CNY171SVM

Transistor, Photovoltaic Output Optoisolators Overview

The CNY171SVM is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor with base lead for enhanced switching performance and stability. The device utilizes surface-mount technology in a 6-SMD, DFN-style package. Key electrical specifications include a minimum current transfer ratio of 40% at 10 mA input current, a collector-emitter breakdown voltage of 70 V, and a maximum forward voltage of 1.65 V. It provides high isolation capability with a rated insulation voltage of 4170 Vrms. The component operates within a temperature range of -40°C to +100°C and supports a maximum collector current of 50 mA.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrated base lead on the phototransistor output to improve switching speed and reduce storage time.
• High isolation voltage rating suitable for demanding safety applications.
• Surface-mount packaging design optimized for automated assembly processes.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission between microcontrollers and power stages
• Solid-state relay driver circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SVM' to confirm the surface-mount variant with base lead configuration. Ensure compatibility with the target PCB footprint, as this model differs from through-hole DIP versions. Confirm RoHS compliance status via the official datasheet before integration. Cross-reference the manufacturer part number against authorized distributor catalogs to avoid counterfeit components. Validate that the 6-SMD package dimensions match the design constraints.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when surface-mount assembly is required alongside the need for improved switching characteristics provided by the base lead. Compare the 4170 Vrms isolation rating against system safety requirements. Evaluate the 40% minimum current transfer ratio to ensure adequate signal coupling efficiency. Consider the operating temperature range of -40°C to +100°C for environmental suitability. Assess the physical package size relative to available board space compared to alternative DIP packages.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the CNY171M series of high BVceo phototransistor optocouplers. The series includes both through-hole and surface-mount variants designed for general-purpose isolation tasks. The SMD version offers similar electrical performance to its DIP counterpart while enabling compact circuit board layouts. The family is recognized for reliability in industrial and commercial environments.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct pin-compatible replacements may include other CNY171 series SMD variants or equivalent transistor-output optocouplers with base leads. Verify that substitute parts meet the 4170 Vrms isolation requirement and 70 V collector-emitter voltage rating. Ensure the replacement maintains the same 6-SMD package outline for mechanical fit.