MOC8106S Equivalent & Substitute Parts

Part Overview

The MOC8106S 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 MOC8106S provides galvanic isolation suitable for applications requiring high voltage isolation with transistor output switching capability.

Key Parameters

Parameter	MOC8106S Value
Manufacturer	onsemi
Category	Optoisolators
Product Status	Obsolete
Number of Channels	1
Voltage - Isolation	5300Vrms
Current Transfer Ratio (Min)	50% @ 10mA
Current Transfer Ratio (Max)	150% @ 10mA
Output Type	Transistor
Voltage - Output (Max)	70V
Current - Output / Channel	50mA
Vce Saturation (Max)	400mV
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	6-SMD, Gull Wing
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MOC8106S is determined by the following critical parameters:

Isolation Voltage: 5300Vrms minimum required
Number of Channels: Single channel configuration
Output Type: Transistor output
Package / Case: 6-SMD, Gull Wing surface mount
Current Transfer Ratio: 50% to 150% @ 10mA
Maximum Output Voltage: 70V
Maximum Output Current: 50mA per channel
Vce Saturation: 400mV maximum

The MOC8106SM variant from onsemi operates at reduced isolation voltage (4170Vrms), making it suitable only for applications with lower isolation requirements. The MOC8106SMT&R from Isocom Components 2004 LTD maintains the 5300Vrms isolation specification and is packaged in Tape & Reel format, providing direct functional equivalence with different packaging.

Parameter Comparison

Parameter	MOC8106S	MOC8106SM	MOC8106SMT&R
Manufacturer	onsemi	onsemi	Isocom Components 2004 LTD
Product Status	Obsolete	Active	Active
Number of Channels	1	1	1
Voltage - Isolation	5300Vrms	4170Vrms	5300Vrms
Current Transfer Ratio (Min)	50% @ 10mA	50% @ 10mA	50% @ 10mA
Current Transfer Ratio (Max)	150% @ 10mA	150% @ 10mA	150% @ 10mA
Turn On / Turn Off Time (Typ)	2µs, 3µs	2µs, 3µs	7.5µs, 5.7µs
Output Type	Transistor	Transistor	Transistor
Voltage - Output (Max)	70V	70V	70V
Vce Saturation (Max)	400mV	400mV	400mV
Operating Temperature	-55°C ~ 100°C	-40°C ~ 100°C	-55°C ~ 100°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	6-SMD, Gull Wing	6-SMD, Gull Wing	6-SMD, Gull Wing
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MOC8106SMT&R (Isocom Components 2004 LTD) is the primary direct substitute for MOC8106S. Both components maintain 5300Vrms isolation voltage and identical electrical specifications for current transfer ratio, output voltage, and saturation characteristics. The MOC8106SMT&R is actively manufactured and ROHS3 compliant. The primary difference is packaging format: MOC8106SMT&R is supplied in Tape & Reel configuration versus the standard tube packaging of MOC8106S. Operating temperature range is identical (-55°C ~ 100°C), and turn-on/turn-off timing differs slightly but remains within acceptable switching performance parameters.

MOC8106SM (onsemi) is an active alternative with reduced isolation voltage (4170Vrms). This substitute is applicable only for applications where the lower isolation specification meets design requirements. MOC8106SM is ROHS3 compliant and offers superior inventory availability. Operating temperature minimum is -40°C, which may limit use in extended low-temperature environments. Turn-on/turn-off timing matches MOC8106S specifications.

Selection between MOC8106SMT&R and MOC8106SM depends on isolation voltage requirements: applications requiring 5300Vrms isolation must use MOC8106SMT&R; applications tolerating 4170Vrms isolation may use MOC8106SM.

Frequently Asked Questions (FAQ)

Q: Can MOC8106SM replace MOC8106S in all applications?

A: No. MOC8106SM operates at 4170Vrms isolation voltage compared to MOC8106S at 5300Vrms. Substitution is valid only for applications where the lower isolation voltage meets design specifications. Verify isolation voltage requirements before selection.

Q: What is the primary difference between MOC8106SMT&R and MOC8106S?

A: Both components provide identical electrical performance at 5300Vrms isolation voltage with matching current transfer ratios and output characteristics. The difference is packaging: MOC8106SMT&R is supplied in Tape & Reel format while MOC8106S uses tube packaging. Electrical compatibility is complete.

Q: Are all substitute parts ROHS3 compliant?

A: MOC8106SMT&R and MOC8106SM are both ROHS3 compliant. MOC8106S compliance status is not specified in available documentation.

Q: What are the temperature operating range differences?

A: MOC8106S and MOC8106SMT&R both operate from -55°C to 100°C. MOC8106SM operates from -40°C to 100°C, limiting its use in applications requiring extended low-temperature performance below -40°C.

Q: How do switching times compare between substitutes?

A: MOC8106S and MOC8106SM both feature 2µs turn-on and 3µs turn-off times. MOC8106SMT&R has longer switching times at 7.5µs turn-on and 5.7µs turn-off. Applications with strict timing requirements should account for this difference.

Q: Is the 6-SMD Gull Wing package identical across all parts?

A: Yes. All three components use identical 6-SMD Gull Wing surface mount packaging with MSL 1 (Unlimited) moisture sensitivity rating, ensuring mechanical and thermal compatibility in PCB assembly.

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