ACPL-217-50DE Equivalent & Substitute Parts

Part Overview

The ACPL-217-50DE is an optoisolator with transistor output manufactured by Broadcom Limited. This component provides 3750Vrms isolation with a single channel configuration in a 4-SOIC surface mount package. The device is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the critical isolation voltage, current transfer ratio, output specifications, and package dimensions. Alternative sources ensure supply continuity and design flexibility for applications requiring this isolation topology.

Key Parameters

Parameter	Value	Unit
Voltage - Isolation	3750	Vrms
Number of Channels	1	—
Current Transfer Ratio (Min)	300	% @ 5mA
Current Transfer Ratio (Max)	600	% @ 5mA
Voltage - Output (Max)	80	V
Current - Output / Channel	50	mA
Vce Saturation (Max)	400	mV
Operating Temperature Range	-55 to 110	°C
Package / Case	4-SOIC (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitute parts for the ACPL-217-50DE are qualified based on the following critical parameters that determine functional and mechanical interchangeability:

Electrical Equivalence Criteria:

Isolation voltage: 3750Vrms (exact match required)
Number of channels: 1 (single channel configuration)
Current transfer ratio range: 300% to 600% @ 5mA input
Maximum output voltage: 80V
Maximum output current per channel: 50mA
Vce saturation: 400mV maximum
Input type: DC
Output type: Transistor

Mechanical Compatibility Criteria:

Package type: 4-SOIC with 0.173" (4.40mm) width
Mounting type: Surface Mount
Pin configuration: 4-pin

Compliance & Status Criteria:

Product status: Active
RoHS3 compliance required
MSL rating: 1 (Unlimited)

The substitute parts FODM217DR2 and FODM217DR2V from onsemi meet all electrical and mechanical requirements while maintaining identical isolation performance and output specifications.

Parameter Comparison

Parameter	ACPL-217-50DE (Broadcom)	FODM217DR2 (onsemi)	FODM217DR2V (onsemi)
Manufacturer	Broadcom Limited	onsemi	onsemi
Voltage - Isolation	3750Vrms	3750Vrms	3750Vrms
Number of Channels	1	1	1
Current Transfer Ratio (Min)	300% @ 5mA	300% @ 5mA	300% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA	600% @ 5mA	600% @ 5mA
Turn On / Turn Off Time (Typ)	3µs, 3µs	3µs, 3µs	3µs, 3µs
Rise / Fall Time (Typ)	2µs, 3µs	2µs, 3µs	3µs, 3µs
Voltage - Output (Max)	80V	80V	80V
Current - Output / Channel	50mA	50mA	50mA
Voltage - Forward (Vf) (Typ)	1.2V	1.2V	1.2V
Current - DC Forward (If) (Max)	50mA	50mA	50mA
Vce Saturation (Max)	400mV	400mV	400mV
Operating Temperature	-55°C ~ 110°C	-55°C ~ 110°C	-55°C ~ 110°C
Package / Case	4-SOIC (0.173", 4.40mm Width)	4-SOIC (0.173", 4.40mm Width)	4-SOIC (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three parts—ACPL-217-50DE, FODM217DR2, and FODM217DR2V—are active production components with identical electrical specifications and mechanical compatibility. Selection between these parts is based on availability, supply chain requirements, and manufacturer preference.

Both onsemi substitutes (FODM217DR2 and FODM217DR2V) maintain full compliance with RoHS3 and REACH requirements. The FODM217DR2V exhibits a minor timing variation in fall time (3µs versus 2µs for the primary part), which remains within acceptable operating margins for standard isolation applications.

All parts are rated for the same operating temperature range (-55°C to 110°C) and carry unlimited moisture sensitivity classification, ensuring equivalent reliability in production and field deployment.

Frequently Asked Questions (FAQ)

Q: Can FODM217DR2 and FODM217DR2V be used interchangeably with ACPL-217-50DE?

A: Yes. Both onsemi parts meet all electrical and mechanical specifications. The isolation voltage, current transfer ratio, output voltage and current ratings, and package dimensions are identical. All three parts are active production components with equivalent compliance certifications.

Q: What is the difference between FODM217DR2 and FODM217DR2V?

A: The primary difference is the fall time specification. FODM217DR2 specifies 3µs fall time (matching ACPL-217-50DE at 3µs), while FODM217DR2V specifies 3µs fall time. Both parts maintain the same 3µs turn-off time and meet the same isolation and output current requirements.

Q: Are the package dimensions identical across all three parts?

A: Yes. All three parts use the 4-SOIC package with 0.173" (4.40mm) width. Surface mount footprints are mechanically compatible for PCB assembly without design modification.

Q: Do all parts meet RoHS3 compliance?

A: Yes. ACPL-217-50DE, FODM217DR2, and FODM217DR2V are all RoHS3 compliant with REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the isolation voltage specification for these parts?

A: All three parts provide 3750Vrms isolation, meeting high-voltage isolation requirements for industrial and power management applications.

Q: Can these parts be used in applications requiring 50mA output current?

A: Yes. All three parts are rated for 50mA maximum output current per channel, supporting standard logic-level and driver applications within this current specification.

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