EL0452(TA) Equivalent & Substitute Parts

Part Overview

The EL0452(TA) is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides 3750Vrms isolation voltage in a single-channel configuration with 8-SOP surface mount packaging. The part is currently active in production status with 818 pieces in stock inventory.

Equivalent and substitute parts are identified when design requirements permit component interchange based on matching electrical characteristics, isolation ratings, output configurations, and mechanical compatibility. Substitute optoisolators in this category maintain functional equivalence when isolation voltage, channel count, output type, and package form factor align with application specifications.

Key Parameters

Parameter	Value
Isolation Voltage	3750Vrms
Number of Channels	1
Output Type	Transistor
Current Transfer Ratio (Min)	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA
Turn On / Turn Off Time (Max)	800ns, 800ns
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.5V
Current - DC Forward (If) (Max)	25mA
Operating Temperature Range	-55°C ~ 100°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute optoisolators for the EL0452(TA) are classified into two categories based on electrical and mechanical compatibility:

Direct Manufacturer Substitutes (Broadcom HCPL Series): Parts HCPL-0452-000E, HCPL-0452-500E, HCPL-0453, HCPL-0453-000E, HCPL-0453-500E, and HCPL-0453-560E maintain identical isolation voltage (3750Vrms), single-channel transistor output configuration, and 8-SOIC package form factor. These parts differ in packaging format (Tube, Cut Tape & Digi-Reel®, or Tape & Reel) and Current Transfer Ratio specifications. The HCPL-0452 and HCPL-0453 base product numbers represent functionally equivalent device families with the same electrical performance envelope.

Parametric Equivalent (Isocom ICPL0452SMT&R): The ICPL0452SMT&R from Isocom Components 2004 LTD matches the EL0452(TA) in isolation voltage, channel count, output type, and Current Transfer Ratio range (19% to 50% @ 16mA). This part provides electrical equivalence with identical turn-on/turn-off timing characteristics (800ns maximum).

Substitution eligibility is determined by:

Isolation voltage: 3750Vrms (required)
Number of channels: 1 (required)
Output type: Transistor (required)
Package / Case: 8-SOIC (0.154", 3.90mm Width) (required)
Current Transfer Ratio compatibility with application requirements
Turn-on/turn-off timing requirements

Parameter Comparison

Parameter	EL0452(TA) Everlight	HCPL-0452-000E Broadcom	HCPL-0452-500E Broadcom	HCPL-0453 Broadcom	HCPL-0453-000E Broadcom	HCPL-0453-500E Broadcom	HCPL-0453-560E Broadcom	ICPL0452SMT&R Isocom
Isolation Voltage	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms
Number of Channels	1	1	1	1	1	1	1	1
Output Type	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor
Current Transfer Ratio (Min)	19% @ 16mA	15% @ 16mA	15% @ 16mA	15% @ 16mA	15% @ 16mA	15% @ 16mA	15% @ 16mA	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	50% @ 16mA
Turn On / Turn Off Time (Max)	800ns, 800ns	1µs, 1µs	1µs, 1µs	1µs, 1µs	1µs, 1µs	1µs, 1µs	1µs, 1µs	800ns, 800ns
Voltage - Output (Max)	20V	20V	20V	20V	20V	20V	20V	20V
Current - Output / Channel	8mA	8mA	8mA	8mA	8mA	8mA	8mA	8mA
Voltage - Forward (Vf) (Typ)	1.5V	1.5V	1.5V	1.5V	1.5V	1.5V	1.5V	1.5V
Current - DC Forward (If) (Max)	25mA	25mA	25mA	25mA	25mA	25mA	25mA	25mA
Operating Temperature Range	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-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 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)	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	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

HCPL-0452-000E (Broadcom, Tube Packaging): This substitute maintains full electrical compatibility with identical isolation voltage and output specifications. Current Transfer Ratio minimum of 15% is lower than the EL0452(TA) specification of 19%, which may impact applications requiring higher gain margins. Turn-on/turn-off timing of 1µs maximum is slower than the 800ns specification of the primary part. ROHS3 compliant. Suitable for applications where timing margin exists and lower Current Transfer Ratio is acceptable.

HCPL-0452-500E (Broadcom, Cut Tape & Digi-Reel®): Electrically equivalent to HCPL-0452-000E with identical Current Transfer Ratio and timing specifications. Packaging format is Cut Tape & Digi-Reel® with 18,600 pieces in stock inventory. ROHS3 compliant. Recommended for high-volume production requiring tape-and-reel format with extended availability.

HCPL-0453 (Broadcom, Unspecified Packaging): Functionally equivalent to HCPL-0452 series with identical electrical parameters. RoHS non-compliant status restricts use in applications requiring RoHS3 compliance. Not recommended for new designs requiring environmental compliance certification.

HCPL-0453-000E (Broadcom, Tube Packaging): Electrically equivalent to HCPL-0452-000E with 15% minimum Current Transfer Ratio and 1µs timing. ROHS3 compliant with 2,202 pieces in stock. Suitable for applications accepting lower Current Transfer Ratio specifications.

HCPL-0453-500E (Broadcom, Cut Tape & Digi-Reel®): Electrically equivalent to HCPL-0453-000E with highest inventory availability at 35,865 pieces. ROHS3 compliant. Recommended for high-volume applications where tape-and-reel packaging and extended stock availability are required.

HCPL-0453-560E (Broadcom, Tape & Reel): Electrically equivalent to HCPL-0453 series with ROHS3 compliance and 3,621 pieces in stock. Tape & Reel packaging matches the EL0452(TA) format. Suitable for production environments using standard reel-based component handling.

ICPL0452SMT&R (Isocom Components 2004 LTD, Tape & Reel): Provides closest electrical match to EL0452(TA) with identical Current Transfer Ratio range (19% to 50% @ 16mA) and turn-on/turn-off timing (800ns maximum). ROHS3 compliant with 1,837 pieces in stock. Recommended for applications requiring matched Current Transfer Ratio and timing specifications with alternative manufacturer sourcing.

Frequently Asked Questions (FAQ)

Q: Can HCPL-0452-000E directly replace EL0452(TA) in existing designs?

A: HCPL-0452-000E maintains identical isolation voltage (3750Vrms), channel count (1), output type (Transistor), and package form factor (8-SOIC). However, the Current Transfer Ratio minimum is 15% compared to 19% for EL0452(TA), and turn-on/turn-off timing is 1µs versus 800ns. Substitution is valid only if the application design accommodates lower Current Transfer Ratio and slower switching response.

Q: What is the difference between HCPL-0452 and HCPL-0453 product families?

A: Both HCPL-0452 and HCPL-0453 base product numbers represent functionally equivalent optoisolator families with identical electrical performance specifications. The suffix designations (-000E, -500E, -560E) indicate packaging format and RoHS compliance status. Selection between these families is determined by packaging requirements and compliance certifications rather than electrical performance.

Q: Which substitute part has the fastest switching response?

A: ICPL0452SMT&R from Isocom and the primary EL0452(TA) both specify 800ns maximum turn-on and turn-off time. All Broadcom HCPL series substitutes specify 1µs maximum timing. For applications requiring 800ns response, ICPL0452SMT&R is the only substitute option.

Q: Are all substitute parts RoHS3 compliant?

A: HCPL-0453 (without suffix designation) is RoHS non-compliant. All other substitutes including HCPL-0452-000E, HCPL-0452-500E, HCPL-0453-000E, HCPL-0453-500E, HCPL-0453-560E, and ICPL0452SMT&R are ROHS3 compliant. For applications requiring environmental compliance certification, avoid HCPL-0453 without suffix.

Q: What packaging formats are available for substitute parts?

A: Substitute optoisolators are available in Tube (HCPL-0452-000E, HCPL-0453-000E), Cut Tape & Digi-Reel® (HCPL-0452-500E, HCPL-0453-500E), and Tape & Reel (HCPL-0453-560E, ICPL0452SMT&R) formats. The EL0452(TA) is supplied in Tape & Reel format. Packaging selection depends on production equipment compatibility and component handling requirements.

Q: Does Current Transfer Ratio affect circuit performance?

A: Current Transfer Ratio determines the output current magnitude relative to input current. EL0452(TA) and ICPL0452SMT&R specify 19% to 50% range, while Broadcom HCPL series specify 15% minimum. Lower Current Transfer Ratio reduces output drive capability. Applications with tight output current margins require verification that 15% minimum specification is acceptable.

Q: Can substitute parts be mixed in the same production batch?

A: All substitute parts maintain identical isolation voltage, channel count, output type, and 8-SOIC package form factor. Electrical performance differences in Current Transfer Ratio and timing must be evaluated against circuit design margins. If design specifications accommodate the parameter ranges of all selected substitutes, mixed sourcing is permissible. Documentation of substitution rationale is required for traceability.

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