safepulse
Safecast
Open Source HVS for geiger counters.
Components (41)
| Reference | Value | Description |
|---|---|---|
| IC1 | S-35770E01I-K8T2U | Timers & Support Products Counter IC with 2-wire(I2C-bus) interface |
| Q1 | FQT7N10L | |
| Q2 | BC846A | |
| Q3,Q4 | MMBT3906 | |
| U1 | TS4061AICT-1.25 | |
| U2 | 74HC14 | |
| U4 | CD14538BM | |
| U33 | MAX9910EXK+T | |
| C1 | 110pF | |
| C2,C5,C19,C23,C27 | 10uF | |
| C3 | 1nF | |
| C4 | 47uF | |
| C6-C18,C21 | 0.1uF | Unpolarized capacitor |
| C20 | 100pF | |
| C22 | 390pF | |
| C24 | 10nF | |
| C25 | 2.2uF | |
| D1,D2 | BAS16J | |
| D3-D9 | BAV23S | |
| F1 | Polyfuse | |
| FB1,FB2 | 74279220321 | |
| J2 | JST SM04B-SRSS-TB(LF)(SN) | Adafruit Accessories JST SH 4-pin Right Angle Connector (10-pack) - Qwiic Compatible |
| L1 | 4.7uH | |
| R1 | 4.99M | |
| R2 | 10M | |
| R3 | 100K | |
| R4 | 10K | |
| R5,R12,R25 | 100 | |
| R6 | 121k | |
| R7-R10,R26 | 22M | |
| R11,R24 | 33k | |
| R13,R19 | 100k | |
| R14 | 357k | |
| R15 | 220k | |
| R16 | 1M | |
| R17 | 499k | |
| R18 | 1k | |
| R20 | 118K | |
| R21 | 47k | |
| R22 | 20K | |
| R23,R27 | 1.54M |