ACPL-K453-520E Equivalent & Substitute Parts

Part Overview

The ACPL-K453-520E is a high-voltage optoisolator with transistor output manufactured by Broadcom Limited. This component provides 5000Vrms isolation in a single-channel configuration, designed for applications requiring galvanic isolation with DC input and transistor output switching. The part is currently classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer	Broadcom Limited
Category	Optoisolators
Isolation Voltage	5000Vrms
Number of Channels	1
Output Type	Transistor
Input Type	DC
Current Transfer Ratio (Min)	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA
Turn On / Turn Off Time	200ns, 600ns
Output Voltage (Max)	20V
Output Current / Channel	8mA
Forward Voltage (Vf)	1.5V
DC Forward Current (Max)	25mA
Operating Temperature Range	-55°C to 100°C
Package / Case	8-SOIC (0.268", 6.81mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99

Substitute Part Grouping Explanation

The ACPL-K453-520E has two parametric equivalents within the ACPL-K453 base product family: ACPL-K453-500E and ACPL-K453-560E. Substitution is valid based on the following criteria:

Electrical Parameters (Identical Across All Parts):

Isolation voltage: 5000Vrms
Number of channels: 1
Output type: Transistor
Input type: DC
Current transfer ratio range: 19% to 50% @ 16mA
Turn on/off timing: 200ns, 600ns
Maximum output voltage: 20V
Output current per channel: 8mA
Forward voltage: 1.5V
Maximum DC forward current: 25mA
Operating temperature range: -55°C to 100°C

Mechanical Parameters (Identical Across All Parts):

Package: 8-SOIC (0.268", 6.81mm Width)
Mounting type: Surface Mount
Moisture sensitivity level: 1 (Unlimited)

Regulatory & Compliance (Identical Across All Parts):

REACH Status: REACH Unaffected
ECCN: EAR99

The substitute parts differ only in product status and packaging format, with ACPL-K453-500E and ACPL-K453-560E both classified as active products.

Parameter Comparison

Parameter	ACPL-K453-520E	ACPL-K453-500E	ACPL-K453-560E
Manufacturer	Broadcom Limited	Broadcom Limited	Broadcom Limited
Product Status	Obsolete	Active	Active
Isolation Voltage	5000Vrms	5000Vrms	5000Vrms
Number of Channels	1	1	1
Output Type	Transistor	Transistor	Transistor
Input Type	DC	DC	DC
Current Transfer Ratio (Min)	19% @ 16mA	19% @ 16mA	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA	50% @ 16mA	50% @ 16mA
Turn On / Turn Off Time	200ns, 600ns	200ns, 600ns	200ns, 600ns
Output Voltage (Max)	20V	20V	20V
Output Current / Channel	8mA	8mA	8mA
Forward Voltage (Vf)	1.5V	1.5V	1.5V
DC Forward Current (Max)	25mA	25mA	25mA
Operating Temperature Range	-55°C to 100°C	-55°C to 100°C	-55°C to 100°C
Package / Case	8-SOIC (0.268", 6.81mm Width)	8-SOIC (0.268", 6.81mm Width)	8-SOIC (0.268", 6.81mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

Both ACPL-K453-500E and ACPL-K453-560E are direct functional equivalents to the obsolete ACPL-K453-520E. Selection between the two active alternatives should be based on the following factors:

Product Availability: ACPL-K453-500E offers higher inventory availability (4083 units) compared to ACPL-K453-560E (912 units), making it the preferred choice for high-volume procurement requirements.

Compliance Status: Both substitute parts carry ROHS3 compliance certification, whereas the original ACPL-K453-520E does not specify RoHS status. This compliance improvement in the active alternatives supports modern manufacturing and environmental standards.

Packaging Format: Both substitutes are supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. The original part was supplied in bulk packaging.

Regulatory Alignment: All three parts maintain identical REACH and ECCN classifications, ensuring no regulatory complications in substitution.

Frequently Asked Questions (FAQ)

Q: Can ACPL-K453-500E or ACPL-K453-560E be used as direct replacements for ACPL-K453-520E in existing designs?

A: Yes. All three parts share identical electrical specifications including isolation voltage (5000Vrms), current transfer ratio (19-50% @ 16mA), timing characteristics (200ns/600ns), output voltage (20V max), and operating temperature range (-55°C to 100°C). The package footprint and mounting type are also identical (8-SOIC surface mount).

Q: What is the primary difference between the substitute parts?

A: The ACPL-K453-500E and ACPL-K453-560E are electrically and mechanically identical. The differences are product status (both active versus the obsolete original), packaging format (both supplied in Tape & Reel versus bulk), and inventory levels.

Q: Are there any compliance considerations when substituting these parts?

A: The substitute parts include ROHS3 compliance certification, which the original part does not specify. Both substitutes maintain the same REACH Unaffected and EAR99 ECCN classifications as the original, ensuring regulatory continuity.

Q: Does the Tape & Reel packaging of the substitute parts affect circuit board assembly?

A: No. Tape & Reel packaging is the standard format for automated surface mount assembly. The physical component dimensions and footprint remain identical to the original bulk-packaged part.

Q: Which substitute part should be selected for new designs?

A: ACPL-K453-500E is recommended due to superior inventory availability and active product status. Both parts are functionally equivalent and suitable for new designs requiring 5000Vrms isolation with single-channel transistor output.

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