Harsh Environment
Chip Thermistor
NTC Type CR1
Features
• AECQ200RevDQualied
• Suitable for EGR, SCR, TMAP, OAT, HVAC &
whitegoodsapplications
• Performanceupto190°Cwithexcellentstability
• Smallbodydiameter
• Fast response
• Highthermalshockresistance
• Harshenvironmentuidsresistance
• Water immersion
• Flexible–coatedleadscanbeformed
• Insulationresistanceto1kVd.c.
• Designedforaccuratetemperaturemeasurement,
control&compensation
• TighttolerancesonresistanceandBvalue
• AvailableonbandoliertoIEC286-2RoHS
2011/65/EC/REACHcompliant
Description
NTCtypeCR1areNKformatchipthermistorsonSncoatedAlloy52leadswithahighperformanceacid
andmoistureresistantcoating.OurNTCchipthermistorsareidealforharshenvironmentapplicationsand
highvolumeassembly.
Amphenol
Advanced Sensors
Applications
• Automotive
• HVAC
• Whitegoods
• Marine
• Aerospace
• Military
• Industrial
• Healthcare
2
TypeCR1Specifications
SpecicationData
Minimumoperatingtemp. -40°C
Performanceupto: 190°C
Thermaltimeconstant 15s(cooling)
2.4s(ambientchange)
Dissipationfactor 2.2mW/K
Mass 0.18g
Packing 1000/box
2000/reel
Options
• OtherresistancevaluesandBvalueswithin
the ranges shown
• Alternativereferencetemperatures0°Cto
100°C
• BulkpackedorbandolieruptoH1=48mm
• Leadmaterials:Steel/Alloy52
• ContactAmphenolforspecicapplication
requirements
Coding:
• StandardEGRSensor-NKA202C2B2
• F o r C R 1 C o a t i n g a d d S u f x C t o C o d e 
See Table on page 4 for standard resistance values
BandolierSchematic
TypicalDimensions(mm)
Productswith2.54mmLeadSpacing NormalFeedingDirection
0.5 min 1 max
3 max
29.5mm max
2.54 nom
dia 0.4 ± 0.02
7 max
3 max
Bandolier, or Bulk 45max
3
BandolierSpecifications
Item Symbol Value(mm)
TOTALBANDTHICKNESS t0.7±0.2
MAXIMUMBANDTHICKNESS
Includingcomponentlead/splices Tt 1.5MAXIMUM
CARRIER TAPE WIDTH W18+1.0/-0.5
ADHESION TAPE WIDTH
Theholddowntapeshallnotprotrudebeyondeitheredgeofthecarriertape W0 6.0MINIMUM
POSITION OF ADHESION TAPE
Gapbetweenupperedgesofcarriertapeandhold-downtape W2 3.0MAXIMUM
SPROCKET HOLE POSITION W1 9.0±0.5
SPROCKET HOLE DIAMETER D0 4.0±0.2
PITCH OF COMPONENT P12.7±1.0
SPROCKET HOLE PITCH P0 12.7±0.3
PITCH TOLERANCE OVER ANY 20 PITCHES ±1.0
WIRE POSITION
Distancebetweentheordinateandthefirstleadofthefollowingcomponentinthe
directionofunreelingorfeeding.(Validfromupperedgeofthetapetotheseating
plane)
P1 5.08±0.7
HOLE CENTRE TO COMPONENT CENTRE P2 6.35±1.3
IN-PLANECOMPONENTDEVIATION
Maximumdeviationofthecomponentbodyinthetapeplane(fromthenominalposition) dp ±3
FRONT TO REAR DEVIATION
Themaximumlateraldeviationofthecomponentfromthenominalpositionmeasuredat
thebottomcentreofthecomponentbody.Maximumalignmentdeviationoftheleads
(validfromtheupperedgeofthetapetotheseatingplane)whendhistakenaszero,
shallbe0.2mm.Thisdimensionmustremaininlimitsafterthedevicehasbeencropped
fromthebandolier
dh ±3
WIRE SPACING
Atupperedgeoftape F2.5±0.5
WIRE DIAMETER d 0.4±0.02
SEATING HEIGHT
Distancebetweentheabscissaandtheseatingplaneofthecomponentbodywith
straightleads.
H45±1
HEAD HEIGHT
Distancebetweentheabscissaandthetopofthecomponentbody H1 48max
WIRE PROTRUSION
(Adhesivetape)
Protrusionofwiresbeyondthelowersideoftheadhesivetape
h5MAXIMUM
WIRE PROTRUSION
(Carrier)
Protrusionofwiresbeyondthelowersideofthecarriertape
l1 NO PROTRUSION
PERMITTED
CUT WIRE LENGTH
Forcutoutcomponentsthelengthoftheresidualleadsbeyondtheupperedgeofthe
carriertapemeasuredfromtheabscissa
L12 Nom
COMPONENT HEAD LENGTH A5max
EGR SENSOR Resistance Bvalue25/85°C Coating Packing
NKA202C2B2 R100=186.6Ω±2% 3540K±0.75% CR1 BandolieredH1=45±1mm
R25
Ω
Material
System
B Value
25/85°C
K
Maximum#
Operating
Temp.
°C (°F)
Code
R25°C ± 1%
Code
R25°C ± 2%
Code
R25°C ± 3%
Code
R25°C ± 5%
Code
R25°C ± 10%
500 23540±1% 170(338) NKA501C2*1 NKA501C2*2 NKA501C2*3 NKA501C2*5 NKA501C2*10
500 2A 3627±1% 170(338) NKA501C2A*1 NKA501C2A*2 NKA501C2A*3 NKA501C2A*5 NKA501C2A*10
500 7 3977±1% 170(338) NKA501C7*1 NKA501C7*2 NKA501C7*3 NKA501C7*5 NKA501C7*10
1000 2 3540±1% 170(338) NKA102C2*1 NKA102C2*2 NKA102C2*3 NKA102C2*5 NKA102C2*10
1000 2A 3627±1% 170(338) NKA102C2A*1 NKA102C2A*2 NKA102C2A*3 NKA102C2A*5 NKA102C2A*10
1000 7 3977±1% 170(338) NKA102C7*1 NKA102C7*2 NKA102C7*3 NKA102C7*5 NKA102C7*10
2000 2 3540±1% 170(338) NKA202C2*1 NKA202C2*2 NKA202C2*3 NKA202C2*5 NKA202C2*10
2050 23540±0.75% 170(338) NKA202C2B2
2000 2A 3627±1% 170(338) NKA202C2A*1 NKA202C2A*2 NKA202C2A*3 NKA202C2A*5 NKA202C2A*10
2000 7 3977±1% 170(338) NKA202C7*1 NKA202C7*2 NKA202C7*3 NKA202C7*5 NKA202C7*10
2700 13977±0.75% 190(374) NKA272C1*1 NKA272C1*2 NKA272C1*3 NKA272C1*5 NKA272C1*10
5000 4A 3435±1% 170(338) NKA502C4A*1 NKA502C4A*2 NKA502C4A*3 NKA502C4A*5 NKA502C4A*10
5000 13977±0.75% 190(374) NKA502C1*1 NKA502C1*2 NKA502C1*3 NKA502C1*5 NKA502C1*10
10000 4A 3435±1% 170(338) NKA103C4A*1 NKA103C4A*2 NKA103C4A*3 NKA103C4A*5 NKA103C4A*10
10000 5 3740±1% 170(338) NKA103C5*1 NKA103C5*2 NKA103C5*3 NKA103C5*5 NKA103C5*10
10000 1 3977±0.75% 190(374) NKA103C1*1 NKA103C1*2 NKA103C1*3 NKA103C1*5 NKA103C1*10
12000 5 3740±1% 170(338) NKA123C5*1 NKA123C5*2 NKA123C5*3 NKA123C5*5 NKA123C5*10
30000 8 3977±1% 170(338) NKA303C8*1 NKA303C8*2 NKA303C8*3 NKA303C8*5 NKA303C8*10
50000 8 3977±1% 170(338) NKA503C8*1 NKA503C8*2 NKA503C8*3 NKA503C8*5 NKA503C8*10
AAS-920-645G - 06/2015
www.amphenol-sensors.com
©2015AmphenolCorporation.AllRightsReserved.Specicationsaresubjecttochangewithoutnotice.
Othercompanynamesandproductnamesusedinthisdocumentaretheregisteredtrademarksor
trademarksoftheirrespectiveowners.
Amphenol
Advanced Sensors
NKAStandardRangeResistanceValues
(other values available upon request)
Replace*inthetablecodesshownaboveasfollows:
Loose-packed............................................R
Bandoliered...............................................B
Note: Add Suffix C to Code for CR1
See separate tables for resistance - temperature data