MOC8103300 Equivalent & Substitute Parts

Part Overview

The MOC8103300 is a transistor output optoisolator 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 procurement. The MOC8103300 provides single-channel isolation with DC input and transistor output configuration, suitable for applications requiring galvanic isolation in industrial and consumer electronics.

Substiute Parts

MOC8103300

onsemiIn Stock: 1172MOC8103300 Datasheet

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CNY17F3VM

Fairchild SemiconductorIn Stock: 20492CNY17F3VM Datasheet

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MOC8103

onsemiIn Stock: 10216MOC8103 Datasheet

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MOC8103

onsemiIn Stock: 10216MOC8103 Datasheet

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MOC8103-X001

Vishay Semiconductor Opto DivisionIn Stock: 969MOC8103-X001 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC8103300 is determined by the following critical parameters:

Primary Substitution Criteria:

• Number of Channels: 1 (single channel only)
• Input Type: DC
• Output Type: Transistor
• Package / Case: 6-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Voltage - Isolation: 5300Vrms or higher
• Current - Output / Channel: 50mA or higher
• Voltage - Output (Max): 30V or higher
• Operating Temperature Range: Must encompass -55°C ~ 100°C or be compatible with application requirements

Substitute Parts Identified:

1. MOC8103 (onsemi) - Identical electrical and mechanical specifications to MOC8103300; obsolete status
2. MOC8103-X001 (Vishay Semiconductor Opto Division) - Meets all primary criteria; active product status with RoHS3 compliance
3. CNY17F3VM (Fairchild Semiconductor) - Meets package and channel requirements; lower isolation voltage (4170Vrms) and higher maximum output voltage (70V); active product status

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Preferred for Obsolete Part Replacement):

MOC8103-X001 is the primary recommended substitute. It maintains identical isolation voltage (5300Vrms), current transfer ratio range (108%-173%), output voltage capability (30V), and operating temperature range (-55°C ~ 100°C) as the MOC8103300. The MOC8103-X001 is actively manufactured by Vishay Semiconductor Opto Division and carries RoHS3 compliance, providing long-term availability and regulatory alignment for new designs and production continuity.

MOC8103 (onsemi) provides electrical equivalence but shares obsolete product status with the MOC8103300, limiting its utility for long-term procurement strategies.

Alternative Substitute (Conditional Application):

CNY17F3VM (Fairchild Semiconductor) is an active product suitable for applications where the lower isolation voltage (4170Vrms) is acceptable. This part offers higher maximum output voltage (70V) and broader current transfer ratio range (100%-200%), making it applicable to designs with different output voltage requirements. The operating temperature range (-40°C ~ 100°C) is narrower at the low end, requiring verification against application minimum temperature specifications.

Compliance Considerations:

MOC8103-X001 is the only substitute with documented RoHS3 compliance, making it the appropriate choice for designs subject to RoHS directives. All parts maintain ECCN EAR99 classification and HTSUS code 8541.49.8000.

Frequently Asked Questions (FAQ)

Q: Can MOC8103-X001 be used as a direct replacement for MOC8103300?

A: Yes. MOC8103-X001 meets all electrical and mechanical specifications of the MOC8103300, including isolation voltage (5300Vrms), current transfer ratio (108%-173% @ 10mA), output voltage (30V max), output current (50mA), and operating temperature range (-55°C ~ 100°C). Both use identical 6-DIP through-hole packaging. MOC8103-X001 is actively manufactured and RoHS3 compliant.

Q: What are the key differences between MOC8103-X001 and CNY17F3VM?

A: MOC8103-X001 maintains the 5300Vrms isolation voltage of the original MOC8103300, while CNY17F3VM provides 4170Vrms isolation. CNY17F3VM offers higher maximum output voltage (70V vs. 30V) and broader current transfer ratio range (100%-200% vs. 108%-173%). The operating temperature range differs: MOC8103-X001 spans -55°C ~ 100°C, while CNY17F3VM spans -40°C ~ 100°C. Both share identical 6-DIP package and 50mA output current rating.

Q: Is the 6-DIP package pinout identical across all substitutes?

A: All substitute parts use the 6-DIP (0.300", 7.62mm) through-hole package. Pinout compatibility must be verified against specific device datasheets, as package designation alone does not guarantee identical pin assignments.

Q: Why is MOC8103 not recommended despite being electrically identical?

A: MOC8103 shares obsolete product status with MOC8103300. For long-term design support and procurement reliability, MOC8103-X001 is preferred as an active product with documented RoHS3 compliance and ongoing manufacturer support.

Q: Can CNY17F3VM be used in applications requiring 5300Vrms isolation?

A: No. CNY17F3VM provides 4170Vrms isolation, which is insufficient for applications requiring 5300Vrms isolation. Use MOC8103-X001 for applications with 5300Vrms isolation requirements.

Q: What compliance certifications apply to these optoisolators?

A: All parts carry ECCN EAR99 classification and HTSUS code 8541.49.8000. MOC8103-X001 is RoHS3 compliant. MOC8103300 and MOC8103 are REACH Unaffected. Compliance requirements for specific applications must be verified against regional regulations.