PS2911-1-K-AX Equivalent & Substitute Parts

Part Overview

The PS2911-1-K-AX is a 2500Vrms optoisolator with transistor output for single-channel DC input applications requiring high isolation voltage. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines. Direct substitutes maintain identical electrical and mechanical specifications while offering continued availability and manufacturing support.

Substiute Parts

PS2911-1-K-AX

CELIn Stock: 1135PS2911-1-K-AX Datasheet

Current PartRFQ

PS2911-1-AX

Renesas Electronics CorporationIn Stock: 2243PS2911-1-AX Datasheet

DirectRFQ

PS2911-1-F3-AX

Renesas Electronics CorporationIn Stock: 20115PS2911-1-F3-AX Datasheet

DirectRFQ

PS2911-1-V-AX

Renesas Electronics CorporationIn Stock: 1519PS2911-1-V-AX Datasheet

DirectRFQ

PS2911-1-V-F3-AX

Renesas Electronics CorporationIn Stock: 4583PS2911-1-V-F3-AX Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The PS2911-1-K-AX from CEL is functionally substitutable with PS2911 series parts from Renesas Electronics Corporation that share the following critical parameters:

• 2500Vrms isolation voltage
• Single-channel transistor output configuration
• DC input type
• 4-SMD flat lead package (4-Mini-Flat)
• Maximum output voltage of 40V and 40mA output current
• Identical timing characteristics (40µs/120µs turn-on/turn-off, 5µs/10µs rise/fall)
• 300mV maximum Vce saturation voltage
• Operating temperature range of -55°C to 100°C
• ROHS3 compliance and MSL Level 1

Substitutes vary in packaging format (Strip, Cut Tape & Digi-Reel, or Tape & Reel) and Current Transfer Ratio minimum specification (100% versus 200%), representing manufacturing variants of the same base PS2911 design.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: PS2911-1-F3-AX

The PS2911-1-F3-AX offers the highest long-term viability as an Active product with 20,100 units in stock. Both Cut Tape and Digi-Reel packaging formats support production volumes from prototyping through full-scale manufacturing. ROHS3 compliance and MSL Level 1 rating maintain the environmental and handling characteristics of the original PS2911-1-K-AX.

Secondary Recommendation: PS2911-1-V-F3-AX

This variant provides equivalent functionality with Tape & Reel packaging optimized for high-volume automated assembly. The Active product status and 4,553-unit inventory support ongoing production programs. REACH Unaffected status offers regulatory advantage for international markets.

Alternative: PS2911-1-V-AX

The PS2911-1-V-AX in Tape & Reel format serves as a viable substitute with 1,428 units available. Active product status ensures long-term support. Selection of this variant depends on packaging compatibility with existing assembly processes.

Not Recommended: PS2911-1-AX

The Strip-packaged PS2911-1-AX carries "Not For New Designs" product status, limiting its suitability for new development despite adequate inventory.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between PS2911-1-K-AX and the Renesas PS2911 substitutes?

A: The PS2911-1-K-AX is discontinued. Direct substitutes from Renesas maintain the 2500Vrms isolation voltage, transistor output configuration, 4-SMD flat lead package, and all timing specifications. The main variations are packaging format and Current Transfer Ratio minimum specification.

Q: Can I substitute PS2911-1-AX (Strip packaging) for PS2911-1-K-AX?

A: Yes, electrically and mechanically equivalent substitution is possible. However, Strip packaging is suitable for lower-volume applications. For production designs, the Cut Tape or Tape & Reel variants (PS2911-1-F3-AX or PS2911-1-V-F3-AX) are preferred.

Q: Why do some substitutes specify 100% minimum Current Transfer Ratio while PS2911-1-K-AX specifies 200%?

A: Both specifications fall within the 400% maximum limit and maintain identical maximum performance. If your circuit design requires minimum 200% Current Transfer Ratio performance, the PS2911-1-K-AX specification must be maintained. Consult design documentation to confirm circuit requirements.

Q: What does "Active" product status mean for long-term availability?

A: Active products remain in current manufacturing and are approved for new designs. PS2911-1-F3-AX and PS2911-1-V-F3-AX maintain Active status, ensuring ongoing production support and parts availability.

Q: Are all listed substitutes RoHS3 compliant and MSL Level 1?

A: Yes. All listed substitutes maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the environmental and handling requirements of the original PS2911-1-K-AX.

Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging?

A: Both formats support automated assembly. Cut Tape & Digi-Reel provides flexibility for lower-volume runs, while Tape & Reel (standard reel format) is optimized for higher-volume production lines. Selection depends on assembly equipment compatibility.