HCPL-0454#560 Optoisolator Equivalent & Substitute Parts

Part Overview

The HCPL-0454#560 is a 3.75kV isolation optoisolator with transistor output manufactured by Broadcom Limited. This component is classified as discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates as a single-channel optoisolator in an 8-SOIC surface mount package, suitable for applications requiring galvanic isolation in DC input circuits with transistor output switching.

Key Parameters

Parameter	Value
Manufacturer	Broadcom Limited
Part Number	HCPL-0454#560
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	21% @ 16mA
Input Type	DC
Output Type	Transistor
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Operating Temperature	-55°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution for the HCPL-0454#560 is determined by the following critical parameters:

Isolation Voltage: Minimum 3750Vrms (equal or higher acceptable)
Number of Channels: 1 channel required
Output Type: Transistor output
Package: 8-SOIC form factor
Current Transfer Ratio: Minimum 21% @ 16mA
Output Current: 8mA per channel
Input Type: DC
Operating Temperature Range: -55°C ~ 100°C

Substitute parts are grouped into three categories:

Direct Manufacturer Equivalents (Broadcom HCPL-0454 series): Parts with identical electrical specifications and packaging, differing only in packaging format (Tape & Reel vs. bulk) or compliance status.

Parametric Equivalents (Broadcom HCPL-0454 series variants): Parts meeting all critical electrical parameters with identical package specifications.

Cross-Manufacturer Equivalent (Vishay SFH6343T): Alternative manufacturer part meeting or exceeding all critical parameters with compatible package form factor.

Parameter Comparison

Parameter	HCPL-0454#560	HCPL-0454-560E	HCPL-0454#500	HCPL-0454-500E	SFH6343T
Manufacturer	Broadcom	Broadcom	Broadcom	Broadcom	Vishay
Voltage - Isolation	3750Vrms	3750Vrms	3750Vrms	3750Vrms	4000Vrms
Number of Channels	1	1	1	1	1
Current Transfer Ratio (Min)	21% @ 16mA	21% @ 16mA	21% @ 16mA	21% @ 16mA	19% @ 16mA
Input Type	DC	DC	DC	DC	DC
Output Type	Transistor	Transistor	Transistor	Transistor	Transistor
Voltage - Output (Max)	20V	20V	20V	20V	25V
Current - Output / Channel	8mA	8mA	8mA	8mA	8mA
Voltage - Forward (Vf) (Typ)	1.5V	1.5V	1.5V	1.5V	1.6V
Current - DC Forward (If) (Max)	25mA	25mA	25mA	25mA	25mA
Operating Temperature	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Discontinued	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	Non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: HCPL-0454-500E

The HCPL-0454-500E is the preferred substitute for the discontinued HCPL-0454#560. This part maintains identical electrical specifications across all critical parameters: 3750Vrms isolation voltage, 21% minimum current transfer ratio, 8mA output current, and -55°C to 100°C operating range. The part is currently active in production status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. Packaging is available in Cut Tape and Digi-Reel format, supporting both prototype and production volume requirements.

Secondary Recommendation: HCPL-0454-560E

The HCPL-0454-560E provides direct electrical equivalence to the original part with identical specifications and active product status. This variant is available in Tape & Reel packaging and carries ROHS3 compliance certification. Selection of this part is appropriate when Tape & Reel packaging format is required for automated assembly processes.

Alternative Recommendation: SFH6343T

The SFH6343T (Vishay Semiconductor Opto Division) exceeds the electrical specifications of the HCPL-0454#560 across multiple parameters: 4000Vrms isolation voltage (vs. 3750Vrms), 25V maximum output voltage (vs. 20V), and current transfer ratio range of 19% to 50% (vs. 21% minimum). This part is suitable for applications requiring enhanced isolation performance or higher output voltage capability. The part is active in production with ROHS3 compliance and identical 8-SOIC package form factor.

Not Recommended: HCPL-0454#500

While the HCPL-0454#500 meets all electrical specifications, this part carries RoHS non-compliant status, matching the original discontinued part. For new designs or compliance-sensitive applications, this part should not be selected.

Frequently Asked Questions (FAQ)

Q: Can I use HCPL-0454-500E as a direct replacement for HCPL-0454#560?

A: Yes. The HCPL-0454-500E maintains identical electrical specifications: 3750Vrms isolation, 21% minimum current transfer ratio, 8mA output current, and -55°C to 100°C operating temperature. Both parts use the 8-SOIC package. The primary difference is packaging format (Cut Tape & Digi-Reel vs. bulk) and RoHS compliance status (ROHS3 vs. non-compliant).

Q: What is the difference between HCPL-0454-560E and HCPL-0454-500E?

A: Both parts are electrically identical with 3750Vrms isolation and 21% minimum current transfer ratio. The primary difference is packaging format: HCPL-0454-560E is supplied in Tape & Reel format, while HCPL-0454-500E is available in Cut Tape and Digi-Reel format. Both carry ROHS3 compliance.

Q: Is the SFH6343T compatible with the HCPL-0454#560 footprint?

A: Yes. The SFH6343T uses the same 8-SOIC (0.154", 3.90mm width) package form factor, ensuring PCB footprint compatibility. However, the SFH6343T exceeds the electrical specifications of the original part with 4000Vrms isolation (vs. 3750Vrms) and 25V maximum output voltage (vs. 20V).

Q: Why is the HCPL-0454#500 not recommended despite meeting electrical specifications?

A: The HCPL-0454#500 carries RoHS non-compliant status, identical to the discontinued original part. For new designs, procurement of RoHS-compliant alternatives (HCPL-0454-500E or HCPL-0454-560E) is preferred to ensure regulatory alignment and long-term supply chain viability.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: isolation voltage (minimum 3750Vrms), single-channel configuration, transistor output type, 8-SOIC package form factor, minimum 21% current transfer ratio at 16mA, 8mA output current per channel, DC input type, and -55°C to 100°C operating temperature range.

Q: Can I use the SFH6343T in a design originally specified for HCPL-0454#560?

A: Yes. The SFH6343T meets or exceeds all critical electrical parameters of the HCPL-0454#560 and uses the same package form factor. The higher isolation voltage (4000Vrms vs. 3750Vrms) and output voltage rating (25V vs. 20V) provide enhanced performance margins. No circuit modifications are required for pin-compatible substitution.

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