MOCD211R1VM Equivalent & Substitute Parts

Part Overview

The MOCD211R1VM is a 2-channel optoisolator with transistor output manufactured by onsemi, rated for 2500Vrms isolation voltage. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates across a temperature range of -40°C to 100°C and is housed in an 8-SOIC surface mount package. Substitute parts must maintain functional compatibility across isolation voltage, channel count, output type, and package form factor.

Key Parameters

Parameter	MOCD211R1VM
Manufacturer	onsemi
Number of Channels	2
Voltage - Isolation	2500Vrms
Current Transfer Ratio (Min)	20% @ 10mA
Output Type	Transistor
Voltage - Output (Max)	30V
Current - Output / Channel	150mA
Turn On / Turn Off Time (Typ)	7.5µs, 5.7µs
Vce Saturation (Max)	400mV
Operating Temperature	-40°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the MOCD211R1VM is determined by the following critical parameters:

Primary Compatibility Criteria:

Number of Channels: 2 (required)
Output Type: Transistor (required)
Mounting Type: Surface Mount (required)
Package / Case: 8-SOIC form factor (required)
Voltage - Isolation: Minimum 2500Vrms (required)

Secondary Compatibility Criteria:

Current Transfer Ratio (Min): 20% or higher
Voltage - Output (Max): 30V or higher
Current - Output / Channel: 150mA or higher
Vce Saturation (Max): 400mV or lower
Operating Temperature Range: Must encompass -40°C to 100°C or provide equivalent coverage

Substitute parts are grouped into two categories: parametric equivalents (identical specifications) and similar parts (higher performance ratings that maintain backward compatibility).

Parameter Comparison

Part Number	Manufacturer	Channels	Isolation (Vrms)	CTR Min	Vout Max (V)	Iout/Ch (mA)	Ton/Toff (µs)	Vce Sat (mV)	Temp Range (°C)	Package	Status
MOCD211R1VM	onsemi	2	2500	20% @ 10mA	30	150	7.5, 5.7	400	-40 ~ 100	8-SOIC (3.90mm)	Obsolete
MOCD211R2M	onsemi	2	2500	20% @ 10mA	30	150	7.5, 5.7	400	-40 ~ 100	8-SOIC (3.90mm)	Active
ACPL-227-500E	Broadcom Limited	2	3000	50% @ 5mA	80	50	3, 3	400	-55 ~ 110	8-SOIC (4.40mm)	Active
ACPL-227-50BE	Broadcom Limited	2	3000	130% @ 5mA	80	50	3, 3	400	-55 ~ 110	8-SOIC (4.40mm)	Active
ACPL-227-50CE	Broadcom Limited	2	3000	200% @ 5mA	80	50	3, 3	400	-55 ~ 110	8-SOIC (4.40mm)	Active
ACPL-227-560E	Broadcom Limited	2	3000	50% @ 5mA	80	50	3, 3	400	-55 ~ 110	8-SOIC (4.40mm)	Active
ACPL-227-56BE	Broadcom Limited	2	3000	130% @ 5mA	80	50	3, 3	400	-55 ~ 110	8-SOIC (4.40mm)	Active
ACPL-227-56CE	Broadcom Limited	2	3000	200% @ 5mA	80	50	3, 3	400	-55 ~ 110	8-SOIC (4.40mm)	Active
ILD1206T	Vishay Semiconductor Opto Division	2	4000	63% @ 10mA	70	—	5, 4	400	-55 ~ 110	8-SOIC (3.90mm)	Active
ILD1207T	Vishay Semiconductor Opto Division	2	4000	100% @ 10mA	70	—	5, 4	400	-55 ~ 110	8-SOIC (3.90mm)	Active
ILD205T	Vishay Semiconductor Opto Division	2	4000	40% @ 10mA	70	—	6, 5	400	-55 ~ 100	8-SOIC (3.90mm)	Active

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement):

MOCD211R2M is the direct parametric equivalent to MOCD211R1VM. Both parts share identical electrical specifications and package dimensions. MOCD211R2M is currently in active production status, making it the primary choice for replacing obsolete MOCD211R1VM units. The only difference is packaging format (Tape & Reel vs. bulk), which does not affect functional performance.

Higher Performance Substitutes (Broadcom ACPL-227 Series):

The ACPL-227 series (ACPL-227-500E, ACPL-227-50BE, ACPL-227-50CE, ACPL-227-560E, ACPL-227-56BE, ACPL-227-56CE) offers enhanced isolation voltage (3000Vrms vs. 2500Vrms) and improved switching performance. These parts maintain 2-channel transistor output configuration and 8-SOIC package form factor. However, package width increases from 3.90mm to 4.40mm, requiring PCB layout verification. Output current per channel is reduced to 50mA (vs. 150mA), which may limit applications requiring higher output drive capability. All ACPL-227 variants are RoHS3 compliant and active in production.

Higher Performance Substitutes (Vishay ILD Series):

The ILD1206T, ILD1207T, and ILD205T provide 4000Vrms isolation voltage with 2-channel transistor output in 8-SOIC (3.90mm) package, maintaining original package dimensions. Current Transfer Ratio specifications vary across variants (40% to 100% @ 10mA). Output current per channel is not specified in provided data. All ILD variants are RoHS3 compliant and active in production. Operating temperature range extends to -55°C, providing broader environmental coverage than the original part.

Frequently Asked Questions (FAQ)

Q: Can MOCD211R2M be used as a direct replacement for MOCD211R1VM?

A: Yes. MOCD211R2M is a parametric equivalent with identical electrical and functional specifications. The only difference is packaging format (Tape & Reel). No circuit modifications are required.

Q: What are the key differences between MOCD211R1VM and ACPL-227 series substitutes?

A: ACPL-227 parts provide higher isolation voltage (3000Vrms vs. 2500Vrms) and faster switching times (3µs vs. 7.5µs turn-on). However, output current per channel is reduced to 50mA (vs. 150mA), and package width increases from 3.90mm to 4.40mm. Applications requiring 150mA output current cannot use ACPL-227 substitutes.

Q: Are Vishay ILD parts compatible with MOCD211R1VM?

A: ILD1206T, ILD1207T, and ILD205T maintain the same 8-SOIC (3.90mm) package dimensions and 2-channel transistor output configuration. They provide higher isolation voltage (4000Vrms) and extended temperature range (-55°C to 110°C). However, output current per channel is not specified in available data, and Current Transfer Ratio specifications differ. Circuit-level testing is necessary to confirm functional compatibility in specific applications.

Q: What is the impact of package width differences between 3.90mm and 4.40mm?

A: Package width affects PCB layout spacing and component density. Designs using 3.90mm packages (MOCD211R1VM, MOCD211R2M, ILD series) cannot be directly substituted with 4.40mm packages (ACPL-227 series) without PCB redesign. Verify available board space before selecting ACPL-227 alternatives.

Q: Which substitute parts are RoHS3 compliant?

A: MOCD211R2M, all ACPL-227 variants, and all ILD variants are RoHS3 compliant. MOCD211R1VM compliance status is not specified in provided data.

Q: What is the difference between ACPL-227-500E and ACPL-227-50BE?

A: Both parts share identical isolation voltage (3000Vrms), package dimensions (8-SOIC, 4.40mm), and output specifications. The primary difference is Current Transfer Ratio: ACPL-227-500E specifies 50% minimum (50-600% range), while ACPL-227-50BE specifies 130% minimum (130-260% range). ACPL-227-50BE provides tighter CTR tolerance and higher minimum gain.

Q: Can output current limitations of ACPL-227 parts affect circuit performance?

A: Yes. ACPL-227 series limits output current to 50mA per channel, compared to 150mA for MOCD211R1VM. Applications requiring higher output drive current must use MOCD211R2M or verify that 50mA is sufficient for the load impedance and switching frequency in the target circuit.

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