SR155C102KAT Equivalent & Substitute Parts

Part Overview

The SR155C102KAT is a 1000 pF ±10% 50V ceramic capacitor with X7R temperature coefficient manufactured by KYOCERA AVX in the SkyCap® SR series. This through-hole radial component is designed for general-purpose applications across the -55°C to 125°C operating temperature range. The part is active and in production, with ROHS3 compliance and REACH unaffected status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when design requirements necessitate alternative voltage ratings or packaging configurations.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±10%
Voltage - Rated	50V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	0.100" (2.54mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution relationships for the SR155C102KAT are established based on the following criteria:

Direct Equivalents (Same Electrical & Mechanical Specifications): Parts with identical capacitance (1000 pF), tolerance (±10%), voltage rating (50V), temperature coefficient (X7R), operating temperature range (-55°C to 125°C), mounting type (through hole radial), and lead spacing (0.100" / 2.54mm) are classified as direct equivalents. Packaging format differences (bulk vs. cut tape) do not affect electrical equivalence.

Parametric Equivalents (Same Electrical, Minor Physical Variations): Parts matching all electrical specifications but with different lead styles (straight vs. formed/kinked) or height variations within the radial package category maintain functional equivalence for most circuit applications.

Upgrade Parts (Higher Voltage Rating): Parts with 100V voltage rating instead of 50V are classified as upgrades. These maintain identical capacitance, tolerance, temperature coefficient, and operating temperature range, providing enhanced voltage margin for the same footprint and lead spacing.

Cross-Manufacturer Equivalents: Parts from alternative manufacturers (Vishay Beyschlag/Draloric/BC Components, KEMET) with matching electrical specifications and through-hole radial packaging are included. Minor dimensional variations in body size and height are noted but do not prevent functional substitution when lead spacing and mounting type remain compatible.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Packaging	Lead Style	Height (Max)	Inventory
SR155C102KAT	KYOCERA AVX	1000 pF	±10%	50V	X7R	Bulk	Straight	0.150"	963 Pcs
SR155C102KAA	KYOCERA AVX	1000 pF	±10%	50V	X7R	Bulk	Straight	0.150"	2144 Pcs
SR155C102KAR	KYOCERA AVX	1000 pF	±10%	50V	X7R	Bulk	Straight	0.150"	1486 Pcs
SR075C102KARTR1	KYOCERA AVX	1000 pF	±10%	50V	X7R	Cut Tape	Formed Leads - Kinked	0.100"	4176 Pcs
SR151C102KAATR1	KYOCERA AVX	1000 pF	±10%	100V	X7R	Cut Tape	Straight	0.150"	4361 Pcs
SR151C102KAR	KYOCERA AVX	1000 pF	±10%	100V	X7R	Bulk	Straight	0.150"	3280 Pcs
SR151C102KARTR1	KYOCERA AVX	1000 pF	±10%	100V	X7R	Cut Tape	Straight	0.150"	3977 Pcs
K102K10X7RF53L2	Vishay Beyschlag	1000 pF	±10%	50V	X7R	Bulk	Straight	0.205"	16272 Pcs
K102K15X7RF53L2	Vishay Beyschlag	1000 pF	±10%	50V	X7R	Bulk	Straight	0.220"	22368 Pcs
K102K15X7RH53L2	Vishay Beyschlag	1000 pF	±10%	100V	X7R	Bulk	Straight	0.220"	9081 Pcs
C315C102K5R5TA	KEMET	1000 pF	±10%	50V	X7R	Bulk	Straight	0.183"	2239 Pcs

Engineering Selection Recommendations

KYOCERA AVX SkyCap® SR Series (50V Rating): SR155C102KAA and SR155C102KAR provide direct parametric equivalence to SR155C102KAT with identical electrical specifications and straight lead configuration. Both are ROHS3 compliant and active products. Selection between bulk packaging variants depends on procurement and assembly requirements.

KYOCERA AVX SkyCap® SR Series (100V Rating): SR151C102KAR, SR151C102KARTR1, and SR151C102KAATR1 offer voltage upgrade capability while maintaining the same capacitance, tolerance, and temperature coefficient. These parts are suitable for applications requiring enhanced voltage margin. All are ROHS3 compliant and active products with higher inventory availability.

KYOCERA AVX SkyCap® SR Series (50V, Formed Leads): SR075C102KARTR1 maintains 50V electrical specifications with kinked lead style and reduced seated height (0.100" vs. 0.150"). This variant is appropriate for applications with height constraints and is available in cut tape packaging with the highest inventory level (4176 Pcs).

Vishay Beyschlag Mono-Kap™ K Series (50V Rating): K102K10X7RF53L2 and K102K15X7RF53L2 provide cross-manufacturer equivalence with identical electrical specifications. Body dimensions and seated heights differ slightly from KYOCERA AVX parts. Both are ROHS3 compliant and active products with substantial inventory availability.

Vishay Beyschlag Mono-Kap™ K Series (100V Rating): K102K15X7RH53L2 offers voltage upgrade with cross-manufacturer sourcing. Electrical specifications match the 100V KYOCERA AVX upgrades. ROHS3 compliant and active product status confirmed.

KEMET GoldMax 300 Comm X7R Series (50V Rating): C315C102K5R5TA provides manufacturer-recommended equivalent with identical electrical specifications and straight lead configuration. Seated height is 0.183", intermediate between KYOCERA AVX and Vishay options. ROHS3 compliant and active product.

Frequently Asked Questions (FAQ)

Q: Can SR075C102KARTR1 be used as a direct replacement for SR155C102KAT?

A: SR075C102KARTR1 is electrically equivalent with identical capacitance (1000 pF), tolerance (±10%), voltage rating (50V), and temperature coefficient (X7R). The primary difference is lead style (formed/kinked vs. straight) and reduced seated height (0.100" vs. 0.150"). Substitution is valid for applications where the lower profile and kinked lead configuration are compatible with PCB layout and assembly equipment.

Q: What is the difference between 50V and 100V rated parts?

A: The 100V rated parts (SR151C102KAR, SR151C102KARTR1, SR151C102KAATR1, K102K15X7RH53L2) maintain identical capacitance, tolerance, and temperature coefficient specifications but provide higher voltage margin. These parts are suitable for circuits where the operating voltage may approach or exceed 50V, or where design margin requirements necessitate higher voltage rating. The 100V parts are direct upgrades with no electrical performance penalty in 50V applications.

Q: Are KYOCERA AVX and Vishay Beyschlag parts interchangeable?

A: K102K10X7RF53L2, K102K15X7RF53L2, and K102K15X7RH53L2 from Vishay Beyschlag are electrically equivalent to their KYOCERA AVX counterparts with matching capacitance, tolerance, voltage rating, and temperature coefficient. Physical dimensions vary slightly; Vishay parts have greater seated heights (0.205" to 0.220" vs. 0.150"). Interchangeability depends on PCB layout constraints and assembly process compatibility. Both manufacturers' parts are ROHS3 compliant.

Q: What packaging options are available?

A: KYOCERA AVX parts are supplied in bulk packaging (SR155C102KAT, SR155C102KAA, SR155C102KAR, SR151C102KAR) or cut tape packaging (SR075C102KARTR1, SR151C102KAATR1, SR151C102KARTR1). Vishay Beyschlag and KEMET parts listed are bulk packaging. Packaging selection affects procurement, handling, and assembly processes but does not impact electrical performance.

Q: Is KEMET C315C102K5R5TA a suitable alternative?

A: C315C102K5R5TA is electrically equivalent with identical capacitance (1000 pF), tolerance (±10%), voltage rating (50V), and temperature coefficient (X7R). The part is ROHS3 compliant and active. Seated height is 0.183", between KYOCERA AVX (0.150") and Vishay (0.205"-0.220") options. Substitution is valid when cross-manufacturer sourcing is acceptable and PCB layout accommodates the intermediate height profile.

Q: Can I use a 100V rated part in a 50V circuit?

A: Yes. A 100V rated capacitor operates safely in a 50V circuit. The higher voltage rating provides additional safety margin and does not degrade performance. The 100V parts (SR151C102KAR, SR151C102KARTR1, SR151C102KAATR1, K102K15X7RH53L2) are direct upgrades suitable for any application using the 50V versions.

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