MOCD217R1VM Equivalent & Substitute Parts

Part Overview

The MOCD217R1VM 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	MOCD217R1VM
Manufacturer	onsemi
Product Status	Obsolete
Number of Channels	2
Voltage - Isolation	2500Vrms
Output Type	Transistor
Current Transfer Ratio (Min)	100% @ 1mA
Voltage - Output (Max)	30V
Current - Output / Channel	150mA
Turn On / Turn Off Time (Typ)	7.5µs, 5.7µs
Operating Temperature	-40°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MOCD217R1VM is determined by the following critical parameters:

Primary Compatibility Criteria:

Number of Channels: 2 (required match)
Output Type: Transistor (required match)
Isolation Voltage: Minimum 2500Vrms (equal or higher acceptable)
Package / Case: 8-SOIC form factor (physical compatibility)
Mounting Type: Surface Mount (required match)

Secondary Compatibility Criteria:

Current - Output / Channel: Minimum 150mA (equal or higher acceptable)
Voltage - Output (Max): Minimum 30V (equal or higher acceptable)
Operating Temperature Range: Must encompass or exceed -40°C ~ 100°C

Substitute parts are grouped into two categories:

Category 1: Direct onsemi Equivalents – Parts from the same manufacturer with identical or superior electrical specifications and active product status.

Category 2: Cross-Manufacturer Alternatives – Parts from Broadcom Limited and Vishay Semiconductor Opto Division that meet or exceed isolation voltage and output specifications while maintaining package compatibility.

Parameter Comparison

Part Number	Manufacturer	Status	Channels	Isolation (Vrms)	Output Type	CTR Min	Vout Max (V)	Iout/Ch (mA)	Package	Temp Range (°C)
MOCD217R1VM	onsemi	Obsolete	2	2500	Transistor	100% @ 1mA	30	150	8-SOIC (3.90mm)	-40 ~ 100
MOCD217R2VM	onsemi	Active	2	2500	Transistor	100% @ 1mA	30	150	8-SOIC (3.90mm)	-40 ~ 100
MOCD217R2M	onsemi	Active	2	2500	Transistor	100% @ 1mA	30	150	8-SOIC (3.90mm)	-40 ~ 100
ACPL-227-500E	Broadcom Limited	Active	2	3000	Transistor	50% @ 5mA	80	50	8-SOIC (4.40mm)	-55 ~ 110
ACPL-227-50BE	Broadcom Limited	Active	2	3000	Transistor	130% @ 5mA	80	50	8-SOIC (4.40mm)	-55 ~ 110
ACPL-227-50CE	Broadcom Limited	Active	2	3000	Transistor	200% @ 5mA	80	50	8-SOIC (4.40mm)	-55 ~ 110
ACPL-227-560E	Broadcom Limited	Active	2	3000	Transistor	50% @ 5mA	80	50	8-SOIC (4.40mm)	-55 ~ 110
ACPL-227-56BE	Broadcom Limited	Active	2	3000	Transistor	130% @ 5mA	80	50	8-SOIC (4.40mm)	-55 ~ 110
ACPL-227-56CE	Broadcom Limited	Active	2	3000	Transistor	200% @ 5mA	80	50	8-SOIC (4.40mm)	-55 ~ 110
ILD1206T	Vishay Semiconductor Opto Division	Active	2	4000	Transistor	63% @ 10mA	70	—	8-SOIC (3.90mm)	-55 ~ 110
ILD1207T	Vishay Semiconductor Opto Division	Active	2	4000	Transistor	100% @ 10mA	70	—	8-SOIC (3.90mm)	-55 ~ 110

Engineering Selection Recommendations

Tier 1 – Direct Replacement (Recommended for Obsolescence Mitigation):

MOCD217R2VM and MOCD217R2M are the primary substitutes for MOCD217R1VM. Both parts are manufactured by onsemi, maintain identical electrical specifications, and are classified as active products. MOCD217R2VM is available in Tape & Reel packaging, while MOCD217R2M is supplied in Cut Tape & Digi-Reel format. Both are RoHS3 compliant and carry REACH Unaffected status. These parts provide seamless functional and mechanical compatibility with no circuit redesign required.

Tier 2 – Higher Isolation Voltage Alternatives (Broadcom ACPL-227 Series):

The Broadcom ACPL-227 family (ACPL-227-500E, ACPL-227-50BE, ACPL-227-50CE, ACPL-227-560E, ACPL-227-56BE, ACPL-227-56CE) offers 3000Vrms isolation, exceeding the MOCD217R1VM specification of 2500Vrms. These parts maintain 2-channel transistor output configuration and 8-SOIC package form factor. However, output current per channel is reduced to 50mA compared to 150mA in the original part. Operating temperature range extends to -55°C ~ 110°C. All variants are RoHS3 compliant and REACH Unaffected. Selection among ACPL-227 variants depends on required Current Transfer Ratio: ACPL-227-500E and ACPL-227-560E provide 50–600% CTR range, ACPL-227-50BE and ACPL-227-56BE provide 130–260% CTR range, and ACPL-227-50CE and ACPL-227-56CE provide 200–400% CTR range.

Tier 3 – Highest Isolation Voltage Alternatives (Vishay ILD Series):

The Vishay ILD1206T and ILD1207T offer 4000Vrms isolation with 2-channel transistor output in 8-SOIC package. ILD1206T provides 63–125% CTR at 10mA, while ILD1207T provides 100–200% CTR at 10mA. Both extend operating temperature to -55°C ~ 110°C and are RoHS3 compliant. Output current specifications are not provided in available data. These parts are suitable for applications requiring maximum isolation margin.

All substitute parts listed are active products with established supply chains and full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can MOCD217R2VM directly replace MOCD217R1VM without circuit modification?

A: Yes. MOCD217R2VM is electrically and mechanically identical to MOCD217R1VM. Both parts share the same isolation voltage (2500Vrms), channel count (2), output current rating (150mA per channel), and 8-SOIC package dimensions. The primary difference is product status: MOCD217R1VM is obsolete while MOCD217R2VM is active. Packaging format differs (Tape & Reel vs. bulk), but electrical performance is equivalent.

Q: What is the difference between MOCD217R2VM and MOCD217R2M?

A: Both parts are electrically identical with 2500Vrms isolation, 2 channels, and 150mA output current. The difference is packaging: MOCD217R2VM is supplied in Tape & Reel format, while MOCD217R2M is supplied in Cut Tape & Digi-Reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Can I use ACPL-227 series parts as substitutes if my circuit requires 150mA output current?

A: No. ACPL-227 series parts are rated for 50mA output current per channel, which is insufficient for applications requiring 150mA. While ACPL-227 parts offer higher isolation voltage (3000Vrms), the reduced output current makes them unsuitable for this specification. Use MOCD217R2VM or MOCD217R2M instead.

Q: Are Broadcom ACPL-227 parts compatible with the 8-SOIC package footprint of MOCD217R1VM?

A: ACPL-227 parts use 8-SOIC packaging but with a larger width of 4.40mm compared to 3.90mm for MOCD217R1VM. While both are 8-SOIC form factors, the physical dimensions differ. PCB footprint compatibility must be verified before substitution. Consult package drawings to confirm fit within existing board layouts.

Q: What is the advantage of using Vishay ILD1206T or ILD1207T over onsemi MOCD217R2M?

A: Vishay ILD series parts provide 4000Vrms isolation compared to 2500Vrms in MOCD217R2M, offering higher isolation margin for demanding applications. However, output current specifications are not provided for ILD parts, and they operate at different Current Transfer Ratio specifications. Use ILD series only when maximum isolation voltage is a design requirement.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (MOCD217R2VM, MOCD217R2M, ACPL-227 series, and Vishay ILD series) are RoHS3 compliant and carry REACH Unaffected status, meeting current environmental and regulatory requirements.

Q: What is the Current Transfer Ratio (CTR) and why does it vary among substitutes?

A: Current Transfer Ratio is the ratio of output current to input current, expressed as a percentage. It determines the efficiency of signal transfer across the isolation barrier. MOCD217R1VM specifies 100% CTR at 1mA input. ACPL-227 variants specify CTR at 5mA input with ranges from 50–600% depending on part number. Vishay ILD parts specify CTR at 10mA input. Higher CTR values indicate greater output current for a given input current. Select parts based on your circuit's input current and required output current levels.

Q: Can I substitute MOCD217R1VM with a higher isolation voltage part in a 2500Vrms application?

A: Yes. Parts rated for higher isolation voltage (3000Vrms or 4000Vrms) are backward compatible with 2500Vrms applications. However, verify that all other electrical parameters (output current, voltage rating, CTR, timing) meet your circuit requirements. Higher isolation voltage does not automatically ensure compatibility across all specifications.

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