Set of 5 HK19F SHG mini DPDT relays for PCB mounting - Coil voltages available: 5V DC, 12V DC, and 24V DC. Includes models such as HK19F DC5V SHG, HK19F DC12V SHG, and HK19F DC24V SHG. - Configuration: 8-pin footprint with DPDT (two form C) contacts, providing 2 normally open (NO) and 2 normally closed (NC) contacts. - Size reference: the package size is represented by HK19F DC24V SHG for compatibility and mounting planning. - Mounting and compatibility: compact mini power relays designed for PCB type mounting, suitable for various DC voltage applications and easy replacement in existing boards. - Set contents: a 5-piece relay assortment with different coil voltages, designed around common PCB pin configurations for straightforward integration. - Key benefits: enables direct switching of DC signals and loads from control circuitry while keeping control and load connections separate; compact footprint helps improve board density; standardized 8-pin DPDT arrangement supports versatile wiring on PCBs. - Practical use scenarios: - Scenario 1: Microcontroller driven control circuits where a low-current logic signal must switch a DC load such as a small motor, pump, or solenoid. - Scenario 2: Electrical control panels and automation boards that require isolated switching of DC lines for sensors, actuators, or relayed indicators. - Scenario 3: Test benches and development boards where different DC supply voltages (5V, 12V, 24V) are used and quick relay replacement is beneficial. - How to use: ensure the coil voltage matches the control supply on the board, place the 8-pin relay on the PCB, and connect the NO and NC contacts to the desired load paths for reliable switching of DC circuits.