SR155C153KAATR1 Equivalent & Substitute Parts

Part Overview

The SR155C153KAATR1 is a 0.015 µF ceramic capacitor rated at 50V with X7R temperature coefficient, manufactured by KYOCERA AVX in the SkyCap® SR series. 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 currently active and in stock with 725 units available.

Substitute parts become necessary when the original manufacturer part is unavailable, when alternative packaging formats are required for production efficiency, or when design revisions call for different lead spacing or physical dimensions while maintaining identical electrical performance.

Key Parameters

Parameter	Value
Capacitance	0.015 µF
Tolerance	±10%
Voltage Rating	50V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package Type	Radial
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SR155C153KAATR1 is determined by strict equivalence in the following electrical parameters: capacitance value (0.015 µF), tolerance (±10%), voltage rating (50V), and temperature coefficient (X7R). All substitute parts must maintain the operating temperature range of -55°C to 125°C and be mounted as through-hole radial components.

Mechanical variations in lead spacing, body dimensions, and lead style are permissible provided the component physically fits the PCB layout and the lead configuration is compatible with the board design. Physical dimensions and lead spacing differences do not affect electrical substitutability but require verification against specific board requirements.

All identified substitutes maintain ROHS3 compliance and EAR99 export classification, ensuring regulatory consistency with the original part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Operating Temperature	Lead Spacing	Product Status	Inventory (Pcs)
SR155C153KAATR1	KYOCERA AVX	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.100" (2.54mm)	Active	725
C315C153K5R5TA	KEMET	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.100" (2.54mm)	Active	5301
C317C153K5R5TA	KEMET	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.200" (5.08mm)	Active	8790
C320C153K5R5TA	KEMET	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.100" (2.54mm)	Active	3905
C322C153K5R5TA	KEMET	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.200" (5.08mm)	Active	3418
FK18X7R1H153KN020	TDK Corporation	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.098" (2.50mm)	Not For New Designs	1521
FK28X7R1H153KN000	TDK Corporation	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.197" (5.00mm)	Not For New Designs	748
K153K10X7RF5UH5	Vishay Beyschlag/Draloric/BC Components	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.197" (5.00mm)	Active	21729
RDER71H153K0K1H03B	Murata Electronics	0.015 µF	±10%	50V	X7R	-55°C to 125°C	0.197" (5.00mm)	Active	1130

Engineering Selection Recommendations

For new designs and production applications, select from parts with Active product status: C315C153K5R5TA, C317C153K5R5TA, C320C153K5R5TA, C322C153K5R5TA, K153K10X7RF5UH5, and RDER71H153K0K1H03B. All maintain ROHS3 compliance and are suitable for long-term supply chain planning.

The KEMET GoldMax 300 Comm X7R series (C315C, C317C, C320C, C322C) offers the highest inventory availability and represents the primary substitution path. Selection among these variants depends on required lead spacing: 0.100" (2.54mm) spacing for C315C153K5R5TA and C320C153K5R5TA, or 0.200" (5.08mm) spacing for C317C153K5R5TA and C322C153K5R5TA.

The Vishay Beyschlag K153K10X7RF5UH5 provides the largest inventory reserve (21,729 units) with 0.197" (5.00mm) lead spacing and is available in Cut Tape packaging format.

The Murata RDER71H153K0K1H03B offers an alternative with 0.197" (5.00mm) lead spacing and is available in bulk packaging.

TDK FK series parts (FK18X7R1H153KN020 and FK28X7R1H153KN000) carry "Not For New Designs" status and should be used only for legacy system maintenance or repair applications where original part compatibility is mandatory.

Frequently Asked Questions (FAQ)

Q: Can I substitute the SR155C153KAATR1 with any of the listed parts?

A: Yes, all listed parts are electrically equivalent. Substitution requires verification that the lead spacing and physical dimensions are compatible with your PCB layout. The SR155C153KAATR1 uses 0.100" (2.54mm) lead spacing; direct mechanical substitutes with identical spacing are C315C153K5R5TA and C320C153K5R5TA.

Q: What is the difference between the KEMET C315C and C317C variants?

A: Both are electrically identical 0.015 µF 50V X7R capacitors. The primary difference is lead spacing: C315C153K5R5TA has 0.100" (2.54mm) spacing with straight leads, while C317C153K5R5TA has 0.200" (5.08mm) spacing with formed leads. Select based on your PCB hole pattern requirements.

Q: Why are some parts marked "Not For New Designs"?

A: TDK FK series parts carry this designation indicating they are in mature or end-of-life phases. These parts remain available for existing product support and legacy system repairs but should not be selected for new product development due to potential future supply discontinuation.

Q: Does lead style (straight vs. formed) affect electrical performance?

A: No. Lead style is a mechanical characteristic that affects physical installation and PCB compatibility only. Electrical performance remains identical across all variants with the same capacitance, voltage, and temperature coefficient specifications.

Q: Which substitute offers the best inventory availability?

A: The Vishay K153K10X7RF5UH5 provides the highest inventory level at 21,729 units. For KEMET alternatives, the C317C153K5R5TA offers 8,790 units in stock.

Q: Are all substitutes RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original SR155C153KAATR1 specification.

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