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Bourns 9250-683 Equivalent & Substitute Parts
Part Overview
The Bourns 9250-683 is a 68 µH shielded drum core wirewound inductor rated for 170 mA with a maximum DC resistance of 2.7Ω. This through-hole axial component operates across -55°C to 105°C and features ferrite core construction with ±10% inductance tolerance. The 9250-683 is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 68 µH |
| Current Rating | 170 mA |
| DC Resistance (Max) | 2.7Ω |
| Saturation Current (Isat) | 150 mA |
| Shielding | Shielded |
| Core Material | Ferrite |
| Mounting Type | Through Hole |
| Package | Axial |
| Size | 0.162" Dia x 0.410" L (4.11mm x 10.41mm) |
| Operating Temperature Range | -55°C to 105°C |
| Tolerance | ±10% |
| Q @ 2.5 MHz | 50 |
| Self Resonant Frequency | 21 MHz |
Substitute Part Grouping Explanation
The Bourns 9250A-683-RC qualifies as a direct substitute based on the following critical parameters:
- Inductance Value: Both parts specify 68 µH with ±10% tolerance
- Current Rating: Both rated for 170 mA continuous operation
- DC Resistance: Both maintain 2.7Ω maximum
- Saturation Current: Both specify 150 mA Isat
- Shielding: Both are shielded designs
- Core Material: Both use ferrite core construction
- Mounting & Package: Both are through-hole axial components with identical physical dimensions (0.162" Dia x 0.410" L)
- Electrical Performance: Both exhibit Q of 50 @ 2.5 MHz and 21 MHz self-resonant frequency
The primary distinction lies in construction type (drum core versus molded) and product status (obsolete versus active), with the 9250A-683-RC offering improved compliance and extended temperature range.
Parameter Comparison
| Parameter | 9250-683 (Main Part) | 9250A-683-RC (Substitute) |
|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. |
| Inductance | 68 µH | 68 µH |
| Tolerance | ±10% | ±10% |
| Current Rating | 170 mA | 170 mA |
| Saturation Current (Isat) | 150 mA | 150 mA |
| DC Resistance (Max) | 2.7Ω | 2.7Ω |
| Shielding | Shielded | Shielded |
| Core Material | Ferrite | Ferrite |
| Core Type | Drum Core, Wirewound | Molded |
| Q @ 2.5 MHz | 50 | 50 |
| Self Resonant Frequency | 21 MHz | 21 MHz |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Axial | Axial |
| Size / Dimension | 0.162" Dia x 0.410" L (4.11mm x 10.41mm) | 0.162" Dia x 0.410" L (4.11mm x 10.41mm) |
| Operating Temperature Range | -55°C to 105°C | -55°C to 125°C |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The 9250A-683-RC is the active equivalent for the obsolete 9250-683. Selection criteria are based on product lifecycle and regulatory compliance:
Product Status: The 9250-683 is obsolete, while the 9250A-683-RC maintains active production status, ensuring long-term availability and supply chain continuity.
Compliance: The 9250A-683-RC is ROHS3 compliant, whereas the 9250-683 is non-compliant. For applications subject to RoHS regulations, the 9250A-683-RC is the required selection.
Temperature Range: The 9250A-683-RC extends the upper operating limit to 125°C compared to 105°C for the 9250-683, providing additional thermal margin in high-temperature environments.
Electrical Equivalence: Both parts maintain identical electrical specifications across inductance, current rating, DC resistance, saturation current, and frequency response characteristics, ensuring direct functional substitution.
Frequently Asked Questions (FAQ)
Q: Can the 9250A-683-RC replace the 9250-683 in existing designs?
A: Yes. The 9250A-683-RC is electrically and mechanically equivalent. Both parts share identical inductance (68 µH), current rating (170 mA), DC resistance (2.7Ω max), physical dimensions, and frequency response. The substitute is a direct replacement.
Q: What is the difference between drum core and molded construction?
A: The 9250-683 uses drum core wirewound construction, while the 9250A-683-RC uses molded construction. Both achieve identical electrical performance and shielding. Molded construction typically offers improved mechanical robustness and consistency in production.
Q: Does the extended temperature range of the 9250A-683-RC affect circuit performance?
A: No. The extended range (-55°C to 125°C versus -55°C to 105°C) represents an expanded operating envelope. Electrical parameters remain consistent within the overlapping temperature range of both parts.
Q: Are there packaging differences between these parts?
A: Both parts are supplied in through-hole axial packages with identical physical dimensions (0.162" Dia x 0.410" L). The 9250-683 is supplied in standard packaging, while the 9250A-683-RC is supplied in bulk packaging.
Q: Why is RoHS compliance important for this substitution?
A: RoHS3 compliance is a regulatory requirement in many markets. The 9250A-683-RC meets this requirement, while the 9250-683 does not. For new designs or applications in regulated regions, the 9250A-683-RC is the appropriate selection.
Q: Are the Q factor and self-resonant frequency identical?
A: Yes. Both parts specify Q of 50 @ 2.5 MHz and a self-resonant frequency of 21 MHz, confirming equivalent high-frequency performance.
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