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Vishay General Semiconductor - Diodes Division P6SMB15AHM3/I
- Part No.:
- P6SMB15AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15AHM3/I.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,680
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Product details
Overview
P6SMB15AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 15 V standoff voltage (VWM = 12.8 V), 21.2 V clamping voltage at 28.3 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform - deployed for overvoltage protection of MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB15AHM3/I datasheet, P6SMB15AHM3/I pinout, P6SMB15AHM3/I application, or P6SMB15AHM3/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), halogen-free RoHS compliance, and bidirectional alternative options - all confirmed from Vishay's official P6SMB Series specification document (Rev. 09-Jan-2024, Doc. #88370).
Technical Context
The P6SMB15AHM3/I operates as a unidirectional avalanche diode with glass-passivated junction, responding to transients in <1 ps with low incremental surge resistance and stable clamping performance across -65 °C to +150 °C junction temperature range. Its 10/1000 μs waveform rating reflects standardized IEC 61000-4-5 surge immunity testing conditions.
Designed for automated SMT placement, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), JESD 201 Class 2 whisker resistance, and UL 94 V-0 flammability for epoxy molding compound - confirming suitability for high-reliability commercial and AEC-Q101–qualified automotive applications when ordered with HM3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12.8 V - Maximum continuous reverse voltage before clamping begins; ensures no conduction during normal operation of protected 12 V systems. |
| VBR (Breakdown) | 14.3–15.8 V at 1 mA - Tight 10% tolerance window guarantees predictable turn-on threshold under transient stress. |
| VC (Clamping) | 21.2 V at 28.3 A - Limits downstream voltage to safe levels during 600 W surge events, protecting 24 V-rated ICs and MOSFETs. |
| IPPM | 28.3 A - Peak pulse current capability with 10/1000 μs waveform; defines maximum transient energy absorption per event. |
| PPPM | 600 W - Peak pulse power rating; enables robust protection against lightning-induced surges and inductive switching spikes. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
| TJ max. | +150 °C - Maximum operating junction temperature; supports use in under-hood automotive and industrial enclosures. |
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 | Forward current entry / Reverse voltage reference | Connected to system ground or lower-potential rail; defines reference point for clamping action. |
| Cathode | Transient current sink / Clamping output | Connected to protected line (e.g., sensor VCC or signal); conducts surge current to ground during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-event suppression of severe transients such as ISO 7637-2 Pulse 1/2a/5a in automotive ECUs without thermal runaway. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control, ADAS, and body electronics. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC JS709B; eliminates brominated flame retardants for safer end-of-life processing. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C), eliminating bake requirements and reducing manufacturing cost. |
| Glass-passivated junction | Provides stable leakage (<1 μA at VWM) and repeatable breakdown characteristics over 10+ years of field operation. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments subject to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor VOUT and chassis ground to clamp induced spikes up to 600 W without affecting DC accuracy. Use Value: Maintains signal integrity below 21.2 V clamping threshold while surviving repeated 12 V system transients per ISO 16750-2. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and ESD from operator interfaces. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminal and common rail to shunt fast-rising transients before reaching optocoupler input stage. Use Value: Prevents false triggering and latch-up in microcontroller GPIOs by limiting transient voltage to ≤21.2 V within nanoseconds. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD chargers where 12–15 V rails feed buck converters. IC Role / Device Role / Timing Role: Unidirectional clamping device placed at converter input to absorb residual surges escaping primary-side MOVs and Y-capacitors. Use Value: Adds fail-safe layer with <1 μA leakage at 12.8 V, ensuring no standby power penalty while meeting UL 62368-1 surge withstand requirements. |
Use Scenario: Protecting RS-485 transceiver pins in base station backhaul equipment subjected to lightning-induced longitudinal surges on twisted-pair lines. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (one per line) referenced to local ground to suppress common-mode transients without distorting differential signaling. Use Value: Enables >1 kV (10/700 μs) immunity per ITU-T K.21 while preserving signal rise time due to low junction capacitance (<100 pF typical). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/5B | Same SMB package, 15 V VWM, but rated for 400 W PPPM (vs. 600 W); RθJA = 110 °C/W; no AEC-Q101 option. | Limited to lower-energy surges (e.g., IEC 61000-4-2 ESD only); not qualified for automotive under-hood use. | Select when cost sensitivity outweighs peak surge margin and automotive qualification is unnecessary. |
| P6SMB15CAHM3/I | Bidirectional variant with identical VWM (12.8 V), same 600 W rating, AEC-Q101 and HM3 compliance - but symmetrical clamping in both polarities. | Required for AC-coupled or floating signal lines (e.g., Ethernet PHY, audio jacks) where polarity reversal may occur. | Choose for bidirectional protection needs; shares same footprint and thermal behavior but differs in polarity marking and test configuration. |
Compared with SMAJ15A-E3/5B, P6SMB15AHM3/I delivers 50% higher surge power headroom and automotive qualification; versus P6SMB15CAHM3/I, it offers optimized unidirectional clamping for grounded DC rails - enabling tighter layout control and avoiding unnecessary bidirectional leakage paths.
Availability
P6SMB15AHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, consumer power adapter secondary stages, and telecom line interface designs requiring stable component supply with halogen-free, AEC-Q101–qualified TVS protection.
Supply support for P6SMB15AHM3/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, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in space-constrained SMT designs, with focus on automotive, industrial, and telecom infrastructure where AEC-Q101 compliance, 600 W surge handling, and MSL Level 1 process compatibility are mandatory.
FAQ
What is the clamping voltage of P6SMB15AHM3/I at its rated peak pulse current?
The P6SMB15AHM3/I has a maximum clamping voltage (VC) of 21.2 V at 28.3 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per Vishay's specification document #88370 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs rated for 24 V operation remain within safe operating limits. The P6SMB15AHM3/I maintains this clamping performance across its full operating temperature range.
Is P6SMB15AHM3/I qualified for automotive applications?
Yes, P6SMB15AHM3/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's P6SMB Series datasheet (Rev. 09-Jan-2024). The "HM3" designation indicates halogen-free, RoHS-compliant construction with full AEC-Q101 stress testing - including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This makes P6SMB15AHM3/I suitable for under-hood and chassis-mounted automotive modules where reliability under thermal and mechanical stress is mandatory.
What does the "I" suffix mean in P6SMB15AHM3/I?
The "I" suffix in P6SMB15AHM3/I denotes the packaging configuration: 13-inch diameter plastic tape and reel, containing 3200 units per reel. This is specified in Vishay's Ordering Information table (page 3 of doc #88370). The "HM3" portion confirms halogen-free, RoHS-compliant, and AEC-Q101–qualified construction, while the "I" is purely a delivery format code - distinct from electrical or reliability characteristics. No functional difference exists between /H (7" reel, 750 units) and /I variants of P6SMB15AHM3/I.
How does P6SMB15AHM3/I differ from P6SMB15AHE3/I?
P6SMB15AHM3/I and P6SMB15AHE3/I share identical electrical specifications (VWM = 12.8 V, VC = 21.2 V, PPPM = 600 W) and AEC-Q101 qualification, but differ in material composition: HM3 denotes halogen-free epoxy molding compound, whereas HE3 uses standard RoHS-compliant (but halogen-containing) material. Both meet JESD 201 Class 2 whisker resistance and MSL Level 1, but P6SMB15AHM3/I satisfies stricter environmental mandates like JEDEC JS709B and certain OEM green-material requirements where bromine/chlorine content must be minimized.
Can P6SMB15AHM3/I be used in bidirectional signal protection?
No, P6SMB15AHM3/I is a unidirectional TVS diode - its cathode band marking and asymmetric IV curve allow conduction only when cathode is more positive than anode. For bidirectional signal lines (e.g., RS-485, USB D+/D−, audio), the bidirectional variant P6SMB15CAHM3/I must be used instead. Using P6SMB15AHM3/I on AC or floating signals risks failure during negative transients, as it lacks reverse conduction capability. The "A" in the base part number explicitly denotes unidirectional configuration per Vishay's naming convention.
P6SMB15AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28.3A
- 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)
P6SMB15AHM3/I FAQ
1.How can I place an order for P6SMB15AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15AHM3/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 P6SMB15AHM3/I reliable?
The price and inventory of P6SMB15AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15AHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB15AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15AHM3/I?
P6SMB15AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15AHM3/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 P6SMB15AHM3/I?
For technical support, including P6SMB15AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15AHM3/I requirements.
6.How does Aetrix verify that P6SMB15AHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB15AHM3/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 P6SMB15AHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB15AHM3/I?
All P6SMB15AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15AHM3/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 P6SMB15AHM3/I part is unused and in its original packaging.
Return procedure for P6SMB15AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15AHM3/I Tags
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