AP1186T5-15L-U Equivalent & Substitute Parts

Part Overview

The AP1186T5-15L-U is a linear voltage regulator IC manufactured by Diodes Incorporated, designed to deliver a fixed 1.5V output at 1.5A in a TO-220-5 package. This positive fixed output regulator integrates over-current and over-temperature protection, making it suitable for low-voltage power supply applications requiring thermal management and current limiting.

The AP1186T5-15L-U is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and redesign efforts.

Substiute Parts

AP1186T5-15L-U

Diodes IncorporatedIn Stock: 713AP1186T5-15L-U Datasheet

Current PartRFQ

AP1186T5-15L-U

Diodes IncorporatedIn Stock: 713AP1186T5-15L-U Datasheet

Parametric EquivalentRFQ

LT1963AET-1.5#06PBF

Analog Devices Inc.In Stock: 1025LT1963AET-1.5#06PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AP1186T5-15L-U is determined by the following critical parameters:

• Output Voltage: Fixed 1.5V output is mandatory
• Output Current: Minimum 1.5A capability required
• Package Type: TO-220-5 through-hole mounting
• Output Configuration: Positive fixed output
• Protection Features: Over-current and over-temperature protection required
• Compliance: ROHS3 compliance and REACH unaffected status

The LT1963AET-1.5#06PBF from Analog Devices Inc. meets all substitution criteria. Both parts share identical output voltage, current rating, package configuration, and protection feature sets. Differences in input voltage rating, dropout voltage, quiescent current, and operating temperature range do not preclude substitution when the application requirements fall within the LT1963AET-1.5#06PBF specifications.

Parameter Comparison

Engineering Selection Recommendations

The LT1963AET-1.5#06PBF is the qualified substitute for the discontinued AP1186T5-15L-U. Selection is based on:

• Functional Equivalence: Both parts deliver identical 1.5V fixed output at 1.5A in TO-220-5 packages with matching protection features
• Product Availability: The LT1963AET-1.5#06PBF maintains active product status with 1007 units in stock, ensuring supply chain continuity
• Regulatory Compliance: Both parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements
• Enhanced Features: The LT1963AET-1.5#06PBF includes reverse polarity protection and lower quiescent current (1.5 mA vs. 10 mA), providing additional circuit protection and improved efficiency

Applications operating within the LT1963AET-1.5#06PBF input voltage range (0V to 20V) and temperature range (-40°C to 125°C) can directly substitute this part without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the LT1963AET-1.5#06PBF directly replace the AP1186T5-15L-U without PCB modifications?

A: Yes. Both parts use identical TO-220-5 package pinouts and deliver the same 1.5V fixed output at 1.5A. No PCB layout changes are required for direct substitution.

Q: What are the key differences between these two parts?

A: The LT1963AET-1.5#06PBF offers higher maximum input voltage (20V vs. 16V), lower quiescent current (1.5 mA vs. 10 mA), additional reverse polarity protection, and active product status. The AP1186T5-15L-U provides lower dropout voltage (0.38V vs. 0.55V) and higher PSRR (70dB vs. 63dB).

Q: Is the LT1963AET-1.5#06PBF suitable for applications requiring the full 0°C to 150°C operating temperature range of the original part?

A: The LT1963AET-1.5#06PBF operates from -40°C to 125°C. Applications requiring junction temperatures above 125°C must verify alternative solutions. Applications within -40°C to 125°C are fully supported.

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

A: Both parts are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution.

Q: What is the impact of the higher dropout voltage in the LT1963AET-1.5#06PBF?

A: The LT1963AET-1.5#06PBF requires 0.55V headroom versus 0.38V for the original part. Applications with input voltages below 2.05V (1.5V output + 0.55V dropout) must verify adequate input voltage margin.