Antenna/RFID Rods (3078990911)
78 ROD
78 Material
Inductive Components
Open Magnetic Circuit
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Part Number: 3078990911
78 ROD
Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
– The last digit 1 = Uncoated Rod and 4 = Parylene Coated Rod. Parylene C is RoHS compliant.
These rods are designed for use in antenna and RFID transponder applications. Rods are available in three materials to cover a frequency range from 50 kHz to 25 MHz. Suggested frequency ranges: 78 material < 200 kHz, 61 material 0.2 – 5.0 MHz and 67 material > 5.0 MHz.
The “Antenna/RFID Kit” (part number 0199000024) contains a selection of these rods.
For any rod requirement not listed here, feel free to contact our customer service group for availability and pricing.
Weight: 11.9 (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 8 | ±0.05 | 0.315 | _ |
| C | 45 | ±0.90 | 1.772 | _ |
| Electrical Properties | |
| μROD | 20 |
| Ae(cm2) | 0.503 |
A MnZn ferrite specifically designed for power applications for frequencies up to 200 kHz and low loss inductive applications to 500 kHz.
Available in 78 material:
RFID Rods
Toroids
Mated Parts
78 Material Characteristics
| Property | Unit | Symbol | Value |
| Initial Permeability @ B < 10 gauss | µi | 2300 | |
| Flux Density @ Field Strength | Gauss Oersted |
B H |
4800 5 |
| Residual Flux Density | Gauss | Br | 1500 |
| Coercive Force | Oersted | Hc | 0.20 |
| Loss Factor @ Frequency | 10 -6 MHz |
Tan δ/ µi | 3 0.1 |
| Temperature Coefficient of Initial Permeability (20 -70°C) | %/°C | 1.0 | |
| Curie Temperature | °C | Tc | >200 |
| Resistivity | ohm-cm | ρ | 200 |
**** Characteristic curves are measured on standard Toroids (18/10/6 mm) at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.
Material Safety Data Sheet (MSDS)
Click here to download Complex Permeability vs. Frequency (CSV)
Ferrite Material Constants
Storage and Operating Temperature
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