PS9303L-E3-AX Equivalent & Substitute Parts

Part Overview

The PS9303L-E3-AX is a logic output optoisolator manufactured by CEL, designed for high-speed digital isolation applications. This component provides 5000Vrms isolation with push-pull totem pole output configuration, supporting data rates up to 1Mbps with 15kV/µs common mode transient immunity. The part is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts maintain identical electrical and mechanical specifications while offering different product status and packaging configurations.

Substiute Parts

PS9303L-E3-AX

CELIn Stock: 2916PS9303L-E3-AX Datasheet

Current PartRFQ

PS9303L-AX

Renesas Electronics CorporationIn Stock: 1482PS9303L-AX Datasheet

DirectRFQ

PS9303L2-E3-AX

Renesas Electronics CorporationIn Stock: 3074PS9303L2-E3-AX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS9303L-E3-AX optoisolator is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters establish substitution validity:

Electrical Equivalence Criteria:

• Isolation voltage: 5000Vrms
• Number of channels: 1
• Output configuration: Push-Pull, Totem Pole
• Data rate: 1Mbps
• Common mode transient immunity: 15kV/µs minimum
• Output current: 25 mA per channel
• Propagation delay specifications: tpLH ≤ 500ns, tpHL ≤ 550ns
• Supply voltage range: 4.5V ~ 20V
• Operating temperature: -40°C ~ 100°C

Mechanical Equivalence Criteria:

• Package type: 6-SOIC (0.268", 6.80mm Width)
• Mounting type: Surface Mount
• Supplier device package: 6-SDIP Gull Wing

All identified substitute parts meet these criteria without exception. Variations in packaging format (Bulk versus Tape & Reel) and product status do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

PS9303L2-E3-AX is the primary recommended substitute for new designs and ongoing production. This part carries Active product status and is supplied in Tape & Reel packaging format, supporting high-volume manufacturing workflows. All electrical and mechanical parameters are identical to the PS9303L-E3-AX, ensuring direct functional equivalence with no circuit modifications required.

PS9303L-AX serves as an alternative substitute where Bulk packaging is acceptable. This part is classified as Not For New Designs but remains functionally equivalent across all specified parameters. Selection of this part is appropriate for maintenance, repair, and legacy system support where design freeze conditions apply.

Both substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating, and REACH unaffected status, matching the regulatory profile of the original PS9303L-E3-AX component.

Frequently Asked Questions (FAQ)

Q: Can PS9303L-AX and PS9303L2-E3-AX be used interchangeably with PS9303L-E3-AX?

A: Yes. Both substitute parts are electrically and mechanically equivalent to the PS9303L-E3-AX. All critical parameters including isolation voltage, output configuration, data rate, propagation delay, and package dimensions are identical. The differences in product status and packaging format do not affect functional compatibility.

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

A: PS9303L-AX is supplied in Bulk packaging and carries Not For New Designs status. PS9303L2-E3-AX is supplied in Tape & Reel format and carries Active product status. Both are functionally identical. Selection depends on packaging requirements and design phase constraints.

Q: Are there any circuit modifications required when substituting these parts?

A: No circuit modifications are required. The substitute parts maintain identical electrical specifications and package pinout, enabling direct replacement without design changes.

Q: What does "Not For New Designs" status mean for PS9303L-AX?

A: This status indicates the part is available for existing applications but should not be selected for new design projects. For new designs, PS9303L2-E3-AX with Active status is the appropriate choice.

Q: Are all three parts RoHS compliant?

A: Yes. PS9303L-E3-AX, PS9303L-AX, and PS9303L2-E3-AX are all ROHS3 compliant with unlimited moisture sensitivity rating and REACH unaffected status.

Q: What packaging format should be selected for high-volume production?

A: PS9303L2-E3-AX in Tape & Reel format is optimized for high-volume surface mount assembly operations. PS9303L-AX in Bulk packaging is suitable for lower-volume applications or manual assembly processes.

Q: Can these parts be used in applications requiring isolation voltages above 5000Vrms?

A: No. All three parts are rated for 5000Vrms isolation. Applications requiring higher isolation voltage require selection of a different optoisolator component.