Brochure

© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
FUSE
Circuit Protection Products and Mounting Accessories
Packaging and Part Numbering
1.-3. 4. 5.-7. 8. 9. 10.
Stelle
3xx X XXX X X X
digit
043
TR3
0
303
370
1
2
372
3
382
4
385
5
391
6
950
Y
373
374
Variant
0
Standard, long leads 18,8 mm
1
long leads 18,8 mm, TR3
392
2
395
4
short leads 4,3 mm
396
5
T²CP
Version
397
0
Standard
1
MP
S
PIP Surface Mount
(
TR5 blister ta
p
e 2x500
p
cs.
)
398
Rated Current Specification
IP
3-di
g
it
399
062
= 62mA example 4.-7. digit
100
= 100mA / 1A / 10A
Pico
125
= 125A 0062 = 62mA
275
0100 = 100mA
0
< 1A 1100 = 1A
1
≥ 1 - < 10A 2100 = 10A
2
≥ 10 - < 100A 3125 = 125A
3
≥ 100A
ta
p
e in bulk 100
p
cs.
,
onl
y
Picofuse 275
bulk 2.500 pcs., only Picofuse 275
Tape, Ammopack
Tape, Ammopack
Tap, Rolle/ Reel
varying production
customized
short leads 3,3 / 3,5 mm (special model)
bulk 1.400 pcs., only TE5
®
/ T²CP / MP / IP
bulk, 200 pcs., TR3 long leads / TR
®
Packaging
Tape, Ammopack 1.000 pcs. TR5
®
bulk, 1.000 pcs. TR5
®
bulk, 300 pcs., TR3 short leads
Explanation
TR5
®
TE5
®
Littelfuse Wickmann Products Part Numbering System
0 X X X X X X X X X X X X X X X
Packaging Type *
A Ammo packed
B Bubble packed
C Chip packed
R Reeled
X Filler
A/X 1
V 5
T 10
S 20
L 50
H 100
F 200
G 250
U 500
M 1000
D 1500
P 2000
E 2500
W 3000
Y 4000
N 5000
K 10000
J 12000
Z Misc.
Options Codes *
RT1 Reel and Tape, 2.062in (52.4mm) lead spacing
RT2 Reel and Tape, 2.50 in (63.5mm) lead spacing
RT3 Reel and Tape, 2.874 in (73mm) lead spacing
E Pigtail lead type fuse
ID Indicating fuse
L RoHS compliant
P Lead-free
Product Series Code
* Not all options and codes listed here are available for all products.
For information about the specific options available for any Littelfuse product,
please refer to the packaging details information within each product data sheet
or contact your Littelfuse products representative.
Ampere Rating Code
Decimal is to far right for whole number
amp ratings, to far left for ratings less than
one, and within center for fractional amp ratings.
Examples:
10A fuse is “010.”
1/4A or 0.25A fuse is “.250”
1 1/2A or 1.5A fuse is “01.5”
1 1/4A or 1.25A fuse is “1.25”
Refer to the Electrical Characteristics tables
presented in each product data sheet
for specific amp rating codes
Packaging Quantity Code *
y
x
Tape and Reel packaging per EIA-296:
Tape width is defined as the width of the tape and reeled fuse (x) as measured from inside tape to inside tape.
Pitch is defined as the space between two tape and reeled fuses (y) as measured from lead to lead.
Example:
437 series fuse is “0437”
Littelfuse Fuse Products Traditional Part Numbering System