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Vishay General Semiconductor - Diodes Division P6SMB27CAHE3/52
- Part No.:
- P6SMB27CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27CAHE3/52.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,204
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Product details
Overview
P6SMB27CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 23.1 V standoff voltage (VWM), 27 V nominal breakdown voltage (VBR), 37.5 V maximum clamping voltage at 16.0 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB27CAHE3/52 datasheet, P6SMB27CAHE3/52 pinout, P6SMB27CAHE3/52 application, or P6SMB27CAHE3/52 equivalent, key selection considerations include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal resistance (RθJA = 100 °C/W), and compliance with J-STD-020 MSL level 1 reflow profile.
Technical Context
The P6SMB27CAHE3/52 operates as a bidirectional avalanche diode, delivering symmetrical clamping in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive 10/1000 μs transients at 0.01% duty cycle.
Designed for surface-mount automated placement, it uses matte tin-plated SMB (DO-214AA) terminals solderable per J-STD-002 and JESD 22-B102, with thermal performance validated on 0.2" × 0.2" copper pads and rated for TJ = -65 °C to +150 °C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 23.1 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 25.7–28.4 V at 1.0 mA test current - Ensures predictable, repeatable avalanche initiation across production lots. |
| VC (Clamping Voltage) | 37.5 V at IPPM = 16.0 A (10/1000 μs) - Limits transient voltage seen by protected downstream circuitry. |
| PPPM (Peak Pulse Power) | 600 W - Sustains high-energy surges such as IEC 61000-4-5 Level 4 (4 kV/2 Ω) without failure. |
| ID (Max Reverse Leakage) | 1.0 μA at VWM - Minimizes standby power loss and avoids false triggering in low-current sensor interfaces. |
| TJ max | +150 °C - Enables reliable operation in under-hood automotive or industrial ambient environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Case meets UL 94 V-0 flammability rating; terminals are matte tin plated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction - either terminal serves as anode or cathode depending on transient polarity; enables single-component protection of AC or differential lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports robust immunity to IEC 61000-4-5 surge events without derating in standard PCB layouts. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure. |
| Glass passivated junction | Ensures long-term parameter stability and low leakage drift over temperature and lifetime. |
| AEC-Q101 qualified (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS subsystems requiring zero-defect reliability. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes voltage overshoot during fast transients, preserving margin for 3.3 V or 5 V logic interfaces. |
Applications
| Automotive Sensor Signal Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt surge energy before reaching signal conditioning ICs. Use Value: Prevents latch-up or permanent damage to 5 V tolerant microcontrollers and op-amps while maintaining signal integrity below 37.5 V clamping limit. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary transient suppression device mounted adjacent to terminal block to absorb >1 kV/42 Ω transients per IEC 61000-4-4. Use Value: Eliminates need for external RC snubbers or varistors, reducing BOM count and board space while meeting industrial EMC requirements. |
| Telecom Line Interface Protection | Consumer Power Adapter ESD Clamping |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from lightning-induced surges on outdoor data lines. IC Role / Device Role / Timing Role: First-line bidirectional clamping element in multi-stage protection scheme, coordinated with GDT and series impedance. Use Value: Withstands repeated 600 W pulses without parameter shift, ensuring long-term reliability in unattended telecom infrastructure. |
Use Scenario: ESD and surge protection on DC output rails of wall-mounted AC/DC adapters for USB-C PD and smart home devices. IC Role / Device Role / Timing Role: Secondary-level TVS after primary MOV/fuse, providing precise low-clamp protection for downstream DC-DC converters. Use Value: 37.5 V clamping ensures safe operation with 24 V output rails while supporting 1000+ contact discharge cycles per IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28CA | 28 V VBR min/max (26.6–29.4 V); same SMB package; 400 W PPPM rating. | Limited to lower-energy transients; not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive qualification or 600 W surge headroom. |
| 1.5SMC27CA | Same 27 V VBR range; higher 1500 W PPPM; larger SMC (DO-214AB) package (3.94 mm × 2.79 mm). | Requires PCB layout change; better suited for high-reliability industrial power supplies. | Choose when system-level surge testing exceeds 600 W or thermal dissipation demands larger footprint. |
Compared with SMAJ28CA and 1.5SMC27CA, P6SMB27CAHE3/52 uniquely balances AEC-Q101 qualification, 600 W surge capacity, and compact SMB footprint - making it optimal for space-constrained automotive and industrial modules where qualification and form factor are non-negotiable.
Availability
P6SMB27CAHE3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input stages, telecom line interface protection, and consumer power adapter ESD hardening requiring stable component supply and full traceability.
Supply support for P6SMB27CAHE3/52 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, precision, and application-specific validation.
The P6SMB Series targets high-volume, high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for automated assembly, AEC-Q101 compliance, and consistent clamping performance across temperature and life cycle.
FAQ
What is the clamping voltage of P6SMB27CAHE3/52 at its rated peak pulse current?
The P6SMB27CAHE3/52 has a maximum clamping voltage (VC) of 37.5 V at 16.0 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB27CAHE3/52 maintains this clamping performance across its qualified operating temperature range.
Is P6SMB27CAHE3/52 suitable for automotive applications?
Yes, P6SMB27CAHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix, and is explicitly validated for automotive use including engine control units, body electronics, and ADAS sensor interfaces. Its construction - glass-passivated junction, MSL level 1 reflow compatibility, and -65 °C to +150 °C operating range - meets automotive reliability requirements. P6SMB27CAHE3/52 is listed in Vishay's AEC-Q101 certified product portfolio.
How does the bidirectional configuration of P6SMB27CAHE3/52 affect its circuit implementation?
The bidirectional configuration of P6SMB27CAHE3/52 means it provides symmetrical clamping for both positive and negative transients without polarity orientation constraints - eliminating the need for cathode/anode alignment during placement. This simplifies layout for AC-coupled lines, differential buses (e.g., RS-485), and floating sensor outputs. P6SMB27CAHE3/52 achieves this via identical VBR and VC specifications in both directions, confirmed in the datasheet's electrical characteristics table.
What is the thermal resistance of P6SMB27CAHE3/52, and how does it impact PCB layout?
P6SMB27CAHE3/52 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. This value assumes minimum recommended pad layout per Vishay's mechanical drawings. To maintain safe junction temperatures under repetitive surge conditions, designers must allocate adequate copper area and avoid excessive trace length between P6SMB27CAHE3/52 and ground planes.
Does P6SMB27CAHE3/52 require derating at elevated ambient temperatures?
Yes, P6SMB27CAHE3/52 requires derating above TA = 25 °C, as shown in Figure 2 of the datasheet. Its peak pulse power capability decreases linearly with increasing junction temperature - for example, at TA = 85 °C with proper heatsinking, the usable PPPM drops to approximately 400 W. Derating must be applied using the published curve, and thermal simulation should confirm that P6SMB27CAHE3/52's TJ remains ≤150 °C under worst-case surge repetition.
P6SMB27CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB27CAHE3/52 FAQ
1.How can I place an order for P6SMB27CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27CAHE3/52 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 P6SMB27CAHE3/52 reliable?
The price and inventory of P6SMB27CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB27CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27CAHE3/52?
P6SMB27CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27CAHE3/52 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 P6SMB27CAHE3/52?
For technical support, including P6SMB27CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB27CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB27CAHE3/52 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 P6SMB27CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB27CAHE3/52?
All P6SMB27CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27CAHE3/52, 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 P6SMB27CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB27CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27CAHE3/52 Tags
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