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UP5-330-R Equivalent & Substitute Parts Reference
Part Overview
The UP5-330-R is a 33 µH unshielded wirewound surface mount inductor manufactured by Eaton - Electronics Division as part of the UNI-PAC™ 5 series. This component is rated for 3 A continuous current with a maximum DC resistance of 66 mOhm and operates across the temperature range of -25°C to 105°C. The part is currently active in production and RoHS compliant, making it suitable for modern electronic applications requiring fixed inductance in compact form factors.
Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances. The identification of alternative sources ensures supply chain flexibility and design continuity.
Substiute Parts
Key Parameters
| Parameter | Value | Unit | Significance for Substitution |
|---|---|---|---|
| Inductance | 33 | µH | Core electrical specification; must match exactly |
| Current Rating | 3 | A | Thermal and saturation performance; must meet or exceed |
| DC Resistance (DCR) | 66 | mOhm Max | Power loss and thermal characteristics; must not exceed |
| Current - Saturation (Isat) | 5.5 | A | Maximum usable current before inductance degradation; must meet or exceed |
| Shielding | Unshielded | — | EMI characteristics and board layout compatibility |
| Mounting Type | Surface Mount | — | Assembly process compatibility |
| Package Type | Nonstandard | — | Physical footprint and height constraints |
| Operating Temperature Range | -25°C to 105°C | — | Environmental performance envelope |
| RoHS Status | RoHS Compliant | — | Regulatory and environmental compliance |
Substitute Part Grouping Explanation
Substitution eligibility for the UP5-330-R is determined by strict adherence to the following electrical and mechanical criteria:
Electrical Parameters (Non-Negotiable):
- Inductance value must be 33 µH
- Current rating must be 3 A or greater
- DC resistance must not exceed 66 mOhm
- Saturation current must be 5.5 A or greater
- Shielding configuration must be unshielded
Mechanical Parameters (Non-Negotiable):
- Mounting type must be surface mount
- Package classification must be nonstandard
- Physical dimensions must accommodate the specified footprint and height envelope
- Inductance test frequency must be 100 kHz
Compliance Parameters:
- RoHS compliance status must be active (RoHS Compliant or ROHS3 Compliant)
- Moisture sensitivity level must be 1 (Unlimited)
- Product status must be active
The substitute part P0250.333NLT from Pulse Electronics meets all specified criteria and is classified as a direct equivalent.
Parameter Comparison
| Parameter | UP5-330-R (Eaton) | P0250.333NLT (Pulse Electronics) | Match Status |
|---|---|---|---|
| Inductance | 33 µH | 33 µH | Exact Match |
| Inductance Tolerance | ±20% | ±15% | Substitute Tighter |
| Current Rating | 3 A | 3 A | Exact Match |
| Current - Saturation (Isat) | 5.5 A | 5.5 A | Exact Match |
| DC Resistance (DCR) | 66 mOhm Max | 66 mOhm Max | Exact Match |
| Shielding | Unshielded | Unshielded | Exact Match |
| Operating Temperature Range | -25°C to 105°C | -40°C to 130°C | Substitute Wider |
| Mounting Type | Surface Mount | Surface Mount | Exact Match |
| Package Type | Nonstandard | Nonstandard | Exact Match |
| Size / Dimension (L x W) | 18.40 mm x 15.00 mm | 18.62 mm x 15.14 mm | Within Tolerance |
| Height - Seated (Max) | 7.50 mm | 7.36 mm | Within Tolerance |
| Inductance Frequency - Test | 100 kHz | 100 kHz | Exact Match |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Both Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Exact Match |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Exact Match |
Engineering Selection Recommendations
Primary Part: UP5-330-R (Eaton - Electronics Division)
The UP5-330-R remains the specified component for new designs and existing production runs where supply is available. This part carries active product status and full RoHS compliance certification. Current inventory of 757 pieces supports immediate procurement requirements.
Substitute Part: P0250.333NLT (Pulse Electronics)
The P0250.333NLT is qualified as a direct substitute when UP5-330-R availability is constrained. This part meets all electrical performance criteria with identical inductance, current rating, saturation current, and DC resistance specifications. The substitute exhibits a tighter inductance tolerance (±15% versus ±20%), which provides improved performance consistency. The extended operating temperature range (-40°C to 130°C versus -25°C to 105°C) offers additional environmental margin for applications requiring broader thermal performance.
Physical dimensions are within acceptable tolerance: length differential of 0.22 mm (18.62 mm versus 18.40 mm), width differential of 0.14 mm (15.14 mm versus 15.00 mm), and height differential of 0.14 mm (7.36 mm versus 7.50 mm). These variations remain within standard PCB layout and assembly process tolerances for nonstandard surface mount packages.
Both parts carry equivalent compliance certifications: RoHS compliance (RoHS3 for the substitute represents current regulatory alignment), MSL Level 1, and identical ECCN/HTSUS classifications. Tape & Reel packaging is standard for both parts, ensuring compatibility with automated assembly processes.
Inventory availability for the substitute is significantly higher at 7,658 pieces, supporting extended production schedules and supply chain resilience.
Frequently Asked Questions (FAQ)
Q: Can P0250.333NLT be used as a direct replacement for UP5-330-R in existing designs?
A: Yes. The P0250.333NLT meets all electrical and mechanical specifications required for direct substitution. Inductance value, current rating, saturation current, and DC resistance are identical. Physical dimensions are within standard assembly tolerances. No circuit redesign or PCB layout modification is required.
Q: What is the significance of the tighter inductance tolerance on the substitute part?
A: The P0250.333NLT specifies ±15% inductance tolerance compared to ±20% for the UP5-330-R. This tighter tolerance reduces inductance variation across the production batch, resulting in improved circuit performance consistency and reduced tuning requirements in applications sensitive to inductance drift.
Q: Are there any thermal performance differences between these parts?
A: Both parts are rated for identical continuous current (3 A) and saturation current (5.5 A) with matching DC resistance (66 mOhm max). The substitute part supports a wider operating temperature range (-40°C to 130°C versus -25°C to 105°C), providing additional thermal margin for extreme environment applications. Within the original part's specified range (-25°C to 105°C), thermal performance is equivalent.
Q: Do the physical dimension differences affect PCB layout?
A: The dimensional variations are minimal: length +0.22 mm, width +0.14 mm, height -0.14 mm. These differences fall within standard PCB design tolerances for nonstandard surface mount packages and do not require layout modification. Footprint compatibility is maintained.
Q: Are both parts suitable for automated assembly?
A: Yes. Both parts are supplied in Tape & Reel (TR) packaging and are classified as surface mount components. Assembly process parameters remain unchanged between parts.
Q: What is the compliance status difference between RoHS and ROHS3?
A: Both certifications indicate lead-free, halogen-free compliance with current environmental regulations. ROHS3 represents the current regulatory standard. Both parts are fully compliant with modern procurement requirements. No functional or performance difference exists between the certifications for this component category.
Q: Should I verify compatibility before implementing the substitute?
A: Verification is not required from an electrical or mechanical standpoint, as all parameters are specified and matched. However, standard engineering practice recommends confirming part availability, lead time, and cost impact with your supplier before transitioning production.
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