SR155C102MAT Equivalent & Substitute Parts

Part Overview

The SR155C102MAT is a 1000 pF 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 and is ROHS3 compliant. The part is currently active in production with 1,083 units in stock. Equivalent and substitute parts are identified based on matching capacitance, voltage rating, temperature coefficient, and mechanical compatibility within the radial through-hole package category.

Key Parameters

Parameter	SR155C102MAT
Capacitance	1000 pF
Tolerance	±20%
Voltage Rating	50V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.100" (2.54mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the SR155C102MAT is determined by the following critical parameters:

Capacitance Value: 1000 pF (exact match required)
Voltage Rating: 50V minimum (equal or higher acceptable)
Temperature Coefficient: X7R (required for temperature stability)
Mounting Type: Through Hole Radial (mechanical compatibility)
Lead Spacing: 0.100" (2.54mm) nominal (board layout compatibility)
Tolerance: ±20% or tighter (±10% acceptable as upgrade)

Substitute parts are grouped into three categories:

KYOCERA AVX SkyCap® SR Series – Same manufacturer, same series, varying tolerance and voltage ratings
Vishay Mono-Kap™ K Series – Alternative manufacturer, same electrical specifications, different physical dimensions
KEMET GoldMax 300 Comm X7R Series – Alternative manufacturer, same electrical specifications, larger physical footprint

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Lead Spacing	Height (Max)	RoHS Status
SR155C102MAT	KYOCERA AVX	1000 pF	±20%	50V	X7R	0.100"	0.150"	ROHS3
SR075C102KARTR1	KYOCERA AVX	1000 pF	±10%	50V	X7R	0.100"	0.100"	ROHS3
SR151C102KAR	KYOCERA AVX	1000 pF	±10%	100V	X7R	0.100"	0.150"	ROHS3
SR155C102KAA	KYOCERA AVX	1000 pF	±10%	50V	X7R	0.100"	0.150"	ROHS3
SR155C102KAR	KYOCERA AVX	1000 pF	±10%	50V	X7R	0.100"	0.150"	ROHS3
K102M15X7RF53L2	Vishay	1000 pF	±20%	50V	X7R	0.098"	0.220"	ROHS3
K102K10X7RF53L2	Vishay	1000 pF	±10%	50V	X7R	0.098"	0.205"	ROHS3
K102K15X7RF53L2	Vishay	1000 pF	±10%	50V	X7R	0.098"	0.220"	ROHS3
K102K15X7RH53L2	Vishay	1000 pF	±10%	100V	X7R	0.098"	0.220"	ROHS3
C320C102M5R5TA	KEMET	1000 pF	±20%	50V	X7R	0.100"	0.290"	ROHS3

Engineering Selection Recommendations

KYOCERA AVX SkyCap® SR Series Substitutes (SR075C102KARTR1, SR151C102KAR, SR155C102KAA, SR155C102KAR)

These parts maintain the same manufacturer and series designation. SR155C102KAA and SR155C102KAR are direct mechanical equivalents with improved ±10% tolerance. SR151C102KAR provides higher voltage rating (100V) while maintaining the same footprint. SR075C102KARTR1 offers tighter tolerance with reduced seated height (0.100" vs 0.150"), suitable for space-constrained applications. All are ROHS3 compliant and active in production.

Vishay Mono-Kap™ K Series Substitutes (K102M15X7RF53L2, K102K10X7RF53L2, K102K15X7RF53L2, K102K15X7RH53L2)

These parts provide electrical equivalence with different physical dimensions. Lead spacing is 0.098" (2.50mm) versus 0.100" (2.54mm) on the original part, requiring board layout verification. Seated heights range from 0.205" to 0.220", exceeding the original 0.150". K102K10X7RF53L2 and K102K15X7RF53L2 offer ±10% tolerance upgrades. K102K15X7RH53L2 provides 100V rating. All are ROHS3 compliant and active in production with high inventory availability.

KEMET GoldMax 300 Comm X7R Substitute (C320C102M5R5TA)

This part matches electrical specifications with ±20% tolerance. Physical dimensions are larger (0.200" L x 0.125" W, 0.290" seated height) compared to the original 0.150" L x 0.100" W, 0.150" seated height. Lead spacing is 0.100" (2.54mm), matching the original. ROHS3 compliant and active in production with 12,699 units in stock.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with ±10% tolerance instead of ±20%?

A: Yes. A tighter tolerance (±10%) is a functional upgrade and maintains circuit performance. The substitute will operate within a narrower capacitance range, which is acceptable for general-purpose applications.

Q: What is the impact of different lead spacing (0.098" vs 0.100")?

A: Lead spacing affects board layout compatibility. A 0.002" (0.05mm) difference is within typical PCB manufacturing tolerances for radial through-hole components. Verify board hole spacing before substitution.

Q: Can I use a 100V-rated part in place of a 50V part?

A: Yes. A higher voltage rating (100V) is a functional upgrade and maintains circuit safety margins. The part will operate correctly in 50V applications.

Q: How do physical dimensions affect substitution?

A: Radial through-hole components must fit within available board space. Seated height and body dimensions vary among substitutes. Verify clearance above and around the component location before substitution. Vishay parts have greater seated heights (0.205" to 0.220") compared to the original (0.150").

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the original part's environmental compliance status.

Q: What determines if a part is a direct substitute?

A: Direct substitution requires matching capacitance (1000 pF), voltage rating (50V minimum), temperature coefficient (X7R), mounting type (through-hole radial), and lead spacing (0.100" nominal). Tolerance and physical dimensions may vary while maintaining functional equivalence.

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