PowerFilm Solar Cell SP4.2-37 Solar Module, Flexible Thin-Film, 4.2 Volt, 22mA

**PowerFilm Solar Cell SP4.2-37**

Boost your devices with the lightweight, paper-thin, and durable PowerFilm Solar Cell SP4.2-37. Its ultra-thin profile seamlessly integrates for solar recharging or direct power applications.

Ideal for OEM parts and products, this solar cell provides an innovative solution to the common problem of limited power for wireless electronics, suitable for both portable and remote applications. This flexible module offers 22mA at 4.2V under full sunlight, making it perfect for models, prototypes, inventions, and hobby projects.

**Features:**
– Output: 22mA @ 4.2V
– Open Circuit Voltage: 5.9V
– Short Circuit Current: 30mA
– Maximum Power: 0.0924W
– Size: 3.6″ x 1.45″

**SP4.2-37 Series Instructions**

**Leads and Testing:**
The module has copper tape strips at each end for connections. Ensure proper polarity and direct contact with the copper tape when using alligator clips. Scrape away any coating on the copper tape to ensure a good connection.

**Connecting the Module to a Load:**
You can connect the module by soldering, crimping, or using alligator clips. Always check the polarity. For solar modules in the dark, use a diode like 1N5817 to prevent battery drainage.

**Module Polarity Information:**
Identify the positive and negative ends using a digital multimeter. Connect the positive end to the positive load and the negative end to the negative load. Use a minimum 24-gauge wire for connections.

**Soldering:**
Solder from the front side, melting through the clear coating over the copper tape. Use a low-temperature soldering iron (600-650°F) to avoid damaging the module.

**Crimping:**
Mechanically secure a terminal, splice, or contact to the copper strips.

**Alligator Clips:**
While not the most secure, alligator clips can be used for connections.

**Fastening the Module:**
Attach the module using epoxy, silicon, super glue, 3M Super 77 spray, or double-sided acetic tape. Avoid getting adhesive on the front (dark) side of the module to maintain performance.

**Connecting Modules for Higher Voltage and Current:**
For higher voltage, connect modules in series; for higher current, connect in parallel. Only connect similar modules together and avoid exceeding an output voltage of 48V to ensure safety.

Upgrade your electronic projects with PowerFilm Solar Cell SP4.2-37, offering reliable and sustainable power solutions.