Yes, this component is a "pull" from known fully functional equipment
Why use a "pull"?
SUSTAINABILITY:
The more we can repurpose anything, not just electronic components, the less we will take from the earth as raw materials and all that Ee will not be wasted.
Ee?
Ee (Embodied Energy) is a measure of how much energy was consumed right from the digging up of raw materials to the final completed product and even includes distribution of that product.
If you want to know more (yes please!) then take a look HERE
SUPPLY CHAIN ISSUES:
Electronic supply chains are just a bit maniacal at the moment and don't look to improve in the medium term either. Instead of waiting for that 'brand new' component, perhaps a used (but known fully functioning) device could fit the bill?
Actually in the case of this ISR device, it really irrelevant because they are not manufactured any longer!
Of course, it entirely depends upon the situation that this device is facing, a used (checked) component is fine for non-critical situations, experimentation or even R & D but for mission critical equipment ... well .... I wouldn't!
Many manufacturers used to make these ISR's (Integrated Switching Regulator)
Great as a highly reliable +5V DC source with over-current and temperature protection using a wide input voltage range
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POWER TRENDS - ISR
78ST100 Series Switching Regulator
Switching technology but no components such as inductors to worry about, everything is inside the metal case
Model: 78ST105HC
Output voltage +5V
Input voltage range +7V ~ +30V
High efficiency
Ripple is typically 65mV
Switching frequency is 650Khz
Fast transient response time (typically 100uS)
Over current protected
Over temperature protected
Package details:
Vertical PCB mount
Case is all metal with two securing pins (soldered to the PCB)
Ultra compact module
Dimensions: 24.5mm x 22.75mm x 7.5mm high
Full technical specifications are readily available online for this device
TESTING:
Pulled from broadcast industry equipment, used but in excellent condition cosmetically and tested - fully functioning to specifications.
Solder 'dags' have been removed from all the pins
All pins are straight and have NOT been cut!
If this ISR doesn't suit your purposes, take a look at the POWERBOX ISR's on this website
