MOCD217R2VM Equivalent & Substitute Parts

Part Overview

The MOCD217R2VM is an optoisolator transistor output device manufactured by onsemi, featuring 2500Vrms isolation voltage and 2 channels in an 8-SOIC surface mount package. This component is active and in production status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design flexibility, or application-specific parameter optimization within the optoisolator transistor output category.

Key Parameters

Parameter	Value
Manufacturer Part Number	MOCD217R2VM
Manufacturer	onsemi
Category	Optoisolators
Number of Channels	2
Voltage - Isolation	2500Vrms
Output Type	Transistor
Voltage - Output (Max)	30V
Current - Output / Channel	150mA
Current Transfer Ratio (Min)	100% @ 1mA
Vce Saturation (Max)	400mV
Operating Temperature	-40°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the MOCD217R2VM are grouped based on the following allowable parameter ranges:

Primary Substitution Criteria:

Number of Channels: 2 (fixed requirement)
Output Type: Transistor (fixed requirement)
Mounting Type: Surface Mount (fixed requirement)
Package / Case: 8-SOIC form factor (0.154" width preferred, 0.173" width acceptable)
Voltage - Isolation: Minimum 2500Vrms (higher isolation ratings acceptable)
Vce Saturation (Max): 400mV or lower
RoHS Status: ROHS3 Compliant (required)

Secondary Optimization Parameters:

Current - Output / Channel: 50mA or higher acceptable
Operating Temperature Range: -40°C minimum, 100°C maximum (extended ranges acceptable)
Turn On / Turn Off Time: Lower values preferred for faster switching
Current Transfer Ratio: Varies by grade; higher ratios indicate better efficiency

Substitute parts meeting these criteria are organized by isolation voltage rating and current transfer ratio grade to facilitate selection based on application requirements.

Parameter Comparison

Part Number	Manufacturer	Isolation Voltage	Channels	Output Type	Max Output Voltage	Max Output Current/Ch	CTR Min	Vce Sat (Max)	Temp Range	Package
MOCD217R2VM	onsemi	2500Vrms	2	Transistor	30V	150mA	100% @ 1mA	400mV	-40°C ~ 100°C	8-SOIC (3.90mm)
ACPL-227-500E	Broadcom Limited	3000Vrms	2	Transistor	80V	50mA	50% @ 5mA	400mV	-55°C ~ 110°C	8-SOIC (4.40mm)
ACPL-227-50BE	Broadcom Limited	3000Vrms	2	Transistor	80V	50mA	130% @ 5mA	400mV	-55°C ~ 110°C	8-SOIC (4.40mm)
ACPL-227-50CE	Broadcom Limited	3000Vrms	2	Transistor	80V	50mA	200% @ 5mA	400mV	-55°C ~ 110°C	8-SOIC (4.40mm)
ACPL-227-560E	Broadcom Limited	3000Vrms	2	Transistor	80V	50mA	50% @ 5mA	400mV	-55°C ~ 110°C	8-SOIC (4.40mm)
ACPL-227-56BE	Broadcom Limited	3000Vrms	2	Transistor	80V	50mA	130% @ 5mA	400mV	-55°C ~ 110°C	8-SOIC (4.40mm)
ILD1206T	Vishay Semiconductor Opto Division	4000Vrms	2	Transistor	70V	—	63% @ 10mA	400mV	-55°C ~ 110°C	8-SOIC (3.90mm)
ILD1207T	Vishay Semiconductor Opto Division	4000Vrms	2	Transistor	70V	—	100% @ 10mA	400mV	-55°C ~ 110°C	8-SOIC (3.90mm)
ILD205T	Vishay Semiconductor Opto Division	4000Vrms	2	Transistor	70V	—	40% @ 10mA	400mV	-55°C ~ 100°C	8-SOIC (3.90mm)
ILD206T	Vishay Semiconductor Opto Division	4000Vrms	2	Transistor	70V	—	63% @ 10mA	400mV	-55°C ~ 100°C	8-SOIC (3.90mm)
ILD211T	Vishay Semiconductor Opto Division	4000Vrms	2	Transistor	70V	—	20% @ 10mA	400mV	-55°C ~ 100°C	8-SOIC (3.90mm)

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and active product status, ensuring regulatory alignment and supply continuity. Selection among substitutes depends on application-specific requirements:

Broadcom ACPL-227 Series (3000Vrms): These parts provide higher isolation voltage than the MOCD217R2VM with extended operating temperature range (-55°C to 110°C). The ACPL-227-50CE and ACPL-227-50BE variants offer higher current transfer ratios (200% and 130% respectively at 5mA), improving input-to-output efficiency. However, maximum output current per channel is reduced to 50mA compared to the MOCD217R2VM's 150mA, and package width increases to 4.40mm. These parts are suitable for applications requiring higher isolation margins and wider temperature operation.

Vishay ILD Series (4000Vrms): The ILD1206T, ILD1207T, ILD205T, ILD206T, and ILD211T provide the highest isolation voltage rating at 4000Vrms. The ILD1207T offers 100% current transfer ratio at 10mA, matching the MOCD217R2VM's efficiency profile. All Vishay parts maintain the preferred 3.90mm package width. The ILD series supports extended temperature operation (-55°C to 110°C for ILD1206T and ILD1207T; -55°C to 100°C for ILD205T, ILD206T, and ILD211T). Output current specifications are not provided for Vishay parts. These parts are suitable for applications requiring maximum isolation voltage and compact PCB footprint.

Frequently Asked Questions (FAQ)

Q: Can ACPL-227 series parts directly replace the MOCD217R2VM?

A: ACPL-227 parts are electrically compatible as 2-channel transistor output optoisolators with matching Vce saturation and RoHS3 compliance. However, the 4.40mm package width differs from the MOCD217R2VM's 3.90mm width, requiring PCB layout verification. Maximum output current per channel is 50mA versus 150mA on the MOCD217R2VM, which must be evaluated against application load requirements.

Q: What is the advantage of higher isolation voltage ratings?

A: Higher isolation voltage ratings (3000Vrms or 4000Vrms) provide greater safety margins in applications with high voltage differentials between input and output circuits. They do not affect compatibility with lower-voltage applications but offer enhanced reliability in demanding isolation environments.

Q: Are Vishay ILD parts pin-compatible with the MOCD217R2VM?

A: All listed parts use the 8-SOIC package format with identical pin configurations for 2-channel transistor output optoisolators. Pin compatibility is maintained across all substitutes. The ILD series maintains the preferred 3.90mm package width, simplifying PCB integration.

Q: How do current transfer ratio grades affect substitution?

A: Current transfer ratio (CTR) indicates the efficiency of signal transfer from input to output. Higher CTR values (e.g., ACPL-227-50CE at 200% @ 5mA) require lower input current to achieve the same output response. Lower CTR values (e.g., ILD211T at 20% @ 10mA) require higher input drive current. Selection depends on input circuit capability and desired output switching characteristics.

Q: What packaging options are available?

A: The MOCD217R2VM is supplied in Tape & Reel (TR) format. Broadcom ACPL-227 parts are available in Cut Tape (CT) & Digi-Reel® or Tape & Reel (TR) formats. Vishay ILD parts are available in Cut Tape (CT) & Digi-Reel® or Tape & Reel (TR) formats. Packaging selection does not affect electrical performance and is determined by assembly process requirements.

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