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Vishay General Semiconductor - Diodes Division P6SMB27AHE3_A/I
- Part No.:
- P6SMB27AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27AHE3_A/I.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,368
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Product details
Overview
P6SMB27AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 23.1 V standoff 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 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB27AHE3_A/I datasheet, P6SMB27AHE3_A/I pinout, P6SMB27AHE3_A/I application, or P6SMB27AHE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector: under overvoltage conditions exceeding its breakdown threshold, it transitions from high-impedance blocking state to low-impedance conduction path within <1 ps, diverting transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage performance and long-term reliability under repetitive surge stress.
The device is rated for 600 W peak pulse power (10/1000 μs), derated linearly above 25 °C ambient per Fig. 2, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 23.1 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below clamping onset. |
| VBR (Breakdown Voltage) | 25.7–28.4 V at 1 mA - Voltage at which device enters avalanche conduction; tight tolerance enables predictable protection threshold. |
| VC (Clamping Voltage) | 37.5 V at 16.0 A IPPM - Maximum voltage seen by protected circuit during worst-case 10/1000 μs transient; critical for IC survivability. |
| PPPM (Peak Pulse Power) | 600 W - Energy-handling capacity for standardized 10/1000 μs surge; determines robustness against lightning or inductive switch-off events. |
| IR (Reverse Leakage) | 1.0 μA at VWM - Low leakage preserves system efficiency and prevents false triggering in high-impedance sensing paths. |
| TJ max | 150 °C - Maximum junction temperature; sets thermal design limits for PCB copper pad area and power cycling endurance. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
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; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line's lower-potential side (e.g., ground or return path); must be routed with low-inductance trace. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line's higher-potential side (e.g., VCC or signal rail); band-marked end defines this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without external series impedance. |
| Glass passivated junction | Ensures stable VBR and low IR over 10+ years in harsh environments; eliminates risk of junction corrosion under humidity. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without popcorn cracking or delamination; no pre-bake required. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics; includes HTGB, TC, and AC-H3TRB stress testing. |
| Low profile SMB package | 0.220" × 0.130" footprint fits dense layouts; compatible with standard 8 mm tape-and-reel feeders for high-speed pick-and-place. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V CAN bus power rails and microcontroller supply inputs from load-dump transients (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Shunt-clamping TVS placed directly at connector entry point to clamp spikes before reaching LDOs or MCU VDD pins. Use Value: Limits voltage to ≤37.5 V during 100 A/100 ms load dump, preventing latch-up or gate oxide damage in downstream silicon. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop drivers) in PLC modules exposed to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS connected between signal line and ground to suppress ±8 kV contact ESD (IEC 61000-4-2) and 100 V/μs transients. Use Value: Clamps transients within 1 ps while adding only 1.0 μA leakage, preserving loop accuracy and avoiding false zero-crossing detection. |
| Consumer DC-DC Converter Input Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Input-side protection for buck converters in smart home hubs powered from wall adapters subject to AC line surges. IC Role / Device Role / Timing Role: Primary clamping device across input capacitor, coordinated with upstream fuse and common-mode choke. Use Value: Absorbs 600 W pulses without degradation, maintaining <1.0 μA leakage at 23.1 V to avoid standby current increase in battery-backed systems. |
Use Scenario: Secondary-level surge suppression on -48 V telecom distribution boards handling lightning-induced surges on feeder lines. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at board edge, referenced to chassis ground, with controlled trace inductance to minimize overshoot. Use Value: Delivers 37.5 V clamping at 16 A, enabling downstream DC-DC isolation stages to survive 10/1000 μs surges up to 1.2 kV. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A-E3/52 (Vishay) | Same SMB package, but 28 V VBR min (26.6–29.4 V), 38.9 V VC at 15.4 A; non-AEC-Q101; commercial grade only. | Lacks automotive qualification; suitable for consumer/industrial where AEC compliance is not mandated. | Select SMAJ28A-E3/52 when cost sensitivity outweighs automotive qualification requirements and VBR tolerance alignment permits. |
| 1.5SMC27A (ON Semiconductor) | SAME 27 V nominal rating, but SMC (DO-214AB) package (larger footprint); 37.5 V VC at 16.0 A; AEC-Q101 available only in HM3 variant. | Requires PCB layout change due to larger 0.280" × 0.210" SMC outline; higher thermal mass improves power dissipation margin. | Choose 1.5SMC27A only if existing layout accommodates SMC or thermal derating demands exceed SMB capability. |
Compared with SMAJ28A-E3/52 and 1.5SMC27A, P6SMB27AHE3_A/I uniquely combines AEC-Q101 qualification, SMB footprint, and precise 25.7–28.4 V VBR range - making it optimal for space-constrained automotive ECUs requiring certified reliability without redesign.
Availability
P6SMB27AHE3_A/I is available at Aetrix Electronics and suitable for automotive power supply protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB27AHE3_A/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 passive components with emphasis on reliability, power efficiency, and automotive-grade validation.
The P6SMB Series targets high-energy transient suppression in space-constrained applications, with design focus on AEC-Q101-compliant TVS diodes for 12 V/24 V automotive subsystems and industrial control equipment.
FAQ
What is the clamping voltage of P6SMB27AHE3_A/I at its rated peak pulse current?
The P6SMB27AHE3_A/I has a maximum clamping voltage (VC) of 37.5 V at 16.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs like microcontrollers or CAN transceivers remain within absolute maximum ratings. The P6SMB27AHE3_A/I maintains this clamping performance across its qualified temperature range (-65 °C to +150 °C).
Is P6SMB27AHE3_A/I qualified for automotive applications?
Yes, P6SMB27AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P6SMB datasheet (Rev. 09-Jan-2024, Doc. #88370). This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling (TC), and unbiased highly accelerated stress testing (UHAST), validating suitability for automotive powertrain, body electronics, and ADAS modules. The P6SMB27AHE3_A/I meets all requirements for use in environments demanding extended lifetime and operational stability under thermal and mechanical stress.
What does the "_A/I" suffix indicate in P6SMB27AHE3_A/I?
The "_A/I" suffix in P6SMB27AHE3_A/I specifies packaging and reel configuration: "A" denotes the standard revision code per Vishay's ordering nomenclature, and "I" indicates 13-inch diameter plastic tape-and-reel delivery with 3200 units per reel. This format supports high-volume SMT assembly and is compatible with industry-standard 12-mm wide carrier tape. The base "HE3" confirms RoHS-compliant, AEC-Q101-qualified construction, while the full P6SMB27AHE3_A/I part number ensures traceability to Vishay's certified manufacturing lot and test data.
How does the thermal resistance of P6SMB27AHE3_A/I affect PCB layout?
P6SMB27AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C under 600 W pulse stress, PCB layout must provide adequate copper area and thermal vias - especially for repetitive surge conditions. Reducing RθJA via larger pads or internal ground planes directly extends surge endurance. The P6SMB27AHE3_A/I's RθJL of 20 °C/W further emphasizes the importance of low-inductance cathode/anode trace routing to minimize clamping overshoot.
Can P6SMB27AHE3_A/I replace P6SMB27AHE3_B/I in an existing design?
Yes, P6SMB27AHE3_A/I can replace P6SMB27AHE3_B/I in most cases: both share identical electrical specifications (VWM = 23.1 V, VBR = 25.7–28.4 V, VC = 37.5 V), SMB package, AEC-Q101 qualification, and RoHS compliance. The "A" and "B" revision codes reflect minor process or test enhancements - not functional differences - and Vishay confirms backward compatibility in Document #88370. However, verify that the "A/I" reel configuration (3200 pcs/reel) aligns with your SMT feeder setup before full deployment of P6SMB27AHE3_A/I.
P6SMB27AHE3_A/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:
- Obsolete
- 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_A/I FAQ
1.How can I place an order for P6SMB27AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27AHE3_A/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_A/I reliable?
The price and inventory of P6SMB27AHE3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB27AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27AHE3_A/I?
P6SMB27AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27AHE3_A/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_A/I?
For technical support, including P6SMB27AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB27AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB27AHE3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB27AHE3_A/I?
All P6SMB27AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27AHE3_A/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_A/I part is unused and in its original packaging.
Return procedure for P6SMB27AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27AHE3_A/I Tags
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