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AP1184T5-50L-U Equivalent & Substitute Parts
Part Overview
The AP1184T5-50L-U is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 5V output at 4A in a TO-220-5 package. This component is classified as discontinued at DiGi Electronics, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The part delivers regulated 5V output with integrated over-current and over-temperature protection, suitable for applications requiring stable low-voltage power distribution in through-hole configurations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Output Voltage (Fixed) | 5V |
| Output Current | 4A |
| Input Voltage (Max) | 16V |
| Dropout Voltage (Max) | 0.85V @ 4A |
| Package Type | TO-220-5 |
| Mounting Type | Through Hole |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature Range | 0°C ~ 125°C (TJ) |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the AP1184T5-50L-U is determined by the following critical parameters:
- Fixed 5V output voltage matching
- TO-220-5 package compatibility for direct pin-compatible replacement
- Minimum 4A output current capability
- Through-hole mounting configuration
- Over-current and over-temperature protection features
- ROHS3 compliance for regulatory alignment
The MIC29501-5.0WT qualifies as a manufacturer-recommended substitute based on these criteria. While it exceeds the original part's specifications in certain areas (5A vs 4A output, 26V vs 16V input maximum, 0.6V vs 0.85V dropout), these enhancements provide superior performance margins without compromising compatibility or introducing design conflicts.
Parameter Comparison
| Parameter | AP1184T5-50L-U | MIC29501-5.0WT |
|---|---|---|
| Manufacturer | Diodes Incorporated | Microchip Technology |
| Output Voltage (Fixed) | 5V | 5V |
| Output Current | 4A | 5A |
| Input Voltage (Max) | 16V | 26V |
| Dropout Voltage (Max) | 0.85V @ 4A | 0.6V @ 5A |
| Package / Case | TO-220-5 | TO-220-5 |
| Mounting Type | Through Hole | Through Hole |
| Protection Features | Over Current, Over Temperature | Over Current, Over Temperature, Reverse Polarity, Transient Voltage |
| Operating Temperature Range | 0°C ~ 125°C (TJ) | -40°C ~ 125°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Discontinued at DiGi Electronics | Active |
Engineering Selection Recommendations
The MIC29501-5.0WT is the designated manufacturer-recommended substitute for the AP1184T5-50L-U. Selection of this alternative is supported by:
- Identical fixed 5V output voltage and TO-220-5 package configuration enabling direct PCB compatibility
- Active product status with established supply chain availability (2200 pcs in stock vs 907 pcs for the original part)
- ROHS3 compliance matching the original part's regulatory requirements
- Enhanced protection features (reverse polarity and transient voltage protection) providing additional circuit safeguarding
- Superior electrical performance characteristics (lower dropout voltage, higher input voltage rating, extended temperature range) that do not introduce design conflicts
The substitute part's higher current rating (5A vs 4A) and lower dropout voltage represent performance improvements suitable for applications originally designed around the AP1184T5-50L-U specifications.
Frequently Asked Questions (FAQ)
Q: Can the MIC29501-5.0WT be used as a direct replacement for the AP1184T5-50L-U?
A: Yes. Both parts share identical fixed 5V output voltage, TO-220-5 package configuration, and through-hole mounting. Pin compatibility is maintained, allowing direct PCB substitution without layout modifications.
Q: What are the key differences between these parts?
A: The MIC29501-5.0WT provides higher output current capability (5A vs 4A), lower dropout voltage (0.6V vs 0.85V), higher maximum input voltage (26V vs 16V), and extended temperature range (-40°C to 125°C vs 0°C to 125°C). Additional protection features include reverse polarity and transient voltage protection.
Q: Why is the AP1184T5-50L-U discontinued?
A: The part is listed as discontinued at DiGi Electronics. The MIC29501-5.0WT represents the active alternative with superior specifications and established supply availability.
Q: Are there any compatibility concerns when switching to the MIC29501-5.0WT?
A: No compatibility concerns exist for applications within the original AP1184T5-50L-U specifications. The substitute part's enhanced ratings provide additional design margin without introducing conflicts.
Q: Do both parts meet the same regulatory requirements?
A: Yes. Both the AP1184T5-50L-U and MIC29501-5.0WT are ROHS3 compliant and carry REACH Unaffected status, maintaining regulatory alignment for equivalent applications.
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