SPM6530T-2R2M High-current SMD Power Inductor for Antminer S9 Control Board
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SPM6530T-2R2M 2.2µH SMD Power Inductor for Antminer S9 Control Board
The SPM6530T-2R2M is a high-current SMD power inductor built with a magnetic metal core for improved superposition characteristics and low DC resistance. With a compact 7.1 x 6.5mm footprint and a low 3.0mm maximum height, it is the standard inductor used on Antminer S9 control board buck rails and similar low-profile, high-power point-of-load designs.
The iron-based metal core gives a large saturation induction, while the ~550°C Curie temperature provides plenty of margin in the thermal duty seen on a tightly packed control board. Low copper loss keeps the buck efficiency high at sustained mining loads.
Specifications
| Parameter | Value |
|---|---|
| Part number | SPM6530T-2R2M |
| Condition | New |
| Inductance | 2.2µH |
| Type | High-current SMD power inductor |
| Core | Magnetic metal (iron-based) |
| Footprint | 7.1 x 6.5mm |
| Maximum height | 3.0mm (low profile) |
| DC resistance | Low (high-current optimised) |
| Curie temperature | ~550°C |
| Application | Antminer S9 control board, laptop VRM and similar POL rails |
Where the SPM6530T-2R2M sits on the S9 control board
On an Antminer S9 control board, the 2.2µH SMD inductor sits next to the buck regulator that supplies the MCU and signal-side rails. The combination of high saturation current and low DC resistance keeps the rail stiff under transient loads — important when the MCU bursts into hashboard polling cycles. A failed inductor usually shows as audible whine, board reboots or a buck IC running thermal.
Compatibility
Direct replacement for the SPM6530T-2R2M inductor on Antminer S9 control boards. The same 7.1 x 6.5 x 3mm format is shared with laptop VRMs and other point-of-load designs — verify the footprint and silkscreen before substitution.
Common failure symptoms
- Audible whine from the inductor under load
- Buck regulator running hot or shutting down because the inductor has saturated
- Control board rail collapses under transient load
- Visible burn, cracked core or discoloured solder around the part
- Erratic MCU behaviour caused by noisy rail downstream of the inductor
Frequently asked questions
Is the SPM6530T-2R2M the same as a 2R2 silkscreen inductor?
The 2R2 silkscreen indicates 2.2µH on power inductors. The SPM6530T-2R2M is one of the specific footprints used on Antminer S9 control boards.
Can I use it on an L7 or KS5L control board?
The L7 and KS5L use different inductor footprints. Use this SPM6530T part on S9 control boards only.
What is the typical operating frequency?
Designs with this class of inductor typically run buck converters in the 300kHz to 1MHz range, sized for the chosen output ripple.
Do you stock other inductor values?
Yes — we carry HPC1050 family inductors in 2.2µH, 22µH and 100µH variants, plus the CD32-2R2M for Whatsminer CB4-V10.
Related products
- HPC1050-2.2µH High-Current SMD Power Inductor
- HPC1050-22µH High-Current SMD Power Inductor
- HPC1050-100µH High-Current SMD Power Inductor
- CD32 2.2µH SMD Inductor for Whatsminer CB4-V10
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