PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: femtoSMDC020F
DOCUMENT: SCD28100
REV LETTER: B
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 2
© 2016 Littelfuse,Inc Littelfuse.com
Specifications are subject to change without notice.
Revised July 26, 2016
Specification Status: Released
Maximum Electrical Rating
Voltage: 9VDC
Short Circuit Current: 40A
Notes:
1. All terminations are tin plated.
2. Drawing not to scale
Marking: F
TABLE I. DIMENSIONS:
A
C
E
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
mm:
1.40
1.80
0.35
0.75
0.60
1.00
0.10
0.50
0.075
in:
(0.055)
(0.071)
(0.013)
(0.030)
(0.023)
(0.039)
(0.004)
(0.020)
(0.003)
TABLE II. PERFORMANCE RATINGS:
CURRENT RATINGS**
TIME TO
TRIP**
RESISTANCE
VALUES
TRIPPED-STATE
POWER
DISSIPATION**
AMPERES
AT 0°C
AMPERES
AT 25°C
AMPERES
AT 60°C
AMPERES
AT 85°C
SECONDS
AT 25°C, 2A
OHMS
AT 25°C
WATTS AT
25°C, 9V
HOLD
TRIP
HOLD
TRIP
HOLD
TRIP
HOLD
TRIP
MAX
MIN
MAX*
MAX
0.24
0.53
0.20
0.45
0.14
0.33
0.10
0.22
0.10
0.70
3.00
0.50
* Maximum resistance is measured 1 hour after reflow
** Values Specified were determined using PCB’s with 0.030”x1.0 ounce copper traces.
Agency Recognition: UL, CSA, TÜV
Reference Document: PS300
Precedence: This specification takes precedence over documents referenced herein.
Effectivity: Reference documents shall be the issue in effect on the date of invitation for bid.
CAUTION: 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*
* Halogen Free refers to: Br≤900ppm, Cl≤900ppm, Br+Cl≤1500ppm.
HF
PolySwitch®
PTC Devices
Overcurrent Protection Device
PRODUCT: femtoSMDC020F
DOCUMENT: SCD28100
REV LETTER: B
REV DATE: JULY 26, 2016
PAGE NO.: 2 OF 2
© 2016 Littelfuse,Inc Littelfuse.com
Specifications are subject to change without notice.
Revised July 26, 2016
Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their
own applications. Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, military, aerospace, medical, lifesaving,
life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired
operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation.
Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall
not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse
documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse.