ACPL-072L-060 Equivalent & Substitute Parts

Part Overview

The ACPL-072L-060 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 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
Propagation Delay tpLH / tpHL (Max)	40ns, 40ns
Voltage - Supply	3V ~ 3.6V, 4.5V ~ 5.5V
Operating Temperature	-40°C ~ 105°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Number of Channels	1

Substitute Part Grouping Explanation

Substitution of the ACPL-072L-060 is determined by the following critical parameters:

Isolation Voltage: 3750Vrms (all substitutes maintain this specification)
Output Configuration: Push-Pull, Totem Pole with 10 mA output current
Package: 8-SOIC form factor with identical pinout compatibility
Number of Channels: Single channel (1/0 input/output configuration)
Propagation Delay: Maximum 40ns for both tpLH and tpHL

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

Category A - 25MBd Equivalents: ACPL-072L-060E, FOD0720, FOD0720R2, FOD0721, FOD0721R2 maintain the original 25MBd specification with enhanced CMTI performance (20kV/µs).

Category B - 12.5Mbps Alternatives: FOD0710, FOD0710R2 operate at half the data rate (12.5Mbps) but provide superior CMTI (20kV/µs) and may be suitable for applications not requiring full 25MBd bandwidth.

Parameter Comparison

Part Number	Manufacturer	Isolation Voltage	Data Rate	CMTI (Min)	Output Current	Propagation Delay (Max)	Supply Voltage	Operating Temp	Product Status	RoHS Status
ACPL-072L-060	Broadcom Limited	3750Vrms	25MBd	10kV/µs	10 mA	40ns, 40ns	3V~3.6V, 4.5V~5.5V	-40°C ~ 105°C	Discontinued	RoHS non-compliant
ACPL-072L-060E	Broadcom Limited	3750Vrms	25MBd	10kV/µs	10 mA	40ns, 40ns	3V~3.6V, 4.5V~5.5V	-40°C ~ 105°C	Active	ROHS3 Compliant
FOD0720	Fairchild Semiconductor	3750Vrms	25Mbps	20kV/µs	10 mA	40ns, 40ns	4.5V~5.5V	-40°C ~ 100°C	Active	Not specified
FOD0720R2	Fairchild Semiconductor	3750Vrms	25Mbps	20kV/µs	10 mA	40ns, 40ns	4.5V~5.5V	-40°C ~ 100°C	Active	Not specified
FOD0721	onsemi	3750Vrms	25Mbps	20kV/µs	10 mA	40ns, 40ns	4.5V~5.5V	-40°C ~ 100°C	Active	ROHS3 Compliant
FOD0721R2	onsemi	3750Vrms	25Mbps	20kV/µs	10 mA	40ns, 40ns	4.5V~5.5V	-40°C ~ 100°C	Active	ROHS3 Compliant
FOD0710	Fairchild Semiconductor	3750Vrms	12.5Mbps	20kV/µs	10 mA	40ns, 40ns	4.5V~5.5V	-40°C ~ 100°C	Active	Not specified
FOD0710R2	onsemi	3750Vrms	12.5Mbps	20kV/µs	10 mA	40ns, 40ns	4.5V~5.5V	-40°C ~ 100°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: ACPL-072L-060E is the direct equivalent from Broadcom Limited, maintaining identical electrical specifications while offering active product status and ROHS3 compliance. This part is the preferred choice for designs requiring no modification.

Secondary Recommendations for 25MBd Applications: FOD0720, FOD0720R2, FOD0721, and FOD0721R2 provide full 25MBd data rate compatibility with enhanced CMTI performance (20kV/µs versus 10kV/µs). These parts require verification of supply voltage compatibility, as they operate on 4.5V~5.5V only, excluding the 3V~3.6V range supported by the original part. FOD0721 and FOD0721R2 (onsemi) offer ROHS3 compliance.

Alternative for Reduced Bandwidth Applications: FOD0710 and FOD0710R2 operate at 12.5Mbps and are suitable only for applications where the full 25MBd data rate is not required. FOD0710R2 (onsemi) provides ROHS3 compliance.

Compliance Consideration: The original ACPL-072L-060 is RoHS non-compliant. For new designs or compliance-driven applications, ACPL-072L-060E, FOD0721, FOD0721R2, or FOD0710R2 are preferred due to ROHS3 compliance status.

Frequently Asked Questions (FAQ)

Q: Can FOD0720 or FOD0721 directly replace ACPL-072L-060 without circuit modification?

A: FOD0720 and FOD0721 are electrically compatible for 25MBd applications but require verification of supply voltage. The original part supports 3V~3.6V and 4.5V~5.5V operation, while FOD0720/FOD0721 operate only on 4.5V~5.5V. If your circuit uses 3V~3.6V supply, use ACPL-072L-060E instead.

Q: What is the difference between FOD0720 and FOD0720R2?

A: Both parts are electrically identical. FOD0720R2 is supplied in Tape & Reel packaging, while FOD0720 is supplied in Bulk packaging. Selection depends on procurement and assembly requirements.

Q: Is FOD0710 suitable as a substitute?

A: FOD0710 is suitable only if your application does not require the full 25MBd data rate. It operates at 12.5Mbps and provides superior CMTI (20kV/µs). Verify that your signal bandwidth requirements do not exceed 12.5Mbps before selection.

Q: Why does ACPL-072L-060E have the same specifications but different product status?

A: ACPL-072L-060E is the active production variant of the ACPL-072L-060 series. The original ACPL-072L-060 was discontinued, while ACPL-072L-060E remains in active production with ROHS3 compliance. Both maintain identical electrical performance.

Q: Are all substitute parts available in 8-SOIC package?

A: Yes. All listed substitutes use the 8-SOIC (0.154", 3.90mm Width) package with identical pinout compatibility, ensuring direct PCB compatibility without layout modification.

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