MOC8106 Optoisolator Equivalent & Substitute Parts

Part Overview

The MOC8106 is a 6-DIP optoisolator with transistor output, rated for 5300Vrms isolation voltage. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across isolation voltage, channel configuration, output type, and package specifications while meeting current product availability and compliance standards.

Key Parameters

Parameter	MOC8106 (onsemi)
Voltage - Isolation	5300Vrms
Number of Channels	1
Output Type	Transistor
Current Transfer Ratio (Min)	50% @ 10mA
Current Transfer Ratio (Max)	150% @ 10mA
Voltage - Output (Max)	70V
Current - Output / Channel	50mA
Package / Case	6-DIP (0.300", 7.62mm)
Operating Temperature	-55°C ~ 100°C
Mounting Type	Through Hole
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Isolation Voltage: Minimum 5000Vrms (MOC8106 baseline: 5300Vrms)
Number of Channels: 1 channel required
Output Type: Transistor or Transistor with Base output
Package / Case: 6-DIP (0.300", 7.62mm) through-hole mounting
Operating Temperature Range: Must encompass -55°C minimum
Current - Output / Channel: Minimum 50mA capability

Parts meeting these criteria are considered functionally equivalent for direct substitution in applications designed for the MOC8106.

Parameter Comparison

Parameter	MOC8106 (onsemi)	MOC8106M (onsemi)	CNY17-2-000E (Broadcom)	CNY17F-2 (Lite-On)	MOC8106 (Fairchild)
Voltage - Isolation	5300Vrms	4170Vrms	5000Vrms	5000Vrms	5300Vrms
Number of Channels	1	1	1	1	1
Output Type	Transistor	Transistor	Transistor with Base	Transistor	Transistor
Current Transfer Ratio (Min)	50% @ 10mA	50% @ 10mA	63% @ 10mA	63% @ 10mA	50% @ 10mA
Current Transfer Ratio (Max)	150% @ 10mA	150% @ 10mA	125% @ 10mA	125% @ 10mA	150% @ 10mA
Voltage - Output (Max)	70V	70V	70V	70V	70V
Current - Output / Channel	50mA	50mA	150mA	150mA	50mA
Vce Saturation (Max)	400mV	400mV	300mV	300mV	400mV
Operating Temperature	-55°C ~ 100°C	-40°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Package / Case	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Obsolete

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Compliance)

CNY17-2-000E (Broadcom Limited) and CNY17F-2 (Lite-On Inc.) are the recommended substitutes. Both parts are active products with ROHS3 compliance and REACH unaffected status. These parts exceed the isolation voltage requirement (5000Vrms vs. 5300Vrms baseline) and provide higher output current capability (150mA vs. 50mA). The CNY17-2-000E features transistor with base output, enabling enhanced circuit design flexibility. Both maintain the required 6-DIP package and -55°C operating temperature minimum.

Secondary Substitute (Active Status, Reduced Isolation Voltage)

MOC8106M (onsemi) is an active product with ROHS3 compliance. This part operates at 4170Vrms isolation voltage, which is below the original MOC8106 specification. Selection of MOC8106M is appropriate only for applications where the reduced isolation voltage meets system requirements. Operating temperature range is limited to -40°C minimum, restricting use in extended low-temperature environments.

Obsolete Alternative (Reference Only)

MOC8106 (Fairchild Semiconductor) shares identical electrical specifications with the onsemi MOC8106 but is classified as obsolete. This part is not recommended for new designs or production transitions.

Frequently Asked Questions (FAQ)

Q: Can MOC8106M substitute for MOC8106 in all applications?

A: MOC8106M is suitable only for applications where 4170Vrms isolation voltage is sufficient. The reduced isolation rating and -40°C minimum operating temperature limit its use compared to the original MOC8106 specification. Verify system isolation requirements before selection.

Q: What is the primary advantage of CNY17-2-000E and CNY17F-2 over MOC8106?

A: Both CNY17 variants provide 5000Vrms isolation voltage (meeting or exceeding MOC8106 requirements), higher output current capability (150mA vs. 50mA), and active product status with current compliance certifications. These characteristics make them suitable for new designs and production continuity.

Q: Are all substitute parts pin-compatible with MOC8106?

A: All listed substitutes use the 6-DIP (0.300", 7.62mm) package. However, CNY17-2-000E features transistor with base output, which may require circuit design modifications compared to standard transistor output types. Verify pinout and output configuration compatibility with your application circuit before implementation.

Q: What compliance certifications apply to these substitute parts?

A: CNY17-2-000E and CNY17F-2 are ROHS3 compliant with REACH unaffected status. MOC8106M is ROHS3 compliant with REACH unaffected status. All parts carry EAR99 ECCN classification and HTSUS code 8541.49.8000.

Q: Can I use these parts interchangeably in existing MOC8106 designs?

A: Electrical and mechanical compatibility exists for all active substitutes within the 6-DIP package. However, circuit design verification is required to confirm that isolation voltage, output current, and output type specifications align with application requirements. CNY17 variants with higher output current may require circuit adjustments in current-limited designs.

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