SR215A331KAATR1 Equivalent & Substitute Parts

Part Overview

The SR215A331KAATR1 is a 330 pF ceramic capacitor manufactured by KYOCERA AVX, rated at 50V with C0G/NP0 temperature coefficient characteristics. This radial through-hole component is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is ROHS3 compliant and currently active in production with 869 units in stock.

Equivalent and substitute parts are identified when manufacturers discontinue production lines, when design requirements necessitate higher voltage ratings, or when alternative sourcing becomes necessary for supply chain continuity. The substitute parts listed maintain the core electrical specifications (330 pF capacitance, C0G/NP0 temperature coefficient, through-hole radial package) while offering variations in voltage rating, tolerance, and physical dimensions.

Key Parameters

Parameter	Value
Capacitance	330 pF
Tolerance	±10%
Voltage Rating	50V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.200" (5.08mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SR215A331KAATR1 is determined by the following criteria:

Mandatory Parameters (Must Match):

Capacitance: 330 pF
Temperature Coefficient: C0G/NP0
Mounting Type: Through Hole
Package Type: Radial
Lead Spacing: 0.200" (5.08mm)
Operating Temperature Range: -55°C to 125°C
RoHS Compliance: ROHS3 Compliant

Allowable Variations:

Voltage Rating: May be equal to or higher than 50V (substitutes rated at 100V, 200V, 250V, and 630V are acceptable)
Tolerance: May be tighter than ±10% (±5% substitutes are acceptable)
Physical Dimensions: Minor variations in length, width, and height are acceptable provided lead spacing remains 0.200" (5.08mm)
Manufacturer: Different manufacturers acceptable if all electrical and mechanical parameters align

Substitute parts are grouped by voltage rating, as this is the primary design parameter that determines circuit compatibility and performance envelope.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Size (L x W)	Lead Spacing	Product Status
SR215A331KAATR1	KYOCERA AVX	330 pF	±10%	50V	C0G, NP0	0.200" x 0.125" (5.08mm x 3.18mm)	0.200" (5.08mm)	Active
FK28C0G1H331JN000	TDK Corporation	330 pF	±5%	50V	C0G, NP0	0.157" x 0.098" (4.00mm x 2.50mm)	0.197" (5.00mm)	Not For New Designs
RDE5C1H331J0K1H03B	Murata Electronics	330 pF	±5%	50V	C0G, NP0	0.157" x 0.098" (4.00mm x 2.50mm)	0.197" (5.00mm)	Active
RDE5C1H331J0M1H03A	Murata Electronics	330 pF	±5%	50V	C0G, NP0	0.157" x 0.098" (4.00mm x 2.50mm)	0.197" (5.00mm)	Active
K331J15C0GF5TH5	Vishay Beyschlag/Draloric/BC Components	330 pF	±5%	50V	C0G, NP0	0.157" x 0.102" (4.00mm x 2.60mm)	0.197" (5.00mm)	Active
C317C331J1G5TA	KEMET	330 pF	±5%	100V	C0G, NP0	0.150" x 0.100" (3.81mm x 2.54mm)	0.200" (5.08mm)	Active
FK28C0G2A331JN000	TDK Corporation	330 pF	±5%	100V	C0G, NP0	0.157" x 0.098" (4.00mm x 2.50mm)	0.197" (5.00mm)	Not For New Designs
C317C331J2G5TA	KEMET	330 pF	±5%	200V	C0G, NP0	0.150" x 0.100" (3.81mm x 2.54mm)	0.200" (5.08mm)	Active
C322C331J2G5TA	KEMET	330 pF	±5%	200V	C0G, NP0	0.200" x 0.125" (5.08mm x 3.18mm)	0.200" (5.08mm)	Active
FK28C0G2E331JN000	TDK Corporation	330 pF	±5%	250V	C0G, NP0	0.157" x 0.098" (4.00mm x 2.50mm)	0.197" (5.00mm)	Not For New Designs
FK26C0G2J331JN000	TDK Corporation	330 pF	±5%	630V	C0G, NP0	0.217" x 0.138" (5.50mm x 4.60mm)	0.197" (5.00mm)	Not For New Designs

Engineering Selection Recommendations

For Direct Replacement (50V Rating): The RDE5C1H331J0M1H03A and RDE5C1H331J0K1H03B from Murata Electronics are active production parts with identical electrical specifications and tighter tolerance (±5%). The K331J15C0GF5TH5 from Vishay is also active and suitable. These parts maintain the 50V voltage rating and C0G/NP0 temperature coefficient of the original SR215A331KAATR1.

For Higher Voltage Applications (100V and Above): When circuit design permits higher voltage ratings, the C317C331J1G5TA (100V), C317C331J2G5TA (200V), and C322C331J2G5TA (200V) from KEMET are active production alternatives. The C322C331J2G5TA maintains the same physical footprint (0.200" x 0.125") as the original part, facilitating direct PCB layout compatibility.

For Obsolescence Mitigation: Parts marked "Not For New Designs" (FK28C0G1H331JN000, FK28C0G2A331JN000, FK28C0G2E331JN000, FK26C0G2J331JN000) should not be selected for new designs. These TDK parts are suitable only for legacy system maintenance or repair applications where existing inventory exists.

Compliance Considerations: All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory requirements of the original SR215A331KAATR1.

Frequently Asked Questions (FAQ)

Q: Can I use a 100V-rated capacitor in place of the 50V SR215A331KAATR1?

A: Yes. A higher voltage rating is electrically compatible and provides additional safety margin. The C317C331J1G5TA (100V) and FK28C0G2A331JN000 (100V) are direct functional substitutes. The circuit will operate identically, as the capacitor will not be stressed beyond its 50V design point.

Q: What is the difference between the 50V and 200V rated parts?

A: The primary difference is the dielectric thickness and internal construction required to withstand higher voltage stress. Both maintain 330 pF capacitance and C0G/NP0 temperature stability. The 200V parts (C317C331J2G5TA, C322C331J2G5TA) are suitable for circuits requiring higher voltage headroom or operating in higher voltage environments.

Q: Are there physical size differences between substitutes?

A: Yes. The original SR215A331KAATR1 measures 0.200" x 0.125" (5.08mm x 3.18mm). Some substitutes, particularly the TDK FK series and Murata RDE series, are smaller at 0.157" x 0.098" (4.00mm x 2.50mm). The C322C331J2G5TA maintains the original footprint. Lead spacing remains 0.200" (5.08mm) or 0.197" (5.00mm) across all parts, ensuring PCB hole compatibility.

Q: What does "Not For New Designs" mean?

A: This product status indicates the manufacturer has discontinued or is phasing out the part. While existing inventory may be available, these parts should not be specified for new product designs. Active production alternatives should be selected instead.

Q: Does tolerance affect substitutability?

A: The SR215A331KAATR1 has ±10% tolerance, while most substitutes offer ±5% tolerance. The tighter tolerance of substitutes is acceptable and provides improved capacitance accuracy. This does not prevent substitution; it represents an improvement in component specification.

Q: Can I substitute parts with different lead spacing?

A: Lead spacing of 0.200" (5.08mm) or 0.197" (5.00mm) are compatible with standard 0.200" PCB hole spacing. Parts with these lead spacings are mechanically interchangeable on through-hole boards. Verify PCB design specifications before substitution.

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