HCPL0501R1 Equivalent & Substitute Parts

Part Overview

The HCPL0501R1 is a single-channel optoisolator with transistor base output manufactured by onsemi, rated for 2500Vrms isolation voltage. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The HCPL0501R1 operates across the industrial temperature range of -40°C to 85°C and is packaged in 8-SOIC surface mount configuration.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL0501R1
Manufacturer	onsemi
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	2500Vrms
Current Transfer Ratio (Min)	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA
Turn On / Turn Off Time (Typ)	450ns, 300ns
Output Type	Transistor with Base
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.45V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the HCPL0501R1 is determined by the following critical parameters:

Isolation Voltage: 2500Vrms minimum
Number of Channels: 1 channel
Output Type: Transistor with Base output
Package: 8-SOIC surface mount
Current Transfer Ratio: 19% minimum @ 16mA
Operating Temperature Range: -40°C to 85°C minimum
Input Type: DC

Substitute parts are grouped into three categories based on their relationship to the main part:

Parametric Equivalents maintain identical electrical specifications and output type, differing only in product status (active vs. obsolete) or packaging format (Tape & Reel vs. bulk).

Similar Substitutes meet the core isolation voltage, channel count, and package requirements but may have minor variations in output type classification or turn-on/turn-off timing.

Direct Substitutes provide enhanced specifications (higher isolation voltage) while maintaining compatibility with the same package footprint and base electrical performance.

Parameter Comparison

Parameter	HCPL0501R1	HCPL0501R2	HCPL0501R2V	HCPL0453	HCPL-0501-500E
Manufacturer	onsemi	onsemi	Fairchild Semiconductor	Fairchild Semiconductor	Broadcom Limited
Product Status	Obsolete	Active	Active	Active	Active
Number of Channels	1	1	1	1	1
Voltage - Isolation	2500Vrms	2500Vrms	2500Vrms	2500Vrms	3750Vrms
Current Transfer Ratio (Min)	19% @ 16mA	19% @ 16mA	19% @ 16mA	19% @ 16mA	15% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA	50% @ 16mA	50% @ 16mA	50% @ 16mA	Not specified
Turn On / Turn Off Time (Typ)	450ns, 300ns	450ns, 300ns	450ns, 300ns	450ns, 300ns	200ns, 600ns
Output Type	Transistor with Base	Transistor with Base	Transistor with Base	Transistor	Transistor with Base
Voltage - Output (Max)	20V	20V	20V	20V	20V
Current - Output / Channel	8mA	8mA	8mA	8mA	8mA
Voltage - Forward (Vf) (Typ)	1.45V	1.45V	1.45V	1.45V	1.5V
Current - DC Forward (If) (Max)	25mA	25mA	25mA	25mA	25mA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	Not specified	ROHS3 Compliant	Not specified	Not specified	ROHS3 Compliant

Engineering Selection Recommendations

HCPL0501R2 (onsemi) is the primary parametric equivalent for the HCPL0501R1. Both parts share identical electrical specifications, isolation voltage, and output type. The HCPL0501R2 is active in production and available in Tape & Reel packaging, making it the direct replacement for new designs and production continuity.

HCPL0501R2V (Fairchild Semiconductor) provides an alternative parametric equivalent with identical electrical performance. This part is active and suitable for applications where Fairchild sourcing is preferred or required by supply chain constraints.

HCPL0453 (Fairchild Semiconductor) is a similar substitute that meets the core isolation voltage, channel count, and package requirements. The primary difference is output type classification (Transistor vs. Transistor with Base), which may affect circuit compatibility depending on base drive requirements in the application.

HCPL-0501-500E (Broadcom Limited) is a direct substitute offering enhanced isolation voltage (3750Vrms vs. 2500Vrms) while maintaining the same package footprint and base electrical performance. This part is active and ROHS3 compliant. The extended operating temperature range (-55°C to 100°C) provides additional thermal margin. The lower minimum current transfer ratio (15% vs. 19%) and different turn-on/turn-off timing (200ns/600ns vs. 450ns/300ns) must be evaluated for specific circuit timing requirements.

Frequently Asked Questions (FAQ)

Q: Can HCPL0501R2 directly replace HCPL0501R1 in existing designs?

A: Yes. HCPL0501R2 is a parametric equivalent with identical isolation voltage (2500Vrms), current transfer ratio (19-50% @ 16mA), output type (Transistor with Base), and package (8-SOIC). The only differences are product status (active vs. obsolete) and packaging format (Tape & Reel vs. bulk).

Q: What is the difference between HCPL0453 and HCPL0501R1?

A: HCPL0453 meets the same isolation voltage, channel count, and package requirements. The output type is classified as Transistor rather than Transistor with Base. This distinction may affect base drive circuit design. All other electrical parameters, including current transfer ratio and timing, are identical.

Q: When should HCPL-0501-500E be selected over HCPL0501R2?

A: HCPL-0501-500E provides higher isolation voltage (3750Vrms vs. 2500Vrms) and extended operating temperature range (-55°C to 100°C vs. -40°C to 85°C). Select this part when applications require enhanced isolation margin or operation beyond the standard temperature range. Note that turn-on/turn-off timing differs (200ns/600ns vs. 450ns/300ns), requiring circuit timing verification.

Q: Are all substitute parts available in 8-SOIC package?

A: Yes. All listed substitute parts are packaged in 8-SOIC (0.154", 3.90mm Width) surface mount configuration, ensuring PCB footprint compatibility with HCPL0501R1 designs.

Q: What compliance certifications apply to these substitute parts?

A: HCPL0501R2 and HCPL-0501-500E are ROHS3 compliant. All parts listed carry REACH Unaffected status and EAR99 ECCN classification. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts.

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