REF200AUE4 Equivalent & Substitute Parts

Part Overview

The REF200AUE4 is a current mirror and current sink/source regulator IC manufactured by Texas Instruments, designed for precision current regulation applications. This component operates across a 2.5V to 40V input voltage range with ±0.25% accuracy and delivers 100µA output current in an 8-SOIC surface mount package.

The REF200AUE4 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this current mirror topology.

Substiute Parts

REF200AUE4

Texas InstrumentsIn Stock: 699REF200AUE4 Datasheet

Current PartRFQ

REF200AU/2K5

Texas InstrumentsIn Stock: 40391REF200AU/2K5 Datasheet

DirectRFQ

REF200AU

Texas InstrumentsIn Stock: 9612REF200AU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the REF200AUE4 are qualified based on strict electrical and mechanical parameter matching:

Qualifying Parameters for Substitution:

• Identical function (Current Mirror, Current Sink/Source)
• Matching accuracy specification (±0.25%)
• Identical input voltage range (2.5V ~ 40V)
• Identical output current rating (100µA)
• Identical operating temperature range (-25°C ~ 85°C)
• Identical package type (8-SOIC)
• Identical base product number (REF200)
• Matching compliance certifications (ROHS3, REACH Unaffected)

All identified substitutes meet these criteria and are manufactured by Texas Instruments under the REF200 product family. The primary distinction between substitutes is product status (active vs. obsolete) and packaging configuration (Cut Tape & Digi-Reel vs. Tube).

Parameter Comparison

Engineering Selection Recommendations

Both REF200AU/2K5 and REF200AU are direct functional equivalents to the obsolete REF200AUE4. Selection between these active alternatives should be based on packaging and supply requirements:

REF200AU/2K5 is supplied in Cut Tape (CT) and Digi-Reel® packaging with significantly higher inventory availability (40,335 units). This configuration is suitable for automated assembly processes and high-volume production environments.

REF200AU is supplied in Tube packaging with moderate inventory availability (9,558 units). This configuration is appropriate for lower-volume applications or manual assembly workflows.

Both substitutes maintain full compliance with ROHS3 and REACH requirements, ensuring regulatory alignment with the original REF200AUE4 specification. Electrical performance, thermal characteristics, and mechanical compatibility are identical across all three part numbers.

Frequently Asked Questions (FAQ)

Q: Can REF200AU/2K5 and REF200AU be used interchangeably with REF200AUE4?

A: Yes. Both parts are electrically and mechanically identical to REF200AUE4. The differences are limited to product status (active vs. obsolete) and packaging format (reel vs. tube). All three parts share identical electrical specifications, accuracy ratings, voltage ranges, and package dimensions.

Q: What is the primary reason to transition from REF200AUE4?

A: REF200AUE4 is classified as obsolete. REF200AU/2K5 and REF200AU are active products with ongoing manufacturer support and supply availability, ensuring long-term design sustainability.

Q: Does packaging format affect electrical performance?

A: No. Cut Tape (CT) & Digi-Reel® and Tube packaging formats contain identical die and internal circuitry. Packaging differences only impact handling, storage, and assembly process compatibility.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts maintain identical ROHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level (MSL) ratings. Regulatory and environmental certifications are equivalent.

Q: Which substitute should be selected for new designs?

A: For new designs, either REF200AU/2K5 or REF200AU is appropriate. REF200AU/2K5 is recommended for high-volume automated assembly due to reel packaging. REF200AU is suitable for lower-volume or manual assembly applications. Both are active products with stable long-term availability.