MOC211R1M Equivalent & Substitute Parts

Part Overview

The MOC211R1M 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 MOC211R1M is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Isolation Voltage	2500Vrms
Number of Channels	1
Output Type	Transistor with Base
Current Transfer Ratio (Min)	20% @ 10mA
Voltage - Output (Max)	30V
Current - Output / Channel	150mA
Vce Saturation (Max)	400mV
Operating Temperature Range	-40°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitute parts for the MOC211R1M are classified into two categories based on electrical and mechanical compatibility:

Direct Parametric Equivalents maintain all critical electrical specifications: 2500Vrms isolation voltage, 1 channel, transistor with base output, 20% minimum current transfer ratio at 10mA, 30V maximum output voltage, 150mA output current, 400mV maximum Vce saturation, and identical 8-SOIC package. These parts are functionally interchangeable in circuit designs without modification.

Similar Parts share the same package and output topology but differ in isolation voltage rating (4000Vrms) and current transfer ratio specifications. These parts are suitable for applications where higher isolation voltage provides additional design margin, though they are not direct pin-for-pin replacements in terms of electrical performance envelope.

The key parameters determining substitution eligibility are: isolation voltage rating, current transfer ratio specification, output voltage and current ratings, saturation voltage, package type, and operating temperature range.

Parameter Comparison

Parameter	MOC211R1M	MOC211M	MOC211R2M	MOC211R2VM	IL215AT	IL216AT
Manufacturer	onsemi	Fairchild Semiconductor	onsemi	Fairchild Semiconductor	Vishay Semiconductor Opto Division	Vishay Semiconductor Opto Division
Product Status	Obsolete	Active	Active	Active	Active	Active
Isolation Voltage	2500Vrms	2500Vrms	2500Vrms	2500Vrms	4000Vrms	4000Vrms
Number of Channels	1	1	1	1	1	1
Current Transfer Ratio (Min)	20% @ 10mA	20% @ 10mA	20% @ 10mA	20% @ 10mA	20% @ 1mA	50% @ 1mA
Voltage - Output (Max)	30V	30V	30V	30V	30V	30V
Current - Output / Channel	150mA	150mA	150mA	150mA	—	—
Vce Saturation (Max)	400mV	400mV	400mV	400mV	400mV	400mV
Operating Temperature	-40°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	—	—	ROHS3 Compliant	Not applicable	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Active Product Status Required):

MOC211M, MOC211R2M, and MOC211R2VM are direct parametric equivalents with identical electrical specifications and 8-SOIC packaging. MOC211R2M is recommended as the primary replacement due to active product status and ROHS3 compliance. MOC211M offers equivalent performance with bulk packaging availability. MOC211R2VM maintains compatibility but carries "Not applicable" RoHS status.

For Applications Requiring Higher Isolation Voltage:

IL215AT and IL216AT provide 4000Vrms isolation voltage with the same 8-SOIC package and transistor output topology. Both are active products with ROHS3 compliance. IL216AT specifies 50% minimum current transfer ratio at 1mA, compared to 20% at 10mA for the MOC211R1M, providing enhanced performance margin. These parts are suitable for designs where increased isolation voltage provides additional safety or regulatory margin.

Compliance Considerations:

MOC211R2M and IL215AT/IL216AT carry ROHS3 compliance certification. For applications subject to RoHS requirements, these parts are preferred over MOC211M and MOC211R2VM. All substitute parts maintain EAR99 export classification and identical HTSUS coding with the original MOC211R1M.

Frequently Asked Questions (FAQ)

Q: Can MOC211M be used as a direct replacement for MOC211R1M?

A: Yes. MOC211M shares identical electrical specifications (2500Vrms isolation, 20% CTR @ 10mA, 30V output, 150mA output current, 400mV Vce saturation) and 8-SOIC package. The primary difference is packaging format (bulk vs. tape & reel) and manufacturer (Fairchild Semiconductor vs. onsemi). Electrical performance is equivalent.

Q: What is the difference between MOC211R2M and MOC211R2VM?

A: Both parts are parametric equivalents with identical electrical specifications and 8-SOIC packaging. MOC211R2M is manufactured by onsemi with ROHS3 compliance and tape & reel packaging. MOC211R2VM is manufactured by Fairchild Semiconductor with bulk packaging and "Not applicable" RoHS status. Select based on packaging requirements and compliance needs.

Q: When should IL215AT or IL216AT be used instead of MOC211 variants?

A: IL215AT and IL216AT provide 4000Vrms isolation voltage compared to 2500Vrms for MOC211 parts. Use these higher-voltage alternatives when circuit design requires increased isolation margin or when application standards mandate higher isolation ratings. Both maintain the same 8-SOIC package and transistor output configuration.

Q: Are IL215AT and IL216AT interchangeable with each other?

A: Both parts share 4000Vrms isolation voltage and 8-SOIC packaging. IL216AT specifies 50% minimum current transfer ratio at 1mA, while IL215AT specifies 20% at 1mA. IL216AT provides superior current transfer performance. Selection depends on circuit current requirements and design specifications.

Q: What packaging options are available for these substitute parts?

A: All substitute parts use 8-SOIC (0.154", 3.90mm width) surface mount packages. Packaging format varies: MOC211M is available in bulk, MOC211R2M in tape & reel, MOC211R2VM in bulk, IL215AT in tape & reel, and IL216AT in cut tape & Digi-Reel. Verify packaging compatibility with assembly equipment before procurement.

Q: Are there temperature range differences between substitute parts?

A: MOC211 variants operate from -40°C to 100°C. IL215AT and IL216AT extend the lower temperature limit to -55°C, providing wider operating range. For applications requiring operation below -40°C, IL215AT or IL216AT are required.

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