MOC8030S Optoisolator Equivalent & Substitute Parts

Part Overview

The MOC8030S is a 5.3kV isolation Darlington output optoisolator manufactured by onsemi in a 6-SMD surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MOC8030S provides single-channel isolation with 300% minimum current transfer ratio at 10mA input and supports output currents up to 150mA, making it suitable for industrial control and power management applications requiring high-voltage isolation.

Substiute Parts

MOC8030S

onsemiIn Stock: 1032MOC8030S Datasheet

Current PartRFQ

4N32FSM

Isocom Components 2004 LTDIn Stock: 9254N32FSM Datasheet

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6N138-000E

Broadcom LimitedIn Stock: 18296N138-000E Datasheet

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MOC8030SM

Isocom Components 2004 LTDIn Stock: 1086MOC8030SM Datasheet

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MOC8030SMT&R

Isocom Components 2004 LTDIn Stock: 943MOC8030SMT&R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC8030S is determined by the following critical parameters:

• Single-channel Darlington output configuration
• Isolation voltage rating of 5300Vrms or higher
• 6-SMD surface mount package with gull wing leads
• Current transfer ratio minimum of 300% at specified input current
• Output voltage rating of 80V or higher
• Output current capability of 80mA or higher
• Operating temperature range compatibility
• Input type: DC

Substitute parts are grouped based on matching these core electrical and mechanical specifications. Parts that deviate in isolation voltage, package type, or output current capability are evaluated for functional equivalence within application constraints.

Parameter Comparison

Engineering Selection Recommendations

MOC8030SM and MOC8030SMT&R (Isocom) are the primary direct substitutes for the obsolete MOC8030S. Both parts maintain the 6-SMD surface mount package, matching mechanical compatibility. The isolation voltage is rated at 5000Vrms compared to the original 5300Vrms, representing a 300Vrms reduction. Both parts are active products with ROHS3 compliance and extended operating temperature ranges (-55°C to 110°C). Output current is reduced to 80mA versus the original 150mA. The MOC8030SMT&R variant is supplied in tape and reel packaging, while MOC8030SM is supplied in tube packaging.

4N32FSM (Isocom) maintains the 5300Vrms isolation rating and 6-SMD package format. This part is active and provides equivalent isolation performance. However, output current is limited to 80mA, and the operating temperature range is narrower (-25°C to 100°C). Rise and fall times are specified at 60µs and 53µs respectively.

6N138-000E (Broadcom) is an active product with ROHS3 compliance but differs significantly in package type (8-DIP through-hole versus 6-SMD surface mount) and isolation voltage (3750Vrms). The maximum output voltage is 7V compared to 80V for the original part. This substitute is suitable only for applications where through-hole mounting is acceptable and lower isolation voltage meets requirements.

Frequently Asked Questions (FAQ)

Q: Can MOC8030SM or MOC8030SMT&R be used as direct replacements for MOC8030S?

A: Yes, both parts are functionally equivalent for most applications. The primary differences are the reduced isolation voltage (5000Vrms versus 5300Vrms) and reduced output current (80mA versus 150mA). Verify that your application does not require the full 150mA output current or the additional 300Vrms isolation margin.

Q: What is the difference between MOC8030SM and MOC8030SMT&R?

A: Both parts are electrically identical. The difference is packaging format: MOC8030SM is supplied in tube packaging, while MOC8030SMT&R is supplied in tape and reel format. Select based on your procurement and assembly requirements.

Q: Is 4N32FSM a suitable substitute?

A: 4N32FSM maintains the 5300Vrms isolation rating and 6-SMD package, making it compatible for applications requiring the full isolation voltage. However, output current is limited to 80mA, and the operating temperature range is narrower (-25°C to 100°C). Use this part only if your application operates within the specified temperature range and does not exceed 80mA output current.

Q: Can 6N138-000E replace MOC8030S?

A: 6N138-000E is not a direct substitute due to significant differences: it uses 8-DIP through-hole packaging instead of 6-SMD surface mount, has a lower isolation voltage (3750Vrms), and a maximum output voltage of only 7V. This part is suitable only for through-hole designs with lower isolation and output voltage requirements.

Q: What are the key parameters I should verify when selecting a substitute?

A: Verify isolation voltage rating, output current capability, maximum output voltage, operating temperature range, and package type. Confirm that your application does not exceed the output current limits of the substitute part and that the isolation voltage meets your safety and regulatory requirements.

Q: Are all substitute parts RoHS compliant?

A: MOC8030SM, MOC8030SMT&R, and 6N138-000E are ROHS3 compliant. RoHS status for 4N32FSM is not specified in the provided data. Confirm RoHS compliance with your supplier if this is a requirement for your application.