ACPL-072L-560 Equivalent & Substitute Parts

Part Overview

The ACPL-072L-560 is a logic output optoisolator manufactured by Broadcom Limited, featuring 3750Vrms isolation voltage, 25MBd data rate, and push-pull totem pole output configuration in an 8-SO Tall package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Key Parameters

Parameter	Value
Isolation Voltage	3750Vrms
Data Rate	25MBd
Common Mode Transient Immunity (Min)	10kV/µs
Output Type	Push-Pull, Totem Pole
Current - Output / Channel	10 mA
Number of Channels	1
Voltage - Supply	3V ~ 3.6V, 4.5V ~ 5.5V
Operating Temperature	-40°C ~ 105°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Isolation voltage: 3750Vrms (exact match required)
Output configuration: Push-pull, totem pole (exact match required)
Package / Case: 8-SOIC form factor (exact match required)
Number of channels: 1 (exact match required)
Output current: 10 mA (exact match required)

Substitute parts are grouped into two categories based on data rate capability:

Category A - Direct Functional Equivalent (25MBd): Parts maintaining the original 25MBd data rate specification.

Category B - Reduced Data Rate Alternative (12.5Mbps): Parts with lower data rate but identical isolation, output configuration, and package specifications.

Parameter Comparison

Part Number	Manufacturer	Data Rate	CMTI (Min)	Propagation Delay tpLH / tpHL (Max)	Rise / Fall Time (Typ)	Voltage - Supply	Operating Temperature	Product Status	RoHS Status
ACPL-072L-560	Broadcom Limited	25MBd	10kV/µs	40ns, 40ns	9ns, 8ns	3V ~ 3.6V, 4.5V ~ 5.5V	-40°C ~ 105°C	Discontinued	RoHS non-compliant
ACPL-072L-560E	Broadcom Limited	25MBd	10kV/µs	40ns, 40ns	9ns, 8ns	3V ~ 3.6V, 4.5V ~ 5.5V	-40°C ~ 105°C	Active	ROHS3 Compliant
FOD0710	Fairchild Semiconductor	12.5Mbps	20kV/µs	40ns, 40ns	5ns, 4.5ns	4.5V ~ 5.5V	-40°C ~ 100°C	Active	Not specified
FOD0710R2	onsemi	12.5Mbps	20kV/µs	40ns, 40ns	5ns, 4.5ns	4.5V ~ 5.5V	-40°C ~ 100°C	Active	ROHS3 Compliant
FOD0720	Fairchild Semiconductor	25Mbps	20kV/µs	40ns, 40ns	5ns, 4.5ns	4.5V ~ 5.5V	-40°C ~ 100°C	Active	Not specified
FOD0720R2	Fairchild Semiconductor	25Mbps	20kV/µs	40ns, 40ns	5ns, 4.5ns	4.5V ~ 5.5V	-40°C ~ 100°C	Active	Not specified
FOD0721	onsemi	25Mbps	20kV/µs	40ns, 40ns	5ns, 4.5ns	4.5V ~ 5.5V	-40°C ~ 100°C	Active	ROHS3 Compliant
FOD0721R2	onsemi	25Mbps	20kV/µs	40ns, 40ns	5ns, 4.5ns	4.5V ~ 5.5V	-40°C ~ 100°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: ACPL-072L-560E

ACPL-072L-560E is the direct equivalent from Broadcom Limited with identical electrical specifications and package configuration. This part maintains the original 25MBd data rate, 10kV/µs CMTI, and dual supply voltage range (3V ~ 3.6V, 4.5V ~ 5.5V). The part is currently active and ROHS3 compliant, addressing the RoHS non-compliance status of the discontinued ACPL-072L-560.

Secondary Recommendations: FOD0720, FOD0720R2, FOD0721, FOD0721R2

These Fairchild Semiconductor and onsemi alternatives maintain the 25MBd data rate specification and are available in active production status. All feature ROHS3 compliance. Supply voltage is restricted to 4.5V ~ 5.5V (single range), and operating temperature range is -40°C ~ 100°C. These parts are suitable for applications not requiring the 3V ~ 3.6V supply range or extended temperature operation to 105°C.

Alternative for Reduced Data Rate Applications: FOD0710, FOD0710R2

FOD0710 and FOD0710R2 operate at 12.5Mbps data rate with enhanced CMTI of 20kV/µs. These parts are applicable only to designs where 12.5Mbps bandwidth is sufficient. Supply voltage and temperature constraints match the FOD072x series.

Frequently Asked Questions (FAQ)

Q: Can FOD0710 or FOD0710R2 replace ACPL-072L-560 in existing designs?

A: FOD0710 and FOD0710R2 are functionally compatible only if the application does not require 25MBd data rate operation. The 12.5Mbps specification represents a 50% reduction in bandwidth. All other electrical parameters (isolation voltage, output configuration, output current) are identical. Verify application bandwidth requirements before substitution.

Q: What is the difference between FOD0720 and FOD0720R2?

A: FOD0720 is supplied in bulk packaging, while FOD0720R2 is supplied in tape and reel format. Electrical specifications are identical. Selection depends on procurement and assembly requirements.

Q: Does the supply voltage range difference affect substitution?

A: ACPL-072L-560 supports 3V ~ 3.6V and 4.5V ~ 5.5V supply ranges. FOD072x series supports only 4.5V ~ 5.5V. If the design requires 3V ~ 3.6V operation, only ACPL-072L-560E is suitable. For 4.5V ~ 5.5V applications, FOD072x alternatives are compatible.

Q: Are all substitute parts pin-compatible?

A: All substitute parts use the 8-SOIC (0.154", 3.90mm Width) package. Pin compatibility must be verified against specific device datasheets, as internal pin assignments may differ between manufacturers.

Q: What is the significance of CMTI differences?

A: ACPL-072L-560 specifies 10kV/µs minimum CMTI. FOD072x series specifies 20kV/µs, representing superior common mode transient immunity. This enhanced specification does not prevent substitution; it indicates improved performance in high-speed switching environments.

Q: Is ACPL-072L-560E a direct drop-in replacement?

A: ACPL-072L-560E maintains identical electrical specifications and package configuration. Pin compatibility should be confirmed with Broadcom datasheets. The part is recommended as the primary replacement for discontinued ACPL-072L-560.

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