EX-31A

Allegro MicroSystems, Inc.
ACS711 - Current Sensor Sensor Evaluation Board
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 620-1927-ND 5 1 $138.88 $138.88 $138.88 $138.88 $138.88 $138.88

F1058

Littelfuse
Current Sensor 50mA Channel Current Sensor Probe
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey F10585-ND 2 1 $99.79 $93.92 $85.11 $80.42 $78.07 $78.07

ASEK-02-T-KIT

Allegro MicroSystems, Inc.
Sensor Evaluation Kit for Hall-Effect Sensor Ics
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey ASEK-02-T-KIT 0 1 $831.25 $831.25 $831.25 $831.25 $831.25 $831.25
AVNET Europe ASEK-02-T-KIT 0 1

MS3116F12-10S

BEI Sensors
Sensor Cables / Actuator Cables MATING CONNECTOR
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
element14 APAC MS3116F12-10S 24 1 * $134.55 * $97.55 * $90.66 * $90.66 * $90.66 * $90.66
Mouser Electronics MS3116F12-10S 7 1 $108.23 $105.52 $105.52 $105.52 $105.52 $105.52

1 INCH-D-4V

All Sensors Corporation
Sensor 1" H2O D 4V DUAL
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 442-1012-ND 90 $97.00 $73.00 $67.93 $60.58 $60.58 $60.58
Verical Marketplace 1 INCH-D-4V 1 1 $74.82 $74.82 $74.82 $74.82 $74.82 $74.82

10 INCH-D-4V

All Sensors Corporation
Sensor 10" H2O D 4V DUAL
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 442-1016-ND 35 $97.02 $72.72 $67.93 $60.58 $60.58 $60.58
Arrow North American Components 10 INCH-D-4V 0 10 $96.89 $96.89 $96.89 $94.47 $94.47 $94.47
Verical Marketplace 10 INCH-D-4V 10 1 $210.17 $186.13 $186.13 $186.13 $186.13 $186.13

1 INCH-G-4V

All Sensors Corporation
Sensor 1" H2O G 4V DUAL
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 442-1013-ND 41 $97.02 $72.72 $67.93 $60.58 $60.58 $60.58
Verical Marketplace 1 INCH-G-4V 2 1 $74.82 $72.13 $72.13 $72.13 $72.13 $72.13

10 INCH-G-4V

All Sensors Corporation

$74.56

Sensor 10" H2O G 4V DUAL
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 442-1017-ND 9 $97.02 $72.72 $67.93 $60.58 $60.58 $60.58

30 INCH-G-4V

All Sensors Corporation
Sensor 30" H2O G 4V DUAL
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 442-1021-ND 0 $97.02 $97.02 $97.02 $97.02 $97.02 $97.02
Verical Marketplace 30 INCH-G-4V 1 1 $74.82 $74.82 $74.82 $74.82 $74.82 $74.82

10 INCH-D-HGRADE-MINI

All Sensors Corporation
Sensor 10" H2O D MV DUAL
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 442-1068-ND 0 $61.53 $61.53 $61.53 $61.53 $61.53 $61.53