VJ1206A3R9DXJCW1BC Equivalent & Substitute Parts

Part Overview

The VJ1206A3R9DXJCW1BC is a 3.9 pF ceramic capacitor manufactured by Vishay Vitramon in the 1206 (3216 Metric) surface mount package. This C0G/NP0 temperature coefficient capacitor operates at 16V rated voltage with ±0.5pF tolerance across an operating temperature range of -55°C to 125°C. The part is ROHS3 compliant with MSL 1 rating and is currently in active production status with 837 units in stock.

Substitute parts are identified when they maintain the same capacitance value, package form factor, temperature coefficient classification, and mounting technology while potentially offering improved electrical performance characteristics or enhanced availability.

Substiute Parts

VJ1206A3R9DXJCW1BC

Vishay VitramonIn Stock: 946VJ1206A3R9DXJCW1BC Datasheet

Current PartRFQ

C1206C399C5GAC7800

KEMETIn Stock: 1817C1206C399C5GAC7800 Datasheet

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KGM31BCG1H3R9CT

KYOCERA AVXIn Stock: 10335KGM31BCG1H3R9CT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VJ1206A3R9DXJCW1BC are qualified based on the following criteria:

Critical Parameters (Must Match):

• Capacitance: 3.9 pF
• Package / Case: 1206 (3216 Metric)
• Temperature Coefficient: C0G, NP0
• Mounting Type: Surface Mount, MLCC
• Operating Temperature Range: -55°C ~ 125°C minimum

Allowable Variations:

• Voltage Rating: May exceed 16V (higher voltage rating is acceptable for same application)
• Tolerance: May be tighter than ±0.5pF (±0.25pF is acceptable)
• Thickness: Minor variations within package specification
• RoHS and MSL compliance maintained

The identified substitutes meet all critical parameters and maintain or improve upon the electrical specifications of the original part.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are qualified alternatives to the VJ1206A3R9DXJCW1BC based on matching critical electrical and mechanical parameters.

C1206C399C5GAC7800 (KEMET): This part offers a 50V voltage rating with tighter ±0.25pF tolerance and includes Low ESL characteristics. It maintains identical package dimensions and all compliance certifications. Current inventory is 1751 units.

KGM31BCG1H3R9CT (KYOCERA AVX): This part provides a 50V voltage rating with ±0.25pF tolerance. It maintains identical package dimensions and all compliance certifications. Current inventory is 10270 units, providing superior availability.

Both substitutes are ROHS3 compliant with MSL 1 rating and active product status. Selection between substitutes may be based on availability, packaging preference (Tape & Reel), or supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can I use a 50V rated capacitor in place of a 16V rated capacitor? A: Yes. A higher voltage rating is acceptable for the same application. The 50V rated substitutes are electrically compatible and will function correctly in circuits designed for 16V operation.

Q: What is the significance of the tighter ±0.25pF tolerance in the substitute parts? A: The substitute parts offer improved tolerance compared to the original ±0.5pF specification. This tighter tolerance provides greater precision in capacitance value and may be beneficial in applications requiring strict component matching.

Q: Are the package dimensions identical across all three parts? A: The package form factor is identical (1206 / 3216 Metric). Thickness varies slightly: VJ1206A3R9DXJCW1BC at 0.90mm, C1206C399C5GAC7800 at 0.88mm, and KGM31BCG1H3R9CT at 0.94mm. These variations remain within standard 1206 package specifications and do not affect PCB assembly compatibility.

Q: Do all parts maintain the same temperature coefficient? A: Yes. All three parts are C0G/NP0 temperature coefficient capacitors with identical operating temperature range of -55°C to 125°C.

Q: What is the difference between C0G and NP0 designations? A: C0G and NP0 are equivalent designations for the same temperature coefficient classification. Both terms refer to capacitors with negligible capacitance change across the operating temperature range.

Q: Are all parts RoHS compliant? A: Yes. All three parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level rating.