MOC8113M Equivalent & Substitute Parts

Part Overview

The MOC8113M is a high-voltage optoisolator with transistor output manufactured by onsemi, designed for galvanic isolation applications requiring 7500Vpk isolation voltage. This component features a single channel configuration in a 6-DIP through-hole package with a current transfer ratio of 100% at 10mA input.

The MOC8113M is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity and ensure availability for new production runs or system updates.

Substiute Parts

MOC8113M

onsemiIn Stock: 10187MOC8113M Datasheet

Current PartRFQ

CNY17F3M

onsemiIn Stock: 60626CNY17F3M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MOC8113M is determined by the following critical parameters:

• Isolation Voltage: The substitute must meet or exceed the 7500Vpk isolation requirement for electrical safety and regulatory compliance.
• Output Type: Must be transistor output to maintain circuit compatibility.
• Number of Channels: Single channel configuration required.
• Package / Case: 6-DIP through-hole package with 0.300" (7.62mm) spacing for PCB compatibility.
• Operating Temperature Range: Must support -40°C to 100°C operation.
• Vce Saturation: Maximum 400mV saturation voltage for output switching performance.

The CNY17F3M is listed as a substitute part. However, the CNY17F3M features an isolation voltage of 4170Vrms, which is below the 7500Vpk isolation specification of the MOC8113M. This represents a reduction in isolation capability and does not meet the substitution criteria for applications requiring the full 7500Vpk isolation voltage.

Parameter Comparison

Engineering Selection Recommendations

The MOC8113M is an obsolete product with active inventory available. The CNY17F3M is an active product manufactured by the same supplier (onsemi) and shares identical package, mounting type, and most electrical characteristics.

However, the isolation voltage specification differs significantly. The MOC8113M provides 7500Vpk isolation, while the CNY17F3M provides 4170Vrms isolation. These are not equivalent specifications. Selection between these components must be based on the actual isolation voltage requirement of the application circuit.

For applications requiring 7500Vpk isolation voltage, the CNY17F3M does not qualify as a direct substitute. For applications where 4170Vrms isolation voltage is sufficient, the CNY17F3M offers the advantage of active product status and current manufacturing support from onsemi.

The CNY17F3M carries RoHS3 compliance certification, whereas the MOC8113M compliance status is not specified in the provided data.

Frequently Asked Questions (FAQ)

Q: Can the CNY17F3M replace the MOC8113M in all applications?

A: No. The CNY17F3M has a lower isolation voltage rating (4170Vrms) compared to the MOC8113M (7500Vpk). Substitution is only valid for applications where the lower isolation voltage meets the circuit requirements.

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

A: Vpk (peak voltage) and Vrms (RMS voltage) are different measurement standards for isolation voltage. Direct comparison requires conversion or reference to the specific isolation test methodology used by each manufacturer. The values provided (7500Vpk vs. 4170Vrms) represent different isolation specifications and should not be assumed equivalent.

Q: Are the 6-DIP packages physically identical?

A: Both the MOC8113M and CNY17F3M use 6-DIP packages with 0.300" (7.62mm) spacing. They are mechanically compatible for through-hole PCB mounting.

Q: What is the product status difference between these parts?

A: The MOC8113M is obsolete but has current inventory. The CNY17F3M is an active product with ongoing manufacturing support from onsemi. Active products typically offer better long-term availability and supply chain stability.

Q: Are there compliance differences between these parts?

A: The CNY17F3M is RoHS3 compliant. The MOC8113M compliance status is not specified in the available data. Both parts are REACH unaffected and carry EAR99 ECCN classification.