HCPL-0454#500 Equivalent & Substitute Parts

Part Overview

The HCPL-0454#500 is an optoisolator with transistor output manufactured by Broadcom Limited. This component provides galvanic isolation up to 3750Vrms with a single channel configuration in an 8-SOIC surface mount package. The part is currently active in production status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, packaging format preferences, or compliance requirements.

Substiute Parts

HCPL-0454#500

Broadcom LimitedIn Stock: 2487HCPL-0454#500 Datasheet

Current PartRFQ

HCPL-0454-500E

Broadcom LimitedIn Stock: 42825HCPL-0454-500E Datasheet

Parametric EquivalentRFQ

SFH6343T

Vishay Semiconductor Opto DivisionIn Stock: 12603SFH6343T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-0454#500 are classified based on the following substitution criteria:

Parametric Equivalents maintain identical or functionally equivalent electrical specifications across all critical parameters: isolation voltage, number of channels, current transfer ratio, output voltage rating, output current per channel, input/output types, and operating temperature range. These parts are pin-compatible and package-compatible with the main part number.

Manufacturer Recommended Alternatives meet or exceed the electrical specifications of the main part while maintaining the same package form factor and mounting type. These parts may have enhanced performance characteristics such as higher isolation voltage or improved current transfer ratio specifications.

The key parameters determining substitution eligibility are:

• Single channel configuration
• Isolation voltage rating (minimum 3750Vrms)
• Transistor output type
• DC input type
• 8-SOIC package form factor
• Surface mount mounting type
• Operating temperature range of -55°C to 100°C

Parameter Comparison

Engineering Selection Recommendations

HCPL-0454-500E is a parametric equivalent from Broadcom Limited with identical electrical specifications to the HCPL-0454#500. The primary distinction is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and RoHS compliance status (ROHS3 Compliant versus RoHS non-compliant). This part is suitable for applications requiring ROHS3 compliance or alternative packaging formats while maintaining full electrical equivalence.

SFH6343T is a manufacturer-recommended alternative from Vishay Semiconductor Opto Division. This part exceeds the isolation voltage specification (4000Vrms versus 3750Vrms) and maximum output voltage rating (25V versus 20V). The current transfer ratio maximum specification is defined (50% @ 16mA) compared to the main part. Turn-on and turn-off times are slightly longer (250ns, 500ns versus 200ns, 300ns). This part is suitable for applications requiring enhanced isolation voltage performance or higher output voltage capability while maintaining compatibility with the 8-SOIC package form factor and operating temperature range.

Both substitute parts maintain active product status and REACH compliance. Selection between these options depends on specific compliance requirements, packaging preferences, and performance margin requirements for the target application.

Frequently Asked Questions (FAQ)

Q: Can HCPL-0454-500E be used as a direct replacement for HCPL-0454#500?

A: Yes. HCPL-0454-500E maintains identical electrical specifications and package form factor. The primary differences are packaging format and RoHS compliance status. Pin configuration and electrical performance are equivalent.

Q: What are the key differences between HCPL-0454#500 and SFH6343T?

A: SFH6343T provides higher isolation voltage (4000Vrms versus 3750Vrms) and higher maximum output voltage (25V versus 20V). Turn-on and turn-off times are longer (250ns, 500ns versus 200ns, 300ns). Current transfer ratio minimum specification is lower (19% versus 21%), but maximum specification is defined (50%). All parts share the same 8-SOIC package, single channel configuration, and operating temperature range.

Q: Are all three parts compatible with the same PCB layout?

A: Yes. All three parts use the 8-SOIC (0.154", 3.90mm Width) package form factor and surface mount mounting type. PCB footprints are identical.

Q: Which substitute part should be selected for RoHS-compliant applications?

A: Both HCPL-0454-500E and SFH6343T carry ROHS3 Compliant status. HCPL-0454#500 is RoHS non-compliant. Selection between the two compliant options depends on whether the application requires the enhanced isolation voltage and output voltage specifications of SFH6343T or the identical electrical specifications of HCPL-0454-500E.

Q: What is the impact of longer switching times in SFH6343T?

A: SFH6343T has turn-on and turn-off times of 250ns and 500ns respectively, compared to 200ns and 300ns for HCPL-0454#500. This represents a 25% increase in turn-on time and 67% increase in turn-off time. Applications with strict timing requirements should evaluate whether these timing differences are acceptable for the target circuit.

Q: Are there inventory considerations when selecting between these parts?

A: HCPL-0454-500E has significantly higher inventory availability (42,805 Pcs) compared to HCPL-0454#500 (2,420 Pcs). SFH6343T inventory is 12,560 Pcs. Inventory levels may influence part selection for high-volume production requirements.