T
GRADE
■ Compliant with AEC-Q200 Rev-D - Stress Test Qualification for Passive Components
in Automotive Applications
■ Small footprint size (1206)
AE
C-
*
Q2 RoH
00 S
CO an
M d
PL
IA
N
Features
AUTOMOTIVE
■ Operating temperature range up to 125 °C
■ Low thermal derating factor
■ Higher hold currents at elevated temperatures
■ RoHS compliant*
MF-NSHT Series - PTC Resettable Fuses
Electrical Characteristics
Ihold
Vmax
Model
Itrip
Imax
at 23 °C
MF-NSHT010KX
MF-NSHT016KX
MF-NSHT020KX
MF-NSHT035KX
MF-NSHT050KX
MF-NSHT075KX
Volts
Amps
30
30
30
30
16
12
20
20
20
20
20
40
Amps
0.10
0.16
0.20
0.35
0.50
0.75
Resistance
Max. Time
To Trip
at 23 °C
Ohms
at 23 °C
Agency
Recognition
cUL
TÜV
RMin.
R1Max.**
Amps
Seconds
Typ.
E174545
R50384138
1.00
0.70
0.60
0.40
0.17
0.08
7.50
6.00
5.00
2.60
1.60
0.70
2.50
8.00
8.00
8.00
8.00
8.00
1.50
0.10
0.10
0.10
0.10
5.00
0.9
0.9
0.9
0.9
0.9
1.2
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
0.50
0.80
1.00
1.75
2.50
3.00
Environmental Characteristics
Item
Tripped
Power
Dissipation
at 23 °C
Watts
Additional Information
Condition
Criteria
Operating Temperature
-40 °C to +125 °C
Recommended Storage
+40 °C max. / 70 % R.H. max.
Passive Aging
+125 °C, 1000 hours
R < R1max
Humidity Aging
+85 °C, 85 % R.H. 1000 hours
R < R1max
Thermal Shock
-40 °C to +125 °C, 20 times
R < R1max
Solvent Resistance
MIL-STD-202, Method 215
No change
(marking still legible)
Vibration
MIL-STD-883C, Method 2007.1
Condition A
No change
(Rmin < R < R1max)
Moisture Sensitivity Level (MSL)
See Note
ESD Classification
Class 6 (per AEC-Q200-2, HBM)
Click these links for more information:
PRODUCT TECHNICAL INVENTORY SAMPLES
SELECTOR LIBRARY
CONTACT
Test Procedures and Requirements
Item
Test Condition
Accept/Reject Criteria
Visual/Mechanical
Verify dimensions and materials
Per MF physical description
Rmin ≤ R ≤ Rmax
T ≤ max. time to trip (seconds)
Resistance
In still air @ 23 °C
Time to Trip
At specified current, Vmax, 23 °C, still air
Hold Current
30 min. at Ihold, still air
No trip
Trip Cycle Life
Vmax, Imax, 100 cycles
No arcing or burning
Trip Endurance
Vmax, 48 hours
No arcing or burning
Solderability
245 °C ±5 °C, 5 seconds
95 % min. coverage
Asia-Pacific:
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
Europe:
Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
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.
MF-NSHT Series - PTC Resettable Fuses
Thermal Derating Table - Ihold (Amps)
Ambient Operating Temperature
Model
MF-NSHT010KX
MF-NSHT016KX
MF-NSHT020KX
MF-NSHT035KX
MF-NSHT050KX
MF-NSHT075KX
-40 °C
-20 °C
0 °C
+23 °C
+40 °C
+50 °C
+60 °C
+70 °C
+85 °C
+125 °C
0.15
0.23
0.29
0.51
0.73
1.09
0.13
0.21
0.26
0.46
0.66
0.98
0.12
0.19
0.23
0.41
0.58
0.87
0.10
0.16
0.20
0.35
0.50
0.75
0.09
0.14
0.18
0.31
0.44
0.66
0.08
0.13
0.16
0.28
0.41
0.61
0.07
0.12
0.15
0.26
0.37
0.56
0.07
0.11
0.13
0.23
0.34
0.50
0.06
0.09
0.11
0.20
0.28
0.42
0.03
0.04
0.05
0.09
0.14
0.20
Product Dimensions
A
Model
MF-NSHT010KX
MF-NSHT016KX
MF-NSHT020KX
MF-NSHT035KX
MF-NSHT050KX
MF-NSHT075KX
Min.
Max.
Min.
B
Max.
Min.
C
Max.
D
Min.
E
Min.
3.00
(0.118)
3.40
(0.134)
1.40
(0.055)
1.80
(0.071)
0.40
(0.016)
0.85
(0.033)
0.25
(0.010)
0.05
(0.002)
3.00
(0.118)
3.40
(0.134)
1.40
(0.055)
1.80
(0.071)
0.60
(0.024)
1.20
(0.047)
0.25
(0.010)
0.05
(0.002)
DIMENSIONS:
Side View
Top View
A
Bottom View
C
D
Recommended Pad Layout
Terminal Material:
ENIG-plated terminals
E
MM
(INCHES)
1.60
(0.063)
B
1.00
(0.039)
2.00
(0.079)
Typical Time to Trip at 23 ˚C
1
Time to Trip (Seconds)
A
B
E
F
C
0.1
A - MF-NSHT010KX
D
B - MF-NSHT016KX
C - MF-NSHT020KX
D - MF-NSHT035KX
0.01
E - MF-NSHT050KX
F - MF-NSHT075KX
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.
0.001
0.0001
0.1
1
Fault Current (Amps)
10
100
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.
MF-NSHT Series - PTC Resettable Fuses
Typical Part Marking
How to Order
MF - NSHT 016 K X - 2
Multifuse® Product Designator
Series
NSHT = 1206 High Temperature
Surface Mount
Component
Hold Current, Ihold
010 - 075 (0.10 - 0.75 Amps)
Material Specific Code
Multifuse® freeXpansion™ Design
Packaging
-2 = Tape and Reel
Packaged per EIA-481
Represents total content. Layout may vary.
PART IDENTIFICATION:
MF-NSHT010KX = B
MF-NSHT016KX = D
MF-NSHT020KX = N
MF-NSHT035KX = F
MF-NSHT050KX = H
MF-NSHT075KX = L
F
BIWEEKLY DATE CODE WILL APPEAR ON THE PACKAGING LABEL:
WEEK 1 AND 2 = A
WEEK 51 AND 52 = Z
Packaging Quantity
3,000 pieces per reel
Solder Reflow Recommendations
Notes:
tp
TP
CRITICAL ZONE
T L TO TP
RAMP-UP
TL
•
MF-NSHT models are intended for reflow soldering (including, but not
limited to heating plate, hot air, IR, nitrogen, and vapor phase).
•
Wave soldering is permissible only if the device is on the top of the
PCB, opposite the heat source.
•
Hand soldering is not recommended for these devices.
•
All temperatures refer to the topside of the device, measured on the
device body surface.
•
If reflow temperatures exceed the recommended profile, devices may
not meet the published specifications.
Temperature
tL
Ts max
RAMP-DOWN
Ts min
ts
PREHEAT
25
t 25 °C TO PEAK
•
Compatible with Pb and Pb-free solder reflow profiles.
•
Excess solder may cause a short circuit.
•
Please refer to the Multifuse® Polymer PTC Resettable Fuse Soldering
Recommendations document for more details.
Time
Profile Feature
Pb-Free Assembly
Average Ramp-Up Rate (Tsmax to Tp)
3 °C / second max.
PREHEAT:
Temperature Min. (Tsmin)
Temperature Max. (Tsmax)
Time (Tsmin to Tsmax) (ts)
150 °C
200 °C
60~180 seconds
TIME MAINTAINED ABOVE:
Temperature (TL)
Time (tL)
217 °C
60~150 seconds
Peak Temperature (Tp)
260 °C
Time within 5 °C of Actual Peak Temperature (tp)
20~40 seconds
Ramp-Down Rate
6 °C / second max.
Time 25 °C to Peak Temperature
8 minutes max.
“freeXpansion Design” is a trademark of Bourns, Inc.
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.
MF-NSHT Series Tape and Reel Specifications
MF-NSHT Series
per EIA-481
8.0 ± 0.30
(0.315 ± 0.012)
4.0 ± 0.10
(0.157 ± 0.004)
40.0 ± 0.20
(1.575 ± 0.008)
4.0 ± 0.10
(0.157 ± 0.004)
2.0 ± 0.05
(0.079 ± 0.002)
1.95 ± 0.10
(0.077 ± 0.004)
3.55 ± 0.10
(0.140 ± 0.004)
3.50 ± 0.10
(0.138 ± 0.004)
4.35
(0.171)
1.5 + 0.10/-0.0
(0.059 + 0.004/-0)
3.5 ± 0.05
(0.138 ± 0.002)
1.75 ± 0.10
(0.069 ± 0.004)
6.25
(0.246)
0.6
(0.024)
0.1
(0.004)
0.80 ± 0.10
(0.031 ± 0.004)
1.22 ± 0.10
(0.048 ± 0.004)
390
(15.35)
160
(6.30)
Tape Dimensions
W
P0
10P0
P1
P2
A0
B0 (MF-NSHT010KX~MF-NSHT035KX)
B0 (MF-NSHT050KX~MF-NSHT075KX)
B1 max.
D0
F
E1
E2 typ.
T max.
T1 max.
K0 (MF-NSHT010KX~MF-NSHT035KX)
K0 (MF-NSHT050KX~MF-NSHT075KX)
Leader min.
Trailer min.
Reel Dimensions
185
(7.28)
50
(1.97)
8.4 + 1.5/-0.0
(0.331 + 0.059/-0.0)
14.4
(0.567)
A max.
N min.
W1
W2 max.
P0
T
D0
P2
E1
W2(MEASURED
AT HUB)
COVER
TAPE
F
E2 W
B1
A
N(HUB DIA.)
B0
K0
T1
P1
A0
DIMENSIONS:
MM
(INCHES)
W1(MEASURED
AT HUB)
MF-NSHT SERIES, REV. F 07/20
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.
Bourns
PPTC Resettable
Fuses
3312
- ®2 Multifuse
mm SMD® Trimming
Potentiometer
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.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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