Bill
of materials
UM2170
20/24
DocID030279 Rev 1
Item Quantity Reference
Part/Value
Description
Manufacturer
Order code
40
1
R8
1.05 R, 0.25 W
±0.01
Resistor
Vishay
CRCW12061R05FKEA
41
1
R10
24 K, 0.125 W
±0.01
Resistor
Yageo
RC0805FR-0724KL
42
1
R12
8.2 K, 0.063 W
±0.05
Resistor
Yageo
RC0603JR-078K2L
43
1
R13
4.99 K,
0.1 W
±0.01
Resistor
Yageo
RC0603FR-074K99L
44
1
R14
47 K,
0.1 W
±0.05
Resistor
Yageo
RC0603JR-0747KL
45
1
SW1
Switch
Panasonic
EVP-AA402W
46
3
TP1, TP2,
TP3
Mounting
holes
47
1
T1
EFD20
Transformer
Wurth
750810150
48
1
U1
HVLED815PF
LED driver
ST
HVLED815PFTR
49
1
U2
LDL212
Low dropout
regulator
ST
LDL212
50
1
U3
STM32L051K6U6
Microcontroller
ST
STM32L051K6U6
51
1
U4
SPSGRF, 868 MHz
Low power
sub-GHz
module
ST
SPSGRF-868
