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Bourns 2103-H 15µH Toroidal Inductor Equivalent & Substitute Parts
Part Overview
The Bourns 2103-H is a 15 µH unshielded toroidal inductor rated for 7.7 A with a maximum DC resistance of 12 mOhm. This through-hole component is designed for radial, horizontal mounting applications. The 2103-H carries an obsolete product status, making identification of suitable alternatives essential for ongoing production and maintenance applications. The active substitute maintains identical electrical and mechanical specifications while offering improved compliance status and current inventory availability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 15 µH |
| Inductance Tolerance | ±15% |
| Current Rating | 7.7 A |
| DC Resistance (Max) | 12 mOhm |
| Type | Toroidal, Unshielded |
| Mounting Type | Through Hole |
| Package / Case | Radial, Horizontal (Open) |
| Operating Temperature Range | -55°C to 105°C |
| Physical Dimension (Diameter) | 0.860" (21.84 mm) |
| Height - Seated (Max) | 0.450" (11.43 mm) |
| Series | 2100 |
Substitute Part Grouping Explanation
Substitution of the Bourns 2103-H is determined by strict equivalence across the following electrical and mechanical parameters:
- Inductance value: 15 µH
- Inductance tolerance: ±15%
- Current rating: 7.7 A minimum
- DC resistance: 12 mOhm maximum
- Inductor type: Toroidal, unshielded
- Mounting configuration: Through hole, radial horizontal
- Physical dimensions: 0.860" diameter, 0.450" maximum seated height
- Operating temperature range: -55°C to 105°C
The substitute part 2103-H-RC meets all these criteria and is manufactured by the same supplier (Bourns Inc.) within the same 2100 series. Substitution is valid only when all parameters listed above are maintained within specification.
Parameter Comparison
| Parameter | 2103-H (Main Part) | 2103-H-RC (Substitute) |
|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. |
| Series | 2100 | 2100 |
| Inductance | 15 µH | 15 µH |
| Inductance Tolerance | ±15% | ±15% |
| Current Rating (Amps) | 7.7 A | 7.7 A |
| DC Resistance (Max) | 12 mOhm | 12 mOhm |
| Type | Toroidal, Unshielded | Toroidal, Unshielded |
| Shielding | Unshielded | Unshielded |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Radial, Horizontal (Open) | Radial, Horizontal (Open) |
| Size / Dimension | 0.860" Dia (21.84 mm) | 0.860" Dia (21.84 mm) |
| Height - Seated (Max) | 0.450" (11.43 mm) | 0.450" (11.43 mm) |
| Operating Temperature | -55°C to 105°C | -55°C to 105°C |
| Inductance Frequency - Test | 1 kHz | 1 kHz |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8504.50.4000 | 8504.50.4000 |
Engineering Selection Recommendations
The 2103-H-RC is the direct substitute for the obsolete 2103-H. Both parts are electrically and mechanically identical across all specified parameters. The primary distinction is product status and regulatory compliance:
The 2103-H carries obsolete status with RoHS non-compliant certification. The 2103-H-RC maintains active product status with ROHS3 compliance, making it suitable for applications subject to RoHS3 regulatory requirements. Both parts maintain identical REACH and ECCN classifications.
For new designs or ongoing production requiring RoHS3 compliance, the 2103-H-RC is the appropriate selection. For legacy applications where RoHS3 compliance is not required, either part meets the electrical and mechanical specifications. Current inventory availability favors the 2103-H-RC (1334 pcs) over the 2103-H (876 pcs).
Frequently Asked Questions (FAQ)
Q: Can the 2103-H-RC be used as a direct replacement for the 2103-H in existing designs?
A: Yes. The 2103-H-RC is electrically and mechanically identical to the 2103-H. All electrical parameters (inductance, current rating, DC resistance, operating temperature) and physical dimensions are equivalent. The parts are pin-compatible and require no circuit modifications.
Q: What is the difference between the 2103-H and 2103-H-RC?
A: The primary differences are product status and regulatory compliance. The 2103-H is obsolete and RoHS non-compliant. The 2103-H-RC is active and ROHS3 compliant. Electrical and mechanical specifications are identical.
Q: Are there packaging differences between these parts?
A: The 2103-H is supplied in standard packaging. The 2103-H-RC is supplied in bulk packaging. Both maintain identical component specifications and physical dimensions.
Q: What parameters must remain constant for substitution?
A: Substitution requires equivalence in inductance (15 µH ±15%), current rating (7.7 A), DC resistance (12 mOhm max), toroidal unshielded type, through-hole radial horizontal mounting, physical dimensions (0.860" diameter, 0.450" max height), and operating temperature range (-55°C to 105°C).
Q: Is the 2103-H-RC suitable for RoHS3 regulated applications?
A: Yes. The 2103-H-RC carries ROHS3 compliance certification, making it suitable for applications subject to RoHS3 requirements. The 2103-H is RoHS non-compliant and is not suitable for such applications.
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