SR295E103MART Equivalent & Substitute Parts

Part Overview

The SR295E103MART is a 10000 pF ±20% 50V ceramic capacitor with Z5U temperature coefficient manufactured by KYOCERA AVX in the SkyCap® SR series. This radial through-hole component is designed for general-purpose applications and maintains active product status. Equivalent and substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance, temperature coefficient) and mechanical compatibility (lead spacing, mounting type, package configuration).

Key Parameters

Parameter	Value
Capacitance	10000 pF
Tolerance	±20%
Voltage - Rated	50V
Temperature Coefficient	Z5U
Operating Temperature Range	10°C ~ 85°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	0.100" (2.54mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SR295E103MART is determined by the following criteria:

Direct Electrical Equivalents match all critical parameters: 10000 pF capacitance, ±20% tolerance, 50V voltage rating, Z5U temperature coefficient, and 10°C ~ 85°C operating range. These parts are functionally interchangeable when lead spacing and physical dimensions permit board-level installation.

Lead Configuration Variants within direct electrical equivalents differ in lead style (formed leads, kinked leads, or straight leads) and physical dimensions. The SR295E103MART features formed leads with 0.200" L x 0.125" W dimensions. Smaller variants (0.150" L x 0.100" W) such as SR075E103MARTR1, SR155E103MAA, SR155E103MAR, and SR155E103MAT maintain identical electrical performance but require verification of PCB layout compatibility due to reduced footprint.

Cross-Manufacturer Equivalents from KEMET (C315C103M5U5TA, C320C103M5U5TA, C317C103M5U5TA) provide identical electrical specifications with ROHS3 compliance and REACH unaffected status. Physical dimensions vary by part number; C320C103M5U5TA matches the SR295E103MART footprint (0.200" L x 0.125" W), while C315C103M5U5TA and C317C103M5U5TA use smaller packages.

Voltage-Upgraded Alternatives (SR151E103MAR, C315C103M1U5TA, C320C103M1U5TA) provide 100V rating instead of 50V while maintaining 10000 pF capacitance and Z5U characteristics. These are suitable for applications requiring higher voltage margin but are not required for 50V circuit operation.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Temp Coeff	Size (L x W)	Lead Spacing	Lead Style	Packaging	Inventory
SR295E103MART	KYOCERA AVX	10000 pF	50V	±20%	Z5U	0.200" x 0.125"	0.100"	Formed Leads	Bulk	989 Pcs
SR075E103MARTR1	KYOCERA AVX	10000 pF	50V	±20%	Z5U	0.150" x 0.100"	0.100"	Formed Leads - Kinked	Cut Tape	4086 Pcs
SR155E103MAA	KYOCERA AVX	10000 pF	50V	±20%	Z5U	0.150" x 0.100"	0.100"	Straight	Bulk	4249 Pcs
SR155E103MAR	KYOCERA AVX	10000 pF	50V	±20%	Z5U	0.150" x 0.100"	0.100"	Straight	Bulk	1132 Pcs
SR155E103MAT	KYOCERA AVX	10000 pF	50V	±20%	Z5U	0.150" x 0.100"	0.100"	Straight	Bulk	3014 Pcs
SR151E103MAR	KYOCERA AVX	10000 pF	100V	±20%	Z5U	0.150" x 0.100"	0.100"	Straight	Bulk	2955 Pcs
C315C103M5U5TA	KEMET	10000 pF	50V	±20%	Z5U	0.150" x 0.100"	0.100"	Straight	Bulk	9856 Pcs
C320C103M5U5TA	KEMET	10000 pF	50V	±20%	Z5U	0.200" x 0.125"	0.100"	Straight	Bulk	3499 Pcs
C315C103M1U5TA	KEMET	10000 pF	100V	±20%	Z5U	0.150" x 0.100"	0.100"	Straight	Bulk	2925 Pcs
C320C103M1U5TA	KEMET	10000 pF	100V	±20%	Z5U	0.200" x 0.125"	0.100"	Straight	Bulk	3741 Pcs
C317C103M5U5TA	KEMET	10000 pF	50V	±20%	Z5U	0.150" x 0.100"	0.200"	Formed Leads	Bulk	6816 Pcs

Engineering Selection Recommendations

Footprint-Matched Substitutes for direct replacement without PCB modification:

C320C103M5U5TA (KEMET) provides identical 0.200" x 0.125" dimensions and 0.100" lead spacing as the SR295E103MART. Both are ROHS3 compliant and REACH unaffected. This part is suitable for 1:1 substitution in existing designs.

Compact Footprint Alternatives for space-constrained applications:

SR155E103MAA, SR155E103MAR, and SR155E103MAT (KYOCERA AVX) and C315C103M5U5TA (KEMET) reduce physical dimensions to 0.150" x 0.125" while maintaining electrical equivalence. These require PCB layout verification to confirm lead spacing and mounting hole compatibility.

Voltage-Rated Upgrades for enhanced circuit margin:

SR151E103MAR (KYOCERA AVX) and C315C103M1U5TA or C320C103M1U5TA (KEMET) provide 100V rating. These are electrically compatible with 50V circuit designs and offer increased voltage headroom. Physical dimensions remain consistent with their respective 50V counterparts.

Manufacturer Transition from KYOCERA AVX to KEMET:

C317C103M5U5TA (KEMET) is manufacturer-recommended and maintains 50V rating with identical capacitance and tolerance. Lead spacing differs at 0.200" versus 0.100", requiring PCB layout adjustment.

All recommended substitutes maintain ROHS3 compliance, REACH unaffected status, and active product status.

Frequently Asked Questions (FAQ)

Q: Can SR155E103MAA replace SR295E103MART directly on the PCB?

A: Electrical substitution is valid; both are 10000 pF ±20% 50V Z5U capacitors with 0.100" lead spacing. Physical dimensions differ (0.150" x 0.100" versus 0.200" x 0.125"), requiring confirmation that the smaller footprint fits the PCB layout and mounting holes.

Q: What is the difference between SR155E103MAA and SR155E103MAR?

A: Both parts are electrically identical (10000 pF, 50V, Z5U). The difference is lead style: SR155E103MAA has straight leads, while SR155E103MAR also has straight leads. Inventory levels differ (4249 Pcs versus 1132 Pcs). Selection depends on availability and lead forming requirements.

Q: Is C320C103M5U5TA a suitable replacement for SR295E103MART?

A: Yes. C320C103M5U5TA matches the SR295E103MART in capacitance (10000 pF), voltage (50V), tolerance (±20%), temperature coefficient (Z5U), and physical dimensions (0.200" x 0.125"). Both are ROHS3 compliant. The primary difference is manufacturer (KEMET versus KYOCERA AVX) and lead style (straight versus formed).

Q: When should I use the 100V rated parts (SR151E103MAR or C315C103M1U5TA)?

A: 100V rated parts are not required for 50V circuit operation. They are suitable when design margins require higher voltage rating or when circuit conditions may exceed nominal 50V specification. Electrical performance at 50V operation is identical to 50V-rated equivalents.

Q: Does lead spacing affect substitution compatibility?

A: Yes. Lead spacing of 0.100" versus 0.200" determines PCB hole pattern compatibility. C317C103M5U5TA uses 0.200" spacing (matching SR295E103MART) but requires verification of mounting hole alignment. Parts with 0.100" spacing (SR155E103MAA, C315C103M5U5TA) require different PCB layouts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the SR295E103MART.

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