ECQ-B2183JF Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECQ-B2183JF is a 0.018 µF polyester film capacitor rated for 200V DC operation in a radial through-hole package, manufactured by Panasonic Electronic Components. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain the same capacitance value, tolerance, and core electrical ratings while accommodating minor variations in physical dimensions and dielectric material composition.

Substiute Parts

ECQ-B2183JF

Panasonic Electronic ComponentsIn Stock: 994ECQ-B2183JF Datasheet

Current PartRFQ

ECQ-E2183JF

Panasonic Electronic ComponentsIn Stock: 2642ECQ-E2183JF Datasheet

SimilarRFQ

167183J250A-F

Cornell Dubilier Electronics (CDE)In Stock: 861167183J250A-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECQ-B2183JF are qualified based on the following criteria:

Critical Parameters (Must Match):

• Capacitance: 0.018 µF
• Tolerance: ±5%
• Mounting Type: Through Hole
• Package / Case: Radial
• Lead Spacing: 0.295" (7.50mm)
• Termination: PC Pins

Allowable Variations:

• Voltage Rating - DC: Minimum 200V (higher ratings acceptable)
• Dielectric Material: Polyester or Polyester Metallized (metallized variants acceptable)
• Operating Temperature Range: May extend beyond -40°C ~ 105°C
• Physical Dimensions: Minor variations acceptable provided lead spacing remains constant
• Product Status: Active alternatives preferred over obsolete

The two identified substitutes meet all critical parameters and provide enhanced voltage ratings (250V DC) compared to the original specification, ensuring compatibility with existing circuit designs while offering improved reliability through active product status.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are qualified alternatives to the obsolete ECQ-B2183JF based on electrical and mechanical compatibility.

ECQ-E2183JF (Panasonic): This substitute maintains manufacturer continuity with the original part while providing active product status and ROHS3 compliance. The metallized polyester dielectric offers improved performance characteristics. Physical dimensions are slightly reduced (10.30mm × 4.40mm vs. 11.00mm × 5.50mm), which may provide layout advantages in space-constrained applications. The 250V DC rating provides a 25% safety margin over the original specification.

167183J250A-F (Cornell Dubilier Electronics): This alternative offers the widest operating temperature range (-55°C ~ 125°C), extending 20°C below and 20°C above the original specification. The compact physical profile (10.50mm × 4.60mm) and 250V DC rating provide design flexibility. ROHS3 and REACH compliance certifications are provided. Selection of this part introduces a secondary manufacturer into the supply chain.

Both parts maintain identical lead spacing (7.50mm) and termination style, ensuring direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can ECQ-E2183JF or 167183J250A-F be used as direct replacements for ECQ-B2183JF?

A: Yes. Both substitutes maintain the critical electrical parameters (0.018 µF capacitance, ±5% tolerance, 200V minimum DC rating) and mechanical specifications (radial package, 7.50mm lead spacing, PC pin termination) required for direct PCB compatibility.

Q: What is the significance of the higher voltage rating (250V) in the substitute parts?

A: The 250V DC rating in both substitutes exceeds the original 200V specification, providing a 25% safety margin. This higher rating does not affect circuit operation at 200V and may improve long-term reliability through reduced electrical stress on the dielectric material.

Q: Are there differences in the dielectric material between the main part and substitutes?

A: The ECQ-B2183JF uses standard polyester dielectric, while both substitutes employ polyester with metallization. Metallized polyester film provides enhanced performance characteristics while maintaining the same capacitance and tolerance specifications. This material difference does not affect electrical compatibility in general-purpose applications.

Q: Do the physical dimension variations affect PCB layout?

A: The substitute parts have slightly smaller physical dimensions than the original. ECQ-E2183JF measures 10.30mm × 4.40mm (vs. 11.00mm × 5.50mm), and 167183J250A-F measures 10.50mm × 4.60mm. Lead spacing remains constant at 7.50mm, ensuring PCB hole compatibility. Smaller body dimensions may provide layout advantages but do not require design modifications.

Q: Which substitute part should be selected for new designs?

A: Selection depends on specific application requirements. For manufacturer continuity and standard operating conditions, ECQ-E2183JF is appropriate. For applications requiring extended temperature operation or secondary sourcing, 167183J250A-F provides a wider operating range (-55°C ~ 125°C) and alternative supply chain access.

Q: Are both substitute parts RoHS and REACH compliant?

A: Yes. Both ECQ-E2183JF and 167183J250A-F carry ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements for electronic component procurement.