Fair-Rite 7895400321 Planar Cores Set Instructions
- June 17, 2024
- Fair-Rite
Table of Contents
Fair-Rite 7895400321 Planar Cores Set
Product Information
Specifications
- Part Number: 7895400321
- Product Name: Planar Cores
- Weight: 10.5g
Description:
The Planar Cores (Part Number: 7895400321) are low-profile cores suitable
for board level installation. They are designed for applications where plastic
coilformers are not required and can be integrated into multilevel PCBs. The
Planar Cores are available in three variants: Planar EE, Planar ER, and Planar
EI. The Planar EE and EI cores are suitable for board level installation,
while the Planar ER cores are ideal for surface mount installations in low
power filter and transformer applications.
Electrical Properties
- Ve (Effective Core Volume): 2.06 cm3
- Amin (Effective Cross-Sectional Area): 0.79 cm2
- AL Value (Inductance Factor): Measured at 1 kHz, B < 10 gauss
Catalog Drawing and 3D Model:
You can find the catalog drawing and 3D model of the Planar Cores on
Arrow.com.
Product Usage Instructions
Installation:
To install the Planar Cores, follow these steps:
- Select the appropriate Planar Core variant (EE, ER, or EI) based on your application requirements.
- Ensure that the center post of the core is gapped to the desired mechanical dimension or AL value, if required.
- Place the Planar Core on the PCB or surface mount pad, aligning it with the appropriate connections.
- Solder or secure the Planar Core in place using suitable techniques.
Integration into Multilevel PCBs:
If you wish to integrate the Planar Cores into multilevel PCBs, follow
these additional steps:
- Design the PCB with appropriate space and connections to accommodate the Planar Cores.
- Ensure that the windings are integrated into the PCB at the desired locations.
- Follow the installation steps mentioned above to secure the Planar Cores onto the PCB.
FAQ (Frequently Asked Questions)
-
Q: What are the different variants of Planar Cores available?
A: The Planar Cores are available in three variants: Planar EE, Planar ER, and Planar EI. -
Q: What are the applications suitable for Planar ER cores?
A: Planar ER cores are suitable for surface mount installations in low power filter and transformer applications. -
Q: Where can I find the catalog drawing and 3D model of the Planar Cores?
A: You can find the catalog drawing and 3D model of the Planar Cores on Arrow.com.
Planar Cores (7895400321)
- Part Numbe r: 7895400321
95 PLANAR EI CORE SET
- Planar EE and EI cores, with their low profile are suitable for board level installation allowing assembly without the need for plastic coil formers and can also allow windings integrated into multi-level
- PCBs. Planar ER cores with their low mass and low profile are suitable for Surface Mount installations in low power filter and transformer applications.
- Planar EE, ER and EI cores can be supplied with the center post gapped to a mechanical dimension, or an AL value.
Catalog Drawing
3D Model
Weight: 10.5 (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
|---|---|---|---|---|
| A | 21.8 | ± 0.40 | 0.858 | _ |
| B | 5.7 | ± 0.15 | 0.224 | _ |
| C | 15.8 | ± 0.35 | 0.622 | _ |
| D | 3.2 | ± 0.15 | 0.126 | _ |
| E | 16.8 | ± 0.40 | 0.661 | _ |
| F | 5 | ± 0.20 | 0.197 | _ |
| G | 2.5 | ± 0.15 | 0.098 | _ |
Electrical Properties
AL(nH)| 6200 ±25%
Ae(cm2)| 0.79
Σl/A(cm-1)| 3.3
le(cm)| 2.61
Electrical Properties
3 Ve(cm )| 2.06
2 Amin(cm )| 0.79
AL value is measured at 1 kHz, B < 10 gauss.
Fair-Rite Products Corp. • One Commercial Row, Wallkill, New York 12589-0288
888-324-7748 •
845-895-2055 • Fax:
845-895-2629 • ferrites@fair-
rite.com • www.fair-rite.com
Downloaded from Arrow.com.