RHEF550 Datasheet, PDF (1/2 Pages) Littelfuse – Overcurrent Protection Device

PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: RHEF550
DOCUMENT: SCD26361
REV LETTER: E
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 2
Specification Status: Released
Electrical Rating
Voltage: 16VDC MAX
Current: 100A MAX
Insulating Material:
Cured, Flame Retardant Epoxy Polymer
meets UL94 V-0 Requirements
Lead Material:
20 AWG Tin Plated Copper
(0.8 mm [0.032] nom. diameter)
Marking:
Manufacturer’s Mark
H5.5 ^{and Part Identification}
Lot Identification
TABLE I. DIMENSIONS:
A
B
MIN MAX MIN MAX
mm: --
11.2
--
18.9
in*:
-- (0.44) -- (0.74)
*Rounded off approximation
C
MIN MAX
4.3
5.8
(0.17) (0.23)
D
MIN MAX
7.6
--
(0.3)
--
E
MIN MAX
--
3
-- (0.12)
F
TYP
1.2
(0.05)
TABLE II. PERFORMANCE RATINGS:
I HOLD
RATED
CURRENT
CURRENT
RATINGS
TIME TO
TRIP
INITIAL RESISTANCE ONE-HOUR NOMINAL TRIPPED
VALUES
POST-TRIP
POWER
RESISTANCE
DISSIPATION
STANDARD TRIP
AMPS
AT 25°C
HOLD
AMPS AT
25°C
HOLD TRIP
SECONDS AT
25°C, 27.5A
MAX
OHMS
AT 25°C
MIN
MAX
OHMS
AT 25°C
MAX
WATTS AT
25°C 16V
TYP
5.5
5.5 10.0
6.0
0.015
0.025
0.037
3.5
Agency Recognitions:
Reference Documents:
Precedence:
Effectivity:
CAUTION:
UL, CSA, TUV.
PS300
This specification takes precedence over documents referenced herein.
Reference documents shall be the issue in effect on the date of invitation for bid.
Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame.
Materials Information
ROHS Compliant
ELV Compliant
Pb-Free
Halogen Free*
HF
* Halogen Free refers to: Br≤900ppm, Cl≤900ppm, Br+Cl≤1500ppm.
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised July 26, 2016
littelfuse.com