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Equivalent & Substitute Parts for 1025-32K
Part Overview
The 1025-32K is a 3.3 µH unshielded axial inductor manufactured by API Delevan Inc., designed for through-hole mounting applications. This component operates across a temperature range of -55°C to 105°C with a current rating of 285 mA and a maximum DC resistance of 850mOhm. The part is classified as Active product status and complies with military specifications MIL-PRF-M15305 and MS75084. Substitute parts are identified to address packaging availability, compliance requirements, or inventory considerations while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 3.3 µH |
| Tolerance | ±10% |
| Current Rating | 285 mA |
| DC Resistance (Max) | 850mOhm |
| Shielding | Unshielded |
| Core Material | Iron |
| Q @ Frequency | 45 @ 7.9MHz |
| Self Resonant Frequency | 90MHz |
| Operating Temperature Range | -55°C to 105°C |
| Package / Case | Axial |
| Mounting Type | Through Hole |
| Size / Dimension | 0.095" Dia x 0.250" L (2.41mm x 6.35mm) |
Substitute Part Grouping Explanation
Substitution eligibility for the 1025-32K is determined by the following critical parameters:
- Inductance value: 3.3 µH with ±10% tolerance
- Current rating: 285 mA minimum
- DC resistance: 850mOhm maximum
- Core material: Iron
- Shielding configuration: Unshielded
- Package type: Axial through-hole
- Physical dimensions: 0.095" Dia x 0.250" L
- Operating temperature range: -55°C to 105°C
- Q factor and self-resonant frequency characteristics
The 1025R-32K qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. Differences in packaging format (Cut Tape versus Bulk) and RoHS compliance status do not affect functional interchangeability in circuit applications.
Parameter Comparison
| Parameter | 1025-32K | 1025R-32K |
|---|---|---|
| Manufacturer | API Delevan Inc. | API Delevan Inc. |
| Inductance | 3.3 µH | 3.3 µH |
| Tolerance | ±10% | ±10% |
| Current Rating (Amps) | 285 mA | 285 mA |
| DC Resistance (Max) | 850mOhm | 850mOhm |
| Shielding | Unshielded | Unshielded |
| Core Material | Iron | Iron |
| Q @ Frequency | 45 @ 7.9MHz | 45 @ 7.9MHz |
| Frequency - Self Resonant | 90MHz | 90MHz |
| Operating Temperature | -55°C to 105°C | -55°C to 105°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Axial | Axial |
| Size / Dimension | 0.095" Dia x 0.250" L (2.41mm x 6.35mm) | 0.095" Dia x 0.250" L (2.41mm x 6.35mm) |
| Product Status | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Both the 1025-32K and 1025R-32K maintain identical electrical and mechanical specifications, ensuring direct functional interchangeability. Selection between these parts should be based on the following criteria:
The 1025-32K is supplied in Cut Tape packaging and carries RoHS non-compliant status. This configuration is suitable for applications where RoHS compliance is not mandated and cut tape packaging meets assembly requirements.
The 1025R-32K is supplied in Bulk packaging and is ROHS3 compliant. This variant is appropriate for applications subject to RoHS3 regulatory requirements or where bulk packaging aligns with manufacturing processes. Both parts maintain Active product status and are manufactured by API Delevan Inc.
Frequently Asked Questions (FAQ)
Q: Can the 1025R-32K replace the 1025-32K in existing designs?
A: Yes. The 1025R-32K is electrically and mechanically identical to the 1025-32K. All critical parameters including inductance, current rating, DC resistance, frequency characteristics, and physical dimensions are equivalent. Substitution is valid from a functional standpoint.
Q: What is the difference between Cut Tape and Bulk packaging?
A: Cut Tape packaging supplies components on individual tape segments suitable for automated pick-and-place assembly. Bulk packaging supplies loose components. The packaging format does not affect component performance or electrical characteristics.
Q: Does RoHS compliance affect component performance?
A: No. RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both RoHS-compliant and non-compliant versions of this inductor deliver identical electrical specifications.
Q: Are there any temperature or frequency limitations when substituting?
A: No. Both parts operate across the identical temperature range (-55°C to 105°C) and maintain the same frequency characteristics (90MHz self-resonant frequency, Q factor of 45 @ 7.9MHz).
Q: Which part should be selected for new designs?
A: Selection depends on regulatory and packaging requirements. For applications requiring RoHS3 compliance, specify the 1025R-32K. For applications without RoHS requirements, either part is acceptable based on packaging availability and procurement preferences.
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