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MF-RX020/72-AP

Description
resettable fuses - pptc 0.20a 72v 1.50ohm
CategoryCircuit protection   
File Size536KB,6 Pages
ManufacturerBourns
Websitehttp://www.bourns.com
Environmental Compliance
Download Datasheet Parametric View All

MF-RX020/72-AP Overview

resettable fuses - pptc 0.20a 72v 1.50ohm

MF-RX020/72-AP Parametric

Parameter NameAttribute value
ManufactureBourns
Product CategoryResettable Fuses - PPTC
RoHSYes
Hold Curre0.2 A
Trip Curre0.4 A
Current Rating - Max-
Maximum Voltage72 VDC
Resistance2.84 Ohms
Mounting StyleThrough Hole
Termination StyleRadial
Operating Temperature Range- 40 C to + 85 C
Lead Spacing5.1 mm
Dimensions7.4 mm L x 3.1 mm W x 12.7 mm H x 7.4 mm D
PackagingAmmo Pack
Factory Pack Quantity2000
TypePTC Resettable Fuses
*R
oH
S
**
CO
HA
LO & MP
LI
GE
AN
N
T
FR
EE
Features
n
72 V rated
n
Radial leaded devices
RX1
1
418 0
0S
Applications
Almost anywhere there is a low voltage power
supply, up to 72 V and a load to be protected,
including:
n
Security and fire alarm systems
n
Loudspeakers
n
Power transformers
n
Cured, flame retardant epoxy polymer
C
OM
PL
IA
N
insulating material meets UL 94 V-0
requirements
n
RoHS compliant* and halogen free**
n
Agency recognition:
T
Electrical Characteristics
V max.
Volts
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
I max.
Amps
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
LE
AD
F
RE
E
*R
oH
S
MF-RX/72 Series - PTC Resettable Fuses
Initial
Resistance
Ohms
at 23 °C
Min.
Max.
1.50
2.84
1.00
1.95
0.76
1.36
0.52
0.86
0.41
0.77
0.27
0.48
0.18
0.40
0.14
0.31
0.15
0.25
0.12
0.19
0.09
0.14
0.08
0.12
0.05
0.08
0.04
0.06
0.03
0.05
1 Hour (R1)
Post-Trip
Resistance
Ohms
at 23 °C
Max.
4.40
3.00
2.10
1.29
1.17
0.72
0.60
0.47
0.38
0.30
0.22
0.19
0.13
0.10
0.08
Max. Time
To Trip
Amperes
at 23 °C
1.0
1.25
1.5
2.0
2.5
3.25
3.75
4.5
5.5
6.75
8.0
9.25
12.5
15.0
18.75
Seconds
at 23 °C
2.2
2.5
3.0
3.9
4.0
5.3
6.3
7.2
8.2
9.6
11.4
12.6
15.6
19.8
24.0
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
0.40
0.45
0.50
0.55
0.75
0.90
0.90
1.00
1.50
1.70
1.90
2.10
2.50
2.80
3.20
Model
MF-RX020/72
MF-RX025/72
MF-RX030/72
MF-RX040/72
MF-RX050/72
MF-RX065/72
MF-RX075/72
MF-RX090/72
MF-RX110/72
MF-RX135/72
MF-RX160/72
MF-RX185/72
MF-RX250/72
MF-RX300/72
MF-RX375/72
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
0.20
0.40
0.25
0.50
0.30
0.60
0.40
0.80
0.50
1.00
0.65
1.30
0.75
1.50
0.90
1.80
1.10
2.20
1.35
2.70
1.60
3.20
1.85
3.70
2.50
5.00
3.00
6.00
3.75
7.50
Environmental Characteristics
Operating/Storage Temperature ........................... -40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State .................................................. 125 °C
Passive Aging ....................................................... +85 °C, 1000 hours ............................................... ±5 % typical resistance change
Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours ............................. ±5 % typical resistance change
Thermal Shock ..................................................... +85 °C to -55 °C, 10 times .................................... ±10 % typical resistance change
Solvent Resistance ............................................... MIL-STD-202, Method 215 ................................... No change
Vibration ............................................................... MIL-STD-883C, Method 2007.1,........................... No change
Condition A
Test Procedures And Requirements For Model MF-RX/72 Series
Test
Test Conditions
Accept/Reject Criteria
Visual/Mech. ......................................................... Verify dimensions and materials ........................... Per MF physical description
Resistance ............................................................ In still air @ 23 °C ................................................. Rmin
R
Rmax
Time to Trip ........................................................... 5 times Ihold, Vmax, 23 °C ................................... T
max. time to trip (seconds)
Hold Current ......................................................... 30 min. at Ihold ..................................................... No trip
Trip Cycle Life ....................................................... Vmax, Imax, 100 cycles ........................................ No arcing or burning
Trip Endurance ..................................................... Vmax, 48 hours..................................................... No arcing or burning
UL File Number .................................................... E174545
http://www.ul.com/ Follow link to Certifications, then UL File No., enter E174545
TÜV Certificate Number ....................................... R 02057213
http://www.tuvdotcom.com/ Follow link to “other certificates”, enter File No. 2057213
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. ** Bourns considers a product to be “halogen free” if (a) the Bromine (Br)
content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
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.
Ro VE LEA
HS RS D
C ION FRE
OM S E
PL AR
IA E
NT
*

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