3225R-682K Fixed Inductor Equivalent & Substitute Parts

Part Overview

The 3225R-682K is a 6.8 µH unshielded ferrite core inductor manufactured by API Delevan Inc., rated for 321 mA continuous current with a maximum DC resistance of 1.8Ohm. This surface mount component is housed in a 1210 (3225 Metric) package and operates across the temperature range of -55°C to 125°C.

The 3225R-682K carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for systems utilizing this inductor specification.

Substiute Parts

3225R-682K

API Delevan Inc.In Stock: 10763225R-682K Datasheet

Current PartRFQ

1210R-682K

API Delevan Inc.In Stock: 9431210R-682K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3225R-682K is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Inductance value: 6.8 µH (±10% tolerance)
• Current rating: 321 mA minimum
• DC resistance: 1.8Ohm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded
• Operating temperature range: -55°C to 125°C minimum

Mechanical & Environmental Equivalence Requirements:

• Mounting type: Surface Mount
• Package compatibility: 1210 (3225 Metric) or equivalent footprint
• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)

The 1210R-682K from API Delevan Inc. meets all electrical and environmental specifications. While it carries an Active product status (compared to the Obsolete status of the 3225R-682K), it maintains identical inductance, current rating, DC resistance, core material, and operating temperature range. Both components are manufactured by the same supplier and share equivalent regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 1210R-682K is a direct electrical equivalent to the 3225R-682K. Both components deliver identical inductance, current handling capacity, and DC resistance specifications. The substitute part maintains full compliance with ROHS3 and REACH requirements, ensuring regulatory alignment with the original component.

The primary distinction between these parts is product lifecycle status: the 3225R-682K is classified as Obsolete, while the 1210R-682K maintains Active status. This status difference, combined with the 1210R-682K's higher Q factor (30 versus 25 at 7.9MHz), positions the substitute as a viable long-term alternative for new designs and ongoing production support.

Physical dimensions show minimal variation. The 1210R-682K exhibits a maximum height increase of 0.007" (0.17mm) compared to the original part. This marginal difference is within typical PCB layout tolerances for surface mount applications and does not present clearance constraints in standard circuit board designs.

Frequently Asked Questions (FAQ)

Q: Can the 1210R-682K be used as a direct replacement for the 3225R-682K in existing designs?

A: Yes. Both components share identical electrical specifications: 6.8 µH inductance, 321 mA current rating, and 1.8Ohm maximum DC resistance. The physical dimensions are equivalent within standard manufacturing tolerances, and both are surface mount components with identical mounting requirements.

Q: What is the significance of the different package designations (1210 versus 2-SMD)?

A: The 1210 designation refers to the metric package size (3225 Metric), while 2-SMD indicates a two-pad surface mount configuration. Both designations describe the same physical footprint and mounting interface. The components are mechanically and electrically compatible for PCB assembly.

Q: Why is the 1210R-682K listed as Active while the 3225R-682K is Obsolete?

A: Product status reflects the manufacturer's current production and support status. The 1210R-682K remains in active production, ensuring ongoing availability and supply chain continuity. The 3225R-682K has reached end-of-life status. Transitioning to the Active substitute part supports long-term design sustainability.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the 3225R-682K and 1210R-682K carry identical ROHS3 compliance and REACH Unaffected status. Moisture sensitivity level is 1 (Unlimited) for both components. Regulatory and environmental certifications are equivalent.

Q: Does the higher Q factor of the 1210R-682K (30 versus 25) affect circuit performance?

A: The Q factor difference reflects the quality factor at 7.9MHz test frequency. A higher Q factor indicates lower losses at this frequency. For most applications, this represents an improvement in inductor efficiency. Circuit performance impact depends on specific application requirements and operating frequencies.

Q: What are the dimensional tolerances for PCB layout considerations?

A: The 1210R-682K maximum seated height is 0.101" (2.57mm) compared to 0.094" (2.40mm) for the 3225R-682K. This 0.007" (0.17mm) difference is negligible for standard PCB designs. Length and width dimensions are within 0.002" (0.06mm) of each other, ensuring footprint compatibility.