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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 | ||||||||
| RF-1/8N－ｅ | 7.5±0.5 | 6.5±0.5 | 5.08±0.2 | 1Ω～1MΩ | ||||||
| RF-1/4N－ｅ | 1/4 | 300 | 10±0.5 | 8±1 | 7.62±0.2 | |||||
| FLN401－ｅ | 7.5±0.5 | 8±0.5 | 5.08±0.2 | 10Ω～1MΩ | ||||||
| RF1/2H－ｅ | 1/2 | 10±0.5 | 8±1 | 7.62±0.2 | 1Ω～1MΩ | |||||
| RF-1/2N－ｅ | 350 | 12.5±0.5 | 10±0.5 | 10.16±0.2 | 1Ω～3MΩ | |||||
| RF-1/2E－ｅ | 17.5±0.5 | 8±0.5 | 15.24±0.2 | 10Ω～5MΩ | ||||||
| RF-1N－ｅ | 1 | 500 |
|
13±1 | 2.5±0.5 | 22.86±0.2 | 10Ω～10MΩ | |||
| RF-1H－ｅ | 2000 |
|
9±１ | 20.32±0.2 | 1MΩ～10MΩ | |||||
| RF-2N－ｅ (sub standard) |
2 | 500 |
|
17±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
| ■Temperature coefficient | unit：ppm/℃ | |||||
|---|---|---|---|---|---|---|
| type | ±25 | ±10 | ±5 | ±3 | ±2 | ±1 |
| sign | R | Q | P | N | M | L |
| ■Resistance value tolerance | 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℃ 5 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±5℃ for 3±0.5sec. (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） |
