PC123Y23FP9F Equivalent & Substitute Parts

Part Overview

The PC123Y23FP9F is an optoisolator with transistor output manufactured by SHARP/Socle Technology. This component provides galvanic isolation up to 5000Vrms with a single channel configuration in a 4-SMD surface mount package. The part is currently active in production status with substantial inventory availability (29,400 pcs). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range, particularly when the main part faces supply constraints or when alternative sourcing is required for procurement optimization.

Key Parameters

Parameter	Value
Isolation Voltage	5000Vrms
Number of Channels	1
Output Type	Transistor
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	400% @ 5mA
Rise / Fall Time	4µs, 3µs
Maximum Output Voltage	70V
Maximum Output Current / Channel	2.5mA
Forward Voltage (Vf)	1.2V
Maximum DC Forward Current	50mA
Vce Saturation (Max)	200mV
Operating Temperature Range	-30°C ~ 100°C
Package / Case	4-SMD, Gull Wing
Mounting Type	Surface Mount
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the PC123Y23FP9F is determined by strict equivalence across the following critical parameters:

Isolation voltage rating of 5000Vrms
Single channel configuration
Transistor output topology
4-SMD surface mount package with gull wing leads
Current transfer ratio range encompassing the minimum 50% specification
Rise and fall time characteristics of 4µs and 3µs
Maximum output voltage of 70V
Operating temperature range of -30°C to 100°C
Forward voltage and saturation characteristics compatible with the specified values

The HCPL-817-56CE meets all substitution criteria within these defined parameters. Substitution is valid only when all electrical and mechanical specifications remain within the allowable ranges for the application circuit.

Parameter Comparison

Parameter	PC123Y23FP9F	HCPL-817-56CE	Compatibility
Manufacturer	SHARP/Socle Technology	Broadcom Limited	Different manufacturer
Isolation Voltage	5000Vrms	5000Vrms	Equivalent
Number of Channels	1	1	Equivalent
Output Type	Transistor	Transistor	Equivalent
Current Transfer Ratio (Min)	50% @ 5mA	200% @ 5mA	Substitute exceeds minimum
Current Transfer Ratio (Max)	400% @ 5mA	400% @ 5mA	Equivalent
Rise / Fall Time	4µs, 3µs	4µs, 3µs	Equivalent
Maximum Output Voltage	70V	70V	Equivalent
Current - Output / Channel	2.5mA	50mA	Substitute exceeds specification
Forward Voltage (Vf)	1.2V	1.2V	Equivalent
Maximum DC Forward Current	50mA	50mA	Equivalent
Vce Saturation (Max)	200mV	200mV	Equivalent
Operating Temperature Range	-30°C ~ 100°C	-30°C ~ 100°C	Equivalent
Package / Case	4-SMD, Gull Wing	4-SMD, Gull Wing	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	RoHS Compliant	ROHS3 Compliant	Both compliant

Engineering Selection Recommendations

The HCPL-817-56CE qualifies as a direct substitute for the PC123Y23FP9F based on electrical parameter equivalence and mechanical compatibility. Both components maintain identical isolation voltage, channel configuration, output topology, and package specifications. The HCPL-817-56CE demonstrates higher current transfer ratio minimum (200% versus 50%) and greater maximum output current capability (50mA versus 2.5mA), both of which represent performance enhancements that do not compromise circuit compatibility.

Both parts maintain active product status and comply with RoHS requirements. The HCPL-817-56CE carries ROHS3 compliance and EAR99 ECCN classification. Selection between these parts should be based on availability, lead time, and procurement requirements, as electrical performance remains equivalent within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the HCPL-817-56CE replace the PC123Y23FP9F in existing designs?

A: Yes. Both components share identical isolation voltage (5000Vrms), channel count (1), output type (transistor), package configuration (4-SMD gull wing), and operating temperature range (-30°C to 100°C). The HCPL-817-56CE meets or exceeds all electrical specifications of the PC123Y23FP9F.

Q: What are the key differences between these parts?

A: The primary differences are manufacturer (SHARP/Socle Technology versus Broadcom Limited) and output current capability. The HCPL-817-56CE provides 50mA maximum output current compared to 2.5mA for the PC123Y23FP9F, and maintains a higher minimum current transfer ratio (200% versus 50%). These differences represent performance enhancements.

Q: Are the packages physically identical?

A: Both components use 4-SMD surface mount packages with gull wing lead configuration. PCB footprints and reflow soldering profiles are compatible.

Q: What compliance certifications apply to substitution?

A: The PC123Y23FP9F is RoHS Compliant. The HCPL-817-56CE is ROHS3 Compliant and REACH Unaffected. Both meet environmental compliance requirements for industrial applications.

Q: Does the higher output current of the HCPL-817-56CE affect circuit design?

A: The higher output current specification (50mA versus 2.5mA) represents increased capability and does not negatively impact existing circuit designs. Applications designed for the PC123Y23FP9F will operate within the HCPL-817-56CE specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message