MOC3009 Equivalent & Substitute Parts

Part Overview

The MOC3009 is an optoisolator with triac output manufactured by onsemi, designed for applications requiring galvanic isolation up to 5300Vrms. This component features a single channel configuration in a 6-DIP through-hole package. The MOC3009 is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. Substitute parts must maintain compatibility with the 6-DIP package footprint and preserve core isolation and switching characteristics.

Substiute Parts

MOC3009

onsemiIn Stock: 2042MOC3009 Datasheet

Current PartRFQ

MOC3010M

onsemiIn Stock: 6728MOC3010M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MOC3009 is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use 6-DIP (0.300", 7.62mm) through-hole packaging to ensure PCB footprint compatibility
• Output Type: Triac output configuration must be maintained for circuit functionality
• Number of Channels: Single-channel operation is required
• Isolation Voltage: The substitute must support the application's isolation requirements; lower isolation ratings may be acceptable depending on circuit design margins
• Current Characteristics: LED trigger current (Ift), hold current (Ih), and forward current (If) must be within acceptable operating ranges for the application

The MOC3010M qualifies as a substitute based on matching package type, output configuration, channel count, and through-hole mounting. While isolation voltage is lower (4170Vrms vs. 5300Vrms), the 6-DIP package and triac output topology enable direct functional replacement in applications where the reduced isolation rating is acceptable.

Parameter Comparison

Engineering Selection Recommendations

The MOC3010M is the designated substitute for the obsolete MOC3009. Both components are manufactured by onsemi and share identical package geometry and through-hole mounting characteristics, ensuring direct PCB compatibility without layout modifications.

The MOC3010M carries active product status, ensuring ongoing availability and manufacturing support. The component is ROHS3 compliant, meeting current environmental and regulatory requirements. The MOC3009, classified as obsolete, no longer receives manufacturing or technical support from onsemi.

The primary electrical difference is isolation voltage: MOC3010M provides 4170Vrms compared to MOC3009's 5300Vrms. This reduction must be evaluated against application requirements. The MOC3010M exhibits lower LED trigger current (15mA vs. 30mA), which may reduce driver circuit power consumption. Forward current capability is slightly higher on the MOC3010M (60mA vs. 50mA), providing additional margin in triac gate drive applications.

Frequently Asked Questions (FAQ)

Q: Can MOC3010M directly replace MOC3009 without PCB modifications?

A: Yes. Both components use identical 6-DIP (0.300", 7.62mm) through-hole packaging, enabling direct pin-for-pin substitution without PCB layout changes.

Q: What is the significance of the lower isolation voltage in MOC3010M?

A: The MOC3010M provides 4170Vrms isolation versus MOC3009's 5300Vrms. Applications must confirm that 4170Vrms isolation meets circuit safety and regulatory requirements. If higher isolation is mandatory, alternative components outside the MOC300x series may be necessary.

Q: Does the lower LED trigger current of MOC3010M affect circuit design?

A: The MOC3010M requires 15mA maximum LED trigger current compared to MOC3009's 30mA. This lower requirement reduces driver circuit power dissipation and may simplify input stage design. Existing driver circuits designed for 30mA operation will function with MOC3010M but will not fully utilize the lower trigger threshold.

Q: Are there compliance differences between these components?

A: MOC3010M is ROHS3 compliant and carries active product status. MOC3009 is obsolete and no longer supported by onsemi. For new designs or production continuity, MOC3010M is the recommended choice.

Q: What packaging options are available for MOC3010M?

A: MOC3010M is supplied in tube packaging. Ensure procurement and handling procedures accommodate this packaging format.