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Vishay General Semiconductor - Diodes Division P6SMB27AHE3/5B
- Part No.:
- P6SMB27AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27AHE3/5B.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,388
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Product details
Overview
P6SMB27AHE3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 27 V breakdown voltage (VBR = 25.7–28.4 V at IT = 1.0 mA), 23.1 V stand-off voltage (VWM), and 37.5 V maximum clamping voltage (VC) at 16.0 A peak pulse current (IPPM). It delivers 600 W peak pulse power (10/1000 μs waveform) and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P6SMB27AHE3/5B datasheet, P6SMB27AHE3/5B pinout, P6SMB27AHE3/5B application, or P6SMB27AHE3/5B equivalent, this device is selected for robust overvoltage protection on DC power rails and signal lines where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.63), and automotive-grade reliability are required.
Technical Context
The P6SMB27AHE3/5B operates as a unidirectional avalanche diode, conducting only in reverse bias above VBR to clamp transient surges. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (≤1.0 μA at VWM), while its MSL Level 1 rating supports lead-free reflow up to 260 °C.
Designed for repetitive surge handling at 0.01% duty cycle, it sustains 600 W peak pulse power under standardized 10/1000 μs waveform conditions and exhibits a temperature coefficient of VBR of +0.096 %/°C - enabling predictable voltage drift across -65 °C to +150 °C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V at 1.0 mA test current - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 23.1 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 37.5 V at 16.0 A - clamping voltage limiting protected circuit stress during 600 W transient events |
| PPPM | 600 W (10/1000 μs) - peak surge energy absorption capacity without failure |
| TJ max | +150 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads |
| AEC-Q101 | Qualified - validated for automotive applications including engine control units and ADAS sensor interfaces |
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 marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts forward current during fault if polarity reversed |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates reverse breakdown when VWM exceeded, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients like ISO 7637-2 Pulse 1/2a/5a without degradation under defined test conditions |
| Low clamping ratio (VC/VWM = 1.63) | Minimizes voltage overshoot on protected ICs, reducing risk of latch-up or gate oxide damage |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without moisture-related popcorning or delamination |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<1 μA) across temperature and lifetime |
| AEC-Q101 qualification | Validated for automotive use including vibration, temperature cycling, and HTRB stress testing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in body control modules against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground, clamping transients within 1 ns to limit voltage seen by downstream regulators and microcontrollers. Use Value: Withstands 600 W pulses and maintains VC ≤ 37.5 V, preventing brownout or reset of 3.3 V/5 V logic powered from the rail. | Use Scenario: Shielding analog outputs of pressure or temperature sensors in factory automation systems from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point, shunting fast transients before they reach precision op-amps or ADC front-ends. Use Value: Low leakage (<1 μA) avoids signal offset errors; 37.5 V clamping preserves integrity of 0–10 V or 4–20 mA output ranges. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Safeguarding PoE-powered network switches against lightning-induced surges on 48 V input lines. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC/DC converters, absorbing bulk surge energy before secondary protection stages. Use Value: 600 W rating handles multi-kV induced surges; SMB footprint allows compact placement near input connectors without sacrificing power handling. | Use Scenario: Adding robust ESD immunity to USB 2.0 data lines and VBUS in portable audio devices. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line (cathode to VIN, anode to ground), blocking reverse current while clamping hot-swap and ESD events. Use Value: Clamps 8 kV contact ESD to <37.5 V in <1 ns, preserving USB PHY functionality and avoiding system lockup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ27A | Same VBR range (25.7–28.4 V), identical SMB package, but rated for 400 W PPPM (vs. 600 W) | Limited to lower-energy transients; not recommended for automotive load dump or telecom lightning surges | Select P6SMB27AHE3/5B when 600 W surge margin is required; SMAJ27A suits cost-sensitive consumer applications with lower threat profiles |
| 1.5SMC27A | Higher power rating (1500 W), larger SMC (DO-214AB) package, same VBR and VC specs | Requires PCB area increase (~30% larger footprint); better suited for industrial mains-connected equipment | Choose P6SMB27AHE3/5B for space-constrained automotive or telecom boards; 1.5SMC27A where ultimate energy handling dominates layout constraints |
Compared with SMAJ27A and 1.5SMC27A, the P6SMB27AHE3/5B uniquely balances 600 W surge capability, SMB footprint, and AEC-Q101 qualification - making it optimal for automotive and high-reliability embedded power rail protection where board space and qualification compliance are critical.
Availability
P6SMB27AHE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom power supplies requiring stable component supply, AEC-Q101 compliance, and consistent 600 W transient suppression performance.
Supply support for P6SMB27AHE3/5B 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and communications systems where robustness, small size, and qualification compliance are mandatory.
FAQ
What is the clamping voltage of the P6SMB27AHE3/5B at its rated peak pulse current?
The P6SMB27AHE3/5B has a maximum clamping voltage (VC) of 37.5 V at its rated peak pulse current (IPPM) of 16.0 A, measured under the standard 10/1000 μs waveform. This value ensures protected circuits experience minimal overvoltage stress during surge events, and it is guaranteed across the full operating temperature range per the Vishay datasheet revision 09-Jan-2024.
Is the P6SMB27AHE3/5B suitable for automotive applications?
Yes, the P6SMB27AHE3/5B is AEC-Q101 qualified, as confirmed by its "HE3" suffix and documentation in Vishay's P6SMB series datasheet. It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and mechanical shock validation - making it appropriate for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS sensor interfaces.
What does the "5B" in P6SMB27AHE3/5B indicate?
The "5B" denotes the packaging configuration: 13-inch diameter plastic tape and reel, containing 3200 units per reel. This format supports high-volume automated SMT placement and is distinct from the "52" variant (7-inch reel, 750 units). The "HE3" portion confirms RoHS-compliant construction and AEC-Q101 qualification, per Vishay's ordering information table.
How does the P6SMB27AHE3/5B compare to bidirectional TVS diodes in the same series?
The P6SMB27AHE3/5B is unidirectional, meaning it protects only against reverse-polarity transients on positive rails. Bidirectional variants (e.g., P6SMB27CA) offer symmetrical clamping for AC-coupled or floating lines but exhibit slightly higher VC and reduced IPPM at the same VWM. For 24 V DC automotive rails, the unidirectional P6SMB27AHE3/5B provides tighter clamping and better surge margin than its bidirectional counterpart.
What is the maximum junction temperature rating for the P6SMB27AHE3/5B?
The P6SMB27AHE3/5B has a maximum junction temperature (TJ) rating of +150 °C, as specified in the Absolute Maximum Ratings table of the Vishay P6SMB datasheet. This allows reliable operation in high-ambient environments such as engine compartments or enclosed industrial drives, provided thermal design accounts for its RθJA of 100 °C/W on standard 0.2" × 0.2" copper pads.
P6SMB27AHE3/5B 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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB27AHE3/5B FAQ
1.How can I place an order for P6SMB27AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27AHE3/5B 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 P6SMB27AHE3/5B reliable?
The price and inventory of P6SMB27AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB27AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27AHE3/5B?
P6SMB27AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27AHE3/5B 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 P6SMB27AHE3/5B?
For technical support, including P6SMB27AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27AHE3/5B requirements.
6.How does Aetrix verify that P6SMB27AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB27AHE3/5B 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 P6SMB27AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB27AHE3/5B?
All P6SMB27AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27AHE3/5B, 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 P6SMB27AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB27AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27AHE3/5B Tags
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