Low TCR High Precision Resistors (EE)

Ultra Precision Resistors

Low TCR high precision resistors offer more precision design options.

Known for providing design engineers with a comprehensive range of military-qualified resistive precision devices, Direct Electronics Advanced Metal Film has further expanded its military product capabilities.

These cost-effective high precision moulding resistors meets ROHS requirements, MIL-PRF-55182, and GJB244A-2001 quality standards.

EE Series manufactured by depositing a homogeneous film of metal alloy onto a high-grade ceramic body, the metal film resistors are moulded into cylinder shape to provide mechanical, electrical and climatic protection.

EESeries equate Vishay, IRC, EBG, Panasonic Precision Devices with more competitive price and fast delivery. Contact us with your specific needs. PDF download here Low TCR High Precision Resistors (EE)

Production Standard :
Which is made referencing to Chinese National Quality Standard GJB244A-2001 standards, and USA Military/Established Reliability MIL-PRF-55182 in environmental and dimensional requirements.

Features :
  1. Power Rating :0.125W ~ 1W.
  2. Precision tolerance tight to T(±0.01%).
  3. Precision metal film, excellent stability and reliability.
  4. Superior electrical TCR performances narrowed to C10 ( ±2 ppm/°C ).
  5. Lead (Pb)-free and RoHS compliant, Covers all general type resistors.
Applications :
  1. Medical electronics.
  2. Measuring and calibration equipment.
  3. High gain feedback applications.
  4. Precision Instruments, Avionics.
  5. Telecom.
Dimensions & Technical Characteristics (EE)
Precision (EE) Dimensions
Precision (EE) Dimensions
(EE) Power Derating Curve
(EE) Power Derating Curve
Type EE1/20 EE1/10 EE1/8 EE1/4 EE1/2
Rated Wattage (W) 70 °C 0.125 0.25 0.5 0.75 1.0
Max. Working Voltage (V) 200 200 250 300 350
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
Resistance Range (Ω) 10Ω ~ 2.5MΩ 10Ω ~ 10MΩ 10Ω ~ 10MΩ 10Ω ~ 10MΩ 10Ω ~ 10MΩ
Working Temperature Range -55°C ~ +175°C
Nominal Resistance Tolerance A2(±0.02%), A5(±0.05%), B(±0.10%), C(±0.25%), D(±0.50%), F(±1.00%)
between 10Ω to 350KΩ can be reached to T(±0.01%)
Temperature Coefficient PPM
Normal test range(+25°C ~ +85°C)
Special require range(-10°C ~ +50°C)
C7(±5PPM/°C), C6(±10PPM/°C), C5(±15PPM/°C), C3(±25PPM/°C), C2(±50PPM/°C)
between 10Ω to 350KΩ can be reached to C8(±4PPM/°C), C9(±3PPM/°C), or C10(±2PPM/°C)
Remark: Please contact Direct's Representatives if your requirement is not in above range.
Mechanical and Electrical Test Conditions (EE)
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
Humidity GJB244A (MIL-PRF-55182) 4.8.18
-10°C ~ +65°C, RH<90%
Rated Wattage, Cycle 240h.
GJB244A (MIL-PRF-55182) 3.21
High Temp. Exposed GJB244A 4.8.19
175°C 2000h
GJB244A (MIL-PRF-55182) 3.25
Short Period Dielectric Voltage GJB244A (MIL-PRF-55182)
GJB244A (MIL-PRF-55182) 3.18/3.29/3.16
no physical damage, arc,
isolation break through
Lead Strength,
High Frequency Vibration
GJB244A (MIL-PRF-55182)
GJB244A (MIL-PRF-55182) 3.17/3.22/3.23
no physical damage
Solderability GJB244A (MIL-PRF-55182) 4.8.14 GJB244A (MIL-PRF-55182) 3.20
no physical damage
Order Codes (EE)
EE1/8 0.5W 10R B C6 P
Part Number
Rated Power (W)
EE1/20 70°C 0.125W
EE1/10 0.25W
EE1/8 0.5W
EE1/4 0.75W
EE1/2 1W
Resistance Value (Ω)
10R 10Ω
100R 100Ω
1K1 1.1KΩ
110K 110KΩ
1M1 1.1MΩ
10M 10MΩ
Resistance Tolerance (%)
T ±0.01%
A2 ±0.02%
A5 ±0.05%
B ±0.1%
C ±0.25%
D ±0.5%
F ±1.0%
Temperature coefficient (PPM/°C)
C2 ±50ppm/°C
C3 ±25ppm/°C
C5 ±15ppm/°C
C6 ±10ppm/°C
C7 ±5ppm/°C
C8 ±4ppm/°C
C9 ±3ppm/°C
C10 ±2ppm/°C
P Bulk