VJ1206A2R2DXAMC Equivalent & Substitute Parts

Part Overview

The VJ1206A2R2DXAMC is a 2.2 pF ceramic capacitor manufactured by Vishay Vitramon in the 1206 (3216 Metric) surface mount package. This component operates at 50V with C0G/NP0 temperature coefficient characteristics, suitable for general purpose applications requiring stable capacitance across the operating temperature range of -55°C to 150°C. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent parts are identified when manufacturers discontinue production, supply constraints occur, or design flexibility permits component sourcing from alternative suppliers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	2.2 pF	Must match exactly
Tolerance	±0.5pF	Must match or be tighter
Voltage Rating	50V	Must match or exceed
Temperature Coefficient	C0G, NP0	Must match exactly
Package / Case	1206 (3216 Metric)	Must match for PCB compatibility
Mounting Type	Surface Mount, MLCC	Must match for assembly process
RoHS Status	ROHS3 Compliant	Must maintain compliance
MSL Rating	1 (Unlimited)	Must match or exceed

Substitute Part Grouping Explanation

Substitution eligibility for the VJ1206A2R2DXAMC is determined by strict alignment with the following electrical and mechanical parameters:

Mandatory Match Criteria:

Capacitance value: 2.2 pF (exact match required)
Tolerance: ±0.5pF (substitute tolerance must not exceed this range)
Voltage rating: 50V minimum (equal or higher acceptable)
Temperature coefficient: C0G/NP0 (exact match required)
Package designation: 1206 (3216 Metric) (exact match required)
Mounting technology: Surface Mount MLCC (exact match required)

Compliance Requirements:

RoHS3 compliance mandatory
MSL rating of 1 or better acceptable

The identified substitute C1206C229D5GAC7800 from KEMET satisfies all mandatory criteria. Physical dimension variations within the 1206 package specification are permissible provided PCB footprint compatibility is maintained.

Parameter Comparison

Parameter	VJ1206A2R2DXAMC (Vishay Vitramon)	C1206C229D5GAC7800 (KEMET)	Compatibility
Capacitance	2.2 pF	2.2 pF	Match
Tolerance	±0.5pF	±0.5pF	Match
Voltage Rating	50V	50V	Match
Temperature Coefficient	C0G, NP0	C0G, NP0	Match
Operating Temperature Range	-55°C ~ 150°C	-55°C ~ 125°C	Substitute range narrower; acceptable for applications within -55°C ~ 125°C
Package / Case	1206 (3216 Metric)	1206 (3216 Metric)	Match
Size / Dimension	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	Match
Thickness (Max)	0.067" (1.70mm)	0.035" (0.88mm)	Substitute thinner; acceptable for PCB clearance
Mounting Type	Surface Mount, MLCC	Surface Mount, MLCC	Match
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
MSL Rating	1 (Unlimited)	1 (Unlimited)	Match

Engineering Selection Recommendations

The C1206C229D5GAC7800 from KEMET is a direct electrical and mechanical substitute for the VJ1206A2R2DXAMC. Both components maintain Active product status and full RoHS3 compliance. Selection between these parts should be based on:

Availability and Lead Time: Verify current inventory levels and procurement timelines from authorized distributors.

Operating Temperature Requirements: The KEMET substitute operates to 125°C maximum, compared to 150°C for the Vishay part. Confirm application requirements do not exceed 125°C ambient or component temperature conditions.

Physical Clearance: The KEMET part is thinner (0.88mm vs 1.70mm), which may provide additional PCB clearance in space-constrained designs. Verify no mechanical interference with adjacent components or assembly fixtures.

Supply Chain Strategy: Both manufacturers maintain Active status. Dual-sourcing both parts provides supply chain resilience.

Frequently Asked Questions (FAQ)

Q: Can the C1206C229D5GAC7800 be used as a direct replacement on existing PCBs designed for the VJ1206A2R2DXAMC?

A: Yes. Both parts share identical electrical specifications (2.2 pF, ±0.5pF, 50V, C0G/NP0) and package footprint (1206/3216 Metric). The KEMET part is physically thinner, which does not affect PCB compatibility. Verify application operating temperature does not exceed 125°C.

Q: What is the significance of the temperature coefficient designation C0G/NP0?

A: C0G and NP0 are equivalent designations for the same temperature coefficient characteristic, indicating capacitance change of ±30 ppm/°C across the operating temperature range. This stability is critical for precision RF and timing circuits. Both the main part and substitute maintain this specification.

Q: Are there differences in ESL (Equivalent Series Inductance) between these parts?

A: The KEMET substitute is noted as having Low ESL characteristics. ESL performance is not specified for the Vishay part in the provided data. If ESL is a critical parameter for the application, contact the manufacturer for detailed specifications.

Q: Does the thinner profile of the KEMET part affect soldering or assembly?

A: No. The thinner profile (0.88mm vs 1.70mm) remains within standard 1206 package specifications and is compatible with standard surface mount assembly processes. Verify with your assembly partner if specific reflow profiles are required.

Q: What is MSL 1 (Unlimited) and why does it matter?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. Both parts carry this rating, eliminating moisture sensitivity as a substitution constraint.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the VJ1206A2R2DXAMC and C1206C229D5GAC7800 are RoHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

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