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Radial Leads


Thin Film Resistors


Achieving wide-ranging and high-precision resistance values

Features

  • The form is a square plate-type solid, which allows higher mounting density.
  • The structure of the lead frame is in the same direction, so the number of assembly steps can be reduced.
  • Temperature coefficient and current noise are low, and frequency properties are superior. High-frequency trimming surge countermeasures are also possible.
  • Superior long-term reliability, with small changes over time.
  • We can create made-to-order items with not-standard resistance values, to the designer’s desired resistance values, with short delivery times.

Type and shape dimensions

Model name Rated power
(W)
Maximum
working
voltage
(V)
a b t p d Resistance value range
RF-1/10H-e 1/10 100 5±0.5 7.5±0.5 2.2±0.5 2.54±02 0.5±0.1 10Ω~1MΩ
FLN801-e 1/8 250 5±0.5 7.5±0.5 2.2±0.5 2.54±02 0.5±0.1 10Ω~1MΩ
RF-1/8N-e 250 7.5±0.5 7±0.5 2.2±0.5 5.08±0.2 0.5±0.1 1Ω~1MΩ
RF-1/4N-e 1/4 300 10±0.5 8±1 2.2±0.5 7.62±0.2 0.5±0.1 1Ω~1MΩ
FLN401-e 7.5±0.5 8±0.5 2.2±0.5 5.08±0.2 0.5±0.1 10Ω~1MΩ
RF1/2H-e 1/2 350 10±0.5 8±1 2.2±0.5  7.62±0.2 0.5±0.1 1Ω~1MΩ
RF-1/2N-e 12.5±0.5 10±0.5 2.2±0.5 10.16±0.2 0.5±0.1 1Ω~3MΩ
RF-1/2E-e 17.5±0.5 8±0.5 2.2±0.5 15.24±0.2 0.5±0.1 10Ω~5MΩ
RF-1N-e 1 500
25 +1-0.5
13±1 2.5±0.5 22.86±0.2 0.5±0.1 10Ω~10MΩ 
RF-1H-e 2000
23.5 +1-0.5
9±1 2.5±0.5 20.32±0.2 0.5±0.1 1MΩ~10MΩ
RF-2N-e
(sub standard)
2 500
22.5 +1-0.5
17±1 2.5±0.5 20.32±0.2 0.5±0.1 10Ω~5MΩ

The suffix -e indicates lead-free RoHS compliance.
We provide 11 standard types in terms of rated power and form. Resistance values impose some constraints on temperature coefficient of resistance specifications, so please consult us.


Type and shape dimensions

■Resistance value tolerance unit:ppm/℃
type ±25 ±10 ±5 ±3 ±2 ±1
sign R Q P N M L
■Temperature coefficient unit:%
type ±1 ±0.5 ±0.25 ±0.1 ±0.05 ±0.02 ±0.01
sign F D C B A Q T

Labeling symbols

Labeling consists of marking with the nominal resistance value, temperature coefficient, resistance value tolerance, an abbreviation for Flat Electronics, and the date of manufacture.

■ Year and month of manufacture labeling
Year 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026
sign 5 6 7 8 9 0 1 2 3 4 5 6
Month 1 2 3 4 5 6 7 8 9 10 11 12
sign 1 2 3 4 5 6 7 8 9 X Y Z

Characteristics

項  目 試験条件 FLAT-OHM EIAJ-RC-2650 MIL-R-10509F-C
Maximum rated operating temperature   70℃ 70℃ 125℃
Maximum usage temperature   155℃ 155℃ 175℃
Temperature coefficient of resistance   ±1~25ppm/℃
(RQPNML)
±10ppm/℃、±25ppm/℃
±50ppm/℃、±100ppm/℃
±50ppm/℃
Temperature cycle -55℃~155℃
100 cycles
±(0.1%+0.05Ω) ±(0.25%+0.05Ω) ±(0.25%+0.05Ω)
Short-term overload 2.5 times the rated voltage,
applied for 5 sec.
±(0.1%+0.05Ω) ±(0.25%+0.05Ω) ±(0.25%+0.05Ω)
Solder heat resistance 350°C for 3 sec.
(at 1 mm from the root of terminals)
±(0.05%+0.05Ω) ±(0.1%+0.05Ω) ±(0.1%+0.05Ω)
Moisture resistance load lifespan 40℃、95%terms of rated 、
intermittent load for 1,000 hours
±(0.1%+0.05Ω) ±(0.5%+0.05Ω) ±(0.5%+0.05Ω)
Load lifespan 70℃terms of rated 、
intermittent load for 1,000 hours
±(0.1%+0.05Ω) ±(0.5%+0.05Ω) ±(0.5%+0.05Ω)
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