HCPL-570K Equivalent & Substitute Parts

Part Overview

The HCPL-570K is an optoisolator with Darlington output manufactured by Broadcom Limited. This component provides 1500VDC isolation with a single channel configuration in an 8-DIP through-hole package. The device is currently active in production and widely used in industrial control, power management, and signal isolation applications where galvanic isolation and high voltage withstand capability are required. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

HCPL-570K

Broadcom LimitedIn Stock: 647HCPL-570K Datasheet

Current PartRFQ

HCPL-5700

Broadcom LimitedIn Stock: 2259HCPL-5700 Datasheet

Parametric EquivalentRFQ

HCPL-5701

Broadcom LimitedIn Stock: 1288HCPL-5701 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-570K are identified based on strict parametric equivalence across the following critical specifications:

• Voltage isolation rating: 1500VDC
• Current transfer ratio minimum: 200% @ 5mA
• Output configuration: Darlington output, single channel
• Maximum output voltage: 20V
• Maximum output current per channel: 40mA
• Operating temperature range: -55°C ~ 125°C
• Package type: 8-DIP through-hole
• Input type: DC
• Compliance certifications: ROHS3 Compliant, REACH Unaffected

All substitute parts listed maintain identical electrical and mechanical specifications, ensuring direct functional interchangeability in circuit applications. Substitutes are limited to parts manufactured by Broadcom Limited within the HCPL-570 base product family.

Parameter Comparison

Engineering Selection Recommendations

All three parts—HCPL-570K, HCPL-5700, and HCPL-5701—are active production components manufactured by Broadcom Limited with identical electrical and mechanical specifications. Selection among these parts is based on availability and inventory status rather than technical differentiation.

HCPL-5700 maintains the highest inventory level at 2160 pieces, followed by HCPL-5701 at 1250 pieces, and HCPL-570K at 613 pieces. All parts carry ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

For applications requiring immediate availability or bulk procurement, HCPL-5700 is the preferred selection. For applications with existing design documentation specifying HCPL-570K, direct substitution with HCPL-5700 or HCPL-5701 requires no circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can HCPL-5700 or HCPL-5701 be used as direct replacements for HCPL-570K?

A: Yes. All three parts are parametrically equivalent across isolation voltage, current transfer ratio, output configuration, temperature range, and package type. Direct substitution is supported without circuit modification.

Q: Are there any differences in electrical performance between these parts?

A: No. The electrical specifications—including isolation voltage (1500VDC), current transfer ratio (200% @ 5mA), output current (40mA), and saturation voltage (110mV)—are identical across all three part numbers.

Q: Do all substitute parts use the same 8-DIP package?

A: Yes. HCPL-570K, HCPL-5700, and HCPL-5701 all use the 8-DIP (0.300", 7.62mm) through-hole package with identical pinout and mechanical dimensions.

Q: Are there compliance or certification differences?

A: No. All parts maintain ROHS3 compliance, REACH unaffected status, and identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.49.8000).

Q: What is the operating temperature range for these optoisolators?

A: The operating temperature range for all three parts is -55°C to 125°C, supporting industrial and extended temperature applications.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. The identical package, pinout, and electrical specifications enable direct PCB-level substitution without design changes or layout modifications.