HCPL-817-W0LE Equivalent & Substitute Parts

Part Overview

The HCPL-817-W0LE is an optoisolator with transistor output manufactured by Broadcom Limited. This component provides 5000Vrms isolation in a 4-DIP through-hole package and is designed for applications requiring galvanic isolation with DC input and transistor output configuration. The part is currently active in production with 1071 units in stock. Substitute parts are necessary when addressing supply constraints, inventory availability, or when design specifications allow for alternative isolation voltage ratings and current transfer ratio ranges.

Substiute Parts

HCPL-817-W0LE

Broadcom LimitedIn Stock: 1152HCPL-817-W0LE Datasheet

Current PartRFQ

ISP817A

Isocom Components 2004 LTDIn Stock: 12821ISP817A Datasheet

MFR RecommendedRFQ

ISP817BX

Isocom Components 2004 LTDIn Stock: 870ISP817BX Datasheet

MFR RecommendedRFQ

ISP817CX

Isocom Components 2004 LTDIn Stock: 2718ISP817CX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HCPL-817-W0LE is determined by the following critical parameters:

• Isolation Voltage: The main part specifies 5000Vrms. Substitute parts ISP817A, ISP817BX, and ISP817CX provide 5300Vrms isolation, which exceeds the minimum requirement and is therefore acceptable.
• Number of Channels: All parts maintain single-channel configuration.
• Input Type: All parts maintain DC input type.
• Output Type: All parts maintain transistor output configuration.
• Current - Output / Channel: All parts maintain 50mA maximum output current.
• Voltage - Forward (Vf): All parts maintain 1.2V typical forward voltage.
• Current - DC Forward (If) (Max): All parts maintain 50mA maximum forward current.
• Vce Saturation (Max): All parts maintain 200mV maximum saturation voltage.
• Rise / Fall Time: All parts maintain 4µs rise time and 3µs fall time.
• Operating Temperature: All parts maintain -30°C to 100°C operating range.
• Mounting Type: All parts maintain through-hole mounting.
• RoHS and REACH Compliance: All parts maintain ROHS3 compliance and REACH unaffected status.

The substitute parts differ in Current Transfer Ratio ranges and package dimensions. ISP817A, ISP817BX, and ISP817CX are manufactured by Isocom Components 2004 LTD and feature higher current transfer ratio specifications compared to the main part.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts—ISP817A, ISP817BX, and ISP817CX—are active products with ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the main part. The substitute parts provide higher isolation voltage ratings (5300Vrms versus 5000Vrms) and higher maximum output voltage (80V versus 70V), making them suitable for applications with equivalent or more stringent isolation requirements.

The primary distinction among substitute parts is the Current Transfer Ratio range. ISP817A provides 80–160% CTR, ISP817BX provides 130–260% CTR, and ISP817CX provides 300–600% CTR. Selection depends on circuit requirements for input current and output switching characteristics. All substitute parts maintain identical rise and fall times, forward voltage, saturation voltage, and output current specifications as the main part.

Package dimensions differ between the main part (0.400", 10.16mm) and substitute parts (0.300", 7.62mm). PCB layout and mechanical clearance must be verified before substitution.

Frequently Asked Questions (FAQ)

Q: Can ISP817A, ISP817BX, or ISP817CX be used as direct replacements for HCPL-817-W0LE?

A: Yes, all three substitute parts meet the electrical and functional requirements of the HCPL-817-W0LE. They maintain identical input type, output type, number of channels, operating temperature range, and critical output specifications. Higher isolation voltage and output voltage ratings in the substitute parts provide additional design margin.

Q: What is the difference between ISP817A, ISP817BX, and ISP817CX?

A: The three parts differ only in Current Transfer Ratio specifications. ISP817A provides the lowest CTR range (80–160%), ISP817BX provides mid-range CTR (130–260%), and ISP817CX provides the highest CTR range (300–600%). All other electrical parameters are identical.

Q: Are there package compatibility concerns?

A: Yes. The HCPL-817-W0LE uses a 4-DIP package with 0.400" (10.16mm) spacing, while all substitute parts use 4-DIP packages with 0.300" (7.62mm) spacing. PCB footprints and mechanical clearances must be verified and potentially redesigned before substitution.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the main part.

Q: What inventory levels are available?

A: HCPL-817-W0LE has 1071 units in stock. ISP817A has 12790 units, ISP817BX has 808 units, and ISP817CX has 2685 units in stock.