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Vishay General Semiconductor - Diodes Division P6SMB27A-M3/52
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- Part No.:
- P6SMB27A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27A-M3/52.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,907
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Product details
Overview
P6SMB27A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on power and signal lines. It features a 23.1 V stand-off voltage (VWM), 25.7–28.4 V breakdown voltage (VBR) at 1 mA, 37.5 V maximum clamping voltage (VC) at 16.0 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 P6SMB27A-M3/52 datasheet, P6SMB27A-M3/52 pinout, P6SMB27A-M3/52 application, or P6SMB27A-M3/52 equivalent, key selection criteria include its unidirectional polarity, SMB (DO-214AA) package compatibility, 150 °C max junction temperature, halogen-free RoHS compliance (M3 suffix), and suitability for automated SMT assembly with J-STD-002 solderability.
Technical Context
The P6SMB27A-M3/52 operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (VBR), thereby shunting transient energy to ground. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while low incremental surge resistance enables effective clamping under high-current transients.
Rated for 600 W peak pulse power (10/1000 μs), it delivers 37.5 V clamping at 16.0 A IPPM and maintains ≤1.0 μA reverse leakage at 23.1 V VWM. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting operation from –65 °C to +150 °C with MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 23.1 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown) | 25.7–28.4 V at 1 mA - Verified avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 37.5 V at 16.0 A IPPM - Peak voltage seen by protected circuit during worst-case 10/1000 μs transient; determines downstream component stress. |
| PPPM | 600 W - Peak transient power handling per 10/1000 μs waveform; supports robust protection against ESD, lightning, and inductive switching surges. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.205" × 0.220" footprint; compatible with automated pick-and-place and reflow profiles up to 260 °C peak. |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1. |
| TJ max | +150 °C - Maximum junction temperature; enables reliable operation in under-hood automotive and industrial ambient environments. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 3.94 mm × 2.20 mm × 1.52 mm (L × W × H); terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input / transient return path | Connected to protected line (e.g., VCC or signal trace); conducts during forward surge or bidirectional variants (not applicable here). |
| Cathode | Clamping node / ground reference | Marked with band; ties to system ground or low-impedance return path to divert transient current away from sensitive components. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients such as ISO 7637-2 Pulse 5a without derating in standard PCB layouts. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<1.0 μA at VWM), critical for battery-powered or low-power sensor nodes. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking; eliminates production delays in high-volume SMT lines. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for global OEM programs including automotive Tier 1 supply chains. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage exposure to downstream ICs - e.g., keeps 3.3 V or 5 V logic within safe absolute maximum ratings during clamping. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V power rails in body control modules from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and DC-DC converter input to clamp spikes up to 100 V. Use Value: Limits rail voltage to ≤37.5 V during 16 A transients, preventing damage to 40 V-rated input stages of buck regulators. |
Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD (IEC 61000-4-2) and field-induced surges on 4–20 mA loops. Use Value: Clamps fast transients within <1 ns while adding <0.5 pF capacitance, preserving signal integrity in sub-100 kHz measurement bandwidths. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Standoff voltage (23.1 V) exceeds 5.5 V VBUS max, enabling clamping only during >25 V ESD events without interfering with normal operation. Use Value: Withstands ±15 kV contact discharge (IEC 61000-4-2) while maintaining <1 μA leakage at 5 V - no impact on USB enumeration or power budget. |
Use Scenario: Front-end surge suppression on twisted-pair DSL lines exposed to induced lightning surges in outdoor cabinets. IC Role / Device Role / Timing Role: Paired with gas discharge tube (GDT) in hybrid protection scheme; handles fast-rising portion (<100 ns) before GDT fires. Use Value: 37.5 V clamping prevents damage to line driver ICs rated for 40 V absolute max, extending service life in humid, high-surge environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower PPPM (400 W), higher VWM (20.5 V), same SMB package and unidirectional polarity. | Less robust for high-energy transients like load dump; suitable for lower-risk consumer signal-line protection. | Select when 400 W rating suffices and tighter VWM margin is needed near 24 V nominal rails. |
| 1.5SMC27A | Higher package thermal resistance (RθJA = 125 °C/W), identical VWM/VBR/VC specs, but larger SMC (DO-214AB) footprint. | Requires PCB layout change; better for high-reliability industrial designs needing marginally improved thermal dissipation. | Choose only if existing design uses SMC pads or requires >100 °C/W thermal margin under sustained surge duty. |
Compared with SMAJ24A and 1.5SMC27A, the P6SMB27A-M3/52 offers superior 600 W pulse handling in the compact SMB outline and halogen-free compliance - making it optimal for space-constrained, automotive-qualified, and high-transient industrial applications where both size and environmental compliance are mandatory.
Availability
P6SMB27A-M3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DSL line surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P6SMB27A-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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The P6SMB series was engineered for cost-effective, high-power transient suppression in surface-mount applications - targeting automotive, industrial, and telecom systems where robustness, small footprint, and AEC-Q101 readiness are essential.
FAQ
What is the maximum clamping voltage of the P6SMB27A-M3/52 under a 10/1000 μs transient?
The P6SMB27A-M3/52 has a maximum clamping voltage (VC) of 37.5 V at 16.0 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per JEDEC standards and represents the highest voltage the device allows across its terminals during that specific transient condition - directly defining the protection level for downstream components. The P6SMB27A-M3/52 maintains this clamping performance across its specified operating temperature range.
Is the P6SMB27A-M3/52 suitable for automotive applications?
Yes, the P6SMB27A-M3/52 is halogen-free and RoHS-compliant (M3 suffix), and the P6SMB family includes AEC-Q101 qualified variants (e.g., P6SMB27AHM3_B/H). While the M3/52 suffix itself denotes commercial-grade halogen-free construction, its electrical specs - including 150 °C TJ max, 600 W PPPM, and MSL Level 1 - align with automotive subsystem requirements. For certified automotive use, confirm ordering code suffixes with Vishay's AEC-Q101 documentation. The P6SMB27A-M3/52 serves as a baseline for qualifying higher-grade versions.
What does the "M3" suffix mean in P6SMB27A-M3/52?
The "M3" suffix in P6SMB27A-M3/52 indicates halogen-free, RoHS-compliant construction meeting JEDEC J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements. It replaces lead-free "E3" variants with environmentally optimized molding compounds and plating, without altering electrical characteristics. The "/52" denotes 7" diameter tape-and-reel packaging with 750 units per reel - a standard logistics format for SMT production. The P6SMB27A-M3/52 is fully compatible with standard reflow profiles peaking at 260 °C.
How does the P6SMB27A-M3/52 compare to bidirectional TVS diodes like P6SMB27CA?
The P6SMB27A-M3/52 is unidirectional and intended for DC power line or single-polarity signal protection, with polarity-sensitive mounting (cathode band to ground). In contrast, P6SMB27CA is bidirectional and symmetric - suitable for AC lines or differential signals where voltage reversal occurs. Their VWM (23.1 V vs. 23.1 V), VBR (25.7–28.4 V vs. same), and VC (37.5 V vs. 37.5 V) match, but the P6SMB27A-M3/52 cannot replace P6SMB27CA in AC-coupled circuits without redesign. The P6SMB27A-M3/52 offers lower leakage in DC applications due to its unidirectional structure.
What is the thermal resistance of the P6SMB27A-M3/52, and how does it affect layout?
The P6SMB27A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 0.2" × 0.2" copper pads per terminal. This means PCB layout must provide adequate copper area - minimum 5.0 mm × 5.0 mm per pad - to sustain 5.0 W steady-state power dissipation at TA = 50 °C. For repeated transients, thermal mass and board layer stack-up significantly influence peak junction temperature rise; the P6SMB27A-M3/52's low RθJL supports efficient heat transfer to internal planes or heatsinks.
P6SMB27A-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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
P6SMB27A-M3/52 FAQ
1.How can I place an order for P6SMB27A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27A-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 P6SMB27A-M3/52 reliable?
The price and inventory of P6SMB27A-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 P6SMB27A-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB27A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27A-M3/52?
P6SMB27A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27A-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 P6SMB27A-M3/52?
For technical support, including P6SMB27A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27A-M3/52 requirements.
6.How does Aetrix verify that P6SMB27A-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB27A-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 P6SMB27A-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB27A-M3/52?
All P6SMB27A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27A-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 P6SMB27A-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB27A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27A-M3/52 Tags
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