SR155E333MAT Equivalent & Substitute Parts

Part Overview

The SR155E333MAT is a 0.033 µF ceramic capacitor rated at 50V 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 is currently active in production with 1092 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for procurement flexibility, inventory management, or supply chain continuity.

Substiute Parts

SR155E333MAT

KYOCERA AVXIn Stock: 1188SR155E333MAT Datasheet

Current PartRFQ

C315C333M5U5TA

KEMETIn Stock: 1933C315C333M5U5TA Datasheet

MFR RecommendedRFQ

C317C333M5U5TA

KEMETIn Stock: 3546C317C333M5U5TA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters:

• Electrical Specifications: Capacitance (0.033 µF), tolerance (±20%), voltage rating (50V), and temperature coefficient (Z5U) must be identical
• Mechanical Compatibility: Mounting type (through hole), package type (radial), and lead spacing must accommodate PCB layout requirements
• Regulatory Compliance: RoHS3 compliance and REACH status must be maintained

The identified substitute parts (C315C333M5U5TA and C317C333M5U5TA) from KEMET meet all electrical specifications. Physical dimensions vary in seated height and lead spacing, requiring PCB design verification for mechanical fit.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain identical electrical performance and regulatory compliance. Selection between the main part and substitutes depends on mechanical constraints:

SR155E333MAT (KYOCERA AVX): Minimum seated height (0.150") with 0.100" lead spacing. Optimal for space-constrained applications.

C315C333M5U5TA (KEMET): Increased seated height (0.183") with 0.100" lead spacing. Compatible with designs requiring standard 0.100" pitch but with additional vertical clearance.

C317C333M5U5TA (KEMET): Maximum seated height (0.200") with 0.200" lead spacing and formed leads. Suitable for applications with wider lead pitch requirements and higher vertical tolerance.

All parts are active products with current manufacturing status and full regulatory compliance (ROHS3, REACH Unaffected, EAR99 classification).

Frequently Asked Questions (FAQ)

Q: Can C315C333M5U5TA replace SR155E333MAT directly on the PCB?

A: Electrical substitution is valid. The 0.100" lead spacing matches the original design. Verify PCB clearance for the increased seated height (0.183" vs. 0.150").

Q: What is the difference between C315C333M5U5TA and C317C333M5U5TA?

A: Both are electrically identical. C315C333M5U5TA uses 0.100" lead spacing with straight leads. C317C333M5U5TA uses 0.200" lead spacing with formed leads and greater seated height (0.200"). Lead spacing selection depends on PCB hole pattern design.

Q: Are all three parts RoHS compliant?

A: Yes. SR155E333MAT, C315C333M5U5TA, and C317C333M5U5TA are all ROHS3 compliant with REACH Unaffected status.

Q: What determines if a substitute is acceptable for my application?

A: Electrical parameters (capacitance, voltage, tolerance, temperature coefficient) must match exactly. Mechanical fit requires verification of lead spacing and seated height against PCB design specifications.

Q: Can I use C317C333M5U5TA in a design originally specified for SR155E333MAT?

A: Electrical compatibility is confirmed. Mechanical compatibility requires PCB redesign due to different lead spacing (0.200" vs. 0.100") and increased seated height (0.200" vs. 0.150").