PM105SB-820L-RC Equivalent & Substitute Parts

Part Overview

The PM105SB-820L-RC is a 82 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 790 mA continuous current with a maximum DC resistance of 280mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 765 units available in stock. Substitute parts are identified when equivalent inductance values, compatible mounting types, and acceptable electrical performance parameters align with application requirements.

Substiute Parts

PM105SB-820L-RC

Bourns Inc.In Stock: 820PM105SB-820L-RC Datasheet

Current PartRFQ

SDR1006-820KL

Bourns Inc.In Stock: 2930SDR1006-820KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SDR1006-820KL qualifies as a substitute based on the following alignment of critical parameters:

Matching parameters: Both parts share the same 82 µH inductance value, ferrite core material, surface mount configuration, nonstandard package type, and identical operating temperature range (-40°C to 125°C). Both are ROHS3 compliant and manufactured by Bourns Inc.

Acceptable variations: The SDR1006-820KL operates at 1 A current rating, which exceeds the PM105SB-820L-RC requirement of 790 mA, providing margin for application flexibility. The DC resistance of 250mOhm Max is lower than the 280mOhm Max specification, improving efficiency. The tolerance specification of ±10% is tighter than the ±15% of the main part.

Key difference: The SDR1006-820KL is unshielded, whereas the PM105SB-820L-RC is shielded. This distinction affects electromagnetic interference characteristics and must be evaluated based on circuit layout and EMI requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the PM105SB-820L-RC and SDR1006-820KL are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts depends on shielding requirements and current margin needs. The PM105SB-820L-RC is appropriate for applications requiring electromagnetic shielding to minimize radiated emissions or susceptibility to external fields. The SDR1006-820KL provides higher current capacity (1 A versus 790 mA) and lower DC resistance, making it suitable for applications where thermal efficiency and current headroom are priorities. Both parts operate identically across the specified temperature range and maintain ferrite core construction with surface mount configuration.

Frequently Asked Questions (FAQ)

Q: Can the SDR1006-820KL replace the PM105SB-820L-RC in all applications?

A: Substitution is valid when the application does not require electromagnetic shielding. The unshielded construction of the SDR1006-820KL may introduce coupling effects in sensitive circuits. Verify circuit layout and EMI specifications before substitution.

Q: What is the significance of the current rating difference?

A: The SDR1006-820KL is rated for 1 A continuous current, exceeding the PM105SB-820L-RC specification of 790 mA. This provides operational margin and reduces thermal stress in current-limited applications. Both parts remain within safe operating limits for circuits designed for 790 mA or less.

Q: Are the physical dimensions compatible?

A: Both parts use nonstandard package types with similar footprints. The PM105SB-820L-RC measures 0.390" L x 0.390" W x 0.189" H (9.90mm x 9.90mm x 4.80mm). The SDR1006-820KL measures 0.386" L x 0.386" W x 0.228" H (9.80mm x 9.80mm x 5.80mm). Height difference of 1.0mm may affect board layout in space-constrained designs.

Q: How do tolerance specifications affect circuit performance?

A: The PM105SB-820L-RC specifies ±15% tolerance, while the SDR1006-820KL specifies ±10%. Tighter tolerance of the substitute part reduces inductance variation across production batches, improving circuit consistency. Applications with strict inductance requirements benefit from the SDR1006-820KL specification.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and HTSUS code 8504.50.4000. Moisture sensitivity level is 1 (Unlimited) for both components, indicating no special moisture handling requirements during storage or assembly.