Equivalent & Substitute Parts Reference for 57283 (Knowles Johanson Manufacturing)

Part Overview

The Knowles Johanson Manufacturing part number 57283 is a 0.6 ~ 4.5pF Top-Adjustable Trimmer Capacitor rated for 500 V, designed for surface mount applications. Its compact construction and performance parameters support use in precision tuning applications where capacitance range, voltage rating, and physical size are critical. The part status is Active, indicating current production and availability. Identifying alternative models is necessary to ensure supply chain flexibility, mitigate potential procurement risks, and maintain design integrity in situations where the original part may be temporarily unavailable.

Substiute Parts

57283

Knowles Johanson ManufacturingIn Stock: 109757283 Datasheet

Current PartRFQ

57283-1

Knowles Johanson ManufacturingIn Stock: 155457283-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are identified strictly according to matches in the following key parameters: capacitance range, voltage rating, adjustment type, mounting type, size, operating temperature, Q factor at specified frequency, general use features, and MSL rating. All substitute parts listed match the main part (57283) in these parameters, ensuring electrical and mechanical compatibility for direct replacement or alternative sourcing within the defined specification boundaries.

Key matching parameters:

• Capacitance Range
• Voltage - Rated
• Adjustment Type
• Mounting Type
• Size / Dimension
• Height - Seated (Max)
• Operating Temperature
• Q @ Freq
• Features
• Moisture Sensitivity Level (MSL)

Parameter Comparison

Engineering Selection Recommendations

Selection between 57283 and 57283-1 is justified by their matching electrical and mechanical parameters, part status, and MSL classification. Compliance factors such as RoHS3 status and ECCN/HTSUS classification provided for substitutes also align with standard industry requirements for general applications. Only parts with "Active" status are included, ensuring the selected items are currently in production and available for procurement.

Frequently Asked Questions (FAQ)

Q1: What parameters must be matched to substitute 57283 with 57283-1?
A: Capacitance range, voltage rating, adjustment type, mounting type, size, height, operating temperature, Q at test frequency, features, and MSL classification all must be matched.

Q2: Is the surface mount package and physical footprint compatible between 57283 and 57283-1?
A: Both parts have identical size/dimension (0.150" Dia/3.81mm) and maximum seated height (0.230"/5.84mm), ensuring direct compatibility.

Q3: Are both 57283 and 57283-1 suitable for operation in the same environments?
A: Both components are rated for operating temperatures of -65°C ~ 125°C and share a Q factor of 1000 @ 200MHz, ensuring equivalent performance under the same conditions.

Q4: Does the Moisture Sensitivity Level (MSL) differ between the two parts?
A: Both have an MSL rating of 1 (Unlimited), suitable for standard manufacturing and reflow processes.

Q5: Are there differences in regulatory or compliance status that affect substitute selection?
A: 57283-1 is additionally marked as ROHS3 Compliant, aligning with regulatory requirements. ECCN and HTSUS codes are provided for classification purposes.

Q6: Does the adjustment type match for compatible tuning methods?
A: Both 57283 and 57283-1 employ a Top adjustment mechanism.