H11AV2AVM Equivalent & Substitute Parts

Part Overview

The H11AV2AVM is an optoisolator transistor with base output manufactured by onsemi, designed for high-voltage isolation applications requiring 7500Vpk isolation rating. This component features a single-channel configuration in a 6-DIP through-hole package with a 50% minimum current transfer ratio at 10mA input current.

The H11AV2AVM is classified as obsolete. Identifying suitable substitute components is necessary to support ongoing system maintenance, design updates, and procurement continuity for applications currently utilizing this part.

Substiute Parts

H11AV2AVM

onsemiIn Stock: 1181H11AV2AVM Datasheet

Current PartRFQ

CNY173SM

onsemiIn Stock: 2035CNY173SM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the H11AV2AVM is determined by the following critical parameters:

• Isolation Voltage: The substitute must maintain isolation voltage at or above 7500Vpk to preserve system safety margins
• Number of Channels: Single-channel configuration required
• Output Type: Transistor with base output configuration mandatory
• Operating Temperature Range: Must support -40°C to 100°C minimum
• Vce Saturation: Maximum 400mV specification must be met
• Output Voltage Rating: 70V maximum output voltage capability required

The CNY173SM meets the functional isolation and output characteristics but operates at a lower isolation voltage rating (4170Vrms). This part is suitable only for applications where the lower isolation voltage is acceptable within system design margins.

Parameter Comparison

Engineering Selection Recommendations

H11AV2AVM (Obsolete): This part is no longer in active production. Continued use is limited to existing inventory or secondary market sources.

CNY173SM (Active): This part is in active production status with current manufacturing support. The CNY173SM provides superior current transfer ratio performance (100-200% versus 50% minimum) and faster switching characteristics (2µs/3µs turn-on/turn-off versus 15µs). However, the isolation voltage is reduced from 7500Vpk to 4170Vrms.

Selection between these parts depends on isolation voltage requirements. Applications requiring 7500Vpk isolation must retain the H11AV2AVM or identify alternative high-isolation optoisolators. Applications tolerating 4170Vrms isolation benefit from CNY173SM's active production status, improved current transfer ratio, and faster response time.

Frequently Asked Questions (FAQ)

Q: Can CNY173SM directly replace H11AV2AVM in all applications?

A: No. The CNY173SM operates at 4170Vrms isolation voltage compared to H11AV2AVM's 7500Vpk. Direct substitution is valid only for applications where the lower isolation voltage meets system design requirements. Verify isolation voltage margins in your specific application before substitution.

Q: What is the difference between Vpk and Vrms isolation ratings?

A: Vpk (peak voltage) and Vrms (RMS voltage) represent different measurement standards for isolation voltage. These values are not directly comparable without conversion factors specific to the waveform. Consult application requirements to determine which standard applies to your system.

Q: Does the mounting type difference affect substitution?

A: Yes. H11AV2AVM uses through-hole 6-DIP packaging while CNY173SM uses surface-mount 6-SMD packaging. PCB layout and assembly process changes are required for substitution. Through-hole and surface-mount components require different board designs and assembly equipment.

Q: Why does CNY173SM have higher current transfer ratio?

A: Current transfer ratio is a performance characteristic of the optoisolator design. CNY173SM's 100-200% ratio versus H11AV2AVM's 50% minimum reflects different internal LED and photodetector configurations. Higher current transfer ratio generally indicates improved efficiency and reduced input current requirements.

Q: Is CNY173SM RoHS compliant?

A: Yes. CNY173SM is ROHS3 compliant. H11AV2AVM RoHS status is not specified in the provided data. Verify RoHS compliance requirements for your application and procurement standards.