Vishay Cera-Mite 561R1DF0Q39 Equivalent & Substitute Parts

Part Overview

The Vishay Cera-Mite 561R1DF0Q39 is a 39 pF ceramic capacitor rated for 1000V (1kV) with N2200 temperature coefficient, designed for general-purpose applications requiring radial, disc-type through-hole mounting. This part is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

561R1DF0Q39

Vishay Cera-MiteIn Stock: 943561R1DF0Q39 Datasheet

Current PartRFQ

561R10TCCQ39

Vishay Cera-MiteIn Stock: 2011561R10TCCQ39 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 561R1DF0Q39 is determined by the following critical parameters:

• Capacitance Value: Must be 39 pF (exact match required)
• Voltage Rating: Must be 1000V or higher (1kV minimum)
• Mounting Type: Must be through-hole radial configuration
• Lead Spacing: Must be 0.252" (6.40mm) to ensure PCB compatibility
• Operating Temperature Range: Must support -55°C to 105°C minimum
• RoHS Compliance: Must maintain ROHS3 compliance status

The substitute part 561R10TCCQ39 meets all critical substitution criteria. While it features a tighter tolerance (±5% versus ±10%) and different temperature coefficient (C0G/NP0 versus N2200), these represent improvements in performance characteristics rather than incompatibilities. The lead spacing remains identical at 0.252" (6.40mm), ensuring direct PCB footprint compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 561R10TCCQ39 is the manufacturer-recommended substitute for the obsolete 561R1DF0Q39. Selection of this substitute is supported by:

• Active Product Status: The substitute maintains active production status, ensuring long-term availability and supply chain stability
• Regulatory Compliance: Both parts maintain ROHS3 compliance and identical ECCN/HTSUS classifications
• Electrical Compatibility: Identical capacitance value, voltage rating, and operating temperature range ensure functional equivalence
• Physical Compatibility: Matching lead spacing (0.252" / 6.40mm) and radial disc package configuration enable direct PCB footprint compatibility
• Performance Enhancement: The tighter tolerance specification (±5%) of the substitute represents an improvement over the original part's ±10% tolerance

Frequently Asked Questions (FAQ)

Q: Can the 561R10TCCQ39 be used as a direct replacement for the 561R1DF0Q39?

A: Yes. Both parts share identical capacitance (39 pF), voltage rating (1000V), lead spacing (0.252"), and operating temperature range (-55°C to 105°C). The lead spacing match ensures PCB footprint compatibility without layout modifications.

Q: What is the difference between N2200 and C0G/NP0 temperature coefficients?

A: N2200 and C0G/NP0 are different temperature coefficient classifications. The substitute's C0G/NP0 coefficient provides superior temperature stability characteristics. This represents a performance improvement for applications sensitive to capacitance drift across temperature ranges.

Q: Does the tighter tolerance of the substitute affect compatibility?

A: No. The substitute's ±5% tolerance is tighter than the original ±10% tolerance. Tighter tolerance specifications are compatible with designs that accept the original tolerance, as they represent a subset of acceptable values.

Q: Are there physical size differences between these parts?

A: Yes. The substitute (561R10TCCQ39) has a larger body diameter (0.370" / 9.40mm) compared to the original (0.252" / 6.40mm). However, the critical lead spacing remains identical at 0.252" (6.40mm), ensuring PCB compatibility. Physical clearance around the component should be verified for the larger body diameter.

Q: What is the inventory status for these parts?

A: The original 561R1DF0Q39 is obsolete with 852 pieces in stock. The substitute 561R10TCCQ39 is active with 1925 pieces in stock, providing superior long-term availability.