HCPL-817-56LE Equivalent & Substitute Parts

Part Overview

The HCPL-817-56LE is a 5000Vrms optoisolator with transistor output manufactured by Broadcom Limited. This single-channel device is designed for high-voltage isolation applications requiring DC input and transistor output configuration in a 4-SMD surface mount package. The part is active and in production with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified to address packaging format requirements, extended temperature range needs, or alternative sourcing when the primary part is unavailable.

Substiute Parts

HCPL-817-56LE

Broadcom LimitedIn Stock: 1061HCPL-817-56LE Datasheet

Current PartRFQ

LTV-817S

Lite-On Inc.In Stock: 3428LTV-817S Datasheet

UpgradeRFQ

LTV-817S-TA

Lite-On Inc.In Stock: 9703LTV-817S-TA Datasheet

UpgradeRFQ

LTV-817S-TA1

Lite-On Inc.In Stock: 2403LTV-817S-TA1 Datasheet

UpgradeRFQ

ISP817XSM

Isocom ComponentsIn Stock: 3231ISP817XSM Datasheet

MFR RecommendedRFQ

LTV-816S

Lite-On Inc.In Stock: 1997LTV-816S Datasheet

MFR RecommendedRFQ

LTV-816S-TA1

Lite-On Inc.In Stock: 6388LTV-816S-TA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-817-56LE are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Isolation voltage: 5000Vrms or higher
• Number of channels: 1
• Output type: Transistor
• Current transfer ratio minimum: 50% @ 5mA
• Rise/fall time: 4µs, 3µs
• Maximum output current: 50mA
• Vce saturation: 200mV
• Package: 4-SMD, Gull Wing surface mount
• Input type: DC
• Forward voltage: 1.2V typical
• Maximum DC forward current: 50mA
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Allowable Variations:

• Isolation voltage may exceed 5000Vrms
• Maximum output voltage may differ
• Operating temperature range may be extended
• Packaging format (Tube, Tape & Reel, Cut Tape) may vary
• Current transfer ratio maximum may exceed 100%

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain ROHS3 compliance and MSL rating 1 (Unlimited) status consistent with the HCPL-817-56LE. Selection between substitutes depends on specific application requirements:

LTV-817S Series (LTV-817S, LTV-817S-TA, LTV-817S-TA1): These Lite-On parts provide extended operating temperature range (-55°C to 110°C) compared to the HCPL-817-56LE. The LTV-817S-TA variant is packaged in Tape & Reel format matching the original part's packaging. The LTV-817S-TA1 offers Cut Tape and Digi-Reel packaging options. All three variants feature identical electrical specifications with maximum output voltage of 35V.

ISP817XSM: The Isocom Components part provides the highest isolation voltage rating at 5300Vrms and maximum output voltage of 80V. Operating temperature range matches the HCPL-817-56LE at -30°C to 100°C. This part is supplied in Tube packaging.

LTV-816S Series (LTV-816S, LTV-816S-TA1): These Lite-On parts provide extended operating temperature range (-50°C to 110°C) and maximum output voltage of 80V. The LTV-816S-TA1 is packaged in Tape & Reel format. Both variants support the widest temperature operating range among all substitutes.

Frequently Asked Questions (FAQ)

Q: Can LTV-817S series parts replace HCPL-817-56LE in all applications?

A: LTV-817S series parts are electrically compatible with HCPL-817-56LE for isolation voltage, channel count, output type, and switching characteristics. However, the maximum output voltage is 35V compared to 70V on the HCPL-817-56LE. Applications requiring output voltages above 35V must use ISP817XSM or LTV-816S series alternatives.

Q: What is the difference between LTV-817S, LTV-817S-TA, and LTV-817S-TA1?

A: These three parts are electrically identical. The differences are in packaging format: LTV-817S is supplied in Tube, LTV-817S-TA in Tape & Reel (TR), and LTV-817S-TA1 in Cut Tape (CT) and Digi-Reel format. Selection depends on assembly process requirements and volume needs.

Q: Which substitute offers the widest operating temperature range?

A: LTV-816S and LTV-816S-TA1 both support -50°C to 110°C operating temperature. LTV-817S series extends to -55°C to 110°C, providing the widest range among all substitutes.

Q: Is ISP817XSM compatible with applications designed for HCPL-817-56LE?

A: ISP817XSM meets all critical electrical parameters including isolation voltage (5300Vrms exceeds 5000Vrms requirement), output current (50mA), and switching characteristics. The higher maximum output voltage of 80V provides additional design margin. Operating temperature range matches the original part at -30°C to 100°C.

Q: Can I use LTV-816S parts as direct replacements?

A: LTV-816S and LTV-816S-TA1 are compatible substitutes with identical isolation voltage (5000Vrms), output current (50mA), and switching characteristics. The maximum output voltage of 80V exceeds the HCPL-817-56LE specification of 70V. Extended operating temperature range (-50°C to 110°C) provides additional environmental capability.

Q: What packaging format should I select for high-volume production?

A: Tape & Reel (TR) packaging is standard for automated assembly processes. LTV-817S-TA and LTV-816S-TA1 are supplied in TR format. For lower volumes or manual assembly, Tube packaging (LTV-817S, ISP817XSM, LTV-816S) or Cut Tape format (LTV-817S-TA1) may be appropriate.