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Vishay General Semiconductor - Diodes Division P6SMB24AHM3/H
- Part No.:
- P6SMB24AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24AHM3/H.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,740
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Product details
Overview
P6SMB24AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 24 V standoff voltage (VWM = 20.5 V), 33.2 V clamping voltage at 18.1 A peak pulse current (10/1000 μs), and 600 W peak pulse power - designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power rails.
For engineers reviewing the P6SMB24AHM3/H datasheet, P6SMB24AHM3/H pinout, P6SMB24AHM3/H application, or P6SMB24AHM3/H equivalent, this device delivers AEC-Q101 qualification, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and verified clamping performance under repetitive 0.01% duty-cycle surge conditions - critical for robust overvoltage protection in space-constrained DC power interfaces.
Technical Context
The P6SMB24AHM3/H operates as a unidirectional avalanche diode with glass-passivated junction, enabling sub-nanosecond response to voltage transients. Its breakdown voltage (VBR) is specified at 22.8–25.2 V (min/max) with 1 mA test current, and it exhibits a temperature coefficient of +0.094 %/°C - ensuring predictable voltage shift across its -65 °C to +150 °C operating junction range.
Thermal design is supported by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), validated on 0.2" × 0.2" copper pads. It sustains 100 A non-repetitive forward surge (8.3 ms half-sine) and maintains <1 μA reverse leakage at 20.5 V, making it suitable for low-quiescent-current protection circuits where standby power integrity is essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 20.5 V - Maximum continuous reverse voltage before clamping begins; defines maximum normal operating bus voltage. |
| VBR (Breakdown) | 22.8–25.2 V @ 1 mA - Avalanche onset range; ensures reliable turn-on during transient events above nominal rail. |
| VC (Clamping) | 33.2 V @ 18.1 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; limits stress on downstream components. |
| PPPM | 600 W - Peak pulse power handling capability; supports high-energy transients without failure under standardized waveform. |
| IR (Leakage) | 1.0 μA max @ 20.5 V - Ultra-low reverse leakage preserves battery life and signal integrity in always-on systems. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and thermally dense industrial PCB layouts. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward-biased surge events. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 24 V rail); avalanches into conduction when voltage exceeds VBR to shunt surge current. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Handles high-energy transients from relay coil de-energization or motor commutation without degradation. |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets environmental compliance requirements for automotive and industrial end-equipment without compromising thermal or electrical performance. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without pre-baking or special handling. |
| Glass-passivated junction | Ensures stable VBR over time and temperature, with low leakage and high reliability in humid or contaminated environments. |
| AEC-Q101 qualified (HM3_B/H variant) | Validated for automotive applications including engine control units, body electronics, and ADAS power domains. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply lines in vehicle ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and LDO input to limit voltage excursions below IC absolute maximum ratings. Use Value: Clamps to 33.2 V at 18.1 A, preventing damage to 36 V-rated regulators and preserving system uptime during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding analog output lines of pressure or temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) TVS connected between signal and ground to suppress ESD and inductive coupling without loading the 4–20 mA loop. Use Value: Maintains signal fidelity with <1 μA leakage at 20.5 V, while responding in <1 ns to ±8 kV contact ESD per IEC 61000-4-2. |
| DC Motor Drive Gate Protection | Telecom Power Interface Protection |
|
Use Scenario: Safeguarding high-side N-channel MOSFET gates driven by microcontrollers in brushed DC motor controllers. IC Role / Device Role / Timing Role: Fast-clamping TVS placed between gate and source to absorb Miller-induced voltage spikes during switching transitions. Use Value: Sub-ns response and 33.2 V clamping prevent gate oxide rupture in MOSFETs rated for 30 V VGS(max), extending drive-stage lifetime. |
Use Scenario: Front-end surge suppression on 24 V PoE-powered telecom equipment inputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS mounted at board edge to divert bulk energy before reaching DC/DC converters and PHY ICs. Use Value: 600 W peak power rating meets ITU-T K.21 Basic Protection Level for outdoor telecom infrastructure. |
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 | Same VWM (20.5 V), identical SMB package, but rated for 400 W PPPM (vs. 600 W) and not AEC-Q101 qualified. | Lacks automotive qualification and lower surge margin; suitable only for commercial-grade non-automotive use. | Select SMAJ24A only if cost is primary constraint and AEC-Q101 or 600 W surge capability is not required. |
| SMCJ24A | Same VWM and clamping (33.2 V), but in larger SMC (DO-214AB) package with 1500 W PPPM rating and higher IPPM (38.9 A). | Requires larger PCB footprint and offers over-spec surge margin; may be over-engineered for compact 24 V rail designs. | Choose SMCJ24A when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board area permits larger package. |
Compared with SMAJ24A, P6SMB24AHM3/H delivers 50% higher surge power and automotive qualification; versus SMCJ24A, it achieves equivalent clamping performance in 40% less board area - optimizing cost, reliability, and layout density for space-constrained 24 V systems.
Availability
P6SMB24AHM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, DC motor drives, and telecom power interfaces requiring stable component supply, AEC-Q101 validation, and consistent halogen-free compliance.
Supply support for P6SMB24AHM3/H 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 optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for fast response, stable clamping, and robust packaging to meet stringent environmental and safety standards.
FAQ
What is the clamping voltage of P6SMB24AHM3/H at its rated peak pulse current?
The P6SMB24AHM3/H has a maximum clamping voltage (VC) of 33.2 V at 18.1 A peak pulse current under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay Document 88370 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is P6SMB24AHM3/H qualified for automotive applications?
Yes, P6SMB24AHM3/H is AEC-Q101 qualified, as confirmed by the "HM3_B" suffix in Vishay's ordering nomenclature and documented in Revision 09-Jan-2024 of datasheet 88370. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD - validating its suitability for under-hood and body-control module deployments where P6SMB24AHM3/H serves as primary overvoltage protection.
What does the "HM3/H" suffix indicate in P6SMB24AHM3/H?
The "HM3" portion denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance; "H" specifies 7-inch plastic tape-and-reel packaging (750 units per reel). This full suffix confirms P6SMB24AHM3/H meets automotive environmental requirements and supports automated SMT placement without flux residue or halogen-related corrosion risks during long-term field operation.
How does P6SMB24AHM3/H compare to bidirectional TVS diodes like P6SMB24CA?
P6SMB24AHM3/H is unidirectional and intended for DC rail protection where polarity is fixed (e.g., 24 V supply to ground), offering lower leakage (<1 μA) and tighter VBR tolerance than bidirectional variants. In contrast, P6SMB24CA provides symmetrical clamping for AC or floating signal lines but exhibits higher leakage and lacks cathode marking - making P6SMB24AHM3/H the preferred choice for regulated DC power domains requiring minimal standby current.
What is the maximum operating junction temperature for P6SMB24AHM3/H?
The maximum operating junction temperature (TJ max) for P6SMB24AHM3/H is +150 °C, as specified in the "Maximum Ratings" table of Vishay Document 88370. This rating enables reliable operation in high-ambient environments such as engine compartments or enclosed industrial enclosures, provided thermal design accounts for RθJA = 100 °C/W and uses minimum recommended 0.2" × 0.2" copper pads per terminal.
P6SMB24AHM3/H 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):
- 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/H FAQ
1.How can I place an order for P6SMB24AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24AHM3/H 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/H reliable?
The price and inventory of P6SMB24AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24AHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB24AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24AHM3/H?
P6SMB24AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24AHM3/H 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/H?
For technical support, including P6SMB24AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24AHM3/H requirements.
6.How does Aetrix verify that P6SMB24AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB24AHM3/H 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/H meets industry standards.
7.What is the process for return or replacement of P6SMB24AHM3/H?
All P6SMB24AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24AHM3/H, 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/H part is unused and in its original packaging.
Return procedure for P6SMB24AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24AHM3/H Tags
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