HCPL-817-W6LE Equivalent & Substitute Parts

Part Overview

The HCPL-817-W6LE is an optoisolator with transistor output manufactured by Broadcom Limited. This 4-DIP through-hole component provides 5000Vrms isolation and is designed for DC input applications requiring galvanic isolation. The part is active and in production. Substitute parts are identified to address inventory availability, extended lead times, or application-specific parameter requirements within the optoisolator category.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL-817-W6LE
Manufacturer	Broadcom Limited
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	100% @ 5mA
Output Type	Transistor
Voltage - Output (Max)	70V
Current - Output / Channel	50mA
Vce Saturation (Max)	200mV
Operating Temperature	-30°C ~ 100°C
Mounting Type	Through Hole
Package / Case	4-DIP (0.400", 10.16mm)
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the HCPL-817-W6LE are qualified based on the following criteria:

Single channel transistor output optoisolator configuration
Isolation voltage of 5000Vrms or higher
DC input type
Through-hole mounting in 4-DIP package
Operating temperature range of -30°C to 100°C or wider
Output current capability of 50mA per channel
Vce saturation of 200mV or lower
RoHS3 compliance and REACH unaffected status

The substitute parts ISP817A, ISP817BX, and ISP817CX from Isocom Components 2004 LTD meet these core electrical and mechanical requirements. Differences in current transfer ratio ranges and isolation voltage ratings above the minimum threshold do not preclude substitution when application requirements are satisfied.

Parameter Comparison

Parameter	HCPL-817-W6LE	ISP817A	ISP817BX	ISP817CX
Manufacturer	Broadcom Limited	Isocom Components 2004 LTD	Isocom Components 2004 LTD	Isocom Components 2004 LTD
Number of Channels	1	1	1	1
Voltage - Isolation	5000Vrms	5300Vrms	5300Vrms	5300Vrms
Current Transfer Ratio (Min)	50% @ 5mA	80% @ 5mA	130% @ 5mA	300% @ 5mA
Current Transfer Ratio (Max)	100% @ 5mA	160% @ 5mA	260% @ 5mA	600% @ 5mA
Rise / Fall Time (Typ)	4µs, 3µs	4µs, 3µs	4µs, 3µs	4µs, 3µs
Input Type	DC	DC	DC	DC
Output Type	Transistor	Transistor	Transistor	Transistor
Voltage - Output (Max)	70V	80V	80V	80V
Current - Output / Channel	50mA	50mA	50mA	50mA
Voltage - Forward (Vf) (Typ)	1.2V	1.2V	1.2V	1.2V
Current - DC Forward (If) (Max)	50 mA	50 mA	50 mA	50 mA
Vce Saturation (Max)	200mV	200mV	200mV	200mV
Operating Temperature	-30°C ~ 100°C	-30°C ~ 100°C	-30°C ~ 100°C	-30°C ~ 100°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	4-DIP (0.400", 10.16mm)	4-DIP (0.300", 7.62mm)	4-DIP (0.300", 7.62mm)	4-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts are active products with ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the HCPL-817-W6LE. The ISP817 series from Isocom Components 2004 LTD provides isolation voltage ratings of 5300Vrms, exceeding the 5000Vrms requirement of the main part.

Selection among ISP817A, ISP817BX, and ISP817CX should be based on current transfer ratio requirements specific to the application. ISP817A provides a 80% to 160% range, ISP817BX provides 130% to 260%, and ISP817CX provides 300% to 600%. All three maintain identical output voltage, output current, saturation voltage, and rise/fall time characteristics.

Package dimensions differ between the main part (0.400", 10.16mm) and all substitute parts (0.300", 7.62mm). PCB layout and mechanical clearance must be evaluated for physical compatibility in the target application.

Frequently Asked Questions (FAQ)

Q: Can ISP817A, ISP817BX, and ISP817CX be used interchangeably with HCPL-817-W6LE?

A: These parts share the same electrical output characteristics (50mA output current, 200mV Vce saturation, 70V to 80V maximum output voltage) and identical rise/fall times. Substitution is valid when the application current transfer ratio requirement falls within the specified range of the selected substitute part. Package dimensions differ and must be verified for PCB compatibility.

Q: What is the significance of the different current transfer ratio ranges?

A: Current transfer ratio determines the output current relative to input current. ISP817A (80-160%) provides moderate gain, ISP817BX (130-260%) provides higher gain, and ISP817CX (300-600%) provides the highest gain. Selection depends on the input current available and the output current required by the application circuit.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. ISP817A, ISP817BX, and ISP817CX are all ROHS3 compliant and REACH unaffected, matching the compliance status of the HCPL-817-W6LE.

Q: What is the impact of the 5300Vrms isolation rating on substitute parts compared to the 5000Vrms rating of the main part?

A: The higher isolation voltage of the substitute parts (5300Vrms) exceeds the minimum requirement and does not restrict substitution. Applications requiring 5000Vrms isolation are satisfied by parts rated for 5300Vrms.

Q: How do package dimensions affect substitution?

A: The HCPL-817-W6LE uses a 4-DIP package with 0.400" (10.16mm) spacing, while all substitute parts use 0.300" (7.62mm) spacing. PCB footprints, hole spacing, and component clearance must be verified before substitution to ensure mechanical fit and assembly compatibility.

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