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Vishay 3.0C33CA-M3/I
- Part No.:
- 3.0C33CA-M3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C33CA-M3/I.pdf
- Description:
- 3KW, 33V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,195
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Product details
Overview
3.0C33CA-M3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for high-energy surge protection with 3000 W peak pulse power (10/1000 μs), 53.3 V clamping voltage at 430 A peak pulse current, and 33 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom power rails.
For engineers reviewing the 3.0C33CA-M3/I datasheet, 3.0C33CA-M3/I pinout, 3.0C33CA-M3/I application, or 3.0C33CA-M3/I equivalent, key selection criteria include bidirectional clamping capability, 175 °C maximum junction temperature, MSL Level 1 moisture sensitivity, and compliance with IEC 61000-4-2 (30 kV ESD).
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients induced by inductive switching or lightning surges. Its low incremental surge resistance and fast response time ensure minimal overvoltage exposure to downstream components.
The device features symmetric breakdown characteristics (36.7–40.6 V at 1 mA), 1.0 μA max reverse leakage at 33 V, and thermal resistance of 90 °C/W (junction-to-ambient) on FR4 PCB - enabling reliable operation under repetitive surge stress up to TJ = 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 3000 W - sustains high-energy surges without failure in power rail protection |
| Clamping Voltage VC | 53.3 V at 430 A - limits transient voltage seen by protected ICs below safe threshold |
| Stand-Off Voltage VWM | 33 V - ensures no conduction during normal 33 V system operation |
| Breakdown Voltage VBR | 36.7–40.6 V at 1 mA - defines precise turn-on threshold for bidirectional clamping |
| ESD Immunity | 30 kV contact/air per IEC 61000-4-2 - meets stringent electrostatic discharge requirements |
| Junction Temperature Range | −55 °C to +175 °C - supports operation in harsh industrial and automotive under-hood environments |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Reference terminal for bidirectional clamping | No polarity marking required; symmetrical structure enables identical clamping in both directions |
| Anode | Reference terminal for bidirectional clamping | Paired with cathode to form voltage-triggered shunt path across protected line and ground |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 30 kW surge rating (8/20 μs) | Handles high-current lightning-induced transients common in telecom and industrial field wiring |
| Low clamping ratio (VC/VBR ≈ 1.34) | Minimizes overvoltage margin between trigger and clamp, improving system-level robustness |
| UL 94 V-0 molding compound | Ensures flame-retardant reliability in enclosed equipment and safety-critical enclosures |
Applications
| Industrial Motor Drive Protection | Telecom Line Interface |
|---|---|
Use Scenario: Protecting gate drivers and current-sense amplifiers from inductive kickback in 24–48 V motor control circuits. IC Role / Device Role / Timing Role: Shunt TVS placed across DC bus or gate drive lines to clamp voltage spikes before they reach sensitive logic. Use Value: Prevents latch-up or permanent damage to MOSFET drivers during rapid PWM switching or brake events. |
Use Scenario: Safeguarding Ethernet PHY interfaces and RS-485 transceivers connected to outdoor cabling. IC Role / Device Role / Timing Role: Primary surge suppression stage before secondary filtering and receiver input. Use Value: Absorbs 8/20 μs lightning surges up to 430 A while maintaining <1.0 μA leakage at 33 V operating voltage. |
| Automotive Body Control Module | Consumer Sensor Hub Protection |
Use Scenario: Securing LIN bus nodes and LED driver outputs against load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional clamping element across power rail and ground near microcontroller I/O pins. Use Value: Withstands 175 °C junction temperature and meets AEC-Q200-relevant thermal cycling performance. |
Use Scenario: Shielding I²C and analog sensor inputs (e.g., temperature, humidity) in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) transient suppressor placed directly at connector entry point. Use Value: Delivers 30 kV ESD immunity without distorting low-speed digital signals or analog sensor accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA-E3/52 (Vishay) | Lower PPPM (600 W), same VWM (33 V), SMB package (smaller footprint, higher RthJA) | Suitable for space-constrained consumer electronics with lower surge exposure | Select when board area is critical and surge threat level is ≤ 600 W (10/1000 μs) |
| 1.5KE33CA (ON Semiconductor) | Through-hole DO-201 package, 1500 W PPPM, higher clamping voltage (53.3 V → 55.1 V) | Used in legacy industrial power supplies where through-hole assembly remains standard | Choose only if through-hole mounting is mandatory and 1500 W surge capacity suffices |
Compared with SMBJ33CA-E3/52 and 1.5KE33CA, the 3.0C33CA-M3/I delivers 5× higher surge power handling in an SMC package with superior thermal performance (RthJM = 4.0 °C/W), making it optimal for high-reliability industrial and telecom designs requiring sustained transient immunity.
Availability
3.0C33CA-M3/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, and automotive body control modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 3.0C33CA-M3/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, rectifiers, and protection devices with emphasis on reliability and ruggedized packaging.
The 3.0CxxCA-M3 series is engineered for high-energy transient suppression in demanding power and signal-line applications, targeting industrial automation, telecom infrastructure, and automotive subsystems.
FAQ
What is the clamping voltage of the 3.0C33CA-M3/I under a 10/1000 μs surge?
The 3.0C33CA-M3/I clamps to 53.3 V at its rated peak pulse current of 430 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and reflects the maximum voltage imposed on protected circuitry during worst-case surge conditions. The 3.0C33CA-M3/I maintains this clamping performance across its full operating temperature range.
Is the 3.0C33CA-M3/I suitable for bidirectional signal line protection?
Yes, the 3.0C33CA-M3/I is explicitly designed as a bidirectional TVS diode, with symmetrical breakdown (36.7–40.6 V) and clamping behavior in both polarities. It requires no polarity marking and is ideal for protecting AC-coupled interfaces like RS-485, CAN, or audio lines where voltage transients can occur in either direction relative to ground.
Does the 3.0C33CA-M3/I meet industry-standard ESD requirements?
Yes, the 3.0C33CA-M3/I is rated for 30 kV ESD immunity per IEC 61000-4-2 in both contact and air discharge modes. This exceeds typical system-level ESD requirements for industrial and telecom equipment and is verified per standardized test conditions (C = 150 pF, R = 330 Ω). The 3.0C33CA-M3/I achieves this without derating at room temperature.
What is the thermal resistance of the 3.0C33CA-M3/I on a standard PCB?
The 3.0C33CA-M3/I has a junction-to-ambient thermal resistance (RthJA) of 90 °C/W when mounted on a standard FR4 PCB with 2 oz. copper and JEDEC 51-2A footprint. Its junction-to-mount thermal resistance (RthJM) is 4.0 °C/W, indicating efficient heat transfer to the PCB pad - critical for sustaining repeated surge events without thermal runaway.
How does the -M3 suffix affect the 3.0C33CA-M3/I construction?
The -M3 suffix on the 3.0C33CA-M3/I denotes halogen-free, RoHS-compliant construction with matte tin-plated leads that pass JESD 201 Class 2 whisker testing and J-STD-002 solderability requirements. It also confirms compliance with Vishay's material categorization per doc# 99912 and qualifies the device for industrial-grade reliability and lead-free reflow processing.
3.0C33CA-M3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- DO-214AB, SMC
- Series:
- TRANSZORB®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 56.3A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
3.0C33CA-M3/I FAQ
1.How can I place an order for 3.0C33CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C33CA-M3/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 3.0C33CA-M3/I reliable?
The price and inventory of 3.0C33CA-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0C33CA-M3/I is usually 5 days.
3.What payment methods are accepted for 3.0C33CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C33CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C33CA-M3/I?
3.0C33CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C33CA-M3/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 3.0C33CA-M3/I?
For technical support, including 3.0C33CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C33CA-M3/I requirements.
6.How does Aetrix verify that 3.0C33CA-M3/I is sourced from the original manufacturer or authorized distributors?
All 3.0C33CA-M3/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 3.0C33CA-M3/I meets industry standards.
7.What is the process for return or replacement of 3.0C33CA-M3/I?
All 3.0C33CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C33CA-M3/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 3.0C33CA-M3/I part is unused and in its original packaging.
Return procedure for 3.0C33CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C33CA-M3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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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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