Product Description

ISSUE DATE: 2020-2-19
Revision No.: 0.1
Specification No: WTM1B15
Page: 7 of 16
MODEL NO：WTM1B15 Transmitter of WPC QI EPP
ENGINEERING SPECIFICATION SHEET
3 ENVIRONMENTAL SPECIFICATION
3.1 COOLING
Natural Air Cooling
3.2 TEMPERATURE
Operation within specification: -10 to 50 degrees C.
Storage: -20 to 85
℃
Short Duration Storage Temperature Limits (ie. Shipping) -40 to +85
℃
3.3 HUMIDITY
Operation: 10% to 85% relative humidity, non-condensation.
Storage: 10% to 85% relative humidity, including condensation.
3.4 CALCULATED MEAN TIME BETWEEN FAILURES (MTBF)
Power Bank shall have a calculated MTBF of greater than 400,000 hours, calculated utilizing
MIL-HDBK-217F with the following assumptions:
Output load: Rated full load
Ambient temperature: 25 degrees C
3.5 WEIGHT
<100g
4 REGULATORY COMPLIANCE
4.1 EMC SPECIFICATION
4.1.1 FCC REQUIREMENTS
WTM1B15 shall comply with the radiated and conducted emission requirements for FCC Part 15 Class B.