NK, NP, NT, NY
Vishay Sfernice
Precision Metal Film Resistors
FEATURES
•
•
•
•
•
0.063 W to 0.5 W at 70 °C
Approved according to CECC 40101
Wide ohmic range from 1 Ω to 4.7 MΩ
Good initial precision up to ± 0.1 %
Operating temperatures:
- 55 °C to + 155 °C for TCR ≥ 25 ppm/°C
- 25 °C to + 85 °C for TCR ≤ 15 ppm/°C
• Epoxy coating
• Termination: Pure matt tin
• Compliant to RoHS directive 2002/95/EC
DIMENSIONS in millimeters
6
TYPE
ØD
max.
L
max.
A±1
Ød
CC
e
MAX. UNIT
WEIGHT
N.. 3..
1.8
3.9
53
0.5
5.08
0.15 g
N.. 4..
2.5
6.2
53
0.6
NA
0.3 g
N.. 5..
L max.
ØD
3.3
8.7
53
0.6
NA
0.5 g
Ød
8±1
CC
e
A
TECHNICAL SPECIFICATIONS
MODEL
NT3S
Power Rating, Pr at + 70 °C
Stability Class
1%
± 0.1 %
100 Ω
± 0.25 %
± 15
ppm/°C (1) ± 0.5 %
200 kΩ
±1%
200 kΩ
± 0.1 %
± 0.25 %
± 25
Ohmic Value
ppm/°C (2) ± 0.5 %
Range in
Relation to:
±1%
Temperature
± 0.1 %
Coefficient,
TCR/
± 0.25 %
Tolerance
± 50
± 0.5 %
ppm/°C (2)
±1%
±2%
±5%
10 Ω
-
Thermal Resistance
NK3
NT4S
NY4
2%
1%
E24
E192 for
0.1 %/0.25 %/0.5 %
E96 for 1 %
49.9 Ω
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10 Ω
511 kΩ
-
-
-
-
-
-
-
10 Ω
1.5 MΩ
1Ω
1.5 MΩ
-
1Ω
1.5 MΩ
10 Ω
499 kΩ
200 V
-
160 kΩ
490 kΩ
NP5S
NY5
NK5
0.5 W
1%
2%
E24
E192 for
0.1 %/0.25 %/0.5 %
E96 for 1 %
E24
100 Ω
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10 Ω
1 MΩ
10 Ω
1 MΩ
10 Ω
1 MΩ
10 Ω
3.32 MΩ
10 Ω
3.32 MΩ
350 V
170 °C/W
NT5S
2%
-
100 Ω
511 kΩ
499 kΩ
NK4
0.5 W
-
-
-
NP4S
0.25 W
-
Limiting Element Voltage
Umax. RMS
Critical Resistance
NY3
0.25 W
E192 for
0.1 %/0.25 %/0.5 %
E96 for 1 %
Preferred Standard Ohmic
Values Series
± 100
ppm/°C (2)
NP3S
0.125 W
245 kΩ
145 °C/W
10 Ω
3.3 MΩ
499 kΩ
10 Ω
499 kΩ
-
-
-
-
-
-
-
-
-
-
100 Ω
1 MΩ
10 Ω
1 MΩ
10 Ω
1 MΩ
10 Ω
4.7 MΩ
2.67 Ω
4.7 MΩ
-
2.7 Ω
4.7 MΩ
350 V
245 kΩ
110 °C/W
Notes
(1) TCR requirement for temperature between - 25 °C and + 85 °C
(2) TCR requirement for temperature between - 55 °C and + 125 °C
www.vishay.com
156
For technical questions, contact: sfer@vishay.com
Document Number: 52005
Revision: 16-Jul-09
NK, NP, NT, NY
Vishay Sfernice
Precision Metal Film Resistors
PERFORMANCE
REQUIREMENTS
TEST
CONDITIONS
STABILITY CLASS 1 STABILITY CLASS 2
CECC 40101-002/803 CECC 40101-001/802
TYPICAL
DRIFT
Load Life
Load Life at Maximum
Category Temperature
Sheft Life
IEC 60115-1
6.25 Pr or 2 Umax.
1 s for 0.063 W/5 s for ≥ 0.125 W
± (0.25 % + 0.05 Ω)
± (0.5 % + 0.05 Ω)
≤ ± 0.05 %
IEC 60115-1
90’/30’ cycles.
1000 h at Pr /70 °C
± (1 % + 0.05 Ω)
± (2 % + 0.1 Ω)
≤ ± 0.25 %
IEC 60115-1
90’/30’ cycles.
1000 h at derated Pr /125 °C
± (1 % + 0.05 Ω)
± (2 % + 0.1 Ω)
IEC 60115-1
1000 h at 155 °C
Short Time Overload
-
-
1 year at ambient temperature
-
-
≤ ± 0.1 %
± (0.25 % + 0.05 Ω)
± (0.5 % + 0.05 Ω)
≤ ± 0.1 %
≤ ± 0.25 %
Seq.
A1
Robustness of
Terminations
IEC 60115-1
IEC 60068-2-21
Test Ua1: Traction 10N/10 s
Test Ub: Bending + 90° → - 90° → 0° with 5N
Test Uc: Twisting 2 times at 180°
Seq.
A2
Resistance to
Soldering Heat
IEC 60115-1
IEC 60068-2-20 Test Tb
Method 1: Solder bath 260 °C/10 s
± (0.25 % + 0.05 Ω)
± (0.5 % + 0.05 Ω)
≤ ± 0.05 %
Seq.
B1
Rapid Change
of Temperature
IEC 60115-1
IEC 60068-2-14 Test Na
5 cycles (30’ at LCT/30’ at UCT)
- 55 °C/125 °C
± (0.25 % + 0.05 Ω)
± (0.5 % + 0.05 Ω)
≤ ± 0.05 %
Seq.
B2
Vibration
IEC 60115-1
IEC 60068-2-6 Test Fc
10 Hz/500 Hz
± (0.25 % + 0.05 Ω)
± (0.5 % + 0.05 Ω)
≤ ± 0.1 %
Climatic
Sequence
IEC 60115-1
1. Dry heat at 125 °C/16 h (IEC 60068-2-2)
2. Damp heat 55 °C/24 h (IEC 60068-2-30 Test Db)
3. Cold at - 55 °C/2 h (IEC 60068-2-1 Test Aa)
4. Low pressure 25 °C/1 h (IEC 60068-2-13)
5. Damp heat 55 °C/120 h (IEC 60068-2-30 Test Db)
± (1 % + 0.05 Ω)
± (2 % + 0.1 Ω)
≤ ± 0.25 %
IEC 60115-1
IEC 60068-2-78
40 °C/93 % RH/56 days
± (1 % + 0.05 Ω)
± (2 % + 0.1 Ω)
≤ ± 0.5 %
Seq.
A+B
Damp Heat,
Steady State
www.vishay.com
158
For technical questions, contact: sfer@vishay.com
Document Number: 52005
Revision: 16-Jul-09
