PCR0J122MCL1GS Equivalent & Substitute Parts

Part Overview

The PCR0J122MCL1GS is a 1200 µF, 6.3 V aluminum polymer capacitor manufactured by Nichicon in the PCR series. This surface mount component is designed for general purpose applications requiring stable capacitance and low equivalent series resistance. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. Active alternatives within the same electrical specifications and mechanical form factor are available to maintain design compatibility.

Substiute Parts

PCR0J122MCL1GS

NichiconIn Stock: 1057PCR0J122MCL1GS Datasheet

Current PartRFQ

PCJ0J122MCL1GS

NichiconIn Stock: 1949PCJ0J122MCL1GS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCR0J122MCL1GS is determined by strict equivalence in the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Capacitance value: 1200 µF (exact match required)
• Voltage rating: 6.3 V (exact match required)
• Capacitor type: Aluminum polymer (exact match required)
• Tolerance: ±20% (exact match required)
• Package type: Radial, Can - SMD (exact match required)
• Mounting type: Surface Mount (exact match required)
• Physical dimensions: 0.394" Dia (10.00 mm) and compatible height (exact match required)
• Surface mount land size: 0.406" L x 0.406" W (10.30 mm x 10.30 mm) (exact match required)

Secondary Parameters (Allowable Variation):

• ESR: Lower values are acceptable (12 mOhm substitute vs. 18 mOhm main part)
• Lifetime rating: Variation acceptable based on application thermal profile
• Operating temperature range: Substitute range must encompass or match main part range
• Ripple current capability: Higher values are acceptable

The PCJ0J122MCL1GS meets all primary substitution criteria and represents a direct functional equivalent with improved electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The PCJ0J122MCL1GS is a direct substitute for the obsolete PCR0J122MCL1GS based on electrical and mechanical equivalence. Both components are ROHS3 compliant and share identical capacitance, voltage rating, tolerance, and package specifications.

Selection Considerations:

The substitute part offers improved ESR performance (12 mOhm vs. 18 mOhm), resulting in lower heat dissipation and improved ripple current handling (5.025 A vs. 3 A at 100 kHz). The PCJ0J122MCL1GS is currently in active production status, ensuring long-term availability and supply chain stability.

Physical height differs by 0.079" (2.00 mm), with the substitute being taller. PCB layout and clearance verification is required to confirm mechanical compatibility in the target application. Both components use identical surface mount land sizes (0.406" L x 0.406" W), ensuring footprint compatibility.

The substitute operates within a narrower temperature range (-55°C ~ 105°C vs. -55°C ~ 125°C). Applications requiring sustained operation above 105°C require thermal profile assessment. The substitute's lifetime rating of 2000 Hrs @ 105°C is specified at a lower temperature than the main part's 4000 Hrs @ 125°C rating; equivalent lifetime at the substitute's rated temperature must be calculated based on application thermal conditions.

Frequently Asked Questions (FAQ)

Q: Can PCJ0J122MCL1GS directly replace PCR0J122MCL1GS without PCB modification?

A: Electrical substitution is direct. Mechanical compatibility requires verification of PCB clearance due to the 2.00 mm height difference. Surface mount land sizes are identical, so footprint modification is not required.

Q: What is the impact of the lower ESR in the substitute part?

A: Lower ESR (12 mOhm vs. 18 mOhm) reduces resistive losses and heat generation. This improves performance in high-ripple-current applications and extends component life under thermal stress.

Q: Are there temperature limitations when using the substitute?

A: The PCJ0J122MCL1GS operates to 105°C maximum, compared to 125°C for the main part. Applications requiring sustained operation above 105°C must use the original part or identify alternative solutions. The substitute is suitable for applications with maximum operating temperatures at or below 105°C.

Q: How do the lifetime ratings compare?

A: The main part is rated 4000 Hrs @ 125°C; the substitute is rated 2000 Hrs @ 105°C. These are specified at different temperatures. Equivalent lifetime at a given operating temperature depends on the specific thermal profile of the application and must be calculated using manufacturer-provided lifetime models.

Q: Is the substitute part readily available?

A: Yes. The PCJ0J122MCL1GS is in active production status with 1906 pieces in current inventory, compared to the obsolete PCR0J122MCL1GS. Long-term availability is assured.

Q: What are the compliance differences?

A: Both parts are ROHS3 compliant. The substitute is REACH Affected, while the main part is REACH Unaffected. Compliance requirements for the target application must be verified.