4590-334K Equivalent & Substitute Parts

Part Overview

The 4590-334K is a 330 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 1.61 A continuous current with a maximum DC resistance of 257 mOhm. This through-hole axial component operates across the industrial temperature range of -55°C to 125°C and is specified at 1 kHz inductance frequency. The part is currently active in production with 656 pieces available in new original stock.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when supply chain constraints require alternative sourcing, or when design revisions call for components with improved compliance certifications while maintaining identical electrical and mechanical performance.

Substiute Parts

4590-334K

API Delevan Inc.In Stock: 6924590-334K Datasheet

Current PartRFQ

4590R-334K

API Delevan Inc.In Stock: 14394590R-334K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 4590R-334K qualifies as a direct substitute for the 4590-334K based on strict electrical and mechanical parameter equivalence. Both parts share identical specifications across all critical substitution criteria:

• Inductance value and tolerance (330 µH ±10%)
• Current rating and saturation current (1.61 A / 950 mA)
• DC resistance (257 mOhm Max)
• Core material and construction (Ferrite, drum core, wirewound)
• Shielding configuration (Unshielded)
• Physical dimensions and mounting (Axial, through-hole, 0.455" Dia x 0.900" L)
• Operating temperature range (-55°C ~ 125°C)
• Inductance test frequency (1 kHz)

The substitution is valid because the 4590R-334K maintains complete electrical and mechanical compatibility while offering improved regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 4590R-334K is the direct substitute for the 4590-334K. Both parts are active products from the same manufacturer with identical electrical and mechanical specifications. The primary distinction is regulatory compliance: the 4590R-334K carries ROHS3 compliance certification, whereas the 4590-334K is RoHS non-compliant. Both parts maintain REACH Unaffected status and share the same ECCN and HTSUS classifications.

Selection between these parts should be based on regulatory requirements applicable to the end application. If RoHS3 compliance is mandated by design specifications or regional regulations, the 4590R-334K is the appropriate choice. If RoHS compliance is not a requirement, either part may be used interchangeably. The 4590R-334K also offers higher inventory availability at 1383 pieces compared to 656 pieces for the 4590-334K.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-334K be used as a direct replacement for the 4590-334K in existing designs?

A: Yes. The 4590R-334K is electrically and mechanically identical to the 4590-334K. All critical parameters—inductance, current rating, DC resistance, core material, physical dimensions, and operating temperature range—are equivalent. Direct substitution is valid without circuit redesign or PCB layout modification.

Q: What is the difference between the 4590-334K and 4590R-334K?

A: The primary difference is RoHS compliance status. The 4590R-334K is ROHS3 compliant, while the 4590-334K is RoHS non-compliant. All other specifications, including electrical performance and physical characteristics, are identical.

Q: Are there any compatibility concerns when switching between these part numbers?

A: No compatibility concerns exist. Both parts are axial through-hole inductors with identical pinout, footprint dimensions (0.455" Dia x 0.900" L), and lead spacing. They are mechanically and electrically interchangeable.

Q: Which part should I specify for new designs?

A: Specify the 4590R-334K for new designs if RoHS3 compliance is required by your application or regional regulations. If RoHS compliance is not a requirement, either part is acceptable. The 4590R-334K also provides better supply availability.

Q: Do these parts have the same temperature operating range?

A: Yes. Both the 4590-334K and 4590R-334K operate across the identical temperature range of -55°C to 125°C.

Q: Are the inductance values and tolerances identical?

A: Yes. Both parts are specified at 330 µH with ±10% tolerance, tested at 1 kHz.