Big Deye 5kW Inverter (SUN-5K-SG01/SG03/LP1-EU/AU) Teardown 2025 - Inductors, Transformers | Part 3
Intro
This page has a lot off high-res photos with some analysis of the modern solar hybrid inverter DEYE SUN-5K-SG01/03/LP1-EU/AU.
⏭️ Because device has a lot of components I'm still updating article with more details. Moreover, article separated on several parts due to a lot of photos:
Sources
📦 All photos also available in archive (100MB+) : Teardown_DEYE_Inverter_SUN-5K-SG0103LP1-EUAU_refcircuit.com.zip
T-V1.1 (2023-2-1)
Measured Parameters
| Inductor | L@1kHz | R | W | Q | A | Overall Dimensions | Notes |
| 1 LV | 466.2 | 43.7mOhm | 2 wings 3*30 in parallel LV: 2.8mm Wire: 0.3mm*30 | 66.984 | - | - | - |
| 1 HV | 10.33mH | 1.025Ohm | 13 wings 1*100 HV: 1.6mm Wire: 0.1mm or smaller*100 | 63.288 | - | - | Litz wire |
| 2 LV | 505.5uH | 41.5mOhm | 2 wings 3*30 in parallel | 76.553 | - | - | - |
| 2 HV | 11.23mH | 1.507Ohm | 13 wings 1*100 | 75.35 | - | - | Litz wire |
Actual Measurements
| Inductor | Auto Mode | |
| 2 LV |  |  |
| 2 HV |  |  |
Photos
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PV BOOST INDUCTOR
Measured Parameters
| Inductor | L@1kHz | R | W | Q | A | Overall Dimensions | Notes |
| L1 | 844.4uH | 39.4mOhm | - | 134.56 | - | - | - |
| L2 | 806.3uH | 37.7mOhm | - | 134.56 | - | - | - |
Actual Measurements
| Inductor | Auto Mode |
| L1 |  |
| L2 |  |
Photos
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PV DCDC INDUCTOR
Measured Parameters
| Inductor | L@1kHz | R | W | Q | A | Overall Dimensions | Notes |
| L3 | 596.7uH | 23.7mOhm | - | 157.88 | - | - | - |
| L4 | 587.4uH | 24.7mOhm | - | 149.52 | - | - | - |
Actual Measurements
| Inductor | Auto Mode |
| L3 |  |
| L4 |  |
Photos
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PV CMC TRANSFORMER
This filter connected between HV side of transformer and H-bridge. It's rated for 20A (based on 14AWG wires), which is corresponds to the PV current input range.
Measured Parameters
| Inductor | L@1kHz | R | W | Q | A | Overall Dimensions | Notes |
| TA | 1.069mH | 380.4mOhm | 2 | 17.633 | 12AWG 3512 SILICONE | - | - |
| TB | 1.049mH | 389.7mOhm | 2 | 17.240 | 12AWG 3512 SILICONE | - | - |
Actual Measurements
| Inductor | Auto Mode |
| TA |  |
| TB |  |
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T644020 CORE
User should use this if need.
- Material: amorphous nanocrystalline
- Label: ES5618 64*40*20 M240725
- Note: shell has bigger sizes than actual core
Measured Parameters
| Inductor | AL@1kHz | R | W | Q | A | Overall Dimensions | Notes |
| 141.7uH | - | 1 | - | - | - |
Actual Measurements
| Inductor | Auto Mode |
| AL=141.7uH1 1V@1kHz |  |
| AL=132.5uH 1V@10kHz |  |
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Table
I found it on Ali:
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Disassembly
Tip: use saw tool to cut plastic.
Core made from thin foil of amorphous nanocrystalline metal fusion.
Article: Nanocrystalline Cores for High Power Inverters
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PV CMC CORE ES5196
User should use this if need.
- Material: -
- Label: ES5884
- Note: shell has bigger sizes than actual core
Measured Parameters
| Inductor | AL@1kHz | R | W | Q | A | Overall Dimensions | Notes |
| 80.2uH | - | 1 | - | - | - |
Actual Measurements
| Inductor | Auto Mode |
| AL=uH1 1V@1kHz |  |
| AL=uH 1V@10kHz |  |
Photos
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SMALL CORE ES5196
User should use this if need.
- Material: -
- Label: ES5196
- Note: shell has bigger sizes than actual core
Measured Parameters
| Inductor | AL@1kHz | R | W | Q | A | Overall Dimensions | Notes |
| 58.4 | - | 1 | - | - | - |
Actual Measurements
| Inductor | Auto Mode |
| AL=58.4uH1 1V@1kHz |  |
| AL=51.6uH 1V@10kHz |  |
Photos
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GREEN CORE
User should use this if need.
- Material: -
- Label: -
- Note: shell has bigger sizes than actual core
Measured Parameters
| Inductor | AL@1kHz | R | W | Q | A | Overall Dimensions | Notes |
| 2.9 | - | 1 | - | - | - |
Actual Measurements
| Inductor | Auto Mode |
| AL=2.9uH1 1V@1kHz |  |
| AL=2.3uH 1V@10kHz |  |
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What do you mean by PV dcdc? Where exactly is it connected to ?
Each PV input has simple boost (step-up) converter (Cin, Cout, L, Transistor and Diode):
Additionally it work as ORing and MPPT.
Since it has two PV inputs then it has two boost converters. So, these inductors are part of these DC-DC boost (step-up) converters. Physically they're connected using FASTON terminals to the main board: