74455033 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 74455033 is a 3.3 µH unshielded drum core wirewound inductor rated for 2 A continuous current with 80 mOhm maximum DC resistance. This component is designed for surface mount applications in the WE-PD4 series and maintains active product status with full RoHS3 compliance. Equivalent parts are identified when identical electrical specifications and mechanical compatibility are maintained across the same inductance value, current rating, and package dimensions.

Substiute Parts

74455033

Würth ElektronikIn Stock: 230774455033 Datasheet

Current PartRFQ

P0770.332NLT

Pulse ElectronicsIn Stock: 2616P0770.332NLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74455033 is determined by strict equivalence across the following critical parameters:

• Inductance value: 3.3 µH
• Tolerance: ±20%
• Current rating: 2 A minimum
• Saturation current (Isat): 2 A minimum
• DC resistance: 80 mOhm maximum
• Package dimensions: 0.260" L x 0.175" W (6.60 mm x 4.45 mm)
• Height: 0.115" (2.92 mm) maximum
• Mounting type: Surface Mount
• Shielding configuration: Unshielded
• Inductance test frequency: 100 kHz

The Pulse Electronics P0770.332NLT meets all specified electrical and mechanical parameters, maintaining identical inductance, current rating, DC resistance, and physical footprint. Both components are RoHS3 compliant and operate within compatible temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

Both the 74455033 and P0770.332NLT are active products with full regulatory compliance. Selection between these components should be based on availability and supply chain requirements, as electrical and mechanical specifications are identical. The P0770.332NLT offers an extended operating temperature range to 130°C, which may provide additional margin in high-temperature applications. Both components maintain RoHS3 compliance, REACH unaffected status, and EAR99 export classification. Moisture sensitivity level 1 indicates unlimited shelf life for both parts.

Frequently Asked Questions (FAQ)

Q: Can the P0770.332NLT replace the 74455033 in existing designs?

A: Yes. Both components share identical inductance (3.3 µH), current rating (2 A), DC resistance (80 mOhm max), and physical dimensions (0.260" L x 0.175" W, 0.115" height). Surface mount footprint compatibility is confirmed.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Inductance value, tolerance, current rating, saturation current, and DC resistance must match exactly. Both parts meet these criteria at 3.3 µH ±20%, 2 A rating, and 80 mOhm maximum DCR.

Q: Are there temperature range differences between these parts?

A: The 74455033 operates from -40°C to 100°C, while the P0770.332NLT extends to 130°C. Both ranges are suitable for standard industrial applications. The extended range of the substitute may provide additional thermal margin in specific environments.

Q: Do both parts have identical moisture sensitivity ratings?

A: Yes. Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity limitations and unlimited shelf life under standard storage conditions.

Q: Are regulatory certifications equivalent?

A: Yes. Both parts are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. HTSUS classification is identical at 8504.50.4000.