Mn-Zn Soft Ferrite · 4H MnZn Ferrite
4H45 MnZn Ferrite
Series Overview: Core materials for lighting and automobile electronic components and LCD backlight inverters.
Material Parameters
| Parameter | Symbol | Test Condition | Typ. Values | Unit | Tol. |
|---|---|---|---|---|---|
| Initial Permeability | μi | — | 2000.00 | — | ±25% |
| Relative loss factor | tanδ/μi | — | 5.00 | ×10^-6 | — |
| Saturation Flux Density | Bs | — |
25°C
540.00
100°C
450.00
|
mT(1000A/m) | — |
| Remanence | Br | — | 130.00 | mT | — |
| Coercivity | Hc | — | 13.00 | A/m | — |
| Power Loss | Pc | f=25kHz,B=200mT |
60°C
90.00
80°C
75.00
100°C
80.00
|
kW/m³ | — |
| Power Loss | Pc | f=100kHz,B=200mT |
60°C
600.00
80°C
500.00
100°C
450.00
|
kW/m³ | — |
| Curie Temperature | Tc | — | 230.00 | ℃ | — |
| Resistivity | ρ | — | 2.00 | Ω·m | — |
| Density | d | — | 4.90 | kg/m³ ×10³ | — |
| Relative loss factor | tanδ/μi iac | 0.1MHz | — | ×10^-6 | — |
| Temperature Factor | α μ r | 20-80 | — | x10^-6 | — |
| Temperature Coefficient | αF | — | — | ×10^-6 | — |
| Hysteresis Material Constant | η | 10kHz 1.5~3.0mT | — | ×10^-6 | — |
Product Description
High saturation flux density: 4 H series
4H series materials are characterized by their high saturation flux density at temperature as high as 100℃, and are suitable for varieties of transformers and chokes used in areas such as green lighting and electronic components, also suitable for LCD back light inverter.
4H45 material has high saturation flux density of 450mT at 100℃ which is higher than that of any other materials, so it can be used to effectively suppress the phenomena that material saturation flux density decline as electrical and electronic devices’ temperature is rising. For these reasons, 4H45 material is usually used in automobile component which works under hot circumstance such as near a heating motor and so on. Compared to 6H20, 4H45 can reduce component’s volume by 15-20%, so can further minimize component.
Available Core Geometries & AL Values
| Core Shape | Dimensions / mm | Key Magnetic Params | AL Value (nH/N²) | Tolerance |
|---|---|---|---|---|
| EER19/12 |
A: 19.00
B: 6.20
C: 17.00
D: 5.50
E: 14.60
F: 3.60
|
Ae: 83.91 mm²
Le: 31.36 mm
Ve: 2631.20 mm³
|
4700.000 | ±25% |
| EER28/28 |
A: 28.60 ±0.5
B: 14.00 ±0.2
C: 11.40 ±0.25
D: 9.90 ±0.15
E: 21.20 min.
F: 9.60 +0.3/-0.2
|
Ae: 86.30 mm²
Le: 62.90 mm
Ve: 5430.00 mm³
|
2600.000 | ±25% |
| EER34/35 |
A: 35.00 +0/-1.6
B: 17.30 ±0.2
C: 11.10 +0/-0.6
D: 11.10 +0/-0.6
E: 25.60 +1.4/-0
F: 11.80 +0.6/-0
|
Ae: 97.00 mm²
Le: 79.00 mm
Ve: 7670.00 mm³
|
2400.000 | ±25% |
Cross-Reference / Competitor Equivalents
| Brand | Competitor Model | Similarity | Notes |
|---|---|---|---|
| DMEGC | DMR24 |
Drop-in Replacement | — |
| EPCOS | N92 |
Drop-in Replacement | — |
| FERRO XCUBE | 3C92 |
Drop-in Replacement | — |
| HITACHI | MB19D |
Drop-in Replacement | — |
| JFE | MB1 |
Drop-in Replacement | — |
| NICERA | BM27 |
Drop-in Replacement | — |
| NICERA | BM30 |
Drop-in Replacement | — |
| TDG | TP4E |
Drop-in Replacement | — |
| TDG | TP4G |
Drop-in Replacement | — |
| TDK | PC33 |
Drop-in Replacement | — |
| TDK | PC90 |
Drop-in Replacement | — |
| TOKIN | BH3 |
Drop-in Replacement | — |
* Cross-reference is for reference only. Please verify performance parameters before substitution.
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