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Vishay General Semiconductor - Diodes Division P6SMB24CAHE3_B/H
- Part No.:
- P6SMB24CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24CAHE3_B/H.pdf
- Description:
- 600W,24V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,557
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Product details
Overview
P6SMB24CAHE3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power 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 telecom line surge suppression.
For engineers reviewing the P6SMB24CAHE3_B/H datasheet, P6SMB24CAHE3_B/H pinout, P6SMB24CAHE3_B/H application, or P6SMB24CAHE3_B/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal performance, and compliance with IEC 61000-4-2/4-4/4-5 transient immunity requirements.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity sensitivity. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at 20.5 V), while the low incremental surge resistance supports consistent clamping under repetitive transients.
The device is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its AEC-Q101 qualification (indicated by HE3_B suffix) confirms suitability for automotive electronics requiring robust reliability under temperature cycling, humidity, and mechanical stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20.5 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 22.8 V to 25.2 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during ESD or surge events. |
| VC (Clamping Voltage) | 33.2 V at 18.1 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs transient; critical for IC-level overvoltage margining. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized surge waveform; enables single-device protection for Class 3B IEC 61000-4-5. |
| ID (Reverse Leakage) | <1.0 μA at VWM - Minimal DC loading on signal lines; preserves integrity in high-impedance sensor or communication circuits. |
| TJ max | 150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating below full power. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including engine control modules, ADAS sensors, and body electronics per stress test requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (symmetrical) | Bidirectional terminal pair | No functional distinction between terminals; either side accepts positive or negative transients - eliminates orientation errors during automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports single-device protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 24 V supply rails. |
| AEC-Q101 qualified (HE3_B suffix) | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock per AEC standard. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream components - critical for protecting 3.3 V or 5 V logic interfaced via level-shifting circuits. |
| MSL Level 1, 260 °C reflow compatible | Enables standard lead-free SMT assembly without pre-baking or special handling. |
| Glass passivated junction | Ensures long-term stability of breakdown characteristics across temperature and lifetime, reducing parameter drift in harsh environments. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD or 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: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Maintains signal integrity during 12 V/24 V system transients up to ±300 V, with <1.0 μA leakage preserving sensor offset accuracy. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Primary surge suppression device on 24 V DC input channels, coordinated with upstream fusing and filtering. Use Value: Clamps 600 W surges within 1 ns response time, preventing latch-up or permanent damage to optocouplers and microcontrollers. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Shielding Ethernet PHYs and PoE injectors from lightning-induced surges on twisted-pair cabling in outdoor access points. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), absorbing residual energy and limiting let-through voltage. Use Value: Symmetric 33.2 V clamping ensures balanced protection on differential pairs without skew or common-mode imbalance. |
Use Scenario: Suppressing switch-mode power supply ringing and ESD events on 24 V output rails of wall-mounted adapters for smart home hubs. IC Role / Device Role / Timing Role: Final-stage TVS mounted adjacent to output connector to prevent user-port ESD from propagating into downstream USB-C or PMIC circuitry. Use Value: Low-profile SMB package fits tight board space; RoHS-compliant and halogen-free (HE3 variant) meets global environmental compliance mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24CA | Same SMB package, 24 V VWM, but lower PPPM (400 W); no AEC-Q101 qualification. | Restricted to commercial-grade consumer or office equipment; unsuitable for automotive or industrial field-deployed systems. | Select when cost sensitivity outweighs automotive reliability requirements and surge threat level is ≤ IEC 61000-4-5 Level 2. |
| SMCJ24CA | Higher PPPM (1500 W), same VWM and VC, but larger SMC (DO-214AB) package; AEC-Q101 available in HM3 variant. | Requires PCB layout change; better suited for high-energy surge zones like main power entry or motor drive outputs. | Choose when system-level surge testing exceeds 600 W requirements or when thermal dissipation demands larger copper pad area. |
Compared with SMAJ24CA and SMCJ24CA, P6SMB24CAHE3_B/H delivers optimal balance of AEC-Q101 reliability, 600 W surge capacity, and SMB footprint - making it the preferred choice for space-constrained automotive and industrial edge nodes where qualification and form factor are jointly critical.
Availability
P6SMB24CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom infrastructure requiring stable component supply with guaranteed AEC-Q101 compliance and traceable lot history.
Supply support for P6SMB24CAHE3_B/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-reliability transient suppression in automotive, industrial, and communications systems - delivering consistent clamping performance across temperature and lifetime under real-world surge conditions.
FAQ
What does the "CA" suffix indicate in P6SMB24CAHE3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning the P6SMB24CAHE3_B/H provides symmetrical transient suppression for both positive and negative voltage excursions. This eliminates polarity concerns during PCB layout and enables use on AC-coupled lines, differential buses like CAN or RS-485, and ungrounded sensor interfaces - unlike unidirectional "A" variants which require correct cathode orientation.
Is P6SMB24CAHE3_B/H suitable for automotive applications?
Yes, P6SMB24CAHE3_B/H is AEC-Q101 qualified, as confirmed by the "HE3_B" suffix and Vishay documentation. It has undergone stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life - making it appropriate for under-hood and cabin-mounted automotive electronics including ADAS sensors, body control modules, and infotainment power supplies.
What is the clamping voltage of P6SMB24CAHE3_B/H at its rated peak pulse current?
The P6SMB24CAHE3_B/H has a maximum clamping voltage (VC) of 33.2 V at 18.1 A peak pulse current (IPPM), measured using the standard 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring compatibility with 24 V nominal systems and downstream IC absolute maximum ratings.
How does the SMB (DO-214AA) package of P6SMB24CAHE3_B/H compare thermally to larger packages?
The SMB package of P6SMB24CAHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. While smaller than SMC or DO-214AB, its thermal performance is optimized for surface-mount applications with minimum recommended 0.2" x 0.2" copper pads per terminal - sufficient for intermittent 600 W pulses but requiring layout-aware thermal design for sustained duty cycles.
Does P6SMB24CAHE3_B/H meet RoHS and halogen-free requirements?
P6SMB24CAHE3_B/H is RoHS-compliant per EU Directive 2011/65/EU, as indicated by the "HE3" base suffix. It is not halogen-free; for halogen-free compliance, the equivalent part is P6SMB24CAHM3_B/H. Both variants meet JESD 201 Class 2 whisker resistance and are rated for lead-free reflow up to 260 °C peak temperature.
P6SMB24CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB24CAHE3_B/H FAQ
1.How can I place an order for P6SMB24CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24CAHE3_B/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 P6SMB24CAHE3_B/H reliable?
The price and inventory of P6SMB24CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB24CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24CAHE3_B/H?
P6SMB24CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24CAHE3_B/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 P6SMB24CAHE3_B/H?
For technical support, including P6SMB24CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB24CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB24CAHE3_B/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 P6SMB24CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB24CAHE3_B/H?
All P6SMB24CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24CAHE3_B/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 P6SMB24CAHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB24CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24CAHE3_B/H Tags
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