Hammond Manufacturing 1533H Equivalent & Substitute Parts

Part Overview

The Hammond Manufacturing 1533H is a 1 mH unshielded wirewound axial inductor rated for 160 mA with a maximum DC resistance of 19 Ohm. This through-hole component is designed for general-purpose inductance applications requiring fixed inductance values in compact axial packaging. The 1533H series is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

1533H

Hammond ManufacturingIn Stock: 7551533H Datasheet

Current PartRFQ

B82144A2105J000

EPCOS - TDK ElectronicsIn Stock: 58344B82144A2105J000 Datasheet

SimilarRFQ

B82144F1105J000

EPCOS - TDK ElectronicsIn Stock: 14181B82144F1105J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1533H are selected based on the following critical parameters that define functional equivalence:

• Inductance Value: Must be 1 mH ±5% tolerance
• Mounting Configuration: Through-hole axial package required
• Shielding Type: Unshielded construction
• Current Handling: Minimum 160 mA rating to support original application requirements
• Regulatory Compliance: ROHS3 compliance maintained across all substitutes

The EPCOS-TDK Electronics LBC series parts B82144A2105J000 and B82144F1105J000 meet these substitution criteria. Both are active production components with ferrite drum core construction, providing superior current ratings (200 mA and 280 mA respectively) and lower DC resistance values compared to the obsolete 1533H. These characteristics enable direct functional replacement while offering improved performance margins.

Parameter Comparison

Engineering Selection Recommendations

Both EPCOS-TDK Electronics substitute parts provide active production status with established supply chains, addressing the obsolescence of the 1533H. Selection between B82144A2105J000 and B82144F1105J000 depends on application current requirements:

B82144A2105J000 is suitable for applications requiring 160–200 mA operation, offering a direct current rating match to the original 1533H with additional headroom. This part provides the closest electrical performance profile to the original component.

B82144F1105J000 is appropriate for applications requiring higher current capacity up to 280 mA, delivering the lowest DC resistance (4.2 Ohm) among available substitutes. This part is recommended when thermal management or power dissipation is a design consideration.

Both substitutes maintain ROHS3 compliance and provide defined operating temperature ranges (-55°C to 125°C), supporting applications across industrial and commercial temperature environments. The ferrite drum core construction in both EPCOS-TDK parts delivers superior Q-factor stability and lower parasitic resistance compared to the original wirewound design.

Frequently Asked Questions (FAQ)

Q: Can B82144A2105J000 or B82144F1105J000 directly replace the 1533H in existing designs?

A: Yes, both parts are functionally equivalent for applications operating at or below 160 mA. The identical 1 mH inductance value and ±5% tolerance ensure electrical compatibility. Through-hole axial packaging matches the original footprint. Physical dimensions differ; verify PCB layout clearances before implementation.

Q: What is the significance of the lower DC resistance in the substitute parts?

A: The substitute parts exhibit significantly lower DC resistance (3.8–4.2 Ohm versus 19 Ohm). This reduces resistive losses and heat generation in the inductor, improving circuit efficiency. Applications sensitive to inductor losses will benefit from this improvement.

Q: How do the self-resonant frequency differences affect substitution?

A: The 1533H operates at 3.7 MHz self-resonant frequency, while substitutes operate at 1.2–2.2 MHz. This difference is relevant only for high-frequency applications approaching or exceeding these frequency limits. For standard low-frequency inductance applications, this parameter does not affect substitution validity.

Q: Are there packaging or mounting differences between the 1533H and substitute parts?

A: All three parts use through-hole axial packaging. Physical dimensions vary: the 1533H measures 0.563" diameter × 0.750" length, while substitutes are smaller (0.205–0.256" diameter × 0.362–0.472" length). PCB hole spacing and component clearances must be verified for each specific design.

Q: What compliance certifications apply to the substitute parts?

A: Both EPCOS-TDK substitutes are ROHS3 compliant and carry EAR99 export classification. Operating temperature range is specified as -55°C to 125°C, supporting industrial and commercial applications. The original 1533H does not specify operating temperature limits.