KA723DTF Linear Voltage Regulator IC Equivalent & Substitute Parts

Part Overview

The KA723DTF is a linear voltage regulator IC manufactured by onsemi, designed for positive adjustable output applications with 150mA current capability in a 14-SOIC package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The KA723DTF operates with input voltages up to 40V and provides adjustable output from 2V to 37V, suitable for general-purpose voltage regulation applications requiring moderate current delivery.

Substiute Parts

KA723DTF

onsemiIn Stock: 862KA723DTF Datasheet

Current PartRFQ

UA723CD

Texas InstrumentsIn Stock: 1931UA723CD Datasheet

DirectRFQ

UA723CDR

Texas InstrumentsIn Stock: 9251UA723CDR Datasheet

DirectRFQ

UA723CNSR

Texas InstrumentsIn Stock: 4463UA723CNSR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the KA723DTF is determined by strict equivalence across the following critical parameters:

• Output configuration (Positive)
• Output type (Adjustable)
• Number of regulators (1)
• Maximum input voltage (40V)
• Output voltage range (2V to 37V minimum, 37V maximum)
• Output current capability (150mA)
• Package type (14-SOIC)
• Operating temperature range (0°C ~ 70°C)
• Control features (Current Limit)

The substitute parts identified are grouped into two categories: direct equivalents and similar equivalents. Direct equivalents maintain identical package dimensions and electrical specifications. Similar equivalents maintain electrical specifications but may have minor package dimension variations within the 14-SOIC family.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the KA723DTF, the UA723CD and UA723CDR from Texas Instruments are direct electrical and mechanical equivalents. Both parts maintain identical package dimensions (14-SOIC 0.154" width) and all critical electrical parameters. The UA723CD carries Active product status with ROHS3 compliance, making it suitable for new designs and ongoing production. The UA723CDR is designated Last Time Buy status, indicating limited future availability.

The UA723CNSR from Texas Instruments is electrically equivalent but features a wider 14-SOIC package (0.209" width). This part is Active and ROHS3 compliant. Package dimension differences may require PCB layout verification before implementation.

All substitute parts maintain REACH Unaffected status consistent with the original KA723DTF.

Frequently Asked Questions (FAQ)

Q: Can UA723CD, UA723CDR, and UA723CNSR be used interchangeably with KA723DTF?

A: UA723CD and UA723CDR are direct pin-for-pin and package-for-package equivalents. UA723CNSR is electrically equivalent but has a different package width (0.209" versus 0.154"), requiring PCB layout verification for footprint compatibility.

Q: What is the difference between UA723CD and UA723CDR?

A: Both parts are electrically and mechanically identical. The primary difference is product status: UA723CD is Active, while UA723CDR is Last Time Buy. Packaging differs (Tube versus Cut Tape), affecting supply chain and handling considerations.

Q: Are all substitute parts RoHS compliant?

A: Yes. UA723CD, UA723CDR, and UA723CNSR are all ROHS3 compliant. The original KA723DTF RoHS status was not specified in available documentation.

Q: Can I use UA723CNSR as a direct replacement on existing PCBs designed for KA723DTF?

A: UA723CNSR has a wider package body (0.209" versus 0.154"). Physical footprint compatibility must be verified against your PCB layout before implementation. Electrical functionality is equivalent.

Q: What is the current availability status of these substitutes?

A: UA723CD and UA723CNSR are Active products with ongoing availability. UA723CDR is Last Time Buy status, indicating limited future supply. For long-term production, UA723CD or UA723CNSR are recommended.

Q: Are there compliance or regulatory differences between the substitute parts?

A: All substitute parts maintain REACH Unaffected status. UA723CD, UA723CDR, and UA723CNSR are ROHS3 compliant, supporting modern regulatory requirements for electronic components.