MKP3V240

Overview

The MKP3V240 is a bidirectional SIDAC from onsemi, designed for direct interface with AC power lines. It features a peak repetitive off-state voltage (VDRM/VRRM) of 180 V and an RMS on-state current rating of 1.0 A at 80°C case temperature. The device switches to a low-voltage on-state upon reaching its breakover voltage in either direction, maintaining conduction until the current drops below the holding threshold. Key electrical parameters include a typical breakover voltage of 220 V, a maximum surge current of 20 A, and a junction temperature range of -40°C to +125°C.

Feature Summary

• Bidirectional triggering capability for direct AC line interfacing
• Glass passivation ensures reliable operation under high pressure conditions
• Plastic axial lead package provides high pulse current capability

Applications

• High Pressure Sodium Vapor Lighting
• Strobes and Flashers
• Ignitors
• Triggering Gates of SCR's and Triacs

Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration. Standard units are available in boxes of 500, while tape and reel options contain 1500 units. Confirm RoHS compliance status via the 'G' suffix designation. Ensure the selected variant matches the required shipping format for automated assembly processes or manual insertion needs.

Selection Notes

Select the MKP3V240 when a higher breakover voltage than the MKP3V120 is required. The 180 V blocking voltage suits applications demanding higher trigger thresholds. Verify that the 1.0 A RMS current rating meets the circuit load requirements. Consider thermal derating curves if operating near the maximum junction temperature limits.

Part Context

This component belongs to the MKP3Vxx0 series of high-voltage bidirectional triggers manufactured by onsemi. It shares the same CASE 267-03 axial lead package and fundamental switching characteristics as the MKP3V120, differing primarily in its specified breakdown voltage levels. The series is optimized for cost-effective protection and triggering in mains-powered lighting systems.

Replacement Considerations

Cross-reference with Littelfuse MKP3V120RLG or Motorola MKP3V120 RLG variants for similar SIDAC specifications. Verify pinout compatibility and thermal resistance values before substitution. Ensure the replacement device meets the same UL registration file E116110 requirements if safety certification is mandatory for the end application.

FAQ

What is the breakover voltage range for the MKP3V240?

The breakover voltage ranges from a minimum of 220 V to a maximum of 250 V at a breakover current of 200 µA.

How does the MKP3V240 maintain conduction after triggering?

Conduction continues like a Triac until the main terminal current drops below the dynamic holding current of 100 mA.

What is the maximum non-repetitive surge current?

The device can withstand a peak non-repetitive surge current of 20 A for a single 60 Hz sine wave cycle.