PS9303L2-AX Equivalent & Substitute Parts

Part Overview

The PS9303L2-AX is a logic output optoisolator manufactured by CEL, part of the NEPOC series. This component provides galvanic isolation with 5000Vrms isolation voltage, push-pull totem pole output configuration, and 1Mbps data rate capability. The device is packaged in a 6-SDIP Gull Wing surface mount package and operates across -40°C to 100°C temperature range.

The PS9303L2-AX is currently discontinued at DiGi Electronics. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Alternative optoisolators within the same electrical and mechanical parameter space provide direct functional replacement or enhanced performance characteristics.

Key Parameters

Parameter	Value	Unit
Isolation Voltage	5000	Vrms
Number of Channels	1	—
Output Type	Push-Pull, Totem Pole	—
Common Mode Transient Immunity (Min)	15	kV/µs
Data Rate	1	Mbps
Output Current per Channel	25	mA
Propagation Delay tpLH / tpHL (Max)	500 / 550	ns
Voltage Supply Range	4.5 – 20	V
Operating Temperature	-40 to 100	°C
Package Type	6-SOIC (6.80mm Width)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitute parts for the PS9303L2-AX are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents (Renesas Electronics Corporation): Direct equivalents maintain identical electrical specifications across all critical parameters: 5000Vrms isolation voltage, 1 channel, push-pull totem pole output, 15kV/µs CMTI, 1Mbps data rate, 25mA output current, and 6-SOIC package footprint. These parts differ only in product status and packaging format (bulk versus tape & reel).

Similar Alternatives (Broadcom Limited): Similar alternatives provide functional substitution with enhanced performance in specific parameters while maintaining core isolation voltage and output topology. These parts feature higher CMTI (30kV/µs versus 15kV/µs), faster propagation delay (120/150ns versus 500/550ns), and increased output current (50mA versus 25mA). However, they operate at reduced isolation voltage (3750Vrms for ACPL-P484-000E) or maintain 5000Vrms isolation (ACPL-W484 series). All alternatives use 6-SOIC package footprint compatible with PS9303L2-AX PCB layouts.

Key Parameters Determining Substitution:

Isolation voltage (5000Vrms primary requirement)
Output configuration (push-pull totem pole)
Package footprint (6-SOIC, 6.80mm width)
Single channel architecture
Surface mount technology

Parameter Comparison

Parameter	PS9303L2-AX (Main)	PS9303L-AX	PS9303L-E3-AX	PS9303L2-E3-AX	ACPL-W484-000E	ACPL-W484-500E	ACPL-P484-000E
Manufacturer	CEL	Renesas	Renesas	Renesas	Broadcom	Broadcom	Broadcom
Isolation Voltage	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	3750Vrms
Channels	1	1	1	1	1	1	1
Output Type	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole
CMTI (Min)	15kV/µs	15kV/µs	15kV/µs	15kV/µs	30kV/µs	30kV/µs	30kV/µs
Data Rate	1Mbps	1Mbps	1Mbps	1Mbps	—	—	—
Output Current	25mA	25mA	25mA	25mA	50mA	50mA	50mA
Propagation Delay tpLH/tpHL (Max)	500/550ns	500/550ns	500/550ns	500/550ns	120/150ns	120/150ns	120/150ns
Supply Voltage Range	4.5–20V	4.5–20V	4.5–20V	4.5–20V	4.5–30V	4.5–30V	4.5–30V
Operating Temperature	-40 to 100°C	-40 to 100°C	-40 to 100°C	-40 to 100°C	-40 to 105°C	-40 to 105°C	-40 to 105°C
Package	6-SOIC	6-SOIC	6-SOIC	6-SOIC	6-SOIC	6-SOIC	6-SOIC
Product Status	Discontinued	Not For New Designs	Active	Active	Active	Active	Active
RoHS Compliance	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

PS9303L-E3-AX and PS9303L2-E3-AX are the primary recommended substitutes. Both are manufactured by Renesas Electronics Corporation and maintain 100% electrical compatibility with PS9303L2-AX across all critical parameters. Both parts carry Active product status, ensuring long-term availability and supply chain stability. PS9303L2-E3-AX is available in Tape & Reel packaging with 2977 pieces in stock, supporting high-volume production requirements. PS9303L-E3-AX is also available in Tape & Reel format with 2832 pieces in stock. Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements identical to the original part.

PS9303L-AX provides an alternative direct equivalent with identical electrical specifications but carries Not For New Designs status, limiting its suitability for new production programs despite 1444 pieces available in bulk packaging.

For Enhanced Performance Applications:

ACPL-W484-000E and ACPL-W484-500E (Broadcom Limited) maintain 5000Vrms isolation voltage while providing superior performance characteristics: 30kV/µs CMTI (double the original specification), 120/150ns propagation delay (significantly faster than 500/550ns), and 50mA output current (double the original 25mA). These parts support wider supply voltage range (4.5–30V versus 4.5–20V) and extended operating temperature to 105°C. Both are Active status with substantial inventory (1715 and 3675 pieces respectively). ACPL-W484-500E is available in Tape & Reel format, preferred for production environments.

ACPL-P484-000E (Broadcom Limited) operates at reduced isolation voltage (3750Vrms) and is suitable only for applications where 5000Vrms isolation is not a mandatory requirement. This part offers identical performance enhancements as the ACPL-W484 series but should not be selected for designs requiring full 5000Vrms isolation specification.

All substitute parts use identical 6-SOIC package footprint, enabling direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can PS9303L-E3-AX directly replace PS9303L2-AX without circuit modification?

A: Yes. PS9303L-E3-AX maintains identical electrical specifications across all parameters: 5000Vrms isolation, 1 channel, push-pull totem pole output, 15kV/µs CMTI, 1Mbps data rate, 25mA output current, and 6-SOIC package footprint. No circuit modifications are required. The part is pin-compatible and functionally equivalent.

Q: What is the difference between PS9303L-E3-AX and PS9303L2-E3-AX?

A: Both parts are electrically identical. The primary difference is product designation and manufacturer documentation. PS9303L2-E3-AX represents the current production variant with Active status. Both are available in Tape & Reel packaging and are ROHS3 compliant. PS9303L2-E3-AX is recommended for new designs due to its current production status.

Q: Why would I select ACPL-W484-500E over PS9303L-E3-AX?

A: ACPL-W484-500E provides enhanced performance specifications: 30kV/µs CMTI (versus 15kV/µs), 120/150ns propagation delay (versus 500/550ns), and 50mA output current (versus 25mA). Selection depends on application requirements. If the original 15kV/µs CMTI and 500/550ns propagation delay are sufficient, PS9303L-E3-AX provides cost-effective direct replacement. If higher noise immunity or faster switching is required, ACPL-W484-500E offers superior performance within the same package footprint.

Q: Is ACPL-P484-000E suitable as a substitute?

A: ACPL-P484-000E is suitable only if your application does not require 5000Vrms isolation voltage. This part operates at 3750Vrms isolation, which is 25% lower than PS9303L2-AX. If 5000Vrms isolation is a design requirement, ACPL-P484-000E is not appropriate. If isolation voltage can be reduced to 3750Vrms, this part offers enhanced CMTI and propagation delay performance.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use 6-SOIC package with 6.80mm width, identical to PS9303L2-AX. This ensures direct PCB footprint compatibility without layout modifications. Packaging format (bulk, tube, or tape & reel) varies by supplier and part number but does not affect electrical performance or physical dimensions.

Q: What is the inventory status for substitute parts?

A: PS9303L2-E3-AX: 2977 pieces (Tape & Reel, Active status). PS9303L-E3-AX: 2832 pieces (Tape & Reel, Active status). ACPL-W484-500E: 3675 pieces (Tape & Reel, Active status). ACPL-W484-000E: 1715 pieces (Tube, Active status). All parts are in stock and available for immediate procurement.

Q: Do all substitute parts meet RoHS and REACH compliance?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the compliance status of PS9303L2-AX. All parts are suitable for applications requiring regulatory compliance with RoHS Directive 3 and REACH regulations.

Q: What is the operating temperature range for substitute parts?

A: PS9303L-E3-AX and PS9303L2-E3-AX: -40°C to 100°C (identical to PS9303L2-AX). ACPL-W484-000E, ACPL-W484-500E, and ACPL-P484-000E: -40°C to 105°C (5°C extended upper limit). All parts support the original -40°C to 100°C operating range with margin.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message