MOC8030 Equivalent & Substitute Parts

Part Overview

The MOC8030 is a high-voltage optoisolator with Darlington output, rated for 5300Vrms isolation voltage. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The MOC8030 serves applications requiring galvanic isolation in high-voltage environments with DC input control and Darlington output switching capability.

Substiute Parts

MOC8030

onsemiIn Stock: 1307MOC8030 Datasheet

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MOC8050M

onsemiIn Stock: 1721MOC8050M Datasheet

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LTV-715F

Lite-On Inc.In Stock: 910LTV-715F Datasheet

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MOC8030

onsemiIn Stock: 1307MOC8030 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC8030 is determined by the following critical parameters:

• Package compatibility: 6-DIP (0.300", 7.62mm) form factor for direct board-level replacement
• Isolation voltage: Minimum 4170Vrms to maintain high-voltage isolation performance
• Output type: Darlington configuration for compatible switching characteristics
• Output voltage rating: Minimum 35V to support typical application requirements
• Output current capacity: Minimum 80mA per channel
• Mounting type: Through Hole for PCB integration
• Input type: DC control signal compatibility

The MOC8050M and LTV-715F meet these substitution criteria while offering active product status and improved availability compared to the obsolete MOC8030.

Parameter Comparison

Engineering Selection Recommendations

MOC8050M (onsemi): Active product status with ROHS3 compliance. Isolation voltage of 4170Vrms is lower than the MOC8030 but remains suitable for applications not requiring the full 5300Vrms rating. Higher current transfer ratio (500% @ 10mA) provides improved switching performance. Output voltage and current ratings match the original specification. Operating temperature range of -40°C ~ 100°C is narrower than the MOC8030. Recommended for designs where the reduced isolation voltage is acceptable and active product support is required.

LTV-715F (Lite-On Inc.): Active product status with ROHS3 compliance. Isolation voltage of 5000Vrms closely matches the MOC8030 specification. Superior current transfer ratio (600% @ 1mA) enables faster switching response. Output voltage maximum of 35V and output current of 80mA are reduced compared to the MOC8030, limiting applicability to lower-power switching circuits. Operating temperature range of -25°C ~ 100°C is narrower. Recommended for high-isolation applications where output power requirements do not exceed 35V / 80mA specifications.

Frequently Asked Questions (FAQ)

Q: Can MOC8050M directly replace MOC8030 in all applications? The MOC8050M shares identical package, channel count, and output ratings with the MOC8030. The primary difference is isolation voltage: 4170Vrms versus 5300Vrms. Direct substitution is valid only if the application does not require the full 5300Vrms isolation specification. Verify isolation voltage requirements in the circuit design before substitution.

Q: What are the output power limitations of LTV-715F compared to MOC8030? The LTV-715F is rated for 35V maximum output voltage and 80mA maximum output current per channel, compared to the MOC8030's 80V and 150mA ratings. This limits the LTV-715F to applications requiring lower output power. Calculate maximum output power: MOC8030 supports up to 12W, while LTV-715F supports up to 2.8W. Select LTV-715F only for applications within these power constraints.

Q: Are all substitute parts compatible with the same PCB footprint? All three parts use 6-DIP (0.300", 7.62mm) package format with identical pin spacing and Through Hole mounting. PCB footprints are directly compatible. No layout modifications are required for mechanical substitution.

Q: What is the impact of different operating temperature ranges? The MOC8030 operates from -55°C to 100°C, while MOC8050M operates from -40°C to 100°C and LTV-715F from -25°C to 100°C. If the application requires operation below -40°C, only the MOC8030 is suitable. For standard industrial temperature ranges (-40°C to 85°C), both substitutes are acceptable.

Q: How do current transfer ratios affect circuit design? Current transfer ratio determines the input current required to achieve specified output current. MOC8050M (500% @ 10mA) and LTV-715F (600% @ 1mA) require lower input drive current than MOC8030 (300% @ 10mA). This improves input circuit efficiency and may reduce input component requirements. Verify input circuit compatibility with the substitute part's CTR specification.