MOC215M Equivalent & Substitute Parts

Part Overview

The MOC215M is an optoisolator transistor with base output manufactured by onsemi, rated for 2500Vrms isolation voltage in an 8-SOIC surface mount package. This component provides galvanic isolation for single-channel DC input applications with transistor output capability. The MOC215M is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute optoisolators must maintain compatibility across isolation voltage, package form factor, and output characteristics to ensure direct replacement capability.

Substiute Parts

MOC215M

onsemiIn Stock: 8956MOC215M Datasheet

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MOC216M

Fairchild SemiconductorIn Stock: 13323MOC216M Datasheet

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IL215AT

Vishay Semiconductor Opto DivisionIn Stock: 1679IL215AT Datasheet

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IL216AT

Vishay Semiconductor Opto DivisionIn Stock: 1472IL216AT Datasheet

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VO215AT

Vishay Semiconductor Opto DivisionIn Stock: 3453VO215AT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MOC215M optoisolator is determined by the following critical parameters:

Primary Compatibility Criteria:

• Package / Case: 8-SOIC form factor (0.154", 3.90mm Width) — ensures mechanical and electrical PCB compatibility
• Output Type: Transistor with Base — maintains circuit interface compatibility
• Voltage - Output (Max): 30V minimum — ensures load voltage compatibility
• Vce Saturation (Max): 400mV — preserves switching performance characteristics

Secondary Compatibility Criteria:

• Voltage - Isolation: Minimum 2500Vrms — meets or exceeds isolation requirement
• Current Transfer Ratio (Min): 20% @ 1mA or higher — ensures adequate optical coupling efficiency
• Operating Temperature: -40°C ~ 100°C or wider range — maintains thermal operating envelope
• Input Type: DC — matches signal type requirement

Substitute parts are grouped into two categories based on isolation voltage capability: parts maintaining 2500Vrms isolation (direct equivalents) and parts exceeding 2500Vrms isolation (enhanced isolation alternatives).

Parameter Comparison

Engineering Selection Recommendations

MOC216M (Fairchild Semiconductor) — Active product status. Maintains 2500Vrms isolation voltage matching the MOC215M specification. Current Transfer Ratio of 50% @ 1mA exceeds the MOC215M minimum of 20%, providing enhanced optical coupling margin. Identical package, output voltage, and saturation characteristics. Suitable for direct replacement in applications where the MOC215M is no longer available.

IL215AT (Vishay Semiconductor Opto Division) — Active product status with RoHS3 compliance. Provides 4000Vrms isolation voltage, exceeding the MOC215M requirement by 60%. Current Transfer Ratio of 20% @ 1mA matches the MOC215M minimum. Extended operating temperature range of -55°C ~ 100°C provides wider thermal coverage. Output current specification not provided; verify application requirements before selection. Suitable for designs requiring enhanced isolation margin.

IL216AT (Vishay Semiconductor Opto Division) — Active product status with RoHS3 compliance. Provides 4000Vrms isolation voltage with Current Transfer Ratio of 50% @ 1mA. Extended operating temperature range of -55°C ~ 100°C. Output current specification not provided. Suitable for applications requiring both enhanced isolation and improved optical coupling efficiency.

VO215AT (Vishay Semiconductor Opto Division) — Active product status with RoHS3 compliance. Provides 4000Vrms isolation voltage with Current Transfer Ratio range of 20% to 50% @ 1mA. Output current limited to 50mA, which is lower than the MOC215M specification of 150mA. Suitable only for applications with output current requirements not exceeding 50mA. Enhanced isolation voltage available with compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can MOC216M directly replace MOC215M in existing designs?

A: Yes. MOC216M maintains identical isolation voltage (2500Vrms), package form factor (8-SOIC), output type (transistor with base), maximum output voltage (30V), and saturation characteristics (400mV). The higher Current Transfer Ratio (50% vs. 20%) provides improved optical coupling performance. No circuit modifications are required.

Q: What is the primary difference between 2500Vrms and 4000Vrms isolation options?

A: Isolation voltage rating determines the maximum voltage differential that can be safely applied across the optoisolator without breakdown. The MOC215M specifies 2500Vrms. Substitute parts rated for 4000Vrms (IL215AT, IL216AT, VO215AT) provide 60% higher isolation margin. Selection depends on application isolation requirements; higher ratings do not improve performance in circuits designed for 2500Vrms isolation.

Q: Why does VO215AT have a lower output current rating (50mA vs. 150mA)?

A: Output current capability is a distinct electrical characteristic determined by the transistor output stage design. VO215AT is specified for maximum 50mA output current, while MOC215M and MOC216M support 150mA. Applications requiring output currents exceeding 50mA must use MOC216M or verify VO215AT suitability through detailed circuit analysis.

Q: Are all substitute parts available in the same packaging options as MOC215M?

A: All substitute parts are available in 8-SOIC surface mount package matching the MOC215M form factor. Packaging variants (Bulk, Tape & Reel, Cut Tape) differ by supplier but do not affect electrical or mechanical compatibility. Verify packaging availability with component suppliers for procurement requirements.

Q: Which substitute part offers the best compliance certifications?

A: IL215AT, IL216AT, and VO215AT all carry RoHS3 compliance certification. MOC216M compliance status is not specified in available data. For applications requiring RoHS compliance, Vishay Semiconductor Opto Division parts (IL215AT, IL216AT, VO215AT) are confirmed compliant.

Q: Can IL215AT or IL216AT be used in applications where output current specification is critical?

A: IL215AT and IL216AT do not provide output current specifications in available data. Applications with defined output current requirements should prioritize MOC216M (150mA) or VO215AT (50mA) where specifications are explicitly stated. Contact manufacturers for IL215AT and IL216AT output current ratings if required for design validation.