MF-RHT1100-AP [BOURNS]
11.0A HIGH-TEMPERATURE PTC RESET;型号: | MF-RHT1100-AP |
厂家: | BOURNS ELECTRONIC SOLUTIONS |
描述: | 11.0A HIGH-TEMPERATURE PTC RESET |
文件: | 总9页 (文件大小:830K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Features
nꢀ CompliantꢀwithꢀAEC-Q200ꢀRev-D-ꢀStressꢀ
TestꢀQualificationꢀforꢀPassiveꢀComponentsꢀ
inꢀAutomotiveꢀApplications
AUTOMOTIVE
GRADE
nꢀ Choiceꢀofꢀoperatingꢀcurrents
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
RH750
7180S
nꢀ Resettableꢀfaultꢀprotectionꢀofꢀgeneralꢀ
electronicꢀequipment
nꢀ Operatingꢀtemperatureꢀrangeꢀupꢀtoꢀ125ꢀ°C
nꢀ Lowꢀthermalꢀderatingꢀfactor
nꢀ Agencyꢀrecognition:
nꢀ Higherꢀholdꢀcurrentsꢀatꢀelevatedꢀ
temperature
MF-RHT Series - High Temperature PTC Resettable Fuses
Electrical Characteristics
1 Hour (R )
1
Tripped
Power
Dissipation
Initial
Resistance
Max. Time
to Trip
Agency
Recognition
I
I
Post-Trip
hold
trip
Resistance
V
I
max
max
Model
at 23 °C
Ohms
at 23 °C
Ohms
at 23 °C
Watts
at 23 °C
Amps
at 23 °C
cUL
TÜV
E174545 R50494578
Volts Amps
Min.
Max.
Amps Seconds
Typ.
MF-RHT050
MF-RHT070
MF-RHT100
MF-RHT200
MF-RHT200/32
MF-RHT300
MF-RHT400
MF-RHT450
MF-RHT500
MF-RHT550
MF-RHT600
MF-RHT650
MF-RHT700
MF-RHT750
MF-RHT800
MF-RHT900
MF-RHT1000
MF-RHT1100
MF-RHT1300
30
30
30
16
32
16
16
16
16
16
16
16
16
16
16
16
16
16
16
40
0.5
0.92
1.4
0.48
1.10
0.80
2.5
2.5
4.0
5.0
3.0
3.0
5.0
5.0
3.0
9.0
6.0
5.0
5.5
7.0
7.0
8.0
10.0
9.0
11.0
13.0
0.9
1.4
1.4
1.4
1.4
3.0
3.3
3.6
3.6
3.5
4.1
4.3
4.0
4.5
4.2
5.0
5.3
5.5
6.9
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
40
0.7
1.0
2.0
2.0
3.0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
9.0
0.30
3.5
40
1.8
0.18
0.43
5.2
100
50
3.8
0.045
0.110
0.110
0.079
0.060
0.054
0.045
0.037
0.032
0.026
0.025
0.022
0.020
0.017
0.015
0.013
0.010
12.5
12.5
15.0
20.0
22.5
25.0
27.5
30.0
32.5
35.0
37.5
40.0
45.0
50.0
55.0
60.0
3.8
0.045
100
100
100
100
100
100
100
100
100
100
100
100
100
100
6.0
0.033
7.5
0.024
7.8
0.022
9.0
0.0175
0.0150
0.0130
0.0110
0.0100
0.0094
0.0080
0.0074
0.0062
0.0055
0.0041
10.0
10.8
12.0
13.0
13.1
15.0
16.5
18.5
20.0
24.0
10.0
11.0
13.0
Environmental Characteristics
Item
Additional Information
Click these links for more information:
Condition
Criteria
Operating Temperature
Recommended Storage
Passive Aging
-40 °C to +125 °C
PRODUCT TECHNICAL INVENTORY SAMPLES CONTACT
LIBRARY
+40 °C max. / 70 % R.H. max.
+85 °C, 1000 hours
±5 % typical resistance
change
±5 % typical resistance
change
Humidity Aging
+85 °C, 85 % R.H. 1000 hours
-40 °C to +85 °C, 10 times
MIL-STD-202, Method 215
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
±10 % typical resistance
change
Thermal Shock
*ꢀ RoHSꢀDirectiveꢀ2015/863,ꢀMarꢀ31,ꢀ2015ꢀandꢀAnnex.
**ꢀBournsꢀconsidersꢀaꢀproductꢀtoꢀbeꢀ“halogenꢀfree”ꢀifꢀ
(a)ꢀtheꢀBromineꢀ(Br)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀ(b)ꢀ
theꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(c)ꢀ
theꢀtotalꢀBromineꢀ(Br)ꢀandꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ
1500ꢀppmꢀorꢀless.
No change
(marking still legible)
Solvent Resistance
Vibration
MIL-STD-883C, Method 2007.1
Condition A
No change
(R
< R < R
)
min
1max
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀ
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀ
specificꢀapplications.ꢀTheꢀproductsꢀdescribedꢀhereinꢀandꢀ
thisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀ
setꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀꢀ
www.bourns.com/docs/legal/disclaimer.pdf.
Moisture Sensitivity Level
(MSL)
See Note
ESD Classification
Class 6 (per AEC-Q200-2, HBM)
MF-RHT Series - High Temperature PTC Resettable Fuses
Test Procedures and Requirements
Item
Test Conditions
Verify dimensions and materials
In still air @ 23 °C
Accept/Reject Criteria
Per MF physical description
≤ R ≤ R
Visual/Mechanical
Resistance
R
min
max
Time to Trip
At specified current, V
, 23 °C
T ≤ max. time to trip (seconds)
No trip
max
Hold Current
Trip Cycle Life
Trip Endurance
Solderability
30 min. at I
hold
V
V
, I
, 100 cycles
No arcing or burning
No arcing or burning
95 % min. coverage
max max
, 48 hours
max
245 °C ± 5 °C, 5 seconds
Thermal Derating Table - I
(Amps)
hold
Ambient Operating Temperature
Model
-40 °C
-20 °C
0 °C
23 °C
40 °C
50 °C
60 °C
70 °C
85 °C
125 °C
MF-RHT050
MF-RHT070
MF-RHT100
MF-RHT200
MF-RHT200/32
MF-RHT300
MF-RHT400
MF-RHT450
MF-RHT500
MF-RHT550
MF-RHT600
MF-RHT650
MF-RHT700
MF-RHT750
MF-RHT800
MF-RHT900
MF-RHT1000
MF-RHT1100
MF-RHT1300
0.68
0.95
1.36
2.71
2.71
4.07
5.57
6.1
0.62
0.87
1.24
2.49
2.49
3.74
5.11
5.6
0.56
0.79
1.13
2.26
2.26
3.41
4.65
5.1
0.5
0.7
1.0
2.0
2.0
3.0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
9.0
10.0
11.0
13.0
0.44
0.62
0.89
1.77
1.77
2.65
3.62
4.0
0.4
0.36
0.51
0.73
1.46
1.46
2.21
3.01
3.3
0.34
0.47
0.67
1.34
1.34
2.00
2.73
3.0
0.28
0.39
0.56
1.11
1.11
1.66
2.27
2.5
0.12
0.17
0.24
0.49
0.49
0.74
1.01
1.1
0.56
0.80
1.60
1.60
2.40
3.29
3.6
6.78
7.47
8.20
8.8
6.22
6.86
7.50
8.1
5.67
6.24
6.80
7.4
4.44
4.85
5.3
4
3.67
4.04
4.4
3.33
3.66
4
2.78
3.05
3.3
1.22
1.36
1.5
4.41
4.9
5.7
5.3
4.8
4.3
3.6
1.6
9.51
10.2
10.87
12.21
13.6
14.94
17.7
8.73
9.4
7.95
8.6
6.17
6.6
5.61
6.1
5.15
5.6
4.66
5.0
3.88
4.1
1.73
1.9
9.98
11.19
12.5
13.72
16.3
9.08
10.16
11.4
12.49
14.8
7.06
7.97
8.8
6.41
7.20
8.10
8.82
10.5
5.88
6.56
7.40
8.09
9.6
5.33
6.04
6.60
7.32
8.6
4.43
5.01
5.50
6.09
7.2
1.97
2.19
2.5
9.7
2.71
3.3
11.4
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.
MF-RHT Series - High Temperature PTC Resettable Fuses
Typical Part Marking
How to Order
Represents total content. Layout may vary.
MF - RHT 200 /32 - __ - 14
MANUFACTURER'S
TRADEMARK
Multifuse® Product Designator
PARTꢀ
IDENTIFICATION
Series
RH750
7180S
COUNTRYꢀOFꢀ
MANUFACTURE
(Sꢀ=ꢀCHINA)
RHT = High Temperature Radial Leaded Component
Hold Current, I
hold
DATEꢀCODE
(FIRSTꢀDIGITꢀ=
050 - 1300 (0.50 - 13.00 Amps)
LASTꢀDIGITꢀOFꢀYEAR;
NEXTꢀTHREEꢀDIGITSꢀ=
DAYꢀOFꢀYEAR)
Higher Voltage Option
Blank = Standard Voltage
/32 = 32 Volts
EXAMPLE:ꢀ7180ꢀ=ꢀ2017ꢀDAYꢀ180
Packaging Options
- 0 = Bulk Packaging
- 2 = Tape & Reel*
- AP = Ammo-Pak*
Part Number Suffix Option
- 14 = Kinked leads where straight leads are standard
- 17 = Straight leads where kinked leads are standard
*Packaged per EIA-468
Packaging Quantity
Packaging options
Models
Unit Quantity (Pcs.)
Unit
MF-RHT050 ~ MF-RHT800
MF-RHT900 ~ MF-RHT1300
MF-RHT050 ~ MF-RHT400
MF-RHT450 ~ MF-RHT700
MF-RHT750 ~ MF-RHT1300
MF-RHT050 ~ MF-RHT400
MF-RHT450 ~ MF-RHT900
MF-RHT1000 ~ MF-RHT1300
500
250
Bulk
Bag
3000
1500
1000
2000
1000
500
Tape & Reel
Ammo-Pack
Reel
Pack
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.
MF-RHT Series - High Temperature PTC Resettable Fuses
Product Dimensions
A
B
C
D
E
F
Physical Characteristics
Model
Max.
Max.
Nom.
Tol. ±
Min.
Max.
Nom.
Style
Material
7.40
(0.291)
6.86
(0.27)
9.70
(0.382)
9.4
(0.37)
9.4
(0.37)
8.80
(0.35)
10.0
(0.394)
10.4
(0.41)
11.2
(0.441)
11.2
(0.441)
11.2
(0.441)
12.7
(0.50)
14.0
(0.55)
14.0
(0.55)
16.5
(0.65)
16.5
(0.65)
12.7
(0.500)
10.8
(0.425)
13.6
(0.535)
14.0
(0.55)
14.0
(0.55)
13.8
(0.55)
15.0
(0.591)
15.6
(0.61)
18.9
(0.744)
18.9
(0.744)
21.0
(0.827)
22.2
(0.88)
21.9
(0.862)
21.9
(0.862)
22.5
(0.88)
25.7
(1.012)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
3.0
(0.12)
0.51
(0.020)
0.51
(0.020)
0.51
(0.020)
0.51
(0.020)
0.51
(0.020)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
MF-RHT050
MF-RHT070
MF-RHT100
MF-RHT200
MF-RHT200/32
MF-RHT300
MF-RHT400
MF-RHT450
MF-RHT500
MF-RHT550
MF-RHT600
MF-RHT650
MF-RHT700
MF-RHT750
MF-RHT800
MF-RHT900
MF-RHT1000
MF-RHT1100
MF-RHT1300
3
Sn/CuFe
1
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
17.5
(0.689)
21.0
(0.65)
23.5
(0.925)
26.7
(0.51)
26.1
(0.88)
28.7
(1.17)
10.2
(0.402)
10.2
(0.402)
10.2
(0.402)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
3.0
(0.12)
3.0
(0.12)
3.6
(0.14)
0.81
(0.032)
0.81
(0.032)
1.0
(0.040)
MM
(INCHES)
DIMENSIONS:
A
E
A
A
E
E
Also available with kinked and
straight leads in place of standard
leads (see How to Order).
B
B
B
D
D
D
C
C
F
C
F
F
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.
MF-RHT Series - High Temperature PTC Resettable Fuses
Typical Time to Trip at 23 ˚C
MF-RHT600
MF-RHT550
MF-RHT650
MF-RHT700
MF-RHT500
MF-RHT450
MF-RHT400
MF-RHT750
MF-RHT800
MF-RHT900
MF-RHT300
MF-RHT200, MF-RHT200/32
MF-RHT100
MF-RHT1000
MF-RHT1100
MF-RHT1300
1000
MF-RHT070
100
MF-RHT050
10
1
0.1
0.01
1
10
100
Fault Current (Amps)
The Time to Trip curves represent typical performance of a device in a simulated application environment.
Actual performance in specific customer applications may differ from these values due to the influence of other variables.
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.
MF-RHT Series Tape and Reel Specifications
Devices taped using EIA-468/IEC 60286-2 standards. See table below and figures for details.
IEC
EIA
Dimension Description
Mark
Mark
Dimensions
Tolerance
18
(.709)
+1.0/-0.5
(+.039/-.020)
Carrier tape width
W
W
5
Hold down tape width
W
W
min.
0
0
(.197)
Hold down tape
No protrusion
3
Adhesive tape position
W
W
W
W
max.
2
1
0
2
1
0
(.118)
9
+0.75-0.5
(+.030/-.020)
Sprocket hole position
(.354)
4
±0.2
(±.0078)
Sprocket hole diameter
D
D
(.157)
18 ~ 20
(.709 ~ .787)
Height to seating plane (straight lead)
Height to seating plane (formed lead)
Overall height above abscissa: MF-RHT050 ~ MF-RHT900
Overall height above abscissa: MF-RHT1000 ~ MF-RHT1300
Cutout length
H
H
16
(.630)
±0.5
(±.020)
H
H
H
H
H
H
0
1
1
0
1
1
38.5
(1.516)
max.
max.
max.
45.0
(1.772)
11
(.433)
L
12.7
(.500)
±0.3
(±.012)
Sprocket hole pitch: MF-RHT050 ~ MF-RHT900
Sprocket hole pitch: MF-RHT1000 ~ MF-RHT1300
Device pitch: MF-RHT050 ~ MF-RHT900
Device pitch: MF-RHT1000 ~ MF-RHT1300
Pitch tolerance
P
P
P
P
0
0
0
30.0
(1.18)
±0.6
(±.024)
0
25.4
(1.00)
±0.6
(±.024)
P
P
30.0
(1.18)
±0.6
(±.024)
P
t
P
±1
(±.039)
20 consecutive
0.9
(.035)
Composite tape thickness
t
max.
max.
max.
2.0
(.079)
Overall tape and lead thickness: MF-RHT050 ~ MF-RHT200/32
Overall tape and lead thickness: MF-RHT300 ~ MF-RHT1300
Splice sprocket hole alignment
t
t
1
1
2.3
(.091)
t
t
1
1
±0.3
(±.012)
0
0
0
±1.0
(±.039)
Front-to-back deviation
Δ
Δ
Δ
Δ
h
p
1
1
h
p
1
1
±1.3
(±.051)
Side-to-side deviation
3.81
(.150)
±0.7
(±.028)
Ordinate to adjacent component lead: MF-RHT050 ~ MF-RHT900
Ordinate to adjacent component lead: MF-RHT1000 ~ MF-RHT1300
Lead spacing: MF-RHT050 ~ MF-RHT900
Lead spacing: MF-RHT1000 ~ MF-RHT1300
P
P
P
P
9.9
(.390)
±0.7
(±.028)
5.08
(.200)
+0.6/-0.2
(+.024/-.008)
F
F
10.2
(.400)
+0.6/-0.2
(+.024/-.008)
F
F
MM
(INCHES)
— Continued on next page —
DIMENSIONS:
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.
MF-RHT Series Tape and Reel Specifications
Devices taped using EIA-468/IEC 60286-2 standards. See table below and figures for details.
IEC
EIA
Dimension Description
Mark
Mark
Dimensions
Tolerance
62.0
(2.44)
Reel width including flanges and hub
W
W
w
w
max
4
3
2
1
Dimension between flanges (measured at hub)
Reel diameter
allow proper reeling and unreeling
370.0
max.
A
a
(14.57)
4.75
(.187)
±3.25
(±.128)
Space between flanges (at hub, excluding device)
Arbor hole diameter
26.0
(1.024)
±12.0
(±.472)
C
N
c
80
(3.15)
Core diameter
n
min.
max.
max.
62 x 372 x 372
(2.44 x 14.6 x 14.6)
Box dimensions
Consecutive missing places
Empty places per reel
3
Less than 0.1 %
Taped Component Dimensions -
per EIA Mark -
Figure 1
p
h
h
p
Reference plane
P1
H1
H1
H
W2
F
H0
A
B
L
W1
W0
W
User direction of feed
P0
D0
t
Cross section A - B
t1
Reel Dimensions - per EIA Mark -
Figure 2
Reel
Upper side
Tape
n
User
direction
of
a
feed
Lower side
c
w1
w2
MF-RHT SERIES, REV. S, 05/21
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.
Bourns® Multifuse® PPTC Resettable Fuses
Application Notice
•
•
Users are responsible for independent and adequate evaluation of Bourns® Multifuse® Polymer PTC devices in the user’s
application, including the PPTC device characteristics stated in the applicable data sheet.
Polymer PTC devices must not be allowed to operate beyond their stated maximum ratings. Operation in excess of such
maximum ratings could result in damage to the PTC device and possibly lead to electrical arcing and/or fire. Circuits with
inductance may generate a voltage above the rated voltage of the polymer PTC device and should be thoroughly evaluated
within the user’s application during the PTC selection and qualification process.
•
•
Polymer PTC devices are intended to protect against adverse effects of temporary overcurrent or overtemperature
conditions up to rated limits and are not intended to serve as protective devices where overcurrent or overvoltage conditions
are expected to be repetitive or prolonged.
In normal operation, polymer PTC devices experience thermal expansion under fault conditions. Thus, a polymer PTC
device must be protected against mechanical stress, and must be given adequate clearance within the user’s application to
accommodate such thermal expansion. Rigid potting materials or fixed housings or coverings that do not provide adequate
clearance should be thoroughly examined and tested by the user, as they may result in the malfunction of polymer PTC
devices if the thermal expansion is inhibited.
•
•
Exposure to lubricants, silicon-based oils, solvents, gels, electrolytes, acids, and other related or similar materials may
adversely affect the performance of polymer PTC devices.
Aggressive solvents may adversely affect the performance of polymer PTC devices. Conformal coating, encapsulating,
potting, molding, and sealing materials may contain aggressive solvents including but not limited to xylene and toluene,
which are known to cause adverse effects on the performance of polymer PTCs. Such aggressive solvents must be
thoroughly cured or baked to ensure their complete removal from polymer PTCs to minimize the possible adverse effect
on the device.
•
Recommended storage conditions should be followed at all times. Such conditions can be found on the applicable data
sheet and on the Multifuse® Polymer PTC Moisture/Reflow Sensitivity Classification (MSL) note:
https://www.bourns.com/docs/RoHS-MSL/msl_mf.pdf
MFAN 12/18
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
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