HCPL-0723-500 Equivalent & Substitute Parts

Part Overview

The HCPL-0723-500 is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This 3750Vrms isolation device features a single channel with push-pull, totem pole output configuration and supports data rates up to 50MBd. The component is currently active in production and widely used in industrial control, power conversion, and communication interface circuits where galvanic isolation is required.

Substitute parts are necessary when the original HCPL-0723-500 becomes unavailable, when alternative packaging formats are required for supply chain optimization, or when design requirements permit operation with different performance characteristics within the same isolation voltage and output topology class.

Substiute Parts

HCPL-0723-500

Broadcom LimitedIn Stock: 1087HCPL-0723-500 Datasheet

Current PartRFQ

HCPL-0723-500E

Broadcom LimitedIn Stock: 2686HCPL-0723-500E 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 HCPL-0723-500 is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Isolation: 3750Vrms (mandatory match)
• Output Type: Push-Pull, Totem Pole (mandatory match)
• Number of Channels: 1 (mandatory match)
• Input Type: Logic (mandatory match)
• Current - Output / Channel: 10 mA (mandatory match)
• Mounting Type: Surface Mount (mandatory match)
• Package / Case: 8-SOIC (0.154", 3.90mm Width) (mandatory match)
• Voltage - Supply: 4.5V ~ 5.5V (mandatory match)

Secondary Substitution Parameters (allowable variation):

• Data Rate: Substitute parts may operate at lower data rates (12.5Mbps or 25Mbps) while maintaining compatibility with 50MBd applications
• Common Mode Transient Immunity (CMTI): Substitute parts may exceed the minimum 10kV/µs specification (20kV/µs acceptable)
• Propagation Delay: Substitute parts may have longer propagation delays (40ns maximum) while maintaining functional compatibility
• Operating Temperature: Substitute parts may support extended temperature ranges (-40°C ~ 100°C)
• Packaging Format: Tape & Reel (TR), Cut Tape (CT), and Bulk packaging are interchangeable for the same electrical device

Substitute parts identified in this reference maintain electrical and mechanical compatibility with the HCPL-0723-500 within these defined parameters.

Parameter Comparison

Engineering Selection Recommendations

Direct Broadcom Equivalent: HCPL-0723-500E is the direct electrical equivalent of HCPL-0723-500, differing only in packaging format (Cut Tape & Digi-Reel versus Tape & Reel). This part is ROHS3 compliant, whereas the original HCPL-0723-500 is RoHS non-compliant. Both parts maintain identical electrical specifications and operating characteristics. Selection between these two depends on packaging requirements and RoHS compliance mandates.

Cross-Manufacturer Substitutes: FOD0710, FOD0710R2, FOD0720, FOD0720R2, FOD0721, and FOD0721R2 are functionally compatible substitutes from Fairchild Semiconductor and onsemi. These parts maintain the same isolation voltage (3750Vrms), output topology (push-pull, totem pole), supply voltage range (4.5V ~ 5.5V), and package format (8-SOIC). All substitute parts are ROHS3 compliant and support extended operating temperature ranges (-40°C ~ 100°C).

The primary trade-off in selecting cross-manufacturer substitutes is reduced data rate performance (12.5Mbps to 25Mbps versus 50MBd) and increased propagation delay (40ns maximum versus 22ns maximum). These substitutes are suitable for applications where the HCPL-0723-500's 50MBd data rate is not required. FOD0710 and FOD0710R2 operate at 12.5Mbps, while FOD0720, FOD0720R2, FOD0721, and FOD0721R2 operate at 25Mbps.

All substitute parts provide equal or superior common mode transient immunity (20kV/µs versus 10kV/µs), which enhances noise immunity in high-dI/dt environments.

Frequently Asked Questions (FAQ)

Q: Can FOD0710 or FOD0710R2 be used as a direct replacement for HCPL-0723-500?

A: FOD0710 and FOD0710R2 are electrically compatible substitutes with identical isolation voltage, output topology, supply voltage, and package format. The primary difference is reduced data rate (12.5Mbps versus 50MBd). These parts are suitable for applications where 12.5Mbps bandwidth is sufficient. Propagation delay is also longer (40ns maximum versus 22ns maximum).

Q: What is the difference between FOD0720 and FOD0720R2?

A: FOD0720 and FOD0720R2 are electrically identical. The designation R2 indicates a revised version. Both operate at 25Mbps with 3750Vrms isolation and identical electrical characteristics. Selection depends on packaging availability and supply chain requirements.

Q: Are FOD0721 and FOD0721R2 equivalent to HCPL-0723-500?

A: FOD0721 and FOD0721R2 are functionally compatible substitutes with the same isolation voltage, output configuration, and package format. Both operate at 25Mbps data rate. FOD0721R2 is supplied in Tape & Reel packaging, while FOD0721 is supplied in Tube packaging. Both are ROHS3 compliant.

Q: What is the significance of the packaging format (Tape & Reel, Cut Tape, Bulk, Tube)?

A: Packaging format affects supply chain logistics and automated assembly processes. Tape & Reel (TR) and Cut Tape (CT) formats are optimized for pick-and-place assembly. Bulk and Tube packaging are used for manual assembly or lower-volume applications. Electrical performance is identical across all packaging formats for the same part number base.

Q: Why does HCPL-0723-500E have ROHS3 compliance while HCPL-0723-500 does not?

A: HCPL-0723-500E represents a revised version with updated manufacturing processes that meet ROHS3 compliance requirements. Both parts maintain identical electrical specifications and performance characteristics. Selection depends on regulatory requirements and RoHS compliance mandates for the end application.

Q: Can I use FOD0710 in a 50MBd application?

A: FOD0710 operates at a maximum data rate of 12.5Mbps. Using this part in a 50MBd application would result in data corruption and system failure. The HCPL-0723-500 or HCPL-0723-500E must be used for 50MBd applications, or FOD0720/FOD0720R2/FOD0721/FOD0721R2 if 25Mbps bandwidth is acceptable.

Q: What is the difference in common mode transient immunity between HCPL-0723-500 and the FOD series?

A: HCPL-0723-500 specifies a minimum CMTI of 10kV/µs. FOD0710, FOD0710R2, FOD0720, FOD0720R2, FOD0721, and FOD0721R2 all specify 20kV/µs minimum CMTI. Higher CMTI provides superior immunity to fast-changing common mode voltages, making the FOD series more robust in high-noise environments.

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

A: All substitute parts listed are available in the 8-SOIC (0.154", 3.90mm Width) package format, ensuring mechanical and electrical compatibility with HCPL-0723-500 PCB layouts. No package redesign is required when substituting these parts.