ACPL-072L-500 Equivalent & Substitute Parts

Part Overview

The ACPL-072L-500 is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This 3750Vrms isolation device operates at 25MBd with push-pull totem pole output configuration and 10kV/µs common mode transient immunity. The part is currently active in production status. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications requiring compatible isolation performance and electrical characteristics.

Substiute Parts

ACPL-072L-500

Broadcom LimitedIn Stock: 879ACPL-072L-500 Datasheet

Current PartRFQ

ACPL-072L-500E

Broadcom LimitedIn Stock: 18485ACPL-072L-500E Datasheet

DirectRFQ

FOD0710

Fairchild SemiconductorIn Stock: 19137FOD0710 Datasheet

MFR RecommendedRFQ

FOD0710R2

onsemiIn Stock: 3727FOD0710R2 Datasheet

MFR RecommendedRFQ

FOD0720

Fairchild SemiconductorIn Stock: 5469FOD0720 Datasheet

MFR RecommendedRFQ

FOD0720R2

Fairchild SemiconductorIn Stock: 3747FOD0720R2 Datasheet

MFR RecommendedRFQ

FOD0721

onsemiIn Stock: 1997FOD0721 Datasheet

MFR RecommendedRFQ

FOD0721R2

onsemiIn Stock: 3926FOD0721R2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ACPL-072L-500 is determined by the following critical parameters:

Primary Substitution Criteria:

• Isolation voltage: 3750Vrms minimum
• Output configuration: Push-pull, totem pole
• Package type: 8-SOIC (0.154", 3.90mm Width)
• Number of channels: 1
• Mounting type: Surface mount

Secondary Compatibility Parameters:

• Data rate: 25MBd or higher
• Common mode transient immunity: 10kV/µs or higher
• Output current: 10 mA minimum
• Propagation delay: 40ns or faster
• Supply voltage compatibility: 3V ~ 3.6V and/or 4.5V ~ 5.5V

Parts meeting all primary criteria and maintaining or exceeding secondary parameters are classified as direct substitutes. Parts with reduced data rate (12.5Mbps) or lower CMTI (12.5Mbps variants) remain functionally compatible for applications not requiring maximum speed performance.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Identical Electrical Performance): ACPL-072L-500E is the direct equivalent, offering identical electrical specifications with ROHS3 compliance. This part is recommended for new designs and applications requiring regulatory compliance.

Functional Substitutes (Equivalent or Enhanced Performance): FOD0720, FOD0720R2, FOD0721, and FOD0721R2 provide equivalent or superior performance. These parts maintain 3750Vrms isolation, 25Mbps data rate, and 40ns propagation delay. Enhanced CMTI (20kV/µs vs. 10kV/µs) provides improved noise immunity. Supply voltage is limited to 4.5V~5.5V range. FOD0721 and FOD0721R2 carry ROHS3 compliance certification.

Reduced-Speed Substitutes (Lower Data Rate): FOD0710 and FOD0710R2 operate at 12.5Mbps, half the data rate of the primary part. These are suitable for applications not requiring 25MBd performance. FOD0710R2 provides ROHS3 compliance. Supply voltage is limited to 4.5V~5.5V range.

Compliance Considerations: For applications requiring RoHS compliance, ACPL-072L-500E, FOD0710R2, FOD0721, and FOD0721R2 meet ROHS3 requirements. The original ACPL-072L-500 is RoHS non-compliant.

Temperature Range: ACPL-072L-500 and ACPL-072L-500E support extended operating temperature to 105°C. All FOD series substitutes are rated to 100°C maximum.

Frequently Asked Questions (FAQ)

Q: Can FOD0710 or FOD0710R2 replace ACPL-072L-500 in existing designs? A: Yes, with design review. Both parts maintain 3750Vrms isolation, 8-SOIC package, and 40ns propagation delay. The 12.5Mbps data rate is half that of ACPL-072L-500. Applications operating below 12.5Mbps will function identically. Supply voltage is restricted to 4.5V~5.5V; designs using 3V~3.6V supply require redesign.

Q: What is the difference between FOD0720 and FOD0721? A: Both operate at 25Mbps with 3750Vrms isolation and 8-SOIC package. FOD0720 is manufactured by Fairchild Semiconductor; FOD0721 is manufactured by onsemi. FOD0721 carries ROHS3 compliance; FOD0720 compliance status is not specified. Electrical performance is equivalent.

Q: Is ACPL-072L-500E a direct replacement for ACPL-072L-500? A: Yes. ACPL-072L-500E is electrically and mechanically identical to ACPL-072L-500, with the addition of ROHS3 compliance. Packaging differs (Cut Tape & Digi-Reel vs. Tape & Reel), but the component itself is identical.

Q: Why do FOD series parts have higher CMTI (20kV/µs vs. 10kV/µs)? A: CMTI specification represents common mode transient immunity. Higher CMTI indicates superior rejection of fast voltage transitions on the isolation barrier. FOD series parts provide enhanced noise immunity compared to ACPL-072L-500, making them suitable for high-noise environments.

Q: Can I use FOD0720R2 in a 3V supply application? A: No. FOD0720R2 supply voltage range is 4.5V~5.5V. ACPL-072L-500 and ACPL-072L-500E support 3V~3.6V operation. For 3V applications, use ACPL-072L-500 or ACPL-072L-500E only.

Q: What packaging options are available for these parts? A: ACPL-072L-500 is supplied in Tape & Reel (TR). ACPL-072L-500E is available in Cut Tape (CT) & Digi-Reel. FOD series parts are available in Bulk, Tape & Reel, or Tube depending on specific part number. All use 8-SOIC (0.154", 3.90mm Width) package.

Q: Are all these parts suitable for industrial temperature range applications? A: ACPL-072L-500 and ACPL-072L-500E are rated -40°C ~ 105°C. FOD series parts are rated -40°C ~ 100°C. For applications requiring operation above 100°C, use ACPL-072L-500 or ACPL-072L-500E.