Vishay 3.0C110CA-M3/I

Overview

3.0C110CA-M3 from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor in SMC (DO-214AB) package, designed to protect sensitive electronics against high-energy transients. It delivers 3000 W peak pulse power (10/1000 μs), clamps at 177 V under 16.9 A surge, and operates across -55 °C to +175 °C junction temperature - used for safeguarding MOSFETs and sensor signal lines in industrial power supplies.

For engineers reviewing the 3.0C110CA-M3 datasheet, 3.0C110CA-M3 pinout, 3.0C110CA-M3 application, or 3.0C110CA-M3 equivalent, key selection criteria include its 110 V standoff voltage, bidirectional polarity, 30 kV ESD immunity per IEC 61000-4-2, low incremental surge resistance, and MSL Level 1 moisture sensitivity rating.

Technical Context

This TVS diode employs an avalanche breakdown mechanism to provide fast-response overvoltage protection with sub-nanosecond response time. Its bidirectional configuration enables symmetrical clamping on both polarities without external circuitry, making it suitable for AC-coupled or floating signal paths.

The device meets IEC 61000-4-2 (30 kV contact/air discharge) and is rated for 8/20 μs surge events up to 230 V at 130 A. Thermal performance is characterized by R_thJA = 90 °C/W and R_thJM = 4.0 °C/W, supporting robust operation in high-density PCB layouts with standard FR4 mounting.

Key Specifications

Pinout & Package

SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards; no polarity marking for bidirectional variants.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Compared with SMBJ110CA and 1.5KE110CA, the 3.0C110CA-M3 provides 5× higher surge power in an SMT package with superior thermal resistance (R_thJM = 4.0 °C/W), enabling reliable protection in high-power industrial inverters and telecom rectifiers without layout redesign.

Availability

3.0C110CA-M3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and long-term lifecycle support.

Supply support for 3.0C110CA-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, and protection devices with emphasis on reliability and high-power handling.

The 3.0CxxCA-M3 series is engineered for high-energy transient suppression in harsh environments, targeting industrial automation, telecom infrastructure, and automotive subsystems where sustained surge immunity is critical.

FAQ

What is the standoff voltage rating of the 3.0C110CA-M3?

The 3.0C110CA-M3 has a reverse stand-off voltage (V_WM) of 110 V, meaning it remains non-conductive up to this DC or RMS voltage level under normal operating conditions. This value ensures compatibility with 100 V nominal systems while providing margin against ripple and tolerance drift. The 3.0C110CA-M3 maintains leakage current below 1.0 μA at this voltage, minimizing standby power loss in always-on circuits.

Does the 3.0C110CA-M3 meet automotive transient standards?

Yes, the 3.0C110CA-M3 supports automotive applications by meeting ISO 7637-2 Pulse 5a (load dump) requirements when used with appropriate series impedance. Its 177 V clamping voltage at 16.9 A and 175 °C maximum junction temperature enable robust operation in body control modules and power distribution units. The 3.0C110CA-M3 is not AEC-Q200 qualified but is widely deployed in non-safety-critical automotive subsystems.

What is the thermal resistance of the 3.0C110CA-M3 from junction to mount?

The 3.0C110CA-M3 has a junction-to-mount thermal resistance (R_thJM) of 4.0 °C/W, measured using JEDEC 51-14 TDIM methodology. This low value reflects efficient heat transfer from the silicon die to the PCB copper pad, allowing sustained power dissipation during repetitive surge events. When mounted on a 2 oz. FR4 board with recommended pad layout, the 3.0C110CA-M3 achieves reliable thermal performance without heatsinking in most industrial applications.

Is the 3.0C110CA-M3 halogen-free and RoHS-compliant?

Yes, the 3.0C110CA-M3 carries the "-M3" suffix indicating full compliance with RoHS Directive 2011/65/EU and halogen-free status per IEC 61249-2-21. The molding compound contains no brominated flame retardants, and the matte tin-plated leads meet JESD 201 Class 2 whisker resistance requirements. This makes the 3.0C110CA-M3 suitable for export to EU, China, and other regulated markets without documentation exceptions.

How does the 3.0C110CA-M3 compare to the 3.0C100CA-M3 in clamping performance?

The 3.0C110CA-M3 clamps at 177 V under 16.9 A (10/1000 μs), whereas the 3.0C100CA-M3 clamps at 162 V under 18.5 A - reflecting higher V_WM and proportionally higher clamping voltage. Both share identical package, surge ratings, and thermal characteristics, but the 3.0C110CA-M3 is selected when system operating voltage exceeds 100 V and requires tighter margin above nominal rail. The 3.0C110CA-M3's 122–135 V breakdown range ensures predictable turn-on behavior in high-voltage DC links.