HCPL-817-W6BE Equivalent & Substitute Parts

Part Overview

The HCPL-817-W6BE is an optoisolator with transistor output manufactured by Broadcom Limited. This 4-DIP through-hole component provides 5000Vrms isolation with a single channel and 50mA output current capability. The part is active and in production, with 3022 units currently in stock. Alternative models from Isocom Components 2004 LTD are available as direct substitutes when the primary part is unavailable or when specific performance characteristics are required for application requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL-817-W6BE
Manufacturer	Broadcom Limited
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	130% @ 5mA
Current Transfer Ratio (Max)	260% @ 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

Substitution eligibility for the HCPL-817-W6BE is determined by the following critical parameters:

Isolation Voltage: Substitute parts must meet or exceed 5000Vrms isolation rating
Output Type: Must be transistor output configuration
Number of Channels: Single channel requirement
Mounting Type: Through-hole mounting only
Package Compatibility: 4-DIP form factor
Current Output Capability: Minimum 50mA per channel
Operating Temperature Range: Must support -30°C to 100°C
Compliance: ROHS3 compliant, REACH unaffected status

The three Isocom Components 2004 LTD parts (ISP817A, ISP817BX, ISP817CX) meet all substitution criteria. These parts provide 5300Vrms isolation, exceeding the primary part specification, and maintain identical output current, saturation voltage, and temperature operating range. Current transfer ratio performance varies across the substitute options, allowing selection based on specific circuit gain requirements.

Parameter Comparison

Parameter	HCPL-817-W6BE	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)	130% @ 5mA	80% @ 5mA	130% @ 5mA	300% @ 5mA
Current Transfer Ratio (Max)	260% @ 5mA	160% @ 5mA	260% @ 5mA	600% @ 5mA
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)	50mA	50mA	50mA	50mA
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
Inventory (Pcs)	3022	12790	808	2685

Engineering Selection Recommendations

All three substitute parts are active products with ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the primary HCPL-817-W6BE component.

ISP817A provides the lowest current transfer ratio range (80% to 160% @ 5mA) and is suitable for applications where lower gain is acceptable or preferred. This part offers the highest inventory availability at 12790 units.

ISP817BX matches the current transfer ratio specification of the primary part (130% to 260% @ 5mA) and provides direct electrical equivalence. Inventory is limited at 808 units.

ISP817CX delivers the highest current transfer ratio range (300% to 600% @ 5mA) for applications requiring maximum gain performance. Inventory availability is 2685 units.

All substitute parts exceed the isolation voltage specification (5300Vrms versus 5000Vrms) and support identical output current, saturation voltage, and operating temperature range. Package dimensions differ slightly (0.300" versus 0.400" DIP width), which may affect PCB layout considerations in space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can ISP817A, ISP817BX, and ISP817CX be used interchangeably with HCPL-817-W6BE?

A: These parts share identical functional specifications for isolation voltage, output current, saturation voltage, and operating temperature. The primary difference is current transfer ratio performance. ISP817BX provides direct electrical equivalence. ISP817A and ISP817CX offer alternative gain characteristics. All three are through-hole 4-DIP components with ROHS3 compliance.

Q: What is the significance of the package dimension difference (0.400" versus 0.300")?

A: The HCPL-817-W6BE uses a 0.400" (10.16mm) DIP width, while all Isocom substitutes use 0.300" (7.62mm) DIP width. This affects PCB footprint spacing and hole placement. PCB redesign may be required for direct substitution in existing layouts.

Q: Which substitute part should be selected for maximum circuit gain?

A: ISP817CX provides the highest current transfer ratio (300% to 600% @ 5mA), delivering maximum gain performance. ISP817BX matches the primary part specification (130% to 260% @ 5mA). ISP817A offers the lowest gain range (80% to 160% @ 5mA).

Q: Are all substitute parts compliant with environmental and regulatory standards?

A: All three Isocom substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the HCPL-817-W6BE.

Q: What is the isolation voltage advantage of the substitute parts?

A: The Isocom ISP817 series provides 5300Vrms isolation, exceeding the HCPL-817-W6BE specification of 5000Vrms. This provides additional safety margin in high-voltage isolation applications.

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