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MOC8107SD Equivalent & Substitute Parts
Part Overview
The MOC8107SD is an optoisolator with transistor output manufactured by onsemi, designed for high-voltage isolation applications requiring 5300Vrms isolation rating. This component features a single channel configuration in a 6-SMD surface mount package with a maximum output current of 50mA per channel.
The MOC8107SD is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity and ensure component availability for new production runs and system maintenance.
Substiute Parts
Key Parameters
| Parameter | MOC8107SD |
|---|---|
| Voltage - Isolation | 5300Vrms |
| Number of Channels | 1 |
| Current Transfer Ratio (Min) | 100% @ 10mA |
| Current Transfer Ratio (Max) | 300% @ 10mA |
| Output Type | Transistor |
| Voltage - Output (Max) | 70V |
| Current - Output / Channel | 50mA |
| Vce Saturation (Max) | 400mV |
| Operating Temperature | -55°C ~ 100°C |
| Package / Case | 6-SMD, Gull Wing |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the MOC8107SD is determined by the following critical parameters:
- Voltage - Isolation Rating: The substitute must maintain isolation voltage capability. The MOC8107SD specifies 5300Vrms isolation.
- Output Configuration: Single channel transistor output with maximum 70V output voltage and 50mA per channel current.
- Current Transfer Ratio: Operating range of 100% to 300% @ 10mA input current.
- Package Compatibility: 6-SMD, Gull Wing surface mount package for direct PCB layout compatibility.
- Saturation Voltage: Maximum Vce saturation of 400mV for switching performance.
- Temperature Range: Operating temperature specification of -55°C to 100°C.
The CNY17F3SR2M is identified as a substitute based on matching output type, package configuration, and core electrical parameters. However, the isolation voltage rating differs and must be evaluated against application requirements.
Parameter Comparison
| Parameter | MOC8107SD | CNY17F3SR2M |
|---|---|---|
| Voltage - Isolation | 5300Vrms | 4170Vrms |
| Number of Channels | 1 | 1 |
| Current Transfer Ratio (Min) | 100% @ 10mA | 100% @ 10mA |
| Current Transfer Ratio (Max) | 300% @ 10mA | 200% @ 10mA |
| Turn On / Turn Off Time (Typ) | 2µs, 3µs | 2µs, 3µs |
| Output Type | Transistor | Transistor |
| Voltage - Output (Max) | 70V | 70V |
| Current - Output / Channel | 50mA | 50mA |
| Vce Saturation (Max) | 400mV | 400mV |
| Operating Temperature | -55°C ~ 100°C | -40°C ~ 100°C |
| Package / Case | 6-SMD, Gull Wing | 6-SMD, Gull Wing |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The CNY17F3SR2M is an active product with current manufacturing support, addressing the obsolescence status of the MOC8107SD. Both components share identical package configuration (6-SMD, Gull Wing) and mounting type, enabling direct PCB layout compatibility without redesign.
The CNY17F3SR2M is RoHS3 compliant, providing regulatory advantage over the MOC8107SD for new designs. Both components carry REACH Unaffected status and EAR99 ECCN classification.
The primary electrical difference is the isolation voltage rating: MOC8107SD at 5300Vrms versus CNY17F3SR2M at 4170Vrms. This 1130Vrms reduction must be evaluated against application isolation requirements. The CNY17F3SR2M also exhibits a reduced maximum current transfer ratio (200% versus 300%) and narrower operating temperature range (-40°C to 100°C versus -55°C to 100°C).
Selection of CNY17F3SR2M is appropriate for applications where the 4170Vrms isolation rating is sufficient and the narrower temperature range is acceptable.
Frequently Asked Questions (FAQ)
Q: Can the CNY17F3SR2M directly replace the MOC8107SD without PCB modifications?
A: Yes, both components use identical 6-SMD, Gull Wing package configuration. Direct pin-for-pin substitution is possible without PCB layout changes.
Q: What is the primary difference between these optoisolators?
A: The isolation voltage rating differs: MOC8107SD provides 5300Vrms isolation, while CNY17F3SR2M provides 4170Vrms isolation. The CNY17F3SR2M also has a lower maximum current transfer ratio (200% versus 300%) and narrower operating temperature range.
Q: Is the CNY17F3SR2M suitable for applications requiring 5300Vrms isolation?
A: No. The CNY17F3SR2M isolation rating of 4170Vrms is lower than the MOC8107SD specification. Applications requiring 5300Vrms isolation must use components with equivalent or higher isolation voltage ratings.
Q: What is the temperature operating range difference?
A: The MOC8107SD operates from -55°C to 100°C, while the CNY17F3SR2M operates from -40°C to 100°C. Applications requiring operation below -40°C must use the MOC8107SD or equivalent components with extended low-temperature ratings.
Q: Does the CNY17F3SR2M meet current regulatory requirements?
A: Yes, the CNY17F3SR2M is RoHS3 compliant and carries REACH Unaffected status, meeting current regulatory standards for new product designs.
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