RJA331M1CBK-0811S Equivalent & Substitute Parts

Part Overview

The RJA331M1CBK-0811S is a 330 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by SURGE. This component is rated for 2000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently Active in product status with 809 units in stock.

Substitute parts become necessary when the primary manufacturer experiences supply constraints, discontinuation, or when design requirements mandate alternative sourcing options. The substitute identified maintains electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

RJA331M1CBK-0811S

SURGEIn Stock: 863RJA331M1CBK-0811S Datasheet

Current PartRFQ

UPS1C331MPD

NichiconIn Stock: 1997UPS1C331MPD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RJA331M1CBK-0811S is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 16 V (exact match required)
• Lifetime: 2000 Hrs @ 105°C (exact match required)
• Operating Temperature: -55°C to 105°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Parameters:

• Lead Spacing: 0.138" (3.50 mm) (exact match required)
• Size / Dimension: 0.315" Dia (8.00 mm) (exact match required)
• Height - Seated (Max): 0.512" (13.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)

The substitute part UPS1C331MPD meets all specified electrical, mechanical, and compliance criteria and is therefore classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: RJA331M1CBK-0811S (SURGE)

The RJA331M1CBK-0811S maintains Active product status and is the preferred selection when available. This part is ROHS3 compliant and carries full manufacturer support for new designs.

Substitute Part: UPS1C331MPD (Nichicon)

The UPS1C331MPD is classified as a parametric equivalent and serves as a direct substitute when the primary part is unavailable. However, this part carries a "Not For New Designs" product status designation. Selection of this substitute should be limited to replacement, repair, or continuation of existing designs where the primary part cannot be sourced.

Both parts meet identical electrical specifications, mechanical dimensions, and compliance requirements. The UPS1C331MPD demonstrates superior ripple current performance at low frequency (291.1 mA vs. 260 mA @ 120 Hz), which provides additional design margin in applications sensitive to ripple current characteristics.

Frequently Asked Questions (FAQ)

Q: Can UPS1C331MPD be used as a direct replacement for RJA331M1CBK-0811S in existing designs?

A: Yes. The UPS1C331MPD meets all electrical and mechanical specifications required for direct substitution. Both parts share identical capacitance (330 µF), voltage rating (16 V), tolerance (±20%), lifetime rating (2000 Hrs @ 105°C), operating temperature range (-55°C to 105°C), lead spacing (3.50 mm), physical dimensions (8.00 mm diameter, 13.00 mm height), and mounting configuration (through-hole radial can package).

Q: What is the significance of the "Not For New Designs" status on the UPS1C331MPD?

A: This designation indicates that Nichicon has classified the UPS series for mature product lines and does not recommend its use in new design initiatives. The part remains functionally equivalent and suitable for replacement applications, but new designs should prioritize the RJA331M1CBK-0811S or evaluate alternative active-status components.

Q: Are there any performance differences between these two parts?

A: The UPS1C331MPD exhibits higher ripple current capability at low frequency (291.1 mA @ 120 Hz compared to 260 mA @ 120 Hz for the RJA331M1CBK-0811S). This represents a performance advantage in the substitute part. Both parts maintain identical rated lifetime and temperature specifications.

Q: Do both parts require the same PCB footprint?

A: Yes. Both the RJA331M1CBK-0811S and UPS1C331MPD share identical lead spacing (0.138" / 3.50 mm) and physical dimensions (0.315" diameter / 8.00 mm, 0.512" height / 13.00 mm). No PCB layout modifications are required when substituting between these parts.

Q: Are both parts RoHS compliant?

A: Yes. Both the RJA331M1CBK-0811S and UPS1C331MPD are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.