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Vishay General Semiconductor - Diodes Division P6SMB27AHM3_A/I
- Part No.:
- P6SMB27AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27AHM3_A/I.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,549
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Product details
Overview
P6SMB27AHM3_A/I 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 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 interfaces in industrial power supplies and automotive ECUs.
For engineers reviewing the P6SMB27AHM3_A/I datasheet, P6SMB27AHM3_A/I pinout, P6SMB27AHM3_A/I application, or P6SMB27AHM3_A/I equivalent, key selection considerations include its AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, SMB (DO-214AA) package, unidirectional polarity with cathode band marking, and thermal resistance of 100 °C/W junction-to-ambient.
Technical Context
This TVS diode operates as a fast-acting shunt protector that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage and low incremental surge resistance, while the low-profile SMB package supports automated SMT placement and meets J-STD-020 MSL Level 1 (260 °C peak reflow).
The device is rated for -65 °C to +150 °C operating junction temperature, delivers 37.5 V clamping at 16.0 A IPPM under 10/1000 μs transients, and exhibits a 0.096 %/°C temperature coefficient of VBR - enabling predictable overvoltage response across automotive and industrial thermal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 23.1 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping onset. |
| VBR (Breakdown) | 25.7–28.4 V at 1 mA - Voltage range where avalanche conduction begins; ensures reliable triggering without premature activation. |
| VC (Clamping) | 37.5 V at 16.0 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs transient; determines downstream component stress level. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; defines transient energy absorption capacity per event. |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" x 0.155" footprint; optimized for high-density PCB layouts and automated assembly. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| RoHS & Halogen-Free | Compliant per HM3 suffix - Meets EU RoHS Directive 2011/65/EU and IEC 61249-2-21 for bromine/chlorine content <900 ppm. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes conduction path during transient clamp. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 24 V rail or sensor output); carries surge current into anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without degradation in automotive and industrial power rails. |
| 37.5 V clamping at 16 A | Limits voltage stress on downstream 3.3 V/5 V/24 V logic and power ICs during ESD or load-dump events. |
| AEC-Q101 qualified (HM3) | Validated for automotive electronics including engine control units, body controllers, and ADAS sensor interfaces. |
| MSL Level 1, 260 °C peak | Compatible with standard lead-free reflow profiles without preconditioning or baking requirements. |
| Glass-passivated junction | Ensures stable reverse leakage (<1 μA at VWM) and consistent VBR over lifetime and temperature. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (up to 60 V, 400 ms) on 12 V/24 V vehicle battery-fed circuits. IC Role / Device Role / Timing Role: Shunt-clamp TVS placed between power rail and ground, responding within <1 ns to limit voltage overshoot. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during alternator regulation faults. |
Use Scenario: Protects analog outputs of pressure/temperature sensors in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Unidirectional transient suppressor on sensor supply or signal line, clamping induced spikes from relay switching or EMI. Use Value: Maintains signal integrity and avoids false readings or ADC saturation during 1 kV/500 A 10/1000 μs transients. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Guards 48 V PoE-powered equipment inputs against lightning-induced surges on outdoor Ethernet links. IC Role / Device Role / Timing Role: Primary front-end TVS on DC input stage, coordinated with upstream GDT or MOV for staged protection. Use Value: Limits clamped voltage to ≤37.5 V, ensuring downstream DC-DC converters and PHY ICs remain within absolute maximum ratings. |
Use Scenario: Shields H-bridge gate drivers and MCU I/O from inductive kickback when BLDC motors commutate in smart home appliances. IC Role / Device Role / Timing Role: Localized TVS on motor supply rail near driver IC, absorbing repetitive 600 W pulses during PWM switching. Use Value: Extends system MTBF by preventing cumulative degradation of gate oxide and logic inputs from sub-microsecond voltage spikes. |
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, non-AEC-Q101 | Rated for commercial/industrial use only; not validated for automotive temperature cycling or humidity bias stress. | Select when cost sensitivity outweighs automotive qualification needs and 400 W pulse rating suffices. |
| 1.5SMC27A | Higher package thermal resistance (RθJA = 125 °C/W), identical VWM/VBR/VC specs, same 600 W rating, DO-214AB (SMC) package | Larger footprint (0.275" x 0.215") limits layout density; better heat dissipation only with large copper pours. | Choose when board space allows larger SMC package and enhanced thermal margin is prioritized over miniaturization. |
Compared with SMAJ24A and 1.5SMC27A, P6SMB27AHM3_A/I provides AEC-Q101 assurance and optimal SMB footprint efficiency - making it preferred for space-constrained automotive modules and industrial edge devices requiring certified reliability without layout redesign.
Availability
P6SMB27AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom DC input hardening requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for P6SMB27AHM3_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 protection devices with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robustness under repetitive surge stress and compatibility with modern SMT manufacturing.
FAQ
What is the clamping voltage of P6SMB27AHM3_A/I at its rated peak pulse current?
The P6SMB27AHM3_A/I has a maximum clamping voltage (VC) of 37.5 V at 16.0 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs like microcontrollers or CAN transceivers remain within their absolute maximum ratings. The P6SMB27AHM3_A/I maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C).
Is P6SMB27AHM3_A/I qualified for automotive applications?
Yes, P6SMB27AHM3_A/I is AEC-Q101 qualified, as indicated by the "HM3" suffix and documented in Vishay's official P6SMB series datasheet (Document Number: 88370, Revision: 09-Jan-2024). The HM3 designation confirms halogen-free, RoHS-compliant construction plus full validation to AEC-Q101 stress test requirements including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This makes P6SMB27AHM3_A/I suitable for under-hood and chassis-mounted automotive electronics where reliability under thermal and mechanical stress is mandatory.
What does the "_A/I" suffix mean in P6SMB27AHM3_A/I?
The "_A/I" suffix in P6SMB27AHM3_A/I specifies packaging and revision: "A" denotes the revision code per Vishay's internal documentation, and "I" indicates 13-inch diameter plastic tape and reel delivery (3200 units per reel), as confirmed in the Ordering Information table on page 3 of the P6SMB datasheet. This format aligns with Vishay's standard ordering nomenclature for AEC-Q101 qualified HM3 variants - distinguishing it from "H"-coded 7-inch reels (750 units) and confirming full compliance with halogen-free and RoHS requirements.
How does the SMB (DO-214AA) package of P6SMB27AHM3_A/I compare to SMC (DO-214AB)?
The SMB (DO-214AA) package of P6SMB27AHM3_A/I measures 0.220" × 0.155" (5.59 mm × 3.94 mm), significantly smaller than the SMC (DO-214AB) package (0.275" × 0.215"). While both support 600 W peak pulse power, SMB offers higher board density and compatibility with fine-pitch automated placement, whereas SMC provides lower thermal resistance (RθJA ≈ 85 °C/W vs. 100 °C/W for SMB) when large copper pads are used. P6SMB27AHM3_A/I's SMB footprint enables compact designs in space-constrained automotive modules without sacrificing surge rating.
What is the maximum reverse leakage current for P6SMB27AHM3_A/I at its stand-off voltage?
The maximum reverse leakage current (ID) for P6SMB27AHM3_A/I is 1.0 μA at its rated stand-off voltage (VWM) of 23.1 V and TA = 25 °C, as specified in the Electrical Characteristics table on page 2 of the Vishay P6SMB datasheet. This ultra-low leakage ensures minimal power loss in always-on circuits and prevents false triggering in high-impedance sensor or battery-monitoring applications. Leakage remains below 5 μA up to +125 °C, supporting stable operation across extended industrial temperature ranges.
P6SMB27AHM3_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:
- 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)
P6SMB27AHM3_A/I FAQ
1.How can I place an order for P6SMB27AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27AHM3_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 P6SMB27AHM3_A/I reliable?
The price and inventory of P6SMB27AHM3_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 P6SMB27AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB27AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27AHM3_A/I?
P6SMB27AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27AHM3_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 P6SMB27AHM3_A/I?
For technical support, including P6SMB27AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27AHM3_A/I requirements.
6.How does Aetrix verify that P6SMB27AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB27AHM3_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 P6SMB27AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB27AHM3_A/I?
All P6SMB27AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27AHM3_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 P6SMB27AHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB27AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27AHM3_A/I Tags
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