MOC8050 Equivalent & Substitute Parts

Part Overview

The MOC8050 is a high-voltage optoisolator with Darlington output manufactured by onsemi, rated for 5300Vrms isolation voltage in a 6-DIP through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MOC8050 serves applications requiring galvanic isolation with high voltage withstand capability and moderate output current capacity.

Substiute Parts

MOC8050

onsemiIn Stock: 3945MOC8050 Datasheet

Current PartRFQ

MOC8050M

onsemiIn Stock: 1721MOC8050M Datasheet

DirectRFQ

LTV-715F

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

SimilarRFQ

MOC8050

onsemiIn Stock: 3945MOC8050 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC8050 is determined by the following critical parameters: package compatibility (6-DIP through-hole), isolation voltage rating, Darlington output configuration, single-channel architecture, and output current capacity. Parts are grouped into two categories:

Direct Manufacturer Equivalent (MOC8050M): Maintains the same base product family from onsemi with identical package, channel count, and output type. Isolation voltage is reduced to 4170Vrms, and operating temperature range is narrower (-40°C to 100°C versus -55°C to 100°C). This part is active and RoHS3 compliant.

Similar Manufacturer Alternative (LTV-715F): Manufactured by Lite-On Inc., this part shares the same 6-DIP package, single-channel Darlington output, and comparable isolation voltage (5000Vrms). However, it has reduced maximum output voltage (35V versus 80V) and lower output current capacity (80mA versus 150mA). Operating temperature range is -25°C to 100°C.

Parameter Comparison

Engineering Selection Recommendations

MOC8050M Selection: Choose this part when the design operates within the -40°C to 100°C temperature range and isolation voltage requirement does not exceed 4170Vrms. The MOC8050M is the preferred substitute due to active product status, RoHS3 compliance, and identical output current and voltage specifications. Identical package footprint ensures direct PCB compatibility.

LTV-715F Selection: This part is suitable only when application requirements allow reduced maximum output voltage (35V maximum versus 80V) and lower output current capacity (80mA versus 150mA). The LTV-715F offers comparable isolation voltage (5000Vrms) and maintains the 6-DIP package form factor. Operating temperature range (-25°C to 100°C) must be verified against application requirements. RoHS3 compliance is confirmed.

MOC8050 (Original): This part remains listed as a parametric equivalent due to identical electrical specifications. However, obsolete status and lack of active supply make it unsuitable for new designs or production restocking.

Frequently Asked Questions (FAQ)

Q: Can MOC8050M be used as a direct replacement for MOC8050?

A: MOC8050M is compatible for applications where isolation voltage of 4170Vrms is sufficient and operating temperature remains within -40°C to 100°C. Output current (150mA) and maximum output voltage (80V) are identical. PCB footprint compatibility is confirmed for 6-DIP packages.

Q: What are the key differences between MOC8050 and LTV-715F?

A: The primary differences are maximum output voltage (80V versus 35V) and output current capacity (150mA versus 80mA). Isolation voltage is comparable (5300Vrms versus 5000Vrms). Operating temperature range is narrower for LTV-715F (-25°C to 100°C). Both use identical 6-DIP packages.

Q: Is LTV-715F suitable for high-current applications?

A: No. LTV-715F maximum output current is 80mA, compared to 150mA for MOC8050. Applications requiring output current above 80mA must use MOC8050 or MOC8050M.

Q: Are all substitute parts RoHS3 compliant?

A: MOC8050M and LTV-715F are both ROHS3 compliant. The original MOC8050 RoHS status is not specified in available documentation.

Q: Can these parts be used interchangeably on the same PCB?

A: All three parts use identical 6-DIP (0.300", 7.62mm) packages and through-hole mounting, allowing physical interchangeability. Electrical compatibility depends on application voltage and current requirements as detailed in the parameter comparison table.

Q: What is the minimum isolation voltage requirement for substitution?

A: Substitution requires isolation voltage rating equal to or greater than the application requirement. MOC8050M (4170Vrms) is suitable only for applications rated at 4170Vrms or lower. LTV-715F (5000Vrms) and MOC8050 (5300Vrms) support higher isolation requirements.