HCPL-673K Equivalent & Substitute Parts

Part Overview

The HCPL-673K is a 2-channel optoisolator with Darlington output, rated for 1500VDC isolation voltage. This component is designed for applications requiring galvanic isolation between logic and power circuits. The part is currently active in production with 998 units in stock. Substitute parts are identified based on matching electrical specifications and package compatibility to ensure direct functional equivalence in circuit applications.

Substiute Parts

HCPL-673K

Broadcom LimitedIn Stock: 1108HCPL-673K Datasheet

Current PartRFQ

HCPL-6730

Broadcom LimitedIn Stock: 1516HCPL-6730 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The HCPL-6730 qualifies as a direct substitute for the HCPL-673K based on the following matching parameters:

• Number of Channels: 2
• Voltage - Isolation: 1500VDC
• Current Transfer Ratio (Min): 200% @ 5mA
• Output Type: Darlington
• Voltage - Output (Max): 20V
• Current - Output / Channel: 40mA
• Vce Saturation (Max): 110mV
• Operating Temperature: -55°C ~ 125°C
• Package / Case: 20-CLCC
• Mounting Type: Surface Mount
• Supplier Device Package: 20-LCCC (8.89x8.89)

Both parts share identical electrical and mechanical specifications. The primary difference is packaging format: HCPL-673K is supplied in Bulk packaging, while HCPL-6730 is supplied in Tube packaging.

Parameter Comparison

Engineering Selection Recommendations

Both HCPL-673K and HCPL-6730 are active production parts from Broadcom Limited with identical electrical and mechanical specifications. Selection between these parts should be based on packaging requirements and inventory availability. The HCPL-673K is available in Bulk packaging with 998 units in stock, while the HCPL-6730 is available in Tube packaging with 1431 units in stock. Both parts carry the same RoHS non-compliant and REACH Unaffected certifications. For applications requiring specific packaging formats or higher inventory levels, the HCPL-6730 offers greater availability.

Frequently Asked Questions (FAQ)

Q: Can HCPL-6730 be used as a direct replacement for HCPL-673K?

A: Yes. Both parts are manufactured by Broadcom Limited and share identical electrical specifications, isolation voltage, channel count, output type, and package dimensions. The only difference is the packaging format (Bulk vs. Tube).

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching: number of channels (2), isolation voltage (1500VDC), current transfer ratio (200% @ 5mA), output type (Darlington), maximum output voltage (20V), output current per channel (40mA), Vce saturation (110mV), operating temperature range (-55°C ~ 125°C), and package type (20-CLCC with 8.89x8.89mm dimensions).

Q: Does packaging format affect circuit performance?

A: No. Bulk and Tube packaging formats do not affect electrical performance or functionality. The difference is in handling and storage format for manufacturing and assembly processes.

Q: Are there any compliance differences between these parts?

A: No. Both parts share identical RoHS non-compliant and REACH Unaffected certifications.

Q: Which part should I select based on availability?

A: HCPL-6730 has higher inventory (1431 units) compared to HCPL-673K (998 units). Selection should align with your packaging requirements and supply chain preferences.