RFM High Frequency MELF Resistors
TOKEN
High Frequency
Non-Inductance
Melf Resistors
Non-Inductance MELF Offer Greater Choice
for High Frequency Applications
Preview
The RFM speciality series of high frequency non-inductance MELF resistor from Token Electronics has
been extended to offer more than GHz operation, making the devices more suitable for high frequency RF
applications.
They are the perfect choice in high frequency circuit designs where the parasitic inductance of regular, helical
trimmed resistors can not be accepted, but where also pulse energies apply. Typical applications are in the fields
of telecommunication equipment and industrial electronics.
These high stability, non-inductance MELF resistors have a footprint very close to comparable chip resistors
but maintain their tolerance and deliver higher stability over a wider temperature range. Sizes range from 5.7 x
2.1mm for the RFM74 MELF-0207, through 3.45 x 1.3mm for the RFM73 MELF-0204 down to 2.2 x 1.3mm for
the RFM72 MELF-0102.
Production is strictly controlled and follows and extensive set of instructions established for reproducibility.
The groove on the metal alloy film of high grade ceramic rod is special designed to achieve non inductance. The
resistor elements are covered by a protective coating designed for mechanical, electrical and climatic protection.
The terminations are covered with a final pure tin plating for keeping perfect solderability. Four or five color
code rings designate the resistance value and tolerance in accordance with IEC 60062.
Token’s RFM MELF standard series can be a replacement for Vishay, IRC, EBG, KAO, Panasonic Precision
Devices with more competitive price and short lead time. Contact us with your specific needs.
Features
- Lead (Pb)-free and RoHS compliant.
- Ower dissipation rating at 70°C up to 0.75W.
- Low-inductance non-helical trimmed product.
- Special metal film technology, DIN: 0102, 0204, 0207.
- Tolerance range: ±0.5% to ±5.0%; Resistance range: 25Ω to 200Ω.
- Suitable for more than GHz operation; Excellent overall stability:
Class 0.5.
Applications :
- Medical Equipment.
- Industrial electronics.
- Automatic Equipment Controller.
- Communication Device, Cell phone, GPS, PDA.
- HF and pulse loading applications.
- Testing & Measurement Equipment.
- Consumer Product, Printer Equipment.
Version 2010
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