OP31B683K201CT Equivalent & Substitute Parts

Part Overview

The OP31B683K201CT is a ceramic multilayer capacitor (MLCC) in 1206 package format with X7R dielectric, manufactured by Walsin Technology Corporation. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement needs. The part maintains ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), making it suitable for general-purpose applications requiring stable capacitance across temperature ranges.

Substiute Parts

OP31B683K201CT

Walsin Technology CorporationIn Stock: 1037OP31B683K201CT Datasheet

Current PartRFQ

C1206F683K2RAC7800

KEMETIn Stock: 7344C1206F683K2RAC7800 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP31B683K201CT is determined by strict equivalence across the following electrical and mechanical parameters:

• Capacitance Value: 0.068 µF (68 nF) exact match
• Tolerance: ±10% minimum requirement
• Voltage Rating: 200V minimum
• Temperature Coefficient: X7R dielectric type
• Package Format: 1206 (3216 Metric) surface mount
• Compliance: ROHS3 compliance and MSL 1 rating

The identified substitute C1206F683K2RAC7800 from KEMET satisfies all substitution criteria. This part is currently in active production status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The C1206F683K2RAC7800 from KEMET is the direct equivalent for the obsolete OP31B683K201CT. Selection is based on:

• Electrical Equivalence: Identical capacitance (0.068 µF), tolerance (±10%), voltage rating (200V), and temperature coefficient (X7R)
• Mechanical Compatibility: Identical 1206 package dimensions and surface mount configuration
• Compliance Alignment: Both parts maintain ROHS3 compliance and MSL 1 rating
• Supply Continuity: The substitute part is in active production status, ensuring availability for current and future procurement cycles

No additional design modifications or circuit validation are required when substituting the OP31B683K201CT with C1206F683K2RAC7800, provided the application operates within the specified electrical and thermal parameters.

Frequently Asked Questions (FAQ)

Q: Can C1206F683K2RAC7800 be used as a direct replacement for OP31B683K201CT?

A: Yes. Both parts share identical electrical specifications (0.068 µF, ±10%, 200V, X7R) and mechanical dimensions (1206 package). The substitute is functionally equivalent and requires no circuit modifications.

Q: What is the difference between the main part and substitute in terms of availability?

A: OP31B683K201CT is obsolete and no longer manufactured. C1206F683K2RAC7800 is in active production, ensuring reliable long-term supply and procurement stability.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity). Compliance certifications are equivalent.

Q: Does the packaging format affect substitution?

A: The substitute is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. The component itself maintains identical 1206 package dimensions and mounting characteristics.

Q: What parameters must remain constant for substitution validity?

A: Capacitance value (0.068 µF), tolerance (±10%), voltage rating (200V), temperature coefficient (X7R), and package format (1206) are the critical parameters determining substitution compatibility. All are matched between the main part and substitute.