SR125C153KAATR2 Equivalent & Substitute Parts

Part Overview

The SR125C153KAATR2 is a 0.015 µF ceramic capacitor rated at 50V with X7R temperature coefficient, manufactured by KYOCERA AVX under 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 626 units available.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative sourcing improves lead times or cost efficiency, or when design flexibility permits selection from qualified equivalent components that meet identical electrical and mechanical specifications.

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 SR125C153KAATR2 is determined by strict equivalence across the following parameters:

Capacitance value: 0.015 µF (exact match required)
Tolerance: ±10% (exact match required)
Voltage rating: 50V (exact match required)
Temperature coefficient: X7R (exact match required)
Operating temperature range: -55°C to 125°C (exact match required)
Mounting type: Through Hole (exact match required)
Package type: Radial (exact match required)
Regulatory compliance: ROHS3 Compliant, REACH Unaffected, ECCN EAR99 (exact match required)

Physical dimensions (length, width, height, lead spacing) and lead style may vary within the radial package category without affecting electrical performance, provided the component fits within the PCB layout constraints of the original design.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Operating Temperature	Mounting Type	Package Type	Product Status	RoHS Status	Inventory (Pcs)
SR125C153KAATR2	KYOCERA AVX	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Active	ROHS3 Compliant	626
C315C153K5R5TA	KEMET	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Active	ROHS3 Compliant	5301
C317C153K5R5TA	KEMET	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Active	ROHS3 Compliant	8790
C320C153K5R5TA	KEMET	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Active	ROHS3 Compliant	3905
C322C153K5R5TA	KEMET	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Active	ROHS3 Compliant	3418
FK18X7R1H153KN020	TDK Corporation	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Not For New Designs	ROHS3 Compliant	1521
FK28X7R1H153KN000	TDK Corporation	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Not For New Designs	ROHS3 Compliant	748
K153K10X7RF5UH5	Vishay Beyschlag/Draloric/BC Components	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Active	ROHS3 Compliant	21729
RDER71H153K0K1H03B	Murata Electronics	0.015 µF	±10%	50V	X7R	-55°C to 125°C	Through Hole	Radial	Active	ROHS3 Compliant	1130

Engineering Selection Recommendations

All listed substitute parts meet the electrical and regulatory requirements for direct replacement of the SR125C153KAATR2. Selection should prioritize parts with Active product status for new designs and ongoing production.

Recommended substitutes for new designs:

C317C153K5R5TA (KEMET) — Active status, highest inventory availability (8790 units)
K153K10X7RF5UH5 (Vishay) — Active status, largest stock position (21729 units)
C315C153K5R5TA (KEMET) — Active status, strong inventory (5301 units)
RDER71H153K0K1H03B (Murata) — Active status, established supplier

Acceptable for legacy or maintenance applications:

FK18X7R1H153KN020 (TDK) — Not For New Designs status, limited inventory (1521 units)
FK28X7R1H153KN000 (TDK) — Not For New Designs status, limited inventory (748 units)

Physical dimensions vary among substitute parts. Verify PCB layout compatibility, particularly lead spacing and component height, before finalizing part selection. All candidates carry identical ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the SR125C153KAATR2?

A: Yes, all listed parts are electrically equivalent. They share identical capacitance (0.015 µF), tolerance (±10%), voltage rating (50V), temperature coefficient (X7R), and operating temperature range (-55°C to 125°C). Physical dimensions differ, so verify that the substitute part fits within your PCB layout constraints, particularly lead spacing and component height.

Q: What is the difference between Active and Not For New Designs product status?

A: Active parts are currently in production and recommended for new designs. Parts marked Not For New Designs are still available but may have limited future supply. For new product development, select from the Active status parts: C315C153K5R5TA, C317C153K5R5TA, C320C153K5R5TA, C322C153K5R5TA, K153K10X7RF5UH5, or RDER71H153K0K1H03B.

Q: Do all substitute parts have the same lead spacing?

A: No. Lead spacing varies among the substitute parts. The SR125C153KAATR2 has 0.200" (5.08mm) lead spacing. Verify the lead spacing of your selected substitute against your PCB design before ordering. Refer to the detailed specifications for each part number.

Q: Are all these parts RoHS compliant?

A: Yes. All listed parts are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes.

Q: Which substitute has the best availability?

A: K153K10X7RF5UH5 (Vishay) has the largest inventory at 21,729 units. C317C153K5R5TA (KEMET) is the second option with 8,790 units available.

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