Low Ohmic Ultra Precision Resistors (NE)
DeMint advanced film (NE) low resistance ultra precision resistors spell high precision.
A homogenous film of metal alloy is deposited on a high grade ceramic body. After a helical groove has been cut in the resistive layer, tinned connecting wires of electrolytic copper are welded to the end-caps.
The resistors are moulding which provides electrical, mechanical, and climatic protection.
DeMint has complete capability to develop specific reliability programs designed to customer requirements. Products equate Vishay, Ohmite, Caddock, IRC, EBG, Panasonic Precision Devices with more competitive price and fast delivery.
Full line products meet RoHS compliant. Detailed specifications, both mechanical and electrical, can be download here Low Ohmic Ultra Precision Resistor PDF (318KB), or contact our sales representative for more information.
MIL-PRF-55182 :
The NE series meets the electrical, environmental and dimensional requirements of MIL-PRF-55182.
Referencing to Chinese National Quality Standard GJB244A-2001.
Power ratings are based on the following two conditions,
- ± 2.0 % maximum ΔR in 10 000 h load life.
- + 175 °C maximum operating temperature.
- Measuring and calibration equipment
- Industrial process control systems
- Space and aircraft electronics
- Test and measurement
- Telecom
- DeMint NE Series meets MIL-PRF-55182 and GJB244A-2001 quality standards.
- Controlled temperature coefficient and narrowed to C7 (±5PPM/°C).
- Extensive stocking program at distributors and factory.
- Extreme precision tolerance tight to A5(±0.05%).
- Caps range of ultra low resistance 0.05Ω ~ 10Ω.
- Excellent stability and High reliability.
- Industrial grades, RoHS Compliant.
- Metal film moulding type
| Dimensions & Technical Characteristics (NE) | ||||||||
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| Type | NE1/20 | NE1/10 | NE1/8 | NE1/4 | NE1/2 | |||
| Rated Wattage (W) | 70 °C | 0.125 (1/8W) | 0.25 (1/4W) | 0.5 (1/2W) | 0.75 W | 1 W | ||
| Max. Working Voltage (V) | 200V | 200V | 250V | 300V | 350V | |||
| Resistance Range (Ω) | 0.05 ~ 10 | 0.05 ~ 10 | 0.05 ~ 10 | 0.05 ~ 10 | 0.05 ~ 10 | |||
| Dimensions (Unit: mm) | L ± 0.3 | 4.3 | 6.8 | 10.2 | 15.1 | 18.4 | ||
| D ± 0.4 | 1.9 | 2.5 | 3.8 | 5.2 | 6.5 | |||
| A ± 0.05 | 0.40 | 0.60 | 0.60 | 0.60 | 0.80 | |||
| Working Temperature Range | -55°C ~ +175°C | |||||||
| Nominal Resistance Tolerance J(±5.0%) F(±1.0%) D(±0.5%) C(±0.25%) B(±0.10%) A5(±0.05%) |
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| Temperature Coefficient PPM Normal test range(+25°C ~ +85°C) |
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| Remark: Please contact DeMint's Representatives if your requirement is not in above range. | ||||||||
| Mechanical and Electrical Test Conditions (NE) | |||
| Type | Item | Method | Requirement |
| Long Period | Life time | GJB244A (MIL-PRF-55182) 4.8.18 Rated Wattage,125°C,2000h,10000h |
GJB244A (MIL-PRF-55182) 3.24 ΔR≤±(0.5%R+0.01Ω) ΔR≤±(2%R+0.01Ω) |
| Humidity | GJB244A (MIL-PRF-55182) 4.8.18 -10°C ~ +65°C, RH<90% Rated Wattage, Cycle 240h. |
GJB244A (MIL-PRF-55182) 3.21 ΔR≤±(0.4%R+0.01Ω) |
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| High temp exposed | GJB244A 4.8.19 175°C 2000h |
GJB244A (MIL-PRF-55182) 3.25 ΔR≤±(2.0%R+0.01Ω) |
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| Short Period | Dielectric voltage | GJB244A (MIL-PRF-55182) 4.8.12/4.8.23/4.8.10 |
GJB244A (MIL-PRF-55182) 3.18/3.29/3.16 ΔR≤±(0.15%R+0.01Ω) no physical damage, arc, isolation break through |
| Lead strength Impact High frequency vibration |
GJB244A (MIL-PRF-55182) 4.8.11/4.8.16/4.8.17 |
GJB244A (MIL-PRF-55182) 3.17/3.22/3.23 ΔR≤±(0.20%R+0.01Ω) no physical damage |
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| Solderability | GJB244A (MIL-PRF-55182) 4.8.14 | GJB244A (MIL-PRF-55182) 3.20 ΔR≤±(0.10%R+0.01Ω) no physical damage |
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| Order Codes (NE) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| NE1/8 | 0.5W | 10R | B | C6 | P | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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