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Raychem Corporation 300 Constitution Drive Menlo Park, CA 94025 800-227-4856 FAX 800-227-4866
R
PolySwitch(R) PTC Devices
Overcurrent Protection Device
PRODUCT: MICROSMD050
DOCUMENT: SCD24402 PCN: 598379 REV LETTER: D REV DATE: FEBRUARY 26, 2000 PAGE NO.: 1 OF 1
Specification Status: Released
Maximum Electrical Rating
Voltage: 13.2VDC Current: 40A
Notes: 1. All terminations are tin/lead plated. 2. Devices can be wave soldered. 3. Drawing not to scale Marking:
TABLE I. DIMENSIONS:
A MIN mm: 3.00 in:* 0.118 MAX 3.43 0.135 MIN 2.35 0.092 B MAX 2.80 0.111 MIN 0.38 0.015 C MAX 0.62 0.025 D MIN 0.25 0.010 E MIN 0.20 0.008
*Rounded off approximation
TABLE II. PERFORMANCE RATINGS:
IHOLD ** CURRENT TRIP LIMITS** RATED CURRENT AMPERES AMPERES AMPERES AMPERES AT 20C AT -40C AT 20C AT 60C HOLD HOLD TRIP HOLD TRIP HOLD TRIP 0.50 0.76 1.52 0.50 1.00 0.35 0.70 TIME TO TRIP ** SECONDS AT 20C, 5A MAX 0.1 SECONDS AT 20C, 8A MAX 0.05 RESISTANCE TRIPPEDVALUES STATE POWER DISSIPATION** OHMS WATTS AT AT 20C 20C, 13.2V MIN MAX* MAX 0.25 0.90 0.8
*Maximum resistance is measured 1 hour after reflow. ** Values specified were determined using PCB's with 0.030"X1.5 ounce copper traces.
Reference Documents: Precedence: Effectivity: CAUTION:
PS300, E. N. SMD1.0x 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.

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