LHL08NB822J Equivalent & Substitute Parts

Part Overview

The LHL08NB822J is an 8.2 mH unshielded ferrite core inductor manufactured by Taiyo Yuden, designed for through-hole radial mounting applications. This component operates at a maximum current rating of 84 mA with a DC resistance of 20 Ohm maximum and is rated for operating temperatures between -25°C and 105°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

LHL08NB822J

Taiyo YudenIn Stock: 871LHL08NB822J Datasheet

Current PartRFQ

RLB9012-822KL

Bourns Inc.In Stock: 4992RLB9012-822KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LHL08NB822J is based on the following critical parameters that must align across candidate parts:

Primary Matching Criteria:

• Inductance value: 8.2 mH (exact match required)
• Shielding configuration: Unshielded
• Core material: Ferrite
• Mounting type: Through hole
• Package configuration: Radial, vertical cylinder
• Physical dimensions: 0.354" diameter (9.00 mm)

Secondary Compatibility Factors:

• Current rating must equal or exceed 84 mA
• DC resistance must not exceed 20 Ohm maximum
• Operating temperature range must encompass the original specification
• RoHS3 compliance required

The RLB9012-822KL from Bourns Inc. satisfies the primary matching criteria with identical inductance, shielding, core material, mounting type, and package configuration. The substitute part provides enhanced current handling capability (180 mA versus 84 mA) and maintains RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The RLB9012-822KL from Bourns Inc. is an active product suitable for replacing the obsolete LHL08NB822J. Both components maintain ROHS3 compliance and share identical inductance values, core materials, and package configurations.

The substitute part provides superior current handling capacity at 180 mA, exceeding the original 84 mA specification. The DC resistance of 22.7 Ohm maximum is within acceptable tolerance of the original 20 Ohm maximum specification. The extended operating temperature range of -55°C to 125°C encompasses the original -25°C to 105°C range.

Physical compatibility is confirmed for diameter and radial mounting orientation. The height difference of 0.106" (2.70 mm) must be evaluated within the specific circuit board layout constraints of the application.

Frequently Asked Questions (FAQ)

Q: Can the RLB9012-822KL directly replace the LHL08NB822J in all applications?

A: The RLB9012-822KL matches the critical electrical parameters (8.2 mH inductance, ferrite core, unshielded configuration) and physical mounting requirements. The increased height of 0.480" versus 0.374" requires verification of available board space. The higher current rating and extended temperature range provide design margin.

Q: What is the significance of the inductance tolerance difference (±5% versus ±10%)?

A: The original LHL08NB822J specifies ±5% tolerance, while the RLB9012-822KL specifies ±10% tolerance. Applications requiring tighter inductance accuracy must account for this wider tolerance band in the substitute part.

Q: How do the Q factor differences affect circuit performance?

A: The LHL08NB822J exhibits a Q of 65 at 252 kHz, while the RLB9012-822KL exhibits a Q of 15 at the same frequency. Lower Q indicates higher losses. Applications sensitive to inductor losses or operating near the resonant frequency must evaluate this parameter against specific circuit requirements.

Q: Are there physical mounting considerations for the height difference?

A: The RLB9012-822KL seated height is 0.480" compared to 0.374" for the LHL08NB822J. This 0.106" difference must be confirmed against available clearance in the target application. Radial lead diameter remains identical at 0.354" (9.00 mm).

Q: What compliance certifications apply to both parts?

A: Both the LHL08NB822J and RLB9012-822KL are ROHS3 compliant. The RLB9012-822KL additionally carries REACH Unaffected status. Both parts are classified under ECCN EAR99 for export control purposes.

Q: Is the DC resistance increase from 20 Ohm to 22.7 Ohm acceptable?

A: The 2.7 Ohm increase represents a 13.5% rise in DC resistance. Applications where inductor losses directly impact circuit efficiency or thermal performance must evaluate this increase against design specifications.