SR155C153KAATR2 Equivalent & Substitute Parts

Part Overview

The SR155C153KAATR2 is a 0.015 µF ceramic capacitor rated at 50V with X7R temperature coefficient, manufactured by KYOCERA AVX in the SkyCap® SR series. This through-hole radial component is designed for general-purpose applications and is currently in active production status with 1136 units in stock.

Substitute parts are necessary when the original SR155C153KAATR2 becomes unavailable, when alternative packaging formats are required for specific assembly processes, or when lead spacing and physical dimensions must accommodate different PCB layouts while maintaining identical electrical performance.

Substiute Parts

SR155C153KAATR2

KYOCERA AVXIn Stock: 1224SR155C153KAATR2 Datasheet

Current PartRFQ

C315C153K5R5TA

KEMETIn Stock: 5364C315C153K5R5TA Datasheet

MFR RecommendedRFQ

C317C153K5R5TA

KEMETIn Stock: 8882C317C153K5R5TA Datasheet

MFR RecommendedRFQ

C320C153K5R5TA

KEMETIn Stock: 4007C320C153K5R5TA Datasheet

MFR RecommendedRFQ

C322C153K5R5TA

KEMETIn Stock: 3440C322C153K5R5TA Datasheet

MFR RecommendedRFQ

FK18X7R1H153KN020

TDK CorporationIn Stock: 1620FK18X7R1H153KN020 Datasheet

MFR RecommendedRFQ

FK28X7R1H153KN000

TDK CorporationIn Stock: 784FK28X7R1H153KN000 Datasheet

MFR RecommendedRFQ

K153K10X7RF5UH5

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 21749K153K10X7RF5UH5 Datasheet

MFR RecommendedRFQ

RDER71H153K0K1H03B

Murata ElectronicsIn Stock: 1218RDER71H153K0K1H03B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SR155C153KAATR2 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)
• RoHS compliance: ROHS3 Compliant (exact match required)

Physical dimensions including lead spacing, body length, width, and height may vary between manufacturers while maintaining functional equivalence. These dimensional variations accommodate different PCB layouts and assembly equipment specifications without affecting electrical performance.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and compliance requirements for direct substitution with the SR155C153KAATR2. Selection among these alternatives depends on specific application constraints:

For new designs and long-term availability: KEMET C315C153K5R5TA, C317C153K5R5TA, C320C153K5R5TA, and C322C153K5R5TA are preferred due to active product status and high inventory levels. Vishay K153K10X7RF5UH5 and Murata RDER71H153K0K1H03B are also active products with substantial stock.

For existing designs requiring direct footprint compatibility: C315C153K5R5TA maintains the 0.100" (2.54mm) lead spacing of the original SR155C153KAATR2. C320C153K5R5TA also uses 0.100" lead spacing with larger body dimensions.

For designs accommodating 0.200" (5.08mm) lead spacing: C317C153K5R5TA and C322C153K5R5TA from KEMET provide this spacing. K153K10X7RF5UH5 from Vishay and RDER71H153K0K1H03B from Murata use 0.197" (5.00mm) spacing.

For legacy system support only: FK18X7R1H153KN020 and FK28X7R1H153KN000 from TDK are marked "Not For New Designs" and should be used only when maintaining existing production runs or supporting discontinued equipment.

All substitute parts carry ROHS3 compliance and are suitable for the full -55°C to 125°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can I substitute the SR155C153KAATR2 with any of these parts without circuit redesign?

A: All listed parts are electrically equivalent and will function identically in the circuit. However, physical dimensions and lead spacing differ. If your PCB layout accommodates the specific lead spacing and body size of the substitute part, no redesign is required. Verify lead spacing and body dimensions against your PCB footprint before selection.

Q: What is the difference between 0.100" and 0.200" lead spacing?

A: Lead spacing refers to the distance between the two radial leads. The SR155C153KAATR2 uses 0.100" (2.54mm) spacing. Substitute parts with 0.200" (5.08mm) or 0.197" (5.00mm) spacing require different PCB hole patterns and cannot be used interchangeably without PCB modification.

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

A: TDK parts FK18X7R1H153KN020 and FK28X7R1H153KN000 are in the "Not For New Designs" status, indicating they are being phased out. These parts remain available for supporting existing production but should not be selected for new product development. Active alternatives from KEMET, Vishay, and Murata are recommended for new designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the compliance status of the SR155C153KAATR2.

Q: What is the significance of the X7R temperature coefficient?

A: X7R indicates the capacitance will vary by a maximum of ±15% across the full -55°C to 125°C operating temperature range. All substitute parts use identical X7R specification, ensuring consistent performance across temperature extremes.

Q: Can I mix different manufacturers' parts in the same assembly?

A: Yes. All substitute parts meet identical electrical specifications and compliance requirements. Mixing manufacturers in the same assembly is acceptable from an electrical standpoint. However, verify that your supply chain and quality control processes accommodate multiple part sources.