B82412A1682K Equivalent & Substitute Parts

Part Overview

The B82412A1682K is a 6.8 µH unshielded drum core wirewound inductor manufactured by EPCOS - TDK Electronics, rated for 120 mA maximum current with 4.6Ohm DC resistance. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part meets AEC-Q200 automotive qualification standards and operates across the -55°C to 125°C temperature range.

Substiute Parts

B82412A1682K

EPCOS - TDK ElectronicsIn Stock: 1155B82412A1682K Datasheet

Current PartRFQ

B82422A1682K100

EPCOS - TDK ElectronicsIn Stock: 3312B82422A1682K100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The B82422A1682K100 qualifies as a direct substitute based on the following critical parameters:

• Inductance Value: Both parts specify 6.8 µH with ±10% tolerance, ensuring electrical equivalence at the circuit level
• Core Material & Type: Both utilize ferrite drum core construction with unshielded configuration
• Mounting & Package: Both are surface mount 2-SMD components in 1210 (3225 Metric) package dimensions
• Operating Temperature Range: Both support -55°C to 125°C operation
• Compliance Standards: Both meet AEC-Q200 automotive qualification and ROHS3 requirements

The B82422A1682K100 represents an enhanced variant with improved electrical performance (135 mA current rating vs. 120 mA, 2.8Ohm DCR vs. 4.6Ohm), making it suitable for applications requiring higher current capacity or lower resistance characteristics within the same physical footprint.

Parameter Comparison

Engineering Selection Recommendations

The B82422A1682K100 is the recommended substitute for the obsolete B82412A1682K. Both components maintain identical inductance specifications and core construction, ensuring functional compatibility in existing circuit designs. The substitute part carries active product status with manufacturer support and improved availability (3250 pcs in stock vs. 1071 pcs for the original part).

The B82422A1682K100 provides superior electrical performance with 15 mA additional current capacity and 0.7Ohm lower DC resistance, making it suitable for applications with tighter thermal or current margin requirements. Both parts satisfy AEC-Q200 automotive qualification and ROHS3 compliance requirements. The marginal height increase (0.083" vs. 0.075") must be verified against PCB layout constraints in space-critical applications.

Frequently Asked Questions (FAQ)

Q: Can B82422A1682K100 directly replace B82412A1682K in existing designs?

A: Yes. Both parts share identical inductance values (6.8 µH ±10%), core material (ferrite), shielding configuration (unshielded), and package dimensions (1210/3225 Metric). The substitute offers improved current rating and lower DC resistance. Verify the 0.008" (0.20mm) height difference does not conflict with PCB assembly clearances.

Q: What are the key differences between these parts?

A: The B82422A1682K100 provides enhanced performance: 135 mA vs. 120 mA current rating, 2.8Ohm vs. 4.6Ohm maximum DC resistance, and J-Lead termination. The original B82412A1682K is obsolete; the substitute is active production.

Q: Are both parts AEC-Q200 qualified?

A: Yes. Both B82412A1682K and B82422A1682K100 meet AEC-Q200 automotive qualification standards and operate across -55°C to 125°C.

Q: Does the J-Lead termination on the substitute affect compatibility?

A: J-Lead termination is a lead form variation within the 2-SMD package family. Compatibility depends on PCB pad design. Standard 1210 (3225 Metric) footprints accommodate both lead configurations.

Q: What is the moisture sensitivity level for both parts?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.