AP139-20WG-7 Equivalent & Substitute Parts

Part Overview

The AP139-20WG-7 is a linear voltage regulator IC from Diodes Incorporated, classified as a Power Management (PMIC) component. This device delivers a fixed 2V output at 300mA in a compact SOT-25 surface mount package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain flexibility for applications requiring this voltage regulation topology.

Substiute Parts

AP139-20WG-7

Diodes IncorporatedIn Stock: 36061AP139-20WG-7 Datasheet

Current PartRFQ

AP7343D-20W5-7

Diodes IncorporatedIn Stock: 712AP7343D-20W5-7 Datasheet

MFR RecommendedRFQ

AP139-20WG-7

Diodes IncorporatedIn Stock: 36061AP139-20WG-7 Datasheet

Parametric EquivalentRFQ

AP139-20WL-7

Diodes IncorporatedIn Stock: 4482AP139-20WL-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP139-20WG-7 are classified into two categories based on electrical and mechanical compatibility:

MFR Recommended Substitute: AP7343D-20W5-7

• Shares identical output voltage (2V), output current (300mA), quiescent current (60 µA), and package type (SOT-25)
• Maintains same operating temperature range (-40°C ~ 85°C)
• Meets all RoHS3 and REACH compliance requirements
• Product status is Active, ensuring continued availability

Parametric Equivalents: AP139-20WL-7

• Identical electrical specifications to the main part (AP139-20WG-7)
• Differs only in packaging format: Cut Tape (CT) versus Tape & Reel (TR)
• Same base product number (AP139) with identical performance characteristics
• Product status is Active

Substitution is determined by matching: fixed output voltage, output current rating, input voltage maximum, quiescent current, package type (SOT-25), and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

For New Designs or Long-Term Supply Requirements: Select AP7343D-20W5-7 as the primary substitute. This part carries Active product status, ensuring sustained manufacturing and availability. It meets all electrical specifications required for 2V, 300mA regulation and maintains full compliance with ROHS3 and REACH standards. The maximum input voltage of 5.25V is suitable for applications operating within this constraint.

For Packaging Format Flexibility: AP139-20WL-7 provides an identical electrical alternative with Cut Tape packaging. This option is appropriate when component procurement processes accommodate individual unit handling rather than tape-and-reel quantities. Product status is Active, supporting continued supply.

For Existing Inventory Management: The main part AP139-20WG-7 remains available in substantial inventory (36,010 pcs). However, Last Time Buy status indicates this is the final production run. Transition planning to either substitute part is recommended for designs requiring extended production lifecycles.

Frequently Asked Questions (FAQ)

Q: Can AP7343D-20W5-7 directly replace AP139-20WG-7 in existing designs? A: Yes. Both parts deliver 2V at 300mA with identical quiescent current (60 µA), operating temperature range (-40°C ~ 85°C), and SOT-25 package. The input voltage maximum differs slightly (5.25V vs. 5.5V); verify your application's input voltage does not exceed 5.25V.

Q: What is the difference between AP139-20WG-7 and AP139-20WL-7? A: These parts are electrically identical. The difference is packaging format: AP139-20WG-7 is supplied in Tape & Reel (TR), while AP139-20WL-7 is supplied in Cut Tape (CT). Select based on your procurement and assembly process requirements.

Q: Why is AP139-20WG-7 marked as Last Time Buy? A: Last Time Buy status indicates Diodes Incorporated has ceased new production orders for this part number. Existing inventory is available, but no future manufacturing runs are planned. Transition to an Active substitute part is recommended for designs with extended production timelines.

Q: Are all substitute parts RoHS3 and REACH compliant? A: Yes. AP7343D-20W5-7 and AP139-20WL-7 are both ROHS3 Compliant and REACH Unaffected, matching the compliance profile of the main part.

Q: Can I use these parts interchangeably in high-volume production? A: Yes, provided your application's input voltage specification accommodates the maximum input voltage of the selected substitute. AP7343D-20W5-7 (5.25V max) and AP139-20WL-7 (5.5V max) are both suitable for high-volume surface mount assembly in SOT-25 packages.