Request Quote
(Ships tomorrow)
SDR0703-8R2M Equivalent & Substitute Parts
Part Overview
The SDR0703-8R2M is an 8.2 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.1 A continuous current with a maximum DC resistance of 150mOhm. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The part operates across a temperature range of -40°C to 125°C and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 8.2 µH |
| Inductance Tolerance | ±20% |
| Current Rating | 1.1 A |
| Saturation Current (Isat) | 1.5 A |
| DC Resistance (DCR) | 150 mOhm Max |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q Factor @ 7.96 MHz | 20 |
| Self Resonant Frequency | 40 MHz |
| Operating Temperature Range | -40°C to 125°C |
| Mounting Type | Surface Mount |
| Package Dimensions | 6.50 mm L × 4.50 mm W × 2.70 mm H |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the SDR0703-8R2M is determined by strict equivalence across the following critical parameters:
- Inductance value: 8.2 µH
- Inductance tolerance: ±20%
- Current rating: 1.1 A minimum
- Saturation current: 1.5 A minimum
- DC resistance: 150 mOhm maximum
- Core material: Ferrite
- Shielding configuration: Unshielded
- Operating temperature range: -40°C to 125°C minimum
- Mounting type: Surface Mount
- Physical dimensions: 6.50 mm × 4.50 mm × 2.70 mm maximum
The SDR0703-8R2ML meets all specified parameters and qualifies as a direct substitute. The primary distinction between these parts is product status and packaging configuration.
Parameter Comparison
| Parameter | SDR0703-8R2M (Main Part) | SDR0703-8R2ML (Substitute) |
|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. |
| Series | SDR0703 | SDR0703 |
| Inductance | 8.2 µH | 8.2 µH |
| Tolerance | ±20% | ±20% |
| Current Rating | 1.1 A | 1.1 A |
| Saturation Current | 1.5 A | 1.5 A |
| DC Resistance | 150 mOhm Max | 150 mOhm Max |
| Core Material | Ferrite | Ferrite |
| Shielding | Unshielded | Unshielded |
| Q @ 7.96 MHz | 20 | 20 |
| Self Resonant Frequency | 40 MHz | 40 MHz |
| Operating Temperature | -40°C to 125°C | -40°C to 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package Dimensions | 6.50 mm × 4.50 mm × 2.70 mm | 6.50 mm × 4.50 mm × 2.70 mm |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Packaging | Nonstandard | Tape & Reel (TR) |
Engineering Selection Recommendations
The SDR0703-8R2ML is the direct equivalent substitute for the obsolete SDR0703-8R2M. Both parts are manufactured by Bourns Inc. within the SDR0703 series and maintain identical electrical and mechanical specifications across all critical parameters.
The SDR0703-8R2ML carries Active product status, ensuring continued availability and supply chain reliability. Both parts maintain ROHS3 compliance and are unaffected by REACH regulations, satisfying regulatory requirements for current applications.
The primary operational difference is packaging configuration: the SDR0703-8R2M uses nonstandard packaging, while the SDR0703-8R2ML is supplied in Tape & Reel format. This distinction affects procurement and assembly processes but does not impact electrical performance or thermal characteristics.
Frequently Asked Questions (FAQ)
Q: Can the SDR0703-8R2ML be used as a direct replacement for the SDR0703-8R2M?
A: Yes. The SDR0703-8R2ML is electrically and mechanically equivalent to the SDR0703-8R2M across all specified parameters, including inductance, current rating, DC resistance, core material, and operating temperature range.
Q: What is the difference between these two part numbers?
A: The SDR0703-8R2M is classified as obsolete, while the SDR0703-8R2ML is active. The SDR0703-8R2ML is supplied in Tape & Reel packaging, whereas the SDR0703-8R2M uses nonstandard packaging. Electrical specifications are identical.
Q: Are there any compliance or certification differences?
A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings (MSL 1 - Unlimited). Regulatory status is equivalent.
Q: What are the critical parameters for substitution?
A: Substitution requires matching inductance (8.2 µH ±20%), current rating (1.1 A), saturation current (1.5 A), DC resistance (150 mOhm maximum), ferrite core material, unshielded configuration, and surface mount package dimensions (6.50 mm × 4.50 mm × 2.70 mm).
Q: Does packaging format affect circuit performance?
A: No. Tape & Reel packaging is a supply and assembly convenience format. It does not alter electrical characteristics, thermal performance, or frequency response of the inductor.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts