PS2806-1-A Optoisolator

Part Overview

The PS2806-1-A is a 2.5kV isolation optoisolator with Darlington output configuration, designed for single-channel isolation applications. Manufactured by CEL in a 4-SOIC surface mount package, this component is currently discontinued at DiGi Electronics. Due to its discontinued status and limited ongoing availability, identifying compatible substitute parts is essential for design continuity and inventory management in production environments.

Substiute Parts

PS2806-1-A

CELIn Stock: 1119PS2806-1-A Datasheet

Current PartRFQ

PS2806-1-F3-A

Renesas Electronics CorporationIn Stock: 3266PS2806-1-F3-A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The PS2806-1-F3-A qualifies as a direct substitute based on the following critical parameters that define functional equivalence:

Core Isolation and Performance Parameters: Both parts maintain identical 2500Vrms isolation voltage, 1-channel configuration, and Darlington output topology. The current transfer ratio minimum of 200% @ 1mA, rise/fall times of 200µs, maximum output voltage of 40V, and output current of 90mA are identical across both parts.

Electrical Characteristics: Forward voltage (Vf) of 1.1V typical, maximum DC forward current of 50mA, and Vce saturation of 1V maximum are matched specifications. Both parts accept AC and DC input signals.

Operating Conditions: The operating temperature range of -55°C to 100°C is preserved in the substitute part, ensuring equivalent thermal performance.

Physical and Compliance Requirements: Both parts are surface mount devices with identical 4-SOIC package dimensions (0.173", 4.40mm width). RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity are maintained. ECCN classification (EAR99) and HTSUS code (8541.49.8000) remain consistent.

Key Differentiator: The substitute utilizes a 4-SSOP supplier device package variant within the same 4-SOIC case specification, representing a manufacturing variant of the same electrical and mechanical design.

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs: The PS2806-1-F3-A provides functional equivalence with identical electrical and mechanical specifications, supporting drop-in replacement in established applications. The transition from CEL to Renesas Electronics Corporation manufacturing maintains ROHS3 compliance and EAR99 export classification consistency.

Compliance Advantage: The substitute part's REACH Unaffected status represents an improvement in regulatory standing compared to the original part's REACH Affected classification, eliminating potential supply chain compliance documentation requirements.

Inventory and Supply Continuity: With 3224 units currently available from Renesas against the original part's discontinued status, the PS2806-1-F3-A addresses supply availability while preserving design intent through electrical and mechanical equivalence.

Frequently Asked Questions (FAQ)

Q: Can the PS2806-1-F3-A be used as a direct replacement for PS2806-1-A without circuit redesign? A: Yes. Both parts share identical isolation voltage (2500Vrms), channel count (1), output type (Darlington), current transfer ratio (200% @ 1mA), output voltage rating (40V), output current (90mA), and operating temperature range (-55°C to 100°C). The 4-SOIC package dimensions and pin configuration are equivalent, supporting direct substitution.

Q: What is the difference between the supplier device packages listed? A: The original part specifies 4-SOP packaging while the substitute lists 4-SSOP. Both designations refer to variants within the 4-SOIC standard with identical external dimensions (0.173", 4.40mm width). This represents a manufacturing classification difference with no functional impact.

Q: Does the REACH Unaffected status of the substitute part affect compatibility? A: No. The REACH Unaffected designation on the PS2806-1-F3-A eliminates regulatory documentation requirements during procurement but does not affect electrical or mechanical performance. This represents an improvement for supply chain management.

Q: Are there thermal or electrical performance differences between these parts? A: No. Both parts operate across identical temperature ranges (-55°C to 100°C) and share all specified electrical characteristics including rise/fall times (200µs), forward voltage (1.1V typical), and saturation voltage (1V maximum).

Q: Which part should be selected for new inventory purchases? A: The PS2806-1-F3-A is the appropriate selection due to its current availability (3224 units in stock) and REACH Unaffected compliance status, while the original PS2806-1-A is discontinued at DiGi Electronics.