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Vishay General Semiconductor - Diodes Division P6SMB24AHE3_A/I
- Part No.:
- P6SMB24AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24AHE3_A/I.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,628
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Product details
Overview
P6SMB24AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for robust overvoltage protection of sensitive electronics. It features a 24 V standoff voltage (VWM), 25.2 V maximum breakdown voltage (VBR), and clamps transients up to 33.2 V at 18.1 A peak pulse current (10/1000 μs), making it suitable for protecting MOSFETs, ICs, and sensor signal lines in industrial power supplies and automotive ECUs.
For engineers reviewing the P6SMB24AHE3_A/I datasheet, P6SMB24AHE3_A/I pinout, P6SMB24AHE3_A/I application, or P6SMB24AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 600 W peak pulse power rating, low incremental surge resistance, and SMB (DO-214AA) package compatibility with automated SMT assembly.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for stable avalanche behavior under repetitive transient stress. Its thermal resistance (RθJA = 100 °C/W) and junction temperature limit (TJ max = 150 °C) support reliable operation in ambient temperatures up to +125 °C when mounted on 5.0 mm × 5.0 mm copper pads.
The device meets J-STD-020 MSL Level 1 moisture sensitivity and JESD201 Class 2 whisker resistance requirements, with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Its 10/1000 μs waveform response time is sub-nanosecond, enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20.5 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC working range. |
| VBR (Breakdown Voltage) | 22.8–25.2 V at IT = 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 33.2 V at IPPM = 18.1 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; critical for downstream component survivability. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling capability under standardized 10/1000 μs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| Package | SMB (DO-214AA) - Low-profile surface-mount outline with 5.59 mm × 3.94 mm footprint; optimized for automated placement and thermal pad layout. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Dimensions: 5.59 mm × 3.94 mm × 2.29 mm (L × W × H); terminals are matte tin-plated for lead-free soldering compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge events (e.g., reverse-bias faults). |
| Cathode | Clamping terminal | Connected to protected line (e.g., 24 V rail or signal input); initiates avalanche breakdown when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against severe transients per IEC 61000-4-5 without external derating or parallel staging. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure, critical for automotive and industrial field life. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow profiles without preconditioning, reducing manufacturing complexity and cost. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control, body electronics, and ADAS sensors where failure modes must be rigorously controlled. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin for CMOS ICs and precision analog stages. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects 24 V CAN/LIN bus interface inputs from load-dump transients and alternator ripple in vehicle body electronics. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between input line and chassis ground, absorbing >100 V/100 ms surges while maintaining <33.2 V clamp level. Use Value: Prevents latch-up or gate oxide damage in level translators and transceivers, extending system uptime and meeting ISO 7637-2 Pulse 5a compliance. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers from inductive kickback generated by solenoid and relay coils. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to shunt surge energy before reaching optocoupler input stage. Use Value: Eliminates false triggering and input-stage degradation, supporting >100,000 switching cycles without maintenance in factory automation environments. |
| Telecom Power Supply Front-End | Medical Sensor Signal Conditioning |
Use Scenario: Guards primary-side 24 V auxiliary rails in telecom rectifiers against lightning-induced surges entering via AC mains or Ethernet ports. IC Role / Device Role / Timing Role: Primary-level TVS placed immediately after bridge rectifier output, clamping transients before bulk capacitor and controller IC. Use Value: Maintains uninterrupted operation during Category B/C surge events (IEC 61000-4-5), avoiding brownouts and firmware resets in base station power systems. |
Use Scenario: Protects low-voltage analog front-end (AFE) inputs of patient monitoring sensors (e.g., ECG, SpO₂) from ESD and cable discharge events. IC Role / Device Role / Timing Role: High-impedance, low-leakage TVS (1.0 μA) placed at AFE input pins to suppress ±8 kV contact ESD without loading signal path. Use Value: Preserves microvolt-level signal fidelity and prevents saturation of instrumentation amplifiers, ensuring diagnostic accuracy per IEC 60601-1-2 immunity requirements. |
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 rated for 400 W PPPM (vs. 600 W); higher ID (5 μA vs. 1 μA). | Limited to less severe surge environments (e.g., consumer-grade power adapters); not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive or industrial surge margin requirements. |
| 1.5SMC24A | Higher-power SMC package (7.11 mm × 6.22 mm); same 24 V VWM and 33.2 V VC, but 1500 W PPPM rating. | Requires larger PCB area and different thermal pad layout; suited for high-energy industrial motor drives. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 or requires extended lifetime under repetitive stress. |
Compared with SMAJ24A-E3/5B and 1.5SMC24A, the P6SMB24AHE3_A/I delivers optimal balance of automotive-grade reliability, compact SMB footprint, and 600 W surge capacity-making it ideal for space-constrained, mission-critical 24 V systems where AEC-Q101 validation and low leakage are mandatory.
Availability
P6SMB24AHE3_A/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC inputs, telecom power front-ends, and medical sensor interfaces requiring stable component supply, AEC-Q101 traceability, and consistent surge performance across production batches.
Supply support for P6SMB24AHE3_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, efficiency, and application-specific optimization.
The P6SMB series was developed to deliver high-power, surface-mount TVS protection for 24 V and 48 V automotive and industrial systems, combining AEC-Q101 qualification, low-profile packaging, and precise clamping performance in a cost-effective DO-214AA format.
FAQ
What is the maximum clamping voltage of the P6SMB24AHE3_A/I under a 10/1000 μs surge?
The P6SMB24AHE3_A/I clamps to a maximum of 33.2 V when subjected to an 18.1 A peak pulse current with 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 P6SMB24AHE3_A/I maintains this clamping performance across its full operating temperature range, supporting robust design margins in automotive and industrial applications.
Is the P6SMB24AHE3_A/I AEC-Q101 qualified, and what does the "HE3" suffix indicate?
Yes, the P6SMB24AHE3_A/I is fully AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code structure. The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from commercial-grade variants (E3/M3) and higher-reliability automotive versions (HM3). This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-ensuring suitability for under-hood and safety-critical automotive modules.
What is the reverse leakage current of the P6SMB24AHE3_A/I at its 20.5 V stand-off voltage?
The P6SMB24AHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage of 20.5 V and TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes quiescent power loss in always-on automotive subsystems. Leakage remains below 5 μA up to 85 °C ambient, supporting reliable operation in demanding thermal environments without compromising protection function.
Can the P6SMB24AHE3_A/I be used in bidirectional protection circuits?
No, the P6SMB24AHE3_A/I is a unidirectional TVS diode, indicated by the "A" suffix and cathode-band marking. Bidirectional operation requires the "CA" suffix (e.g., P6SMB24CA). Using the P6SMB24AHE3_A/I in a bidirectional configuration would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. For AC or dual-polarity signal lines, select a verified bidirectional variant with matching VWM and PPPM ratings.
What is the thermal resistance junction-to-ambient (RθJA) for the P6SMB24AHE3_A/I, and how does it affect PCB layout?
The P6SMB24AHE3_A/I has a typical RθJA of 100 °C/W when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. This value assumes standard JEDEC test conditions and directly impacts thermal derating: at 70 °C ambient, the device can sustain only ~3.3 W of continuous power before reaching its 150 °C junction limit. To maintain full 600 W surge capability, ensure adequate copper area, avoid thermal isolation, and verify layout against Vishay's SMB pad recommendations in Document Number 88370.
P6SMB24AHE3_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:
- -
- 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_A/I FAQ
1.How can I place an order for P6SMB24AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24AHE3_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 P6SMB24AHE3_A/I reliable?
The price and inventory of P6SMB24AHE3_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 P6SMB24AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB24AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24AHE3_A/I?
P6SMB24AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24AHE3_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 P6SMB24AHE3_A/I?
For technical support, including P6SMB24AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB24AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB24AHE3_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 P6SMB24AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB24AHE3_A/I?
All P6SMB24AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24AHE3_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 P6SMB24AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB24AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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