2 layers38.1 × 12.7 mm
Ckt irsense tiny2pc
IowaScaledEngineering/ckt-irsense
CKT-IRSENSE Reflective Infrared Proximity Sensor
17 parts1
2 layers50.8 × 25.4 mm
Ckt irsense split
IowaScaledEngineering/ckt-irsense1CKT-IRSENSE Reflective Infrared Proximity Sensor
- Size
- 50.8 × 25.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 26
- Pads
- 73
- Tracks, vias
- 153, 24
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Jan 2015
- Updated
- 31 Aug 2026
Overview
Ckt irsense split is an open-source printed circuit board by IowaScaledEngineering, from the IowaScaledEngineering/ckt-irsense repository on GitHub. It is a 2-layer board of 50.8 × 25.4 mm with 26 parts on 26 nets, routed with 153 tracks and 24 vias.
It is built around the LTV-357T, AP7381-33Y and SM04B-SRSS-TB, with the SSM6N357R,LF among its other parts. Its parts include 7 resistors, 5 diodes, 4 connectors, 3 ICs and 2 capacitors. It belongs with the sensors and measurement boards of this library.
Main components
4
LTV-357T
SOP-4-2.54mm-55℃~+110℃ 1.2V 200mV 3.75kV 35V 3us 4us 50% 50mA 50mA 600% 6V DC SOP-4-2.54mm Transistor, Photovoltaic Output Optoisolators ROHSLite-OnPre-Ordered Products
AP7381-33Y
SOT-89-40℃~+125℃@(Tj) 1 150mA 1V@(100mA) 2.5uA 3.3V 40V 60dB Fixed Positive Short Circuit Protection、Thermal Shutdown SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SM04B-SRSS-TB
Header SR 1.0 SMT side entry, 1mm pitchJSTUncategorisedSSM6N357R,LF
TSOP-6F1.5nC@5V 1W 2 N-Channel 2.4Ω@3V 2.5pF 20pF 2V 60V 60pF 650mA N-Channel TSOP-6F MOSFETs ROHSToshibaMOSFETs
README
README.mdThis is the software library, example applications, and hardware design files for the Iowa Scaled Engineering CKT-IRSENSE Reflective Infrared Proximity Sensor
The product can be found at: http://www.iascaled.com/store/CKT-IRSENSE
Hardware use documentation (the manual) can be found in the /doc/ directory.
Like all public Iowa Scaled Engineering designs, the CKT-IRSENSE is both open hardware and open source software. Please refer to the hardware and software license files in this repository for details.
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H2, H3, H4 |
| 4 | SM04B-SRSS | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1, J2, J3, J4 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R4, R7 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R6 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 330 | Resistor_SMD:R_0805_2012Metric | R2, R5 |
| 2 | BLUE LED | LED_SMD:LED_0805_2012Metric | D4, D5 |
| 2 | CDBM140G | ISE_Generic:SOD-123T | D1, D2 |
| 2 | LTV-357T | Package_SO:SO-4_4.4x3.6mm_P2.54mm | U2, U3 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | AP7381-33Y | ISE_Generic:SOT-89-3 | U1 |
| 1 | GREEN LED | LED_SMD:LED_0805_2012Metric | D3 |
| 1 | SSM6N357R | ISE_Generic:TSOP6F | Q1 |
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Questions
How big is the Ckt irsense split PCB?
It measures 50.8 × 25.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ckt irsense split use?
26 parts, built around the LTV-357T, AP7381-33Y, SM04B-SRSS-TB and SSM6N357R,LF. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Ckt irsense split KiCad files?
From the IowaScaledEngineering/ckt-irsense repository on GitHub, at the commit this page was made from: the board is kicad/ckt-irsense-split/ckt-irsense-split.kicad_pcb and its schematic kicad/ckt-irsense-split/ckt-irsense-split.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ckt irsense split design in my own project?
Its repository states no licence, so its author keeps all rights: ask IowaScaledEngineering before reusing the design.