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Vishay General Semiconductor - Diodes Division 3.0C24CA-M3/H
- Part No.:
- 3.0C24CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C24CA-M3/H.pdf
- Description:
- 3KW, 24V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,685
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Product details
Overview
3.0C24CA-M3 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR), 38.9 V clamping voltage at 581 A (10/1000 μs), and 3000 W peak pulse power rating.
For engineers reviewing the 3.0C24CA-M3 datasheet, 3.0C24CA-M3 pinout, 3.0C24CA-M3 application, or 3.0C24CA-M3 equivalent, this device is selected for robust ESD and surge protection in industrial sensor interfaces, DC power rails, and telecom line receivers where fast response (<1 ns), low clamping ratio, and MSL Level 1 reflow compatibility are critical.
Technical Context
This TVS diode operates bidirectionally with no polarity marking and responds to transient overvoltages within sub-nanosecond timeframes. Its low incremental surge resistance and excellent clamping capability ensure minimal voltage overshoot during 8/20 μs (51.6 V @ 581 A) and 10/1000 μs (38.9 V @ 581 A) surges.
It meets IEC 61000-4-2 ESD immunity up to ±30 kV (contact/air), supports junction temperatures from –55 °C to +175 °C, and is halogen-free, RoHS-compliant, and qualified per JESD 201 Class 2 whisker test.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC operating margin |
| VBR min/max | 26.7 V / 29.5 V at 1 mA - ensures reliable turn-on above normal operating voltage with tight tolerance |
| VC @ IPPM (10/1000 μs) | 38.9 V at 581 A - limits transient voltage seen by protected ICs to safe levels during high-energy surges |
| PPPM | 3000 W - sustains 10/1000 μs surge events without failure; enables protection of 24 V industrial bus lines |
| ESD Rating | ±30 kV HBM - exceeds IEC 61000-4-2 requirements for rugged front-end protection in exposed ports |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 90 °C/W RthJA, compatible with automated assembly |
| Operating Temp | –55 °C to +175 °C - supports deployment in under-hood automotive, industrial control, and outdoor telecom equipment |
Pinout & Package
SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1, 260 °C peak reflow profile. Cathode band not marked on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional surge path | No polarity marking required; symmetric conduction allows placement without orientation check |
| Lead 1 / Lead 2 | Transient current terminals | Both leads carry equal surge current in either direction; PCB layout must support ≥581 A peak current density |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 3000 W peak pulse power | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) on 24 V systems |
| 38.9 V clamping at 581 A | Clamping ratio (VC/VWM) = 1.62 - lower than typical 1.8–2.2, reducing stress on downstream 3.3 V/5 V logic |
| MSL Level 1 rating | Allows standard SMT reflow without baking or special handling; reduces manufacturing overhead |
| ±30 kV ESD immunity | Eliminates need for additional ESD diodes in USB, RS-485, or CAN FD interface protection networks |
Applications
| Industrial Sensor Interface | 24 V DC Power Rail Protection |
|---|---|
Use Scenario: Protecting analog output (4–20 mA) and digital I/O lines of temperature/pressure sensors in factory automation cabinets exposed to relay switching noise and lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient clamp placed directly at connector entry point, shunting surge energy before it reaches precision ADCs or microcontroller GPIOs. Use Value: Clamps 10/1000 μs surges to ≤38.9 V, preventing latch-up or gate oxide damage in 3.3 V sensor signal conditioning ICs. | Use Scenario: Safeguarding 24 V supply inputs to PLC I/O modules, motor drivers, and programmable logic controllers subjected to inductive kickback from solenoids and contactors. IC Role / Device Role / Timing Role: High-power TVS placed upstream of input filter capacitors and DC-DC converters to absorb repetitive 3000 W surge events. Use Value: Withstands ≥1000 surge cycles at 80 % derated PPPM, ensuring long-term reliability in harsh industrial environments. |
| Telecom Line Receiver Protection | Automotive Body Control Module (BCM) |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station remote radio units (RRUs) and fiber access nodes against induced surges from nearby power lines or antenna coupling. IC Role / Device Role / Timing Role: Bidirectional TVS integrated into common-mode choke network at physical layer interface, providing symmetrical clamping on differential pairs. Use Value: Low clamping voltage preserves signal integrity on 24 V bias rails while meeting GR-1089-CORE Level 3 surge requirements. | Use Scenario: Protecting LIN bus transceivers and power window motor drivers in vehicle body electronics exposed to load dump and jump-start transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Secondary surge suppressor downstream of primary load-dump TVS, handling fast-rising transients from local switching noise. Use Value: 175 °C max junction temperature rating enables operation near engine bay heat sources without thermal derating penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | Lower PPPM (600 W), same VWM (24 V), SMB package (smaller footprint, higher RthJA) | Suitable only for low-energy transients (e.g., ESD-only); insufficient for IEC 61000-4-5 surges | Select when board space is constrained and surge threat level is limited to HBM ±15 kV or IEC 61000-4-2 only |
| SMCJ24A | Unidirectional, same package and PPPM (3000 W), but requires correct polarity orientation and lacks negative swing clamping | Applicable only on DC-biased lines where reverse conduction is not needed (e.g., 24 V supply rail with ground reference) | Choose when protecting unidirectional power rails and polarity-aware layout is acceptable |
Compared with SMBJ24CA and SMCJ24A, the 3.0C24CA-M3 delivers full bidirectional 3000 W surge handling in SMC package without polarity constraints-making it optimal for floating, AC-coupled, or dual-rail interfaces where layout flexibility and robustness are prioritized over minimal footprint.
Availability
3.0C24CA-M3 is available at Aetrix Electronics and suitable for industrial sensor interfaces, 24 V DC power rail protection, and telecom line receiver protection requiring stable component supply across multi-year production cycles.
Supply support for 3.0C24CA-M3 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, power efficiency, and AEC-Q200 qualification.
The 3.0CxxCA-M3 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in industrial, automotive, and telecom infrastructure where consistent clamping performance and long-term stability under thermal cycling are mandatory.
FAQ
What is the clamping voltage of the 3.0C24CA-M3 under a 10/1000 μs surge?
The 3.0C24CA-M3 has a maximum clamping voltage (VC) of 38.9 V at 581 A for a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and reflects the actual voltage imposed on protected circuitry during worst-case surge conditions, enabling accurate system-level overvoltage margin analysis for downstream 3.3 V or 5 V ICs.
Is the 3.0C24CA-M3 suitable for bidirectional signal line protection?
Yes, the 3.0C24CA-M3 is explicitly designed as a bidirectional TVS diode with symmetric breakdown characteristics. Its unmarked SMC package and matched VBR min/max (26.7 V / 29.5 V) ensure identical clamping behavior for positive and negative transients-making it ideal for protecting RS-485, CAN FD, or audio differential pairs without polarity concerns.
Does the 3.0C24CA-M3 meet automotive-grade reliability requirements?
The 3.0C24CA-M3 is not AEC-Q200 qualified, but its –55 °C to +175 °C operating range, MSL Level 1 reflow rating, and ±30 kV ESD immunity align with many automotive body electronics use cases. For safety-critical or engine compartment applications, Vishay's AEC-Q200-qualified equivalents (e.g., 3.0SMC24AQ) should be verified separately.
What is the thermal resistance of the 3.0C24CA-M3 in standard mounting?
The 3.0C24CA-M3 has a typical junction-to-ambient thermal resistance (RthJA) of 90 °C/W when mounted on a FR4 PCB per JEDEC 51-2A standard footprint. Its junction-to-mount (RthJM) is 4.0 °C/W, supporting effective heat transfer to copper pour or heatsink pads in high-surge-frequency applications.
How does the 3.0C24CA-M3 compare to the 3.0C24A-M3 variant?
The 3.0C24CA-M3 is bidirectional, whereas the 3.0C24A-M3 is unidirectional. Both share identical VWM (24 V), PPPM (3000 W), and SMC packaging-but only the "CA" suffix guarantees symmetrical clamping for AC or floating circuits. Using 3.0C24A-M3 in bidirectional applications risks failure during negative transients.
3.0C24CA-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 77.1A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
3.0C24CA-M3/H FAQ
1.How can I place an order for 3.0C24CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C24CA-M3/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 3.0C24CA-M3/H reliable?
The price and inventory of 3.0C24CA-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0C24CA-M3/H is usually 5 days.
3.What payment methods are accepted for 3.0C24CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C24CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C24CA-M3/H?
3.0C24CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C24CA-M3/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 3.0C24CA-M3/H?
For technical support, including 3.0C24CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C24CA-M3/H requirements.
6.How does Aetrix verify that 3.0C24CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 3.0C24CA-M3/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 3.0C24CA-M3/H meets industry standards.
7.What is the process for return or replacement of 3.0C24CA-M3/H?
All 3.0C24CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C24CA-M3/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 3.0C24CA-M3/H part is unused and in its original packaging.
Return procedure for 3.0C24CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C24CA-M3/H Tags
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