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Vishay General Semiconductor - Diodes Division 3.0C48CA-M3/H
- Part No.:
- 3.0C48CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C48CA-M3/H.pdf
- Description:
- 3KW, 48V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,994
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Product details
Overview
3.0C48CA-M3/H 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), 77.4 V clamping voltage at 38.8 A, and 48 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom power rails.
For engineers reviewing the 3.0C48CA-M3/H datasheet, 3.0C48CA-M3/H pinout, 3.0C48CA-M3/H application, or 3.0C48CA-M3/H equivalent, key selection criteria include bidirectional clamping performance, 175 °C max junction temperature, MSL Level 1 reflow compatibility, 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 bidirectional architecture enables symmetrical clamping across both polarities without polarity marking, and its low incremental surge resistance ensures stable voltage limiting under high-current pulses.
It meets JEDEC J-STD-020 MSL Level 1 with 260 °C peak reflow profile, uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 Class 2 whisker testing. Thermal resistance is 90 °C/W (junction-to-ambient) and 4.0 °C/W (junction-to-mount).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 48 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 53.3 V / 58.9 V - Breakdown occurs within this range at 1 mA test current; ensures reliable turn-on margin above VWM. |
| VC @ IPPM | 77.4 V @ 38.8 A - Clamping voltage during 10/1000 μs surge; determines maximum stress imposed on downstream components. |
| PPPM | 3000 W - Peak pulse power handling capability; supports robust protection against IEC 61000-4-5 level 4 surges. |
| IPPM (10/1000 μs) | 38.8 A - Maximum non-repetitive peak pulse current; sets minimum PCB trace and layout current-carrying capacity. |
| TJ max. | +175 °C - Maximum junction temperature; enables operation in high-ambient environments such as industrial motor drives. |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact/air) - Full-system ESD immunity without external shielding or filtering layers. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, 260 °C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Surge current sink node (bidirectional) | No functional polarity marking on device; terminals are electrically symmetric for AC or DC line protection. |
| Anode | Surge current source node (bidirectional) | Both terminals conduct equally during positive or negative transients; no directional installation requirement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or ungrounded DC buses without polarity concerns or dual-diode arrangements. |
| 3000 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) in industrial power supplies without derating. |
| 77.4 V clamping at 38.8 A | Limits transient overvoltage to safe levels for 48 V-rated logic, gate drivers, and analog front-ends in PLC I/O modules. |
| MSL Level 1, 260 °C reflow compatible | Eliminates moisture sensitivity concerns and allows standard SMT assembly without baking or special handling. |
| 30 kV HBM ESD rating | Provides system-level ESD robustness for exposed connectors and sensor interfaces without supplemental TVS stages. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of gate driver inputs and bus voltage sense circuits against inductive kickback from IGBT/MOSFET switching. IC Role / Device Role / Timing Role: Shunt clamping element placed directly across DC bus or gate resistor network to clamp fast-rising dv/dt spikes. Use Value: Prevents false triggering or latch-up in isolated gate drivers by limiting transient overshoot to ≤77.4 V during 38.8 A surges. | Use Scenario: Surge suppression on -48 V telecom power distribution lines feeding remote radio units and baseband processors. IC Role / Device Role / Timing Role: Primary line-side TVS on input stage of DC-DC converters, located before bulk capacitance and upstream of hot-swap controllers. Use Value: Withstands repeated 10/1000 μs surges up to 3000 W while maintaining <1 μA leakage at 48 V, minimizing standby power loss. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
Use Scenario: Input protection for LIN/CAN transceivers and microcontroller GPIOs exposed to load-dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between connector and ESD filter capacitor, referenced to chassis ground. Use Value: Delivers ±30 kV ESD immunity per IEC 61000-4-2 and clamps 12 V system load-dump events to <80 V, preserving transceiver integrity. | Use Scenario: Protection of analog outputs (4–20 mA, 0–10 V) and digital sensor interfaces (I²C, SPI) in factory automation field devices. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) shunt suppressor mounted adjacent to connector pins to minimize stub inductance. Use Value: Limits transient-induced offset errors and ADC saturation by clamping to 77.4 V with <2 nA leakage at 48 V, ensuring signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48CA | Same VWM (48 V) and bidirectional configuration, but lower PPPM = 600 W (SMC vs. SMB package size). | Not suitable for 3000 W surge environments; limited to consumer-grade or low-energy signal-line protection. | Select only when board space is constrained and surge threat level is ≤1 kV IEC 61000-4-5. |
| 1.5KE48CA | Through-hole DO-201 package, same VWM/VC, but higher thermal resistance (RthJA ≈ 150 °C/W) and no MSL rating. | Requires wave soldering; unsuitable for mixed-technology SMT-only production or high-reliability reflow processes. | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMBJ48CA and 1.5KE48CA, the 3.0C48CA-M3/H delivers triple the pulse power in an MSL Level 1 SMT package, enabling compact, high-reliability surge protection in automated industrial manufacturing without process compromises.
Availability
3.0C48CA-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply and full IEC 61000-4-2/4-5 compliance.
Supply support for 3.0C48CA-M3/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, power efficiency, and industrial-grade qualification.
The 3.0CxxCA-M3 series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh-environment power electronics, including factory automation, telecom infrastructure, and transportation systems.
FAQ
What is the clamping voltage of the 3.0C48CA-M3/H under a 10/1000 μs surge?
The 3.0C48CA-M3/H has a maximum clamping voltage (VC) of 77.4 V at 38.8 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The 3.0C48CA-M3/H maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C).
Does the 3.0C48CA-M3/H require polarity-aware PCB layout?
No - the 3.0C48CA-M3/H is a bidirectional TVS diode with symmetric terminal behavior, and no polarity marking is present on the SMC (DO-214AB) package. Both terminals function identically during positive or negative transients, eliminating orientation constraints during placement. This simplifies layout and reduces assembly error risk compared to unidirectional alternatives.
Is the 3.0C48CA-M3/H compliant with lead-free reflow requirements?
Yes - the 3.0C48CA-M3/H is rated MSL Level 1 per J-STD-020 and qualified for peak reflow temperatures up to 260 °C. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the -M3 suffix confirms compliance with JESD 201 Class 2 whisker resistance. No pre-baking is required prior to standard lead-free SMT assembly.
What is the maximum reverse leakage current of the 3.0C48CA-M3/H at its rated stand-off voltage?
At VWM = 48 V and TA = 25 °C, the 3.0C48CA-M3/H exhibits a maximum reverse leakage current (ID) of 1.0 μA. This ultra-low leakage preserves system efficiency in always-on applications such as telecom power monitoring and battery-backed sensor nodes, where standby current budgets are tightly constrained.
Can the 3.0C48CA-M3/H be used for IEC 61000-4-5 surge protection?
Yes - the 3.0C48CA-M3/H is rated for 3000 W peak pulse power with a 10/1000 μs waveform and supports 300 A peak pulse current with an 8/20 μs waveform (100 V clamping). These characteristics align with IEC 61000-4-5 level 4 (4 kV line-earth) testing requirements when applied with appropriate series impedance, making it suitable for primary-stage surge protection in industrial AC/DC power supplies and DC distribution systems.
3.0C48CA-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):
- 48V
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 77.4V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- 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)
3.0C48CA-M3/H FAQ
1.How can I place an order for 3.0C48CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C48CA-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 3.0C48CA-M3/H reliable?
The price and inventory of 3.0C48CA-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 3.0C48CA-M3/H is usually 5 days.
3.What payment methods are accepted for 3.0C48CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C48CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C48CA-M3/H?
3.0C48CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C48CA-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 3.0C48CA-M3/H?
For technical support, including 3.0C48CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C48CA-M3/H requirements.
6.How does Aetrix verify that 3.0C48CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 3.0C48CA-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 3.0C48CA-M3/H meets industry standards.
7.What is the process for return or replacement of 3.0C48CA-M3/H?
All 3.0C48CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C48CA-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 3.0C48CA-M3/H part is unused and in its original packaging.
Return procedure for 3.0C48CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C48CA-M3/H Tags
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