Request Quote
(Ships tomorrow)
SPD73R-564M Equivalent & Substitute Parts Reference
Part Overview
The SPD73R-564M is a 560 µH shielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 350 mA continuous current with a maximum DC resistance of 4.67 Ohm. This surface mount component operates across the temperature range of -55°C to 125°C and is RoHS3 compliant. The part is currently active in production with 918 pieces available in inventory.
Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within alternative electrical specifications. The substitute inductors listed maintain the same inductance value (560 µH) and core material (ferrite) while offering different current ratings and DC resistance characteristics suitable for specific application requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Inductance | 560 | µH |
| Inductance Tolerance | ±20 | % |
| Current Rating | 350 | mA |
| DC Resistance (Max) | 4.67 | Ohm |
| Core Material | Ferrite | — |
| Shielding | Shielded | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -55 to 125 | °C |
| Package | Tape & Reel (TR) | — |
Substitute Part Grouping Explanation
Substitution eligibility for the SPD73R-564M is determined by the following critical parameters:
Mandatory Matching Criteria:
- Inductance value: 560 µH
- Inductance tolerance: ±20%
- Core material: Ferrite
- Shielding: Shielded
- Mounting type: Surface Mount
- Package format: Tape & Reel (TR)
- Physical footprint: 7.30 mm × 7.30 mm (0.287" × 0.287")
Variable Parameters (Application-Dependent):
- Current rating (350 mA for main part; 230 mA or 260 mA for substitutes)
- DC resistance (4.67 Ohm max for main part; 3.5 Ohm or 2.6 Ohm for substitutes)
- Operating temperature range (-55°C to 125°C for main part; -40°C to 125°C for substitutes)
- Saturation current (350 mA for main part; 250 mA or 300 mA for substitutes)
The substitute parts SRR0735A-561M and SRR0745A-561M from Bourns Inc. maintain electrical equivalence in inductance and core characteristics. Selection between these alternatives depends on the application's current requirements and acceptable DC resistance levels.
Parameter Comparison
| Parameter | SPD73R-564M (API Delevan) | SRR0735A-561M (Bourns) | SRR0745A-561M (Bourns) |
|---|---|---|---|
| Manufacturer | API Delevan Inc. | Bourns Inc. | Bourns Inc. |
| Inductance | 560 µH | 560 µH | 560 µH |
| Inductance Tolerance | ±20% | ±20% | ±20% |
| Current Rating | 350 mA | 230 mA | 260 mA |
| Saturation Current (Isat) | 350 mA | 250 mA | 300 mA |
| DC Resistance (Max) | 4.67 Ohm | 3.5 Ohm | 2.6 Ohm |
| Core Material | Ferrite | Ferrite | Ferrite |
| Shielding | Shielded | Shielded | Shielded |
| Operating Temperature | -55 to 125°C | -40 to 125°C | -40 to 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Physical Size | 7.30 × 7.30 mm | 7.30 × 7.30 mm | 7.30 × 7.30 mm |
| Height (Max) | 3.90 mm | 3.70 mm | 4.70 mm |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Product Status | Active | Active | Active |
Engineering Selection Recommendations
SPD73R-564M Selection Criteria: Select the SPD73R-564M when the application requires the highest current rating (350 mA) and can tolerate the maximum DC resistance of 4.67 Ohm. This part supports the widest operating temperature range (-55°C to 125°C), making it suitable for extreme environment applications. The part is active in production with substantial inventory availability (918 pieces).
SRR0735A-561M Selection Criteria: The SRR0735A-561M from Bourns is suitable for applications with current requirements up to 230 mA and where lower DC resistance (3.5 Ohm max) is beneficial for reducing power dissipation. This substitute offers AEC-Q200 automotive qualification and maintains a compact height of 3.70 mm. Inventory availability is high (4024 pieces). The operating temperature range is -40°C to 125°C, which covers standard industrial and commercial applications.
SRR0745A-561M Selection Criteria: The SRR0745A-561M is appropriate for applications with current requirements up to 260 mA and where the lowest DC resistance (2.6 Ohm max) is required for minimal power loss. This part also carries AEC-Q200 automotive qualification. The increased height of 4.70 mm must be verified against PCB layout constraints. Inventory availability is high (3892 pieces). Operating temperature range is -40°C to 125°C.
Compliance Considerations: All three parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8504.50.4000. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating, eliminating special storage or handling requirements.
Frequently Asked Questions (FAQ)
Q: Can SRR0735A-561M or SRR0745A-561M be used as direct replacements for SPD73R-564M?
A: Direct replacement depends on application current requirements. Both Bourns substitutes maintain the same 560 µH inductance, ±20% tolerance, ferrite core material, shielding, and surface mount configuration. However, the SPD73R-564M is rated for 350 mA continuous current, while SRR0735A-561M is rated for 230 mA and SRR0745A-561M for 260 mA. If the application draws current exceeding the substitute's rating, the substitute is not suitable. If application current is within the substitute's rating, substitution is electrically valid.
Q: What is the impact of different DC resistance values?
A: DC resistance directly affects power dissipation in the inductor. The SPD73R-564M has 4.67 Ohm maximum resistance, while SRR0735A-561M has 3.5 Ohm and SRR0745A-561M has 2.6 Ohm. Lower DC resistance reduces I²R losses. For example, at 260 mA, the SPD73R-564M dissipates approximately 0.32 W, while SRR0745A-561M dissipates approximately 0.18 W. Selection should account for thermal management requirements.
Q: Are there physical compatibility concerns?
A: All three parts share the same footprint (7.30 mm × 7.30 mm) and mounting type (surface mount). However, heights differ: SPD73R-564M is 3.90 mm, SRR0735A-561M is 3.70 mm, and SRR0745A-561M is 4.70 mm. Verify that the taller SRR0745A-561M does not interfere with adjacent components or enclosure constraints.
Q: What is the temperature range difference?
A: The SPD73R-564M operates from -55°C to 125°C, while both Bourns substitutes operate from -40°C to 125°C. If the application requires operation below -40°C, only the SPD73R-564M is suitable. For standard industrial and commercial temperature ranges, the Bourns substitutes are adequate.
Q: Do the Bourns parts have additional certifications?
A: Yes, both SRR0735A-561M and SRR0745A-561M carry AEC-Q200 automotive qualification, indicating compliance with automotive reliability standards. The SPD73R-564M does not list this certification in the provided data.
Q: How do saturation current ratings affect selection?
A: Saturation current (Isat) indicates the current level at which the inductor begins to lose inductance due to core saturation. SPD73R-564M has Isat of 350 mA, SRR0735A-561M has 250 mA, and SRR0745A-561M has 300 mA. For applications with current transients or peaks, ensure the substitute's Isat exceeds the maximum expected current to maintain inductance stability.
Q: Are all parts RoHS and REACH compliant?
A: Yes, all three parts are RoHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for EU and global markets.
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