UP0.4UC-151-R Equivalent & Substitute Parts

Part Overview

The UP0.4UC-151-R is a 150 µH unshielded wirewound inductor manufactured by Eaton - Electronics Division, designed for surface mount applications with a current rating of 250 mA and maximum DC resistance of 2 Ohm. This component is classified as Active product status and is RoHS Compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the critical performance parameters: inductance value, current rating, DC resistance, package dimensions, and operating temperature range.

Substiute Parts

UP0.4UC-151-R

Eaton - Electronics DivisionIn Stock: 989UP0.4UC-151-R Datasheet

Current PartRFQ

74455215

Würth ElektronikIn Stock: 124174455215 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UP0.4UC-151-R are identified based on strict equivalence of the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value: 150 µH
• Inductance tolerance: ±20%
• Current rating: 250 mA minimum
• Current saturation (Isat): 270 mA minimum
• DC resistance: 2 Ohm maximum
• Self-resonant frequency: 6 MHz minimum
• Test frequency: 100 kHz

Mechanical Equivalence Criteria:

• Mounting type: Surface Mount
• Package format: Nonstandard (nonstandard package dimensions)
• Length: 0.260" (6.60mm)
• Width: 0.175" (4.45mm) maximum
• Height seated: 0.115" (2.92mm) maximum
• Shielding: Unshielded

Environmental & Compliance Criteria:

• Operating temperature range: -25°C to 85°C minimum
• Packaging: Tape & Reel (TR)
• RoHS compliance required
• Moisture sensitivity: MSL 1 (Unlimited)

The substitute part 74455215 (Würth Elektronik WE-PD4 series) meets all electrical and mechanical equivalence criteria with dimensional tolerances within acceptable limits for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: UP0.4UC-151-R (Eaton)

The UP0.4UC-151-R maintains Active product status with established supply chain availability (888 Pcs in stock). This component is RoHS Compliant and carries MSL 1 rating, indicating no moisture sensitivity constraints during storage and handling.

Substitute Part: 74455215 (Würth Elektronik WE-PD4)

The 74455215 is functionally equivalent for direct substitution in applications requiring 150 µH inductance at 250 mA current rating. This part is Active product status with higher inventory availability (1230 Pcs in stock) and ROHS3 Compliant certification. The operating temperature range (-40°C ~ 100°C) exceeds the primary part specification, providing extended thermal performance margin. Dimensional compatibility is confirmed within tolerance: length and width differences are 0.002" (0.05mm) and 0.001" (0.05mm) respectively, and height difference is 0.001" (0.02mm). Both parts are unshielded wirewound inductors with identical electrical specifications at the 100 kHz test frequency.

Selection Basis:

Component selection between UP0.4UC-151-R and 74455215 is determined by:

• Supply chain availability and lead time requirements
• Manufacturer qualification requirements in the design specification
• Inventory cost optimization
• Operating temperature margin requirements

Both parts satisfy equivalent electrical performance, mechanical fit, and regulatory compliance requirements for surface mount PCB assembly applications.

Frequently Asked Questions (FAQ)

Q1: Can 74455215 be used as a direct replacement for UP0.4UC-151-R in existing designs?

A: Yes. The 74455215 meets all electrical specifications (150 µH ±20%, 250 mA rating, 2 Ohm DCR maximum) and mechanical compatibility requirements (surface mount, nonstandard package, dimensions within tolerance). Both parts are unshielded wirewound inductors tested at 100 kHz with identical self-resonant frequency of 6 MHz.

Q2: What are the dimensional differences between these two parts?

A: Length is identical at 0.260" (6.60mm). Width differs by 0.002" (0.05mm): UP0.4UC-151-R is 0.175" (4.45mm) versus 74455215 at 0.173" (4.40mm). Height differs by 0.001" (0.02mm): UP0.4UC-151-R is 0.115" (2.92mm) versus 74455215 at 0.114" (2.90mm). These differences are within standard PCB layout tolerances for surface mount assembly.

Q3: Are there temperature range differences between the substitute parts?

A: Yes. UP0.4UC-151-R operates from -25°C to 85°C, while 74455215 operates from -40°C to 100°C. The substitute part provides extended low-temperature and high-temperature performance margins. For applications within the -25°C to 85°C range, both parts are functionally equivalent.

Q4: Do both parts have identical DC resistance specifications?

A: Yes. Both UP0.4UC-151-R and 74455215 specify 2 Ohm maximum DC resistance, ensuring equivalent power dissipation characteristics and circuit performance.

Q5: What is the saturation current specification for these inductors?

A: Both parts specify 270 mA saturation current (Isat), which exceeds the 250 mA rated current by 20 mA, providing saturation margin in the circuit design.

Q6: Are moisture sensitivity considerations different between these parts?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints. Standard handling procedures apply to both components.

Q7: What packaging format is used for both parts?

A: Both UP0.4UC-151-R and 74455215 are supplied in Tape & Reel (TR) format, suitable for automated pick-and-place assembly equipment.

Q8: Are both parts RoHS compliant?

A: Yes. UP0.4UC-151-R is RoHS Compliant, and 74455215 is ROHS3 Compliant. Both meet current RoHS directive requirements for lead-free and restricted substance compliance.

Q9: What is the inductance tolerance specification?

A: Both parts specify ±20% inductance tolerance at the 100 kHz test frequency, ensuring consistent circuit performance within the tolerance band.

Q10: Can these parts be used interchangeably in production?

A: Yes, provided the design specification does not mandate a specific manufacturer. Both parts meet identical electrical and mechanical requirements for surface mount PCB assembly. Qualification of the substitute part with your manufacturing and quality processes is recommended before production implementation.