | Same VWM and VC, but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm) | Requires PCB area increase; better thermal dissipation but incompatible with dense layouts | Choose P6SMB24A-M3/5B for space-constrained boards where SMB footprint is mandated. |
Compared with SMAJ24A and SMCJ24A, the P6SMB24A-M3/5B delivers optimal balance of 600 W surge capacity, compact SMB footprint, and 33.2 V clamping - making it preferred for automotive and industrial designs needing both space efficiency and robust transient immunity.
Availability
P6SMB24A-M3/5B is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and consumer power adapter surge suppression requiring stable component supply and halogen-free compliance.
Supply support for P6SMB24A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P6SMB Series targets board-level transient protection in harsh environments, with design focus on high-power clamping, automated assembly compatibility, and AEC-Q101 readiness for automotive electronics.
FAQ
What is the clamping voltage of the P6SMB24A-M3/5B under a 10/1000 μs surge?
The P6SMB24A-M3/5B clamps to a maximum of 33.2 V when subjected to its rated 18.1 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per JEDEC standards and reflects worst-case voltage seen by protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings. The P6SMB24A-M3/5B achieves this with low incremental resistance and tight VBR distribution (22.8–25.2 V).
Is the P6SMB24A-M3/5B suitable for automotive applications?
Yes - the P6SMB24A-M3/5B is eligible for automotive use when ordered with revision suffix "B" (e.g., P6SMB24A-M3/5B-B), which denotes AEC-Q101 qualification. It meets stress test requirements for temperature cycling, humidity, and surge robustness. Even in standard commercial M3 configuration, its 150 °C TJ max, MSL Level 1 rating, and glass-passivated junction support under-hood deployment in non-safety-critical modules like body control units and lighting drivers. The P6SMB24A-M3/5B is explicitly referenced in Vishay's automotive-grade ordering matrix.
How does the M3 suffix affect the P6SMB24A-M3/5B?
The M3 suffix on P6SMB24A-M3/5B indicates halogen-free, RoHS-compliant construction meeting JEDEC J-STD-020 MSL Level 1 and JESD 201 Class 2 whisker resistance requirements. Unlike E3-suffix variants, M3 uses bromine-free flame retardants in the molding compound and eliminates antimony trioxide - satisfying strict environmental mandates in EU, China, and Japan. All electrical parameters, including VWM, VBR, and PPPM, remain identical to E3 versions; only material composition differs. The P6SMB24A-M3/5B retains full compatibility with lead-free reflow profiles.
What is the thermal resistance of the P6SMB24A-M3/5B?
The P6SMB24A-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 - per Vishay's standardized test condition. Its junction-to-lead resistance (RθJL) is 20 °C/W, indicating efficient heat transfer to PCB traces. These values enable sustained 5.0 W power dissipation at 50 °C ambient, and derate linearly above that point. For high-reliability designs, the P6SMB24A-M3/5B's thermal performance supports continuous operation in sealed enclosures up to +85 °C ambient.
Can the P6SMB24A-M3/5B replace bidirectional TVS diodes?
No - the P6SMB24A-M3/5B is strictly unidirectional and must be oriented with cathode toward the higher-potential side of the protected line. It cannot suppress negative-going transients on AC or bipolar signal paths. For bidirectional protection, Vishay specifies part numbers ending in "CA" (e.g., P6SMB24CA), which have symmetrical breakdown in both directions and no polarity marking. Substituting P6SMB24A-M3/5B in a bidirectional application risks open-circuit failure during reverse surges. Always verify polarity and waveform symmetry before selecting the P6SMB24A-M3/5B.
P6SMB24A-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):
- 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-M3/5B FAQ
1.How can I place an order for P6SMB24A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24A-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 P6SMB24A-M3/5B reliable?
The price and inventory of P6SMB24A-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 P6SMB24A-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB24A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24A-M3/5B?
P6SMB24A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24A-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 P6SMB24A-M3/5B?
For technical support, including P6SMB24A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24A-M3/5B requirements.
6.How does Aetrix verify that P6SMB24A-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB24A-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 P6SMB24A-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB24A-M3/5B?
All P6SMB24A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24A-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 P6SMB24A-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB24A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24A-M3/5B Tags
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