MOC8102SD Equivalent & Substitute Parts

Part Overview

The MOC8102SD is an optoisolator with transistor output manufactured by onsemi, featuring 5300Vrms isolation voltage and single-channel configuration in 6-SMD surface mount packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The MOC8102SD serves applications requiring galvanic isolation with DC input and transistor output topology.

Substiute Parts

MOC8102SD

onsemiIn Stock: 12725MOC8102SD Datasheet

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CNY17F2SR2M

Fairchild SemiconductorIn Stock: 12716CNY17F2SR2M Datasheet

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MOC8102-X009

Vishay Semiconductor Opto DivisionIn Stock: 4860MOC8102-X009 Datasheet

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MOC8102-X017

Vishay Semiconductor Opto DivisionIn Stock: 4481MOC8102-X017 Datasheet

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MOC8102SM

Isocom Components 2004 LTDIn Stock: 815MOC8102SM Datasheet

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MOC8102SMT&R

Isocom Components 2004 LTDIn Stock: 866MOC8102SMT&R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MOC8102SD are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Number of Channels: 1 (all substitutes match)
• Mounting Type: Surface Mount (all substitutes match)
• Package / Case: 6-SMD, Gull Wing (all substitutes match)
• Output Type: Transistor (all substitutes match)
• Voltage - Output (Max): 30V minimum requirement
• Current - Output / Channel: 50mA minimum requirement
• Vce Saturation (Max): 400mV maximum
• Operating Temperature Range: -55°C ~ 100°C minimum coverage

Isolation Voltage Consideration: The MOC8102SD specifies 5300Vrms isolation. Substitutes with equal or higher isolation voltage (5300Vrms or greater) provide direct functional equivalence. The CNY17F2SR2M operates at 4170Vrms, which is lower and represents a reduced isolation capability.

Current Transfer Ratio: The MOC8102SD specifies 73% to 117% @ 10mA. Substitutes must fall within or overlap this range to ensure consistent switching behavior.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Preferred): MOC8102-X009 and MOC8102-X017 from Vishay Semiconductor Opto Division are direct functional equivalents to the MOC8102SD. Both maintain identical isolation voltage (5300Vrms), current transfer ratio range (73% to 117% @ 10mA), output voltage and current specifications, and operating temperature range. Both are active products with ROHS3 compliance and MSL 1 rating, providing long-term availability and regulatory compliance.

Functional Substitutes with Reduced Isolation: MOC8102SM and MOC8102SMT&R from Isocom Components 2004 LTD match all mechanical and electrical output specifications but specify 7.5Vpk isolation voltage instead of 5300Vrms. These are suitable only for applications where the lower isolation voltage is acceptable. Both are active products with ROHS3 compliance.

Reduced Isolation Substitute: CNY17F2SR2M from Fairchild Semiconductor operates at 4170Vrms isolation, which is lower than the MOC8102SD specification. This part is suitable only for applications with reduced isolation requirements. The current transfer ratio range (63% to 125% @ 10mA) overlaps with the MOC8102SD but extends beyond the original specification. Operating temperature range is -40°C ~ 100°C, which does not cover the full -55°C lower limit of the MOC8102SD.

Compliance Considerations: All active substitute parts carry ROHS3 compliance certification. The MOC8102-X009 and MOC8102-X017 provide the highest compatibility with the obsolete MOC8102SD in terms of regulatory status and long-term procurement viability.

Frequently Asked Questions (FAQ)

Q: Can MOC8102-X009 or MOC8102-X017 be used as direct replacements for MOC8102SD? A: Yes. Both parts maintain identical isolation voltage (5300Vrms), current transfer ratio specifications (73% to 117% @ 10mA), output characteristics (30V max, 50mA per channel), and operating temperature range (-55°C ~ 100°C). Packaging and mounting type are identical (6-SMD, Gull Wing). These are the preferred substitutes.

Q: What is the difference between MOC8102-X009 and MOC8102-X017? A: Both parts are manufactured by Vishay Semiconductor Opto Division and share identical electrical and mechanical specifications. The difference is in packaging format: MOC8102-X009 is supplied in Tube packaging, while MOC8102-X017 is also supplied in Tube packaging. Selection depends on procurement and inventory management requirements.

Q: Can MOC8102SM or MOC8102SMT&R be used instead of MOC8102SD? A: These parts match all mechanical specifications and output characteristics but specify 7.5Vpk isolation voltage instead of 5300Vrms. They are suitable only if the application does not require the higher isolation voltage of the original part. The difference between MOC8102SM and MOC8102SMT&R is packaging: MOC8102SM is supplied in Tube, while MOC8102SMT&R is supplied in Tape & Reel format.

Q: Is CNY17F2SR2M a suitable replacement for MOC8102SD? A: CNY17F2SR2M operates at 4170Vrms isolation, which is lower than the MOC8102SD specification of 5300Vrms. This part is suitable only for applications where reduced isolation voltage is acceptable. Additionally, the operating temperature range (-40°C ~ 100°C) does not extend to the -55°C lower limit of the MOC8102SD. Use only if application requirements permit these deviations.

Q: What are the key parameters that determine substitution compatibility? A: Critical parameters are: isolation voltage, current transfer ratio range, output voltage and current ratings, Vce saturation, operating temperature range, and package type. All substitutes must maintain the 6-SMD Gull Wing surface mount package and single-channel transistor output configuration. Isolation voltage and current transfer ratio are the most restrictive parameters for functional equivalence.

Q: Are all substitute parts ROHS3 compliant? A: All active substitute parts (MOC8102-X009, MOC8102-X017, MOC8102SM, MOC8102SMT&R) carry ROHS3 compliance certification. CNY17F2SR2M compliance status is not specified in the provided data.

Q: What is the difference between Tube and Tape & Reel packaging? A: Tube packaging is used for lower-volume orders and manual handling. Tape & Reel (TR) packaging is used for automated assembly processes and higher-volume production. Both formats contain the same component; selection depends on manufacturing process requirements and order quantities.