Brochure

© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Surface Mount Fuses
Thin Film > 1206 Size > Very Fast-Acting > 429 Series
429 Series 1206 Fast-Acting Fuse
Description
The 429 Series Fast-Acting SMF is a small (1206 size) thin-
film device designed for secondary protection of circuits
used in space constrained applications such as hand-held
portable electronic devices.
This series is Halogen-Free, Lead-Free and meets the
requirements of the RoHS directive.
Agency Approvals
AGENCY AGENCY FILE NUMBER AMPERE RANGE
E10480 7A
29862 7A
Electrical Characteristics for Series
Features
• RoHS compliant and
Lead-Free 7A device
available-add ‘L’ suffix to
part number.
• Halogen-Free 7A device
available-add ‘HF’ suffix
to the part number
• For new designs up to
5A please consult the
433 or 466 Series
% of Ampere
Rating
Opening Time at 25
O
C
100% 4 hours, Minimum
200% 5 sec., Maximum
300% 0.2 sec., Maximum
Applications
RoHS
Pb
Ampere
Rating
(A)
Amp
Code
Max
Voltage Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance (Ohms)
Nominal
Melting
I
2
t (A
2
sec)
Agency
Approvals
7. 0 0 0 0 7. 24 35A @24VAC/VDC 0.009 4.900 x x
Electrical Specifications by Item
1. Measured at 10% of rated current, 25ºC.
2. Measured at rated voltage.
• Cell phones
• Battery packs
• Digital cameras
• DVD players
• Hard disk drives.
Secondary protection for space constrained applications
such as:
Specifications are subject to change without notice. Application testing is strongly recommended.
Additional Information
Datasheet
Samples
Resources