MOCD211VM Equivalent & Substitute Parts

Part Overview

The MOCD211VM 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 MOCD211VM operates with a 20% minimum current transfer ratio at 10mA input and delivers up to 150mA output current per channel. It is packaged in 8-SOIC surface mount configuration with an operating temperature range of -40°C to 100°C.

Key Parameters

Parameter	MOCD211VM
Manufacturer	onsemi
Number of Channels	2
Voltage - Isolation	2500Vrms
Current Transfer Ratio (Min)	20% @ 10mA
Turn On / Turn Off Time (Typ)	7.5µs, 5.7µs
Rise / Fall Time (Typ)	3.2µs, 4.7µs
Output Type	Transistor
Voltage - Output (Max)	30V
Current - Output / Channel	150mA
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
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MOCD211VM is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Number of Channels: 2
Output Type: Transistor
Mounting Type: Surface Mount
Package Type: 8-SOIC
Isolation Voltage: Equal to or greater than 2500Vrms
Vce Saturation (Max): 400mV or lower
Operating Temperature Range: Must encompass or exceed -40°C to 100°C

Performance Parameters:

Current Transfer Ratio (Min): 20% or higher
Turn On / Turn Off Time: 7.5µs / 5.7µs or faster
Rise / Fall Time: 3.2µs / 4.7µs or faster
Output Voltage (Max): 30V or higher
Output Current per Channel: 150mA or higher

Substitute parts are grouped into two categories:

Category 1: Broadcom ACPL-227 Series – Higher isolation voltage (3000Vrms), improved switching performance, active product status, RoHS3 compliant. These parts exceed MOCD211VM specifications in isolation voltage, current transfer ratio, and switching speed.

Category 2: Vishay ILD Series – Highest isolation voltage (4000Vrms), comparable switching characteristics, active product status, RoHS3 compliant. These parts provide maximum isolation margin and are suitable for demanding applications.

Parameter Comparison

Parameter	MOCD211VM	ACPL-227-500E	ACPL-227-50BE	ACPL-227-50CE	ACPL-227-560E	ACPL-227-56BE	ACPL-227-56CE	ILD1206T	ILD1207T	ILD205T	ILD206T
Manufacturer	onsemi	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Vishay	Vishay	Vishay	Vishay
Number of Channels	2	2	2	2	2	2	2	2	2	2	2
Voltage - Isolation	2500Vrms	3000Vrms	3000Vrms	3000Vrms	3000Vrms	3000Vrms	3000Vrms	4000Vrms	4000Vrms	4000Vrms	4000Vrms
Current Transfer Ratio (Min)	20% @ 10mA	50% @ 5mA	130% @ 5mA	200% @ 5mA	50% @ 5mA	130% @ 5mA	200% @ 5mA	63% @ 10mA	100% @ 10mA	40% @ 10mA	63% @ 10mA
Turn On / Turn Off Time (Typ)	7.5µs, 5.7µs	3µs, 3µs	3µs, 3µs	3µs, 3µs	3µs, 3µs	3µs, 3µs	3µs, 3µs	5µs, 4µs	5µs, 4µs	6µs, 5µs	6µs, 5µs
Rise / Fall Time (Typ)	3.2µs, 4.7µs	2µs, 3µs	2µs, 3µs	2µs, 3µs	2µs, 3µs	2µs, 3µs	2µs, 3µs	—	—	3µs, 4.7µs	3µs, 4.7µs
Output Type	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor
Voltage - Output (Max)	30V	80V	80V	80V	80V	80V	80V	70V	70V	70V	70V
Current - Output / Channel	150mA	50mA	50mA	50mA	50mA	50mA	50mA	—	—	—	—
Voltage - Forward (Vf) (Typ)	1.25V	1.2V	1.2V	1.2V	1.2V	1.2V	1.2V	1.2V	1.2V	1.2V	1.2V
Current - DC Forward (If) (Max)	60mA	50mA	50mA	50mA	50mA	50mA	50mA	30mA	30mA	30mA	30mA
Vce Saturation (Max)	400mV	400mV	400mV	400mV	400mV	400mV	400mV	400mV	400mV	400mV	400mV
Operating Temperature	-40°C ~ 100°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 100°C	-55°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All substitute parts listed are active products with RoHS3 compliance, providing long-term availability and regulatory alignment superior to the obsolete MOCD211VM.

Broadcom ACPL-227 Series Selection: The ACPL-227-500E, ACPL-227-50BE, ACPL-227-50CE, ACPL-227-560E, ACPL-227-56BE, and ACPL-227-56CE are suitable for applications requiring 3000Vrms isolation. These parts deliver faster switching performance (3µs turn-on/off versus 7.5µs/5.7µs) and higher current transfer ratios. The ACPL-227-50BE and ACPL-227-56BE variants offer 130% minimum current transfer ratio, while ACPL-227-50CE and ACPL-227-56CE provide 200% minimum. The ACPL-227-500E and ACPL-227-560E deliver 50% minimum current transfer ratio. Package width increases from 3.90mm to 4.40mm; PCB layout verification is required.

Vishay ILD Series Selection: The ILD1206T, ILD1207T, ILD205T, and ILD206T provide 4000Vrms isolation, the highest rating among substitutes. The ILD1207T offers 100% minimum current transfer ratio, ILD1206T and ILD206T provide 63% minimum, and ILD205T provides 40% minimum. These parts maintain the original 3.90mm package width. Output current per channel is not specified for Vishay parts; applications requiring 150mA output current must be evaluated against actual load requirements.

All substitute parts maintain 400mV maximum Vce saturation and MSL 1 rating. Operating temperature ranges exceed the original -40°C to 100°C specification.

Frequently Asked Questions (FAQ)

Q: Can ACPL-227 series parts be used as direct replacements for MOCD211VM?

A: ACPL-227 series parts are functionally compatible with MOCD211VM in 2-channel, transistor-output, surface-mount optoisolator applications. The 8-SOIC package width increases from 3.90mm to 4.40mm, requiring PCB layout verification. All electrical parameters meet or exceed MOCD211VM specifications. Active product status ensures long-term availability.

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

A: Both parts operate at 3000Vrms isolation with identical switching times (3µs turn-on/off). ACPL-227-50BE delivers 130% minimum current transfer ratio at 5mA input, while ACPL-227-50CE delivers 200% minimum at the same input current. Selection depends on input drive capability and output current requirements.

Q: Are Vishay ILD parts compatible with MOCD211VM applications?

A: Vishay ILD parts (ILD1206T, ILD1207T, ILD205T, ILD206T) are compatible in channel count, output type, and mounting configuration. They maintain the original 3.90mm package width. The 4000Vrms isolation rating exceeds MOCD211VM by 1500Vrms. Output current per channel is not specified for ILD parts; applications requiring 150mA output must be evaluated against actual circuit requirements.

Q: Why do ACPL-227 parts have higher current transfer ratios than MOCD211VM?

A: Current transfer ratio is a device characteristic determined by internal LED-to-photodiode coupling efficiency. ACPL-227 series parts are designed with higher coupling efficiency, resulting in 50% to 600% current transfer ratio ranges compared to MOCD211VM's 20% minimum. This provides improved noise margin and reduced input drive requirements.

Q: Can I use ILD205T if my application requires 40% minimum current transfer ratio?

A: ILD205T delivers 40% minimum current transfer ratio at 10mA input, meeting the MOCD211VM specification of 20% minimum. However, the lower transfer ratio compared to other ILD variants (ILD1206T at 63%, ILD1207T at 100%) may require higher input drive current. Circuit analysis is necessary to confirm adequate input signal levels.

Q: What is the impact of package width change from 3.90mm to 4.40mm?

A: ACPL-227 series parts use 4.40mm package width versus MOCD211VM's 3.90mm. This 0.5mm increase requires PCB layout verification to confirm adequate spacing from adjacent components and traces. Vishay ILD parts maintain the original 3.90mm width, eliminating layout concerns.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts are RoHS3 compliant. MOCD211VM compliance status is not specified. RoHS3 compliance ensures regulatory alignment for new designs and procurement.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message