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Vishay General Semiconductor - Diodes Division P6SMB27AHE3_B/I
- Part No.:
- P6SMB27AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27AHE3_B/I.pdf
- Description:
- 600W,27V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,781
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Product details
Overview
P6SMB27AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for robust overvoltage protection of sensitive electronics. It features a 27 V breakdown voltage (VBR = 25.7–28.4 V at IT = 1.0 mA), 23.1 V stand-off voltage (VWM), and clamps transients to ≤37.5 V at 16.0 A peak pulse current (10/1000 µs), delivering 600 W peak pulse power. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supply rails.
For engineers reviewing the P6SMB27AHE3_B/I datasheet, P6SMB27AHE3_B/I pinout, P6SMB27AHE3_B/I application, or P6SMB27AHE3_B/I equivalent, key selection criteria include its unidirectional polarity, SMB (DO-214AA) package compatibility with automated placement, 150 °C max junction temperature, RoHS-compliant matte tin terminals, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below VWM = 23.1 V and rapidly avalanches above VBR to limit transient voltages. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables effective energy diversion during ESD or inductive switching events.
The device is rated for 600 W peak pulse power (10/1000 µs waveform, 0.01% duty cycle), supports 100 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits a positive temperature coefficient of VBR (+0.096 %/°C), ensuring predictable voltage shift across operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 25.7–28.4 V at 1.0 mA test current - defines precise avalanche onset for reliable clamping threshold |
| Stand-off Voltage VWM | 23.1 V - maximum continuous reverse voltage before significant leakage; sets safe operating margin below VBR |
| Clamping Voltage VC | ≤37.5 V at 16.0 A IPPM (10/1000 µs) - limits protected circuit voltage during worst-case transient |
| Peak Pulse Power PPPM | 600 W - determines energy-handling capability for common surge waveforms per IEC 61000-4-5 |
| Maximum Leakage ID | ≤1.0 µA at VWM - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive electronic systems requiring stress-tested reliability and failure mode analysis |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band on body; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential rail; enables clamping when cathode-side voltage exceeds VBR |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., 24 V rail); avalanche occurs between cathode and anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive load switching without degradation |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage under thermal cycling and humidity stress |
| SMB (DO-214AA) package | Enables high-density PCB layout and compatibility with standard SMT reflow profiles (MSL Level 1, 260 °C peak) |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes overvoltage stress on downstream components during transient suppression |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply lines in engine control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between rail and ground to shunt surge energy. Use Value: Clamps 37.5 V at 16 A, limiting voltage overshoot below 40 V to prevent damage to MCU power inputs and CAN transceivers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation. IC Role / Device Role / Timing Role: Standby-mode protector with <1 µA leakage, activated only during ESD or cable discharge events. Use Value: Maintains signal fidelity during normal operation while responding in <1 ns to suppress ±8 kV contact ESD per IEC 61000-4-2. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
|
Use Scenario: Secondary-side overvoltage clamp in AC/DC adapters for smart home devices subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-acting transient suppressor parallel to bulk capacitor on 12 V output rail. Use Value: Absorbs 600 W pulses without thermal runaway, preserving capacitor lifetime and preventing downstream regulator latch-up. |
Use Scenario: Protection of -48 V DC feed lines in telecom base station power distribution boards. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground, placed at board edge before DC-DC converters. Use Value: Withstands repetitive 10/1000 µs surges up to 16 A while maintaining <1 µA leakage at -48 V nominal, minimizing standby current drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ27A-E3/5B | Same VBR range (25.7–28.4 V), but SMA package (DO-214AC); 400 W PPPM rating | Limited to lower-energy transients; less suitable for automotive load dump per ISO 7637-2 | Select if board space allows larger footprint and surge requirements are ≤400 W |
| 1.5SMC27A | Same VBR, but SMC (DO-214AB) package; 1500 W PPPM, higher thermal mass | Better suited for high-repetition surges and higher ambient temperatures (>105 °C) | Choose when enhanced power handling and junction-to-lead thermal resistance (RθJL = 1.5 °C/W) are required |
Compared with SMAJ27A-E3/5B, P6SMB27AHE3_B/I offers 50% higher peak pulse power and AEC-Q101 qualification; versus 1.5SMC27A, it provides smaller SMB footprint and tighter VBR tolerance, favoring space-constrained automotive PCBs where 600 W suffices.
Availability
P6SMB27AHE3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power feeds, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and consistent SMB package sourcing.
Supply support for P6SMB27AHE3_B/I 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, efficiency, and application-specific validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, engineered for fast response, stable clamping, and qualification to AEC-Q101 and industry surge standards.
FAQ
What is the clamping voltage of the P6SMB27AHE3_B/I at its rated peak pulse current?
The P6SMB27AHE3_B/I clamps to a maximum of 37.5 V at its rated peak pulse current of 16.0 A (10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The clamping performance is guaranteed across the full operating temperature range and is critical for ensuring downstream ICs remain within absolute maximum ratings. P6SMB27AHE3_B/I achieves this with low incremental surge resistance and a stable glass-passivated junction.
Is the P6SMB27AHE3_B/I suitable for automotive applications?
Yes, the P6SMB27AHE3_B/I is explicitly AEC-Q101 qualified, as confirmed by its HE3_B suffix and Vishay documentation. It meets stress tests for temperature cycling, humidity, mechanical shock, and ESD required for automotive electronics. Its 150 °C maximum junction temperature, robust 600 W surge rating, and stable VBR drift make it appropriate for engine control units, body electronics, and ADAS sensor interfaces. P6SMB27AHE3_B/I is manufactured and tested to automotive-grade quality standards.
What does the "_B/I" suffix in P6SMB27AHE3_B/I indicate?
The "_B" denotes AEC-Q101 qualification for the P6SMB27AHE3_B/I series, while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This format aligns with Vishay's ordering nomenclature for automotive-grade parts delivered in high-volume SMT-compatible packaging. The "HE3" portion confirms RoHS-compliance and AEC-Q101 qualification, distinguishing it from commercial-grade E3 or M3 variants. P6SMB27AHE3_B/I thus combines automotive reliability with optimized logistics for automated assembly.
How does the P6SMB27AHE3_B/I compare to bidirectional TVS diodes like P6SMB27CA?
The P6SMB27AHE3_B/I is unidirectional and intended for DC rail protection where polarity is fixed (e.g., +24 V to ground), offering lower leakage (<1.0 µA) and sharper clamping near VBR. In contrast, P6SMB27CA is bidirectional and suited for AC or floating signal lines, with symmetrical clamping in both directions but higher leakage (≤5.0 µA). P6SMB27AHE3_B/I cannot replace P6SMB27CA in AC-coupled applications due to polarity dependence, and vice versa - correct selection depends on circuit topology and signal type.
What is the thermal resistance of the P6SMB27AHE3_B/I, and how does it affect PCB layout?
The P6SMB27AHE3_B/I 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. To maintain safe junction temperatures under repeated surges, PCB layout must use minimum recommended pad dimensions (0.086" × 0.060") and avoid excessive trace length or isolation. Thermal performance directly impacts sustained surge capability - undersized copper reduces effective PPPM derating. P6SMB27AHE3_B/I requires adherence to Vishay's mounting pad layout for datasheet-rated performance.
P6SMB27AHE3_B/I 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:
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB27AHE3_B/I FAQ
1.How can I place an order for P6SMB27AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27AHE3_B/I 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 P6SMB27AHE3_B/I reliable?
The price and inventory of P6SMB27AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB27AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27AHE3_B/I?
P6SMB27AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27AHE3_B/I 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 P6SMB27AHE3_B/I?
For technical support, including P6SMB27AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB27AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB27AHE3_B/I 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 P6SMB27AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB27AHE3_B/I?
All P6SMB27AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27AHE3_B/I, 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 P6SMB27AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB27AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27AHE3_B/I Tags
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