MIC5201-4.8BS TR Equivalent & Substitute Parts

Part Overview

The MIC5201-4.8BS TR is a linear voltage regulator IC from Microchip Technology designed for positive fixed output applications. This Surface Mount device delivers 150mA output current with a fixed 4.8V output and operates across an input voltage range up to 26V. The part is classified as obsolete, making identification of active equivalent substitutes essential for ongoing design support and procurement continuity.

Substiute Parts

MIC5201-4.8BS TR

Microchip TechnologyIn Stock: 703MIC5201-4.8BS TR Datasheet

Current PartRFQ

MIC5201-4.8YS-TR

Microchip TechnologyIn Stock: 5418MIC5201-4.8YS-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC5201-4.8BS TR is determined by the following critical parameters:

• Fixed output voltage of 4.8V
• Output current capability of 150mA
• Maximum input voltage rating of 26V
• Voltage dropout specification of 0.4V @ 150mA
• SOT-223-3 package configuration
• Identical protection feature set (Over Current, Over Temperature, Reverse Polarity)
• Quiescent current of 400 µA
• PSRR of 75dB (100Hz)

The MIC5201-4.8YS-TR meets all these electrical and mechanical requirements, with the primary distinction being product status and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The MIC5201-4.8YS-TR is the direct active equivalent for the obsolete MIC5201-4.8BS TR. Both devices share identical electrical specifications across all critical parameters: output voltage, current rating, input voltage range, dropout voltage, quiescent current, and protection features.

The MIC5201-4.8YS-TR offers two significant advantages: active product status ensuring long-term availability and ROHS3 compliance for regulatory requirements. The operating temperature range difference (-40°C ~ 85°C versus -40°C ~ 125°C) must be evaluated against application requirements. For applications operating within the -40°C ~ 85°C range, the substitute part provides full functional equivalence with improved compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the MIC5201-4.8YS-TR directly replace the MIC5201-4.8BS TR in existing designs?

A: Yes. Both parts are identical in electrical performance, output voltage, current rating, and package configuration. Pin-for-pin compatibility is maintained in the SOT-223-3 package.

Q: What is the significance of the operating temperature range difference?

A: The main part operates to 125°C junction temperature, while the substitute operates to 85°C. Applications requiring operation above 85°C junction temperature must retain the original part or identify alternative solutions. Most commercial and industrial applications operate within the 85°C specification.

Q: Does the RoHS3 compliance of the substitute part affect compatibility?

A: No. RoHS3 compliance is a material composition specification that does not alter electrical function or performance. It represents an improvement for applications subject to environmental regulations.

Q: Are there inventory considerations between these parts?

A: The MIC5201-4.8BS TR is obsolete with limited remaining stock. The MIC5201-4.8YS-TR is active with significantly higher availability, making it the preferred selection for new procurement and long-term supply chain planning.

Q: Is the SOT-223-3 package identical between both parts?

A: Yes. Both parts use the SOT-223-3 Surface Mount package with identical pinout and mechanical dimensions, ensuring direct PCB compatibility.