PNM
Vishay Thin Film
Precision Thin Film Non-Magnetic Chip Resistors
ꢀ2 ppmꢁ/Cꢂ Tolerances to 0.1 %
FEATURES
• Non-magnetic
• Lead (Pb)-free or Sn/Pb terminations available
• Moisture resistant
• High purity alumina substrate
• Non-standard values available
Actual Size
1202
• Will pass + 85 °C, 85 % relative humidity and
These devices eliminate materials that would disturb
magnetic fields applications such as in MRI magnetic
resonance imaging machines. The PNM series chip resistor
has been carefully engineered with non-magnetic materials
to eliminate the effects of these stray magnetic fields on
circuit performance, thereby resulting in simplified shielding
requirements and improved sound quality in audio
applications. Providing signal conditioning without distortion
from magnetic fields.
10 % rated power
• 100 % visual inspected per MIL-PRF-55342
• Very low noise and voltage coefficient (< - 30 dB)
• Non-inductive
• Laser-trimmed tolerances to 0.1 %
• Wraparound resistance less than 10 mΩ
• Halogen-free according to IEC 61249-2-21 definition
available
• Compiant to RoHS directive 2002/95/EC
CONSTRUCTION
Tantalum Nitride
Resistive Film
Passivation
Solder
coating
TYPICAL PERFORMANCE
ABS
Barrier layer
High Purity
Alumina Substrate
Adhesion layer
TCR
TOL
ꢀ2
0.1
STANDARD ELECTRICAL SPECIFICATIONS
TEST
SPECIFICATIONS
CONDITIONS
Material
Tantalum nitride
Absolute TCR
Absolute Tolerance
Operating Temperature Range
Noise
25 ppm/°C, 50 ppm/°C, 100 ppm/°C
1.0 %, 0.5 % and 0.1 %
- 55 °C to + 125 °C
- 55 °C to + 125 °C
+ 25 °C
< - 25 dB
CASE SIZE
0402
POWER RATING (mW)
MAX. WORKING VOLTAGE
RESISTANCE RANGE (Ω)
20 to 35K
50
100
150
150
200
250
500
400
400
750
800
1000
75
75
0502
20 to 65K
0505
75
20 to 130K
10 to 80K
0603
0805 (1), 0705 (1)
75
100
100
150
200
150
150
200
200
10 to 301K
10 to 301K
50 to 600K
10 to 1M
1005
1010
1206
1505
10 to 1M
2208
10 to 1.75M
10 to 2M
2010
2512
10 to 3M
Note
(1) 0705 and 0805 are the same (only use 0805 when ordering)
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 60057
Revision: 04-Jun-09
For technical questions, contact: thin-film@vishay.com
www.vishay.com
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