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Vishay General Semiconductor - Diodes Division P6SMB24CA-M3/5B
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- Part No.:
- P6SMB24CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24CA-M3/5B.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,546
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Product details
Overview
P6SMB24CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 24 V standoff voltage (VWM), 33.2 V maximum clamping voltage (VC) at 18.1 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 μs waveform - ideal for protecting MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB24CA-M3/5B datasheet, P6SMB24CA-M3/5B pinout, P6SMB24CA-M3/5B application, or P6SMB24CA-M3/5B equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), RoHS-compliant halogen-free construction, and AEC-Q101 qualification context - all critical for ESD/surge protection design-in and BOM validation.
Technical Context
The P6SMB24CA-M3/5B operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced surges.
Rated for 150 °C maximum junction temperature and compliant with J-STD-020 MSL Level 1 (peak reflow 260 °C), it supports automated SMT assembly. The device sustains repetitive 600 W pulses at 0.01% duty cycle when mounted on 5.0 mm × 5.0 mm copper pads - a key thermal boundary condition for reliable field operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 20.5 V - Maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown, min/max) | 22.8 V / 25.2 V at 1 mA - Tight 10.5% tolerance ensures predictable turn-on across production lots. |
| VC (Clamping, at IPPM) | 33.2 V at 18.1 A (10/1000 μs) - Limits voltage seen by downstream components during surge events. |
| IPPM | 18.1 A - Peak surge current capacity directly tied to PCB pad thermal mass per JEDEC standard mounting. |
| PPPM | 600 W - Peak pulse power rating validated under standardized 10/1000 μs waveform; derates above 25 °C ambient. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance determines self-heating under sustained leakage or repeated pulses. |
| TJ max. | 150 °C - Maximum junction temperature sets upper limit for thermal design margin in high-reliability applications. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated terminals solderable per J-STD-002. No polarity marking - bidirectional operation confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; no cathode band - enables layout flexibility and eliminates orientation errors in automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 600 W peak pulse power (10/1000 μs) | Supports robust immunity against IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on protected ICs compared to higher-ratio suppressors. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and allows standard lead-free reflow profiles without baking. |
| AEC-Q101 qualified option (_B suffix) | Validated for automotive under-hood and infotainment systems requiring extended temperature and reliability compliance. |
Applications
| Automotive Sensor Signal 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 inductive switching transients in 12 V/24 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt surge energy before reaching interface ICs. Use Value: Prevents latch-up or permanent damage to transceivers rated for ≤36 V absolute maximum, leveraging 33.2 V clamping at 18.1 A. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across 24 V DC input terminals to clamp spikes up to 600 W without affecting steady-state logic thresholds. Use Value: Maintains system uptime by preventing false triggering or reset events caused by >1 kV transients induced by nearby contactors. |
| Telecom Line Interface Protection | Consumer Power Adapter Output Clamping |
|
Use Scenario: Shielding Ethernet PHY magnetics and PoE controller inputs from lightning-induced surges on outdoor data lines. IC Role / Device Role / Timing Role: First-stage protector upstream of GDT or polymer-based secondary suppression, handling initial high-energy strike. Use Value: Absorbs up to 600 W of surge energy while limiting voltage to 33.2 V - compatible with 3.3 V/5 V PHY supply rails and isolation barriers. |
Use Scenario: Suppressing output overvoltage transients in AC/DC adapters due to transformer leakage inductance or regulator fault conditions. IC Role / Device Role / Timing Role: Clamp diode across regulated 5 V/12 V output rail to prevent damage to connected USB peripherals or embedded controllers. Use Value: Responds in <1 ns to fast-rising faults, holding output below 33.2 V even during 18.1 A surge - preserving downstream USB PD negotiation integrity. |
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 VWM (20.5 V) and VC (33.2 V), but lower PPPM = 400 W; SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients; less suitable for IEC 61000-4-5 Level 4 or high-duty-cycle industrial environments. | Select when board space is constrained and surge threat level is ≤400 W; verify thermal margin with smaller pad area. |
| 1.5SMC24CA | Same VWM/VC, but higher PPPM = 1500 W; larger SMC (DO-214AB) package with lower RθJA = 60 °C/W. | Overqualified for 600 W needs; requires larger PCB real estate and may not fit tight pitch layouts. | Choose when future-proofing against higher surge standards or when operating ambient exceeds 70 °C with limited airflow. |
Compared with SMAJ24CA and 1.5SMC24CA, the P6SMB24CA-M3/5B delivers optimal balance of 600 W surge handling, SMB footprint compatibility, and thermal performance - making it the preferred choice for mid-tier industrial and automotive applications where space, cost, and reliability must coexist.
Availability
P6SMB24CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter output clamping requiring stable component supply and halogen-free compliance.
Supply support for P6SMB24CA-M3/5B 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in space-constrained SMT designs, with variants engineered for commercial, industrial, and AEC-Q101 automotive applications - prioritizing consistent clamping, low leakage, and robust surge endurance.
FAQ
What is the clamping voltage of P6SMB24CA-M3/5B at its rated peak pulse current?
The P6SMB24CA-M3/5B has a maximum clamping voltage (VC) of 33.2 V when subjected to its rated 18.1 A peak pulse current (IPPM) 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 compatibility with 3.3 V, 5 V, or 24 V logic and interface ICs.
Is P6SMB24CA-M3/5B suitable for automotive applications?
The base P6SMB24CA-M3/5B is halogen-free and RoHS-compliant for commercial use. For automotive applications, Vishay offers the AEC-Q101 qualified variant P6SMB24CAHM3_B/5B (with "_B" suffix), which undergoes extended stress testing per AEC-Q101. The P6SMB24CA-M3/5B itself is not AEC-Q101 certified, so designers requiring automotive qualification must specify the HM3_B version.
How does the bidirectional nature of P6SMB24CA-M3/5B affect PCB layout?
The P6SMB24CA-M3/5B has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB layout - no silkscreen polarity indicator is needed, and the device can be rotated 180° without functional impact. Layout best practice remains symmetric 5.0 mm × 5.0 mm copper pads per terminal to maintain specified thermal and surge performance.
What is the maximum operating temperature for P6SMB24CA-M3/5B?
The P6SMB24CA-M3/5B has a maximum junction temperature (TJ) of +150 °C and an operating/storage temperature range of -65 °C to +150 °C. Its thermal resistance (RθJA) is 100 °C/W under standard JEDEC test conditions (0.2" × 0.2" copper pads). Derating curves in Figure 2 of document 88370 must be applied when ambient temperature exceeds 25 °C to ensure TJ stays within limit.
Does P6SMB24CA-M3/5B require a heatsink for 600 W pulse handling?
No external heatsink is required for the P6SMB24CA-M3/5B to handle its rated 600 W peak pulse power, provided it is mounted per Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad layout per terminal. The device relies on PCB copper as its primary heat sink; adding thermal vias or larger copper areas improves sustained pulse capability but is not mandatory for single-pulse compliance.
P6SMB24CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB24CA-M3/5B FAQ
1.How can I place an order for P6SMB24CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24CA-M3/5B 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 P6SMB24CA-M3/5B reliable?
The price and inventory of P6SMB24CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24CA-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB24CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24CA-M3/5B?
P6SMB24CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24CA-M3/5B 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 P6SMB24CA-M3/5B?
For technical support, including P6SMB24CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24CA-M3/5B requirements.
6.How does Aetrix verify that P6SMB24CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB24CA-M3/5B 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 P6SMB24CA-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB24CA-M3/5B?
All P6SMB24CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24CA-M3/5B, 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 P6SMB24CA-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB24CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24CA-M3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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