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Vishay General Semiconductor - Diodes Division P6SMB24AHE3_B/I
- Part No.:
- P6SMB24AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24AHE3_B/I.pdf
- Description:
- 600W,24V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,056
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Product details
Overview
P6SMB24AHE3_B/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 24 V standoff voltage (VWM), 25.2 V maximum breakdown voltage (VBR), 33.2 V clamping voltage at 18.1 A peak pulse current, 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 P6SMB24AHE3_B/I datasheet, P6SMB24AHE3_B/I pinout, P6SMB24AHE3_B/I application, or P6SMB24AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
The P6SMB24AHE3_B/I operates as a silicon avalanche diode that enters breakdown when reverse voltage exceeds its VBR (22.8–25.2 V), diverting transient energy to ground while limiting downstream voltage to ≤33.2 V. Its glass-passivated junction ensures stable leakage (<1.0 μA at 20.5 V) and fast response time (<1.0 ns), critical for protecting sensitive CMOS inputs and microcontroller I/O pins.
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to 150 °C junction temperature under pulsed conditions. The device is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and meets J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20.5 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC bias margin. |
| VBR (Breakdown Voltage) | 22.8–25.2 V at 1.0 mA test current - Precise avalanche onset range ensuring consistent clamping threshold. |
| VC (Clamping Voltage) | 33.2 V at 18.1 A IPPM - Maximum voltage seen by protected circuit during 10/1000 μs transient; determines protection margin. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability without failure under standardized surge waveform. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Ultra-low leakage preserves battery life and avoids false triggering in high-impedance circuits. |
| TJ max | 150 °C - Enables use in under-hood automotive environments and thermally constrained industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to ground or low-impedance return path; carries full surge current during clamping event. |
| Anode (unbanded end) | Protected line input | Connected to line being protected (e.g., 24 V supply rail or sensor signal); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control units and ADAS sensors requiring long-term reliability under thermal stress. |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1/2a/3a surges and IEC 61000-4-5 combination wave events without degradation. |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift in humid environments. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking; supports high-yield automated SMT production. |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage exposure to downstream components - critical for 3.3 V/5 V logic and analog front-ends. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 24 V battery-supplied ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 24 V rail and chassis ground to clamp transients above 33.2 V. Use Value: Prevents latch-up or gate oxide damage in MCU power regulators and CAN transceivers during vehicle cranking or alternator fault events. |
Use Scenario: 4–20 mA current loop or RS-485 bus connected to factory-floor pressure/temperature sensors. IC Role / Device Role / Timing Role: TVS mounted across differential pair or supply-to-ground to suppress ESD (IEC 61000-4-2) and induced surges. Use Value: Maintains signal integrity and prevents false readings or communication lockup caused by field-induced transients on long cable runs. |
| Consumer Power Adapter Input Protection | Telecom DC Power Feeding Protection |
Use Scenario: AC/DC adapter output stage feeding USB-C PD or PoE-powered devices. IC Role / Device Role / Timing Role: Primary-side TVS on +5 V/+12 V output rail to absorb switching noise and hot-plug spikes. Use Value: Eliminates need for secondary-stage filtering; reduces BOM count while meeting UL 62368-1 surge immunity requirements. |
Use Scenario: Remote radio unit powered via -48 V DC feed in 4G/5G base station cabinets. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part protects positive rail against positive-going surges only. Use Value: Provides cost-optimized single-direction clamping where negative transients are suppressed elsewhere in the system architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/5B | Same VWM/VBR/VC specs; SMA package (DO-214AC), higher RθJA (150 °C/W), no AEC-Q101 qualification. | Limited to commercial-grade consumer/industrial use; unsuitable for automotive under-hood deployment. | Select when cost sensitivity outweighs automotive qualification and thermal performance is less critical. |
| 1.5SMC24A | Same electrical specs but SMC (DO-214AB) package; larger footprint, higher IPPM (20.8 A), RθJA = 80 °C/W. | Better thermal dissipation but incompatible with dense SMB-layout PCBs; requires redesign of pad geometry. | Choose for high-reliability industrial systems needing higher surge margin and board space allows larger package. |
Compared with SMAJ24A-E3/5B and 1.5SMC24A, the P6SMB24AHE3_B/I uniquely combines AEC-Q101 qualification, SMB footprint compatibility, and optimized thermal resistance (RθJL = 20 °C/W) - making it the preferred choice for space-constrained automotive modules requiring zero-layout-change upgrades.
Availability
P6SMB24AHE3_B/I is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, and telecom power distribution systems requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for P6SMB24AHE3_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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6SMB Series was engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be eliminated through rigorous qualification and repeatable clamping performance.
FAQ
What is the clamping voltage of the P6SMB24AHE3_B/I under a 10/1000 μs surge?
The P6SMB24AHE3_B/I clamps to a maximum of 33.2 V when subjected to its rated peak pulse current of 18.1 A using the standard 10/1000 μs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during transient events.
Is the P6SMB24AHE3_B/I suitable for automotive applications?
Yes, the P6SMB24AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3_B". It undergoes stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life - making it appropriate for engine control, body electronics, and ADAS subsystems where reliability under thermal and vibration stress is mandatory.
What does the "_B/I" suffix mean in P6SMB24AHE3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB24AHE3_B/I series (applicable to 6.8 V–220 V variants), while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This format enables high-volume automated placement and satisfies automotive traceability requirements for lot-level documentation.
How does the P6SMB24AHE3_B/I differ from bidirectional TVS diodes like P6SMB24CA?
The P6SMB24AHE3_B/I is unidirectional and functions only during reverse-bias transients, with cathode marked for correct orientation. In contrast, P6SMB24CA is bidirectional and symmetrical - suppressing both positive and negative surges without polarity sensitivity. Use P6SMB24AHE3_B/I on DC rails where polarity is fixed; choose P6SMB24CA for AC-coupled or differential signal lines.
What is the maximum junction temperature rating for the P6SMB24AHE3_B/I?
The P6SMB24AHE3_B/I has a maximum junction temperature (TJ max) of +150 °C, verified per Vishay's thermal characterization. This rating supports operation in under-hood automotive environments and sealed industrial enclosures, provided PCB layout adheres to recommended 0.2" × 0.2" copper pad dimensions per terminal to maintain thermal resistance within spec.
P6SMB24AHE3_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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- 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)
P6SMB24AHE3_B/I FAQ
1.How can I place an order for P6SMB24AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24AHE3_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 P6SMB24AHE3_B/I reliable?
The price and inventory of P6SMB24AHE3_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 P6SMB24AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB24AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24AHE3_B/I?
P6SMB24AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24AHE3_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 P6SMB24AHE3_B/I?
For technical support, including P6SMB24AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB24AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB24AHE3_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 P6SMB24AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB24AHE3_B/I?
All P6SMB24AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24AHE3_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 P6SMB24AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB24AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24AHE3_B/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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