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Vishay General Semiconductor - Diodes Division P6SMB24AHE3/5B
- Part No.:
- P6SMB24AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24AHE3/5B.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,400
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Product details
Overview
P6SMB24AHE3/5B 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), 25.2 V minimum breakdown voltage (VBR), and 33.2 V maximum clamping voltage (VC) at 18.1 A peak pulse current (IPPM), designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power electronics.
For engineers reviewing the P6SMB24AHE3/5B datasheet, P6SMB24AHE3/5B pinout, P6SMB24AHE3/5B application, or P6SMB24AHE3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 μA leakage at 20.5 V), then rapidly avalanches below 25.2 V to clamp transient energy within nanoseconds. Its glass-passivated junction ensures stable breakdown and low capacitance (typ. <100 pF at 0 V), critical for high-speed signal line protection without signal distortion.
The device is thermally optimized for SMB mounting on 5.0 mm × 5.0 mm copper pads, with RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to TJ = +150 °C. Its 100 A IFSM rating supports robust handling of repetitive 8.3 ms half-sine surges common in automotive load-dump scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 20.5 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown) | 22.8–25.2 V at 1 mA - Guaranteed avalanche onset range; ensures predictable turn-on during transients |
| VC (Clamping) | 33.2 V at IPPM = 18.1 A - Peak voltage seen by protected circuit during 600 W transient; limits stress on downstream components |
| PPPM | 600 W (10/1000 μs waveform) - Standardized surge energy absorption capacity per industry test condition |
| ID (Leakage) | ≤1.0 μA at VWM - Minimal standby power loss and signal interference in high-impedance circuits |
| TJ max. | +150 °C - Enables use in under-hood automotive environments and industrial enclosures without derating |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with UL 94 V-0 flammability rating; cathode indicated by band on body; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail; completes shunt path during reverse transient |
| Cathode | Reverse-biased terminal | Connected to protected line (e.g., 24 V supply or sensor output); avalanche initiates here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles automotive load-dump and ISO 7637-2 Pulse 5a transients without failure |
| Glass passivated junction | Ensures stable VBR over lifetime and improved humidity resistance vs. epoxy-passivated alternatives |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage overshoot during fast transients, reducing risk of latch-up in protected ICs |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
|
Use Scenario: Protecting 24 V CAN bus power rails and LIN transceivers from load-dump transients in vehicle body control modules. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VCC and GND, clamping spikes within 1 ns to prevent damage to transceiver ICs. Use Value: Withstands 600 W pulses while limiting clamped voltage to 33.2 V, ensuring transceivers remain within absolute maximum ratings during ISO 16750-2 tests. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC I/O modules exposed to relay coil flyback. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across sensor output and ground to suppress sub-μs inductive spikes without distorting mV-level signals. Use Value: ≤1.0 μA leakage at 20.5 V preserves sensor accuracy; 33.2 V clamping prevents op-amp input stage breakdown during 100 V/μs transients. |
| DC-DC Converter Input Stage | Motor Drive Gate Driver Protection |
|
Use Scenario: Input-side transient suppression for 24 V-to-5 V buck converters powering microcontrollers in harsh industrial environments. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of input capacitor and controller IC, absorbing energy before it reaches sensitive regulation circuitry. Use Value: 22.8–25.2 V VBR aligns with 24 V nominal rail; 600 W rating covers worst-case 10/1000 μs surges from nearby contactor switching. |
Use Scenario: Protecting high-side and low-side gate drivers in 24 V BLDC motor inverters from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between driver output and source (for N-channel) or emitter (for IGBT), clamping gate-source/emitter overvoltage. Use Value: Fast response time and low RSURGE limit gate voltage excursion to ≤33.2 V, preventing unintended turn-on or oxide breakdown in Si MOSFETs. |
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, identical VWM/VBR/VC specs, but not AEC-Q101 qualified; lower surge life cycle rating | Limited to commercial-grade industrial equipment where automotive qualification is not required | Select when cost sensitivity outweighs automotive reliability requirements and long-term field deployment is not mandated |
| 1.5SMC24A | Higher package thermal resistance (RθJA = 125 °C/W vs. 100 °C/W); same electrical specs but larger SMC (DO-214AB) footprint | Requires PCB layout change; better suited for higher ambient temperature zones due to higher PD rating (6.5 W vs. 5.0 W) | Choose only if board space allows SMC and thermal margin exceeds 25 °C above ambient in final enclosure |
Compared with SMAJ24A-E3/5B and 1.5SMC24A, P6SMB24AHE3/5B delivers AEC-Q101 assurance and optimized thermal performance in the compact SMB outline-critical for space-constrained automotive ECUs and high-density industrial controllers where qualification and thermal efficiency are non-negotiable.
Availability
P6SMB24AHE3/5B is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, DC-DC converter inputs, and motor drive gate protection requiring stable component supply, traceable sourcing, and long-term lifecycle support.
Supply support for P6SMB24AHE3/5B 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The P6SMB Series targets robust transient suppression in harsh environments, with design focus on AEC-Q101 compliance, low-profile SMT compatibility, and consistent clamping performance across temperature and lifetime.
FAQ
What is the maximum clamping voltage of the P6SMB24AHE3/5B under standardized surge conditions?
The P6SMB24AHE3/5B exhibits a maximum clamping voltage (VC) of 33.2 V when subjected to its rated 18.1 A peak pulse current (IPPM), defined by the 10/1000 μs waveform per IEC 61000-4-5. This value is measured at TA = 25 °C with specified PCB pad layout (0.2" × 0.2" copper), and remains stable across its -65 °C to +150 °C operating junction temperature range due to low temperature coefficient (0.094 %/°C).
Is the P6SMB24AHE3/5B suitable for automotive applications?
Yes, the P6SMB24AHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation (Doc. #88370, Rev. 09-Jan-2024). It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114, making it appropriate for under-hood and chassis-mounted automotive systems such as body control modules and sensor hubs where reliability under thermal and mechanical stress is mandatory.
What does the "5B" in P6SMB24AHE3/5B indicate?
The "5B" denotes the packaging configuration: 13-inch diameter plastic tape and reel containing 3200 units. This differs from "52", which specifies a 7-inch reel with 750 units. Both share identical electrical and thermal specifications; the suffix solely identifies reel size and quantity for SMT placement equipment compatibility and inventory planning.
How does the P6SMB24AHE3/5B compare to bidirectional TVS diodes like P6SMB24CA?
The P6SMB24AHE3/5B is unidirectional and features a cathode band for polarity identification, whereas P6SMB24CA is bidirectional with no marking. Electrically, P6SMB24AHE3/5B has VWM = 20.5 V and VBR = 22.8–25.2 V, while P6SMB24CA has symmetric VWM = 20.5 V and VBR = ±22.8–25.2 V. Use P6SMB24AHE3/5B for DC rails with defined polarity; choose P6SMB24CA only for AC-coupled or floating signal lines requiring symmetrical clamping.
What is the thermal resistance from junction to ambient for the P6SMB24AHE3/5B?
The P6SMB24AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal. This value assumes still air conditions and is critical for calculating maximum allowable power dissipation at elevated ambient temperatures-e.g., at TA = 85 °C, derated PD drops to ~3.2 W using the standard linear derating curve from Vishay's Fig. 2.
P6SMB24AHE3/5B 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB24AHE3/5B FAQ
1.How can I place an order for P6SMB24AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24AHE3/5B 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 P6SMB24AHE3/5B reliable?
The price and inventory of P6SMB24AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB24AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24AHE3/5B?
P6SMB24AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24AHE3/5B 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 P6SMB24AHE3/5B?
For technical support, including P6SMB24AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24AHE3/5B requirements.
6.How does Aetrix verify that P6SMB24AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB24AHE3/5B 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 P6SMB24AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB24AHE3/5B?
All P6SMB24AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24AHE3/5B, 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 P6SMB24AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB24AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24AHE3/5B Tags
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