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Vishay General Semiconductor - Diodes Division P6SMB24AHM3_A/I
- Part No.:
- P6SMB24AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24AHM3_A/I.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,649
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Product details
Overview
P6SMB24AHM3_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 24 V standoff voltage (VWM), 33.2 V maximum clamping voltage at 18.1 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and DC power rail surge suppression.
For engineers reviewing the P6SMB24AHM3_A/I datasheet, P6SMB24AHM3_A/I pinout, P6SMB24AHM3_A/I application, or P6SMB24AHM3_A/I equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, and verified clamping performance under repetitive 0.01% duty cycle surges.
Technical Context
The P6SMB24AHM3_A/I operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to limit transient overvoltage before sensitive downstream circuitry is stressed. Its breakdown voltage is specified at 22.8–25.2 V (min/max) with 1 mA test current, and it maintains stable clamping up to 150 °C junction temperature.
This device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports automated SMT placement, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification per ordering code conventions in the Vishay P6SMB family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20.5 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown Voltage) | 22.8–25.2 V at 1 mA - Confirmed avalanche conduction threshold range under standardized test conditions |
| VC (Clamping Voltage) | 33.2 V at 18.1 A IPPM - Measured peak voltage across device during 10/1000 μs transient, defining protection ceiling |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability with 0.01% duty cycle, critical for lightning/inductive spike immunity |
| ID (Reverse Leakage) | 1.0 μA at 20.5 V - Low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | 150 °C - Maximum allowable junction temperature enabling operation in under-hood automotive and industrial environments |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity with cathode band marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, qualified to JESD 201 Class 2 whisker standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line's lower-potential side | Defines reference node for clamping action - ties to GND or return path in unidirectional configuration |
| Cathode | Current exit point in forward bias; marked by band, connects to protected line's higher-potential side | Acts as the clamping node - placed between supply rail and ground to shunt surge current away from ICs/MOSFETs |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - required for engine control, ADAS sensor modules |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation when mounted per recommended 5.0 mm × 5.0 mm copper pads |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives - critical for industrial field deployments |
| MSL Level 1 rating | Enables single-reflow assembly without baking; compatible with standard 260 °C Pb-free reflow profiles used in high-volume manufacturing |
| Halogen-free & RoHS-compliant (HM3) | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for sustainable electronics production |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 24 V-rated interface ICs during 12 V system load dump events (up to 35 V, 400 ms). |
Use Scenario: Safeguarding digital input channels of programmable logic controllers against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 24 V DC input lines, positioned upstream of optocoupler or Schmitt trigger input stages. Use Value: Maintains signal integrity by limiting transient overshoot to ≤33.2 V, ensuring reliable logic-level recognition under repeated 1 kV/μs edge transients. |
| DC Power Rail Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Secondary overvoltage protection on 24 V DC power distribution boards feeding motor drivers and solenoid controllers. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor to absorb inductive kickback from switched loads. Use Value: Limits rail voltage excursions to 33.2 V during 100 A surge events, preventing overvoltage shutdown of DC-DC converters and gate drivers. |
Use Scenario: Reverse-polarity and ESD protection on 5 V USB VBUS lines in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Unidirectional TVS between VBUS and GND, leveraging 20.5 V standoff to avoid interference with 5 V regulation. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <33.2 V within <1 ns, protecting USB controller PHY without affecting steady-state operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/5B | Same SMB package, 24 V VWM, but only commercial-grade (not AEC-Q101 qualified); 33.2 V VC, 600 W PPPM | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Select when cost sensitivity outweighs automotive compliance requirements and lifecycle traceability is not required |
| 1.5SMC24AHE3_A | Higher-power 1500 W variant in larger SMC (DO-214AB) package; identical 24 V VWM and 33.2 V VC, but 36.2 A IPPM | Requires PCB layout change due to larger 7.11 mm × 6.22 mm footprint; better suited for high-energy surge zones | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space permits SMC footprint |
Compared with SMAJ24A-E3/5B, P6SMB24AHM3_A/I adds AEC-Q101 qualification and halogen-free compliance without sacrificing clamping performance; versus 1.5SMC24AHE3_A, it trades peak surge capacity for compact SMB footprint and automotive suitability - making it optimal for space-constrained, safety-critical 24 V systems.
Availability
P6SMB24AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and DC power distribution systems requiring stable component supply, full AEC-Q101 traceability, and halogen-free compliance.
Supply support for P6SMB24AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for robust clamping, automated assembly, and extended thermal operation without derating.
FAQ
What is the clamping voltage of the P6SMB24AHM3_A/I under a 10/1000 μs surge?
The P6SMB24AHM3_A/I has a maximum clamping voltage (VC) of 33.2 V at 18.1 A peak pulse current (IPPM) when subjected to a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads), and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB24AHM3_A/I maintains this clamping performance across its operational temperature range up to 150 °C junction temperature.
Is the P6SMB24AHM3_A/I qualified for automotive applications?
Yes, the P6SMB24AHM3_A/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and Vishay's ordering nomenclature documentation. It undergoes stress testing for temperature cycling, highly accelerated life testing (HALT), and ESD robustness per AEC-Q101 Rev D. The P6SMB24AHM3_A/I is intended for use in engine control units, body electronics, and ADAS sensor interfaces where automotive-grade reliability is mandatory.
What does the "HM3" suffix indicate in P6SMB24AHM3_A/I?
The "HM3" suffix in P6SMB24AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering guide, HM3 indicates compliance with IPC-1752A material declarations, absence of brominated flame retardants, and validation to automotive reliability standards. The "_A/I" further specifies 13-inch tape-and-reel packaging (I) and revision level A, confirming full traceability for production use.
Can the P6SMB24AHM3_A/I be used in bidirectional configurations?
No, the P6SMB24AHM3_A/I is a unidirectional TVS diode, as indicated by the "A" suffix (versus "CA" for bidirectional variants). Its cathode band marking and electrical characteristics - including forward surge rating (IFSM = 100 A) and reverse leakage spec - are defined only for anode-to-cathode polarity. For bidirectional protection, engineers must select a part such as P6SMB24CAHM3_A/I, which exhibits symmetrical clamping in both directions.
What is the thermal resistance of the P6SMB24AHM3_A/I?
The P6SMB24AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended pad layout, and a junction-to-lead resistance (RθJL) of 20 °C/W. These values assume standard SMB (DO-214AA) mounting per Vishay's mechanical drawings - using 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. The P6SMB24AHM3_A/I's 150 °C maximum junction temperature enables sustained operation in high-ambient environments when heat sinking is optimized.
P6SMB24AHM3_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):
- 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)
P6SMB24AHM3_A/I FAQ
1.How can I place an order for P6SMB24AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24AHM3_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 P6SMB24AHM3_A/I reliable?
The price and inventory of P6SMB24AHM3_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 P6SMB24AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB24AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24AHM3_A/I?
P6SMB24AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24AHM3_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 P6SMB24AHM3_A/I?
For technical support, including P6SMB24AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24AHM3_A/I requirements.
6.How does Aetrix verify that P6SMB24AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB24AHM3_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 P6SMB24AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB24AHM3_A/I?
All P6SMB24AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24AHM3_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 P6SMB24AHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB24AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24AHM3_A/I Tags
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