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UC382T-2 Equivalent & Substitute Parts
Part Overview
The UC382T-2 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. It delivers 3A output current in a TO-220-5 package with a fixed output voltage of 2.1V and maximum input voltage of 7.5V. The device includes integrated protection features for over-temperature, reverse polarity, and short-circuit conditions.
This part is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | UC382T-2 |
| Category | Power Management (PMIC) |
| Package / Case | TO-220-5 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage - Output (Fixed) | 2.1V |
| Voltage - Input (Max) | 7.5V |
| Current - Output | 3A |
| Voltage Dropout (Max) | 2.1V @ 3A |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | 0°C ~ 100°C |
| Mounting Type | Through Hole |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the UC382T-2 is determined by the following critical parameters:
- Package Compatibility: TO-220-5 through-hole mounting
- Output Current Rating: 3A minimum
- Input Voltage Range: Maximum 7.5V or greater
- Protection Features: Over-temperature, reverse polarity, and short-circuit protection
- Output Configuration: Positive polarity
- Operating Temperature Range: 0°C to 100°C or wider
- Regulatory Compliance: ROHS3 compliant
The UC382T-ADJ qualifies as a direct substitute based on these parameters. Both devices share identical package specifications, current ratings, input voltage limits, protection mechanisms, and compliance certifications. The key difference is output voltage configuration: UC382T-2 provides fixed 2.1V output, while UC382T-ADJ offers adjustable output from 1.2V to 6V, which encompasses the 2.1V requirement.
Parameter Comparison
| Parameter | UC382T-2 (Main Part) | UC382T-ADJ (Substitute) |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Package / Case | TO-220-5 | TO-220-5 |
| Mounting Type | Through Hole | Through Hole |
| Output Configuration | Positive | Positive |
| Current - Output | 3A | 3A |
| Voltage - Input (Max) | 7.5V | 7.5V |
| Voltage Dropout (Max) | 2.1V @ 3A | 2.1V @ 3A |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | 0°C ~ 100°C | 0°C ~ 100°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Output Type | Fixed (2.1V) | Adjustable (1.2V - 6V) |
Engineering Selection Recommendations
The UC382T-ADJ is the manufacturer-recommended substitute for the obsolete UC382T-2. Both devices are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters: package type, current capacity, input voltage rating, dropout voltage, protection features, and operating temperature range.
The UC382T-ADJ is currently in active production status, ensuring long-term availability and supply chain continuity. Both parts maintain ROHS3 compliance and identical regulatory certifications (REACH Unaffected, ECCN EAR99).
The primary design consideration is output voltage configuration. The UC382T-ADJ provides adjustable output capability (1.2V to 6V) compared to the fixed 2.1V output of the UC382T-2. For applications requiring the fixed 2.1V output, the UC382T-ADJ can be configured to deliver this voltage through external resistor networks, maintaining functional equivalence while leveraging an active, supported component.
Frequently Asked Questions (FAQ)
Q: Can UC382T-ADJ directly replace UC382T-2 without circuit modifications?
A: The UC382T-ADJ is pin-compatible and mechanically interchangeable in the TO-220-5 package. However, the UC382T-ADJ requires external resistor configuration to set output voltage. Direct substitution without circuit modification is not possible if fixed 2.1V output is required. Circuit design changes are necessary to establish the desired output voltage.
Q: What are the key compatibility factors between these parts?
A: Compatibility is ensured through matching package type (TO-220-5), current rating (3A), input voltage specification (7.5V maximum), dropout voltage (2.1V @ 3A), protection features (over-temperature, reverse polarity, short-circuit), and operating temperature range (0°C to 100°C).
Q: Why is UC382T-2 classified as obsolete?
A: The UC382T-2 is no longer in active production. The UC382T-ADJ provides equivalent functionality with the added flexibility of adjustable output voltage, making it the preferred active alternative.
Q: Are there any compliance or certification differences?
A: Both parts maintain identical compliance status: ROHS3 compliant, REACH Unaffected, and ECCN EAR99. No compliance barriers exist for substitution.
Q: What is the inventory status of the substitute part?
A: The UC382T-ADJ has 5134 pieces in stock as new original inventory, ensuring immediate availability for production requirements.
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