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LVR005K

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27
13
134
Radial-leaded Devices
PolySwitch Resettable Devices
Table R7 - Tape and Reel Specifications for Radial-leaded Devices
RGEF and RHEF devices are available in tape and reel packaging per EIA468–B/IEC60286–2 standards. See Figures R24 and R25 for details.
Dimension EIA
Description Mark Dimension (mm) Tolerance
Carrier tape width W 18 -0.5/+1.0
Hold-down tape width W
4
11 Minimum
Top distance between tape edges W
6
3 Maximum
Sprocket hole position W
5
9 -0.5/+0.75
Sprocket hole diameter D
0
4 ± 0.2
Abscissa to plane (straight lead) RGEF250 to RGEF1400 H 18.5 ± 2.5
Abscissa to plane (kinked lead) RHEF050 to RHEF1500 H
0
16.0 ± 0.5
Abscissa to top RGEF250 to RGE6F00, RHEF050 to RHEF450 H
1
32.2 Maximum
Abscissa to top* RGEF700 to RGEF1400, RHEF600 to RHEF1500 H
1
45.0 Maximum
Overall width w/lead protrusion RGEF250 to RGEF600, RHEF050 to RHEF450 C
1
43.2 Maximum
Overall width w/lead protrusion RGEF700 to RGEF1400, RHEF600 to RHEF1500 C
1
55 Maximum
Overall width w/o lead protrusion RGEF250 to RGEF600, RHEF050 to RHEF450 C
2
42.5 Maximum
Overall width w/o lead protrusion RGEF700 to RGEF1400, RHEF600 to RHEF1500 C
2
54 Maximum
Lead protrusion L
1
1.0 Maximum
Protrusion of cut-out L 11 Maximum
Protrusion beyond hold-down tape I
2
Not specified —
Sprocket hole pitch P
0
12.7 ± 0.3
Device pitch RGEF250 to RGEF700, RHEF050 to RHEF600 — 25.4 ± 0.61
Device pitch RGEF800 to RGEF1400, RHEF650 to RHEF1500 — 25.4 ± 0.6
Pitch tolerance — 20 consecutive ± 1
Tape thickness t 0.9 Maximum
Overall tape and lead thickness* RGEF250 to RGEF1100, RHEF050 to RHEF1000 t
1
2.0 Maximum
Overall tape and lead thickness* RGEF1200 to RGEF1400, RHEF1300, RHEF1500 t
1
2.3 Maximum
Splice sprocket hole alignment — 0 ± 0.3
Body lateral deviation
h0 ± 1.0
Body tape plane deviation
Δp0 ± 1.3
Ordinate to adjacent component lead RGEF300 to RGEF1100, RHEF400 to RHEF750 P
1
3.81 ± 0.7
Ordinate to adjacent component lead RGEF1200 to RGEF1400, RHEF1000 to RHEF1500 P
1
7.62 ± 0.7
Lead spacing* RGEF250 to RGEF1100, RHEF050 to RHEF900 F 5.08 +0.75 /-0.5
Lead spacing* RGEF1200 to RGEF1400, RHEF1000 to RHEF1500 F 10.2 + 0.75/-0.5
Reel width RGEF250 to RGEF600, RHEF050 to RHEF450 w
2
56.0 Maximum
Reel width* RGEF600 to RGEF1400 & RHEF600 to RHEF1500 w
2
63.5 Maximum
Reel diameter a 370.0 Maximum
Space between flanges less device* w
1
4.75 ± 3.25
Arbor hold diameter c 26.0 ± 12.0
Core diameter* n 91.0 Maximum
Box — 64/372/362 Maximum
Consecutive missing places — None —
Empty places per reel — 0.1% Maximum
*Differs from EIA specification.
Figure R24 - EIA Referenced Taped Component Dimensions for Radial-leaded Devices
Cont'd
...
W
4
H
0
H
1
P
1
D
0
P
0
AB
I
2
L
1
F
Reference plane
Direction of unreeling
Cross section A - B
Δ
h
Δ
h
L
t
W
5
H
1
W
H
Δ
p
Δ
p
C
2
C
1
135
13
Radial-leaded Devices
Figure R25 - EIA Referenced Reel Dimensions for Radial-leaded Devices
RUEF 250 U
Blank = Packaged in bags
-1 = 25.4mm (1.0 inch) minimum lead length
-2 = Tape and reel
-AP = Ammo pack
-X.X = Special lead cut length (inch)
Modifier
K = Standard kinked lead
B = Special kinked lead
S = Straight lead
U = Uncoated device
Hold current indicator
Product series - An "F" at the end of product series
indicates Pb-free version of product.
2
Part Numbering System for Radial-leaded Devices
n
c
Cross section
Optional shape: Circular or polygonal
Reel
Upper side
Lower side
a
w
2
w
1
Tape
Direction
of
unreeling
WARNING: Application Limitations for the LVR Product Line
1) Users should independently evaluate the suitability of and test each product selected for their own application.
2) This product should not be used in an application where the maximum interrupt voltage or maximum interrupt current can
be exceeded in a fault condition. Operation beyond the maximum ratings or improper use may result in device damage and
possible electrical arcing and flame.
3) A PTC device is not a fuse - it is a nonlinear thermistor that limits current. Because under a fault condition all PTC devices
go into a high resistance state but not open circuit, hazardous voltage may be present at PTC locations.
4) The devices are intended for protection against occasional overcurrent or overtemperature fault conditions and should not
be used when repeated fault conditions or prolonged trip events are anticipated.
5) In most applications, power must be removed and the fault condition cleared in order to reset a PTC device. However, under
certain unusual conditions, a PTC device may automatically reset. Accordingly, PTC devices should not be used in an
application where an automatic reset could create a safety hazard, such as garbage disposals and blenders.
6) It is the responsibility of the user to determine the need for back up or fail safe protection to prevent damage that may occur
in the event of abnormal function or failure of the PTC device.
7) Operation in circuits with a large inductance can generate a circuit voltage (Ldi/dt) above the rated voltage of a PTC device.
8) Devices are not recommended for reflow soldering.
9) Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic,
thermal, or mechanical procedures for electronic components.
10) PTC devices are not recommended to be installed in applications where the device is constrained such that its PTC properties
are inhibited, for example in rigid potting materials or in rigid housings, which lack adequate clearance to accommodate device
expansion.
11) Contamination of the PTC material with certain silicone-based oils or some aggressive solvents can adversely impact the
performance of the devices.
WARNING:
Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame.
The devices are intended for protection against occasional overcurrent or overtemperature fault conditions and should not be
used when repeated fault conditions or prolonged trip events are anticipated.
Contamination of the PPTC material with certain silicon based oils or some aggressive solvents can adversely impact the
performance of the devices.
Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic,
thermal, and mechanical procedures for electronic components.
Operation in circuit with a large inductance can generate a circuit voltage (L
di
/
dt
) above the rated voltage of the
PolySwitch resettable device.
13
136
Radial-leaded Devices
PolySwitch Resettable Devices
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27

LVR005K

Mfr. #:
Buy LVR005K
Manufacturer:
Littelfuse
Description:
PTC RESET FUSE 240V 50MA RADIAL
Lifecycle:
New from this manufacturer.
Delivery:
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