AP130-33RL-7 Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The AP130-33RL-7 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 3.3V output at 300mA in SC-59 surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The AP130-33RL-7 provides regulated power management in compact form factor with integrated protection features including over-current, over-temperature, and short-circuit protection.

Substiute Parts

AP130-33RL-7

Diodes IncorporatedIn Stock: 3397AP130-33RL-7 Datasheet

Current PartRFQ

AP130-33RG-7

Diodes IncorporatedIn Stock: 1300AP130-33RG-7 Datasheet

DirectRFQ

AP130-33SAG-7

Diodes IncorporatedIn Stock: 4257AP130-33SAG-7 Datasheet

Parametric EquivalentRFQ

AP130-33WG-7

Diodes IncorporatedIn Stock: 9333AP130-33WG-7 Datasheet

Parametric EquivalentRFQ

RT9198-33GV

Richtek USA Inc.In Stock: 913RT9198-33GV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AP130-33RL-7 is determined by the following critical parameters: fixed 3.3V output voltage, 300mA output current capability, maximum 5.5V input voltage, surface mount packaging compatibility, and protection feature set. Substitute parts are grouped into two categories based on substitution type:

Direct Manufacturer Substitutes (Diodes Incorporated AP130 Series): Parts AP130-33RG-7, AP130-33SAG-7, and AP130-33WG-7 maintain identical electrical specifications and base product number while differing in packaging configuration (Tape & Reel vs. bulk) and supplier device package designation (SC-59R vs. SOT-23-3 vs. SC-59-3). These parts are functionally equivalent with matching voltage, current, dropout, and protection characteristics.

Manufacturer Recommended Substitute (Cross-Manufacturer): Part RT9198-33GV from Richtek USA Inc. provides parametric equivalence with identical 3.3V output and 300mA current rating. This part offers improved specifications in dropout voltage (0.33V vs. 0.5V) and extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C), with the trade-off of slightly higher quiescent current (130 µA vs. 100 µA) and additional Enable control feature.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of obsolete AP130-33RL-7 units, select from the active Diodes Incorporated AP130 series substitutes: AP130-33RG-7, AP130-33SAG-7, or AP130-33WG-7. All three maintain identical electrical performance and ROHS3 compliance. Selection among these three depends on packaging requirements and moisture sensitivity tolerance. AP130-33SAG-7 offers MSL-1 rating (unlimited moisture exposure) matching the original part, while AP130-33RG-7 and AP130-33WG-7 carry MSL-3 ratings requiring controlled storage conditions.

For applications requiring extended operating temperature range or improved dropout voltage performance, RT9198-33GV from Richtek USA Inc. provides parametric equivalence with superior thermal specifications. This part is suitable for designs operating above 85°C or requiring lower power dissipation from reduced dropout voltage. The addition of Enable control feature in RT9198-33GV provides enhanced design flexibility for power sequencing applications.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original AP130-33RL-7 specification.

Frequently Asked Questions (FAQ)

Q: Can AP130-33RG-7, AP130-33SAG-7, and AP130-33WG-7 be used interchangeably with AP130-33RL-7?

A: Yes, these three parts are direct electrical equivalents with identical voltage output (3.3V), current rating (300mA), dropout voltage (0.5V @ 300mA), and protection features. Differences exist only in packaging format (Tape & Reel vs. bulk) and supplier device package designation. PCB layout compatibility depends on matching the specific package type (SC-59R, SOT-23-3, or SC-59-3) to your design.

Q: What is the difference between SC-59R, SOT-23-3, and SC-59-3 packages?

A: SC-59R, SOT-23-3, and SC-59-3 are equivalent three-pin surface mount packages with identical pinout and electrical performance. The designations reflect different supplier packaging standards. Verify your PCB footprint matches the specific package variant selected. All three packages are compatible with standard surface mount assembly processes.

Q: Is RT9198-33GV a direct replacement for AP130-33RL-7?

A: RT9198-33GV is a parametric equivalent, not a direct replacement. It provides identical 3.3V output and 300mA current capability with improved dropout voltage (0.33V vs. 0.5V) and extended temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C). The addition of Enable control feature requires circuit design verification to ensure compatibility with your application. Pin configuration must be verified against your PCB design.

Q: What does MSL-1 vs. MSL-3 rating mean for component selection?

A: MSL (Moisture Sensitivity Level) indicates storage and handling requirements. MSL-1 parts (AP130-33RL-7 and AP130-33SAG-7) have unlimited shelf life without moisture control. MSL-3 parts (AP130-33RG-7 and AP130-33WG-7) require controlled storage at specified humidity levels and have 168-hour floor life after moisture exposure. Select MSL-1 rated parts for applications with less stringent inventory management or extended storage periods.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts including AP130-33RG-7, AP130-33SAG-7, AP130-33WG-7, and RT9198-33GV are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original AP130-33RL-7.