SK-42D01 Side-Handle Toggle Switch_4P2T Four-Pole Double-Throw_D Series Side-Insert DIP_Multi-Channel Synchronous Switching_Sinyin Electronic Original Manufacturer
Industrial PLC multi-channel output hard isolation | Medical equipment four-channel safety start/stop | Audio equipment 4-channel signal on/off | High-reliability domestic alternative solution
SK-42D01 is a 4P2T (four-pole double-throw) side-handle toggle switch from Sinyin Electronic' D Series, specifically designed for multi-channel synchronous control. A single component can achieve physical-level synchronous on/off switching for 4 independent circuits, completely replacing 4 single-pole switches or complex relay arrays, significantly reducing BOM cost, PCB area, and assembly complexity. The product features a nickel-plated metal shielding shell and side-insert DIP packaging, with a rated load of DC 50V 0.3A, and complies with RoHS 2.0 and REACH environmental directives. ⚠️ Note: 4P2T and 2P4T have fundamentally different functional logic. Before selection, be sure to confirm that the system requirement is "multi-channel synchronous switching" rather than "multi-position selection."
- Product Introduction
- Product Introduction
I. Core Engineering Value of 4P2T: Why "Four-Pole Double-Throw" Is Needed?
In industrial control and precision equipment, there is often a need forsynchronous start/stop or mode switching of multiple independent signals. Traditional solutions rely on 4 single-pole switches or MCU + analog switches, which present three major pain points:
- ❌ Timing inconsistency: When operating 4 independent switches, millisecond-level delays occur, causing brief system anomalies (such as motor phase sequence errors);
- ❌ High BOM cost: 4 switches + PCB area + SMT labor ≈ 1.8~2.5 times the cost of a single 4P2T switch;
- ❌ Reliability Risk: Multi-device failure probability stacking, MTBF significantly reduced.
The 4P2T architecture of SK-42D01 perfectly solves the above issues：
- ⚡ Physical-level synchronization: A single handle drives 4 sets of contacts, with switching time difference < 1μs, ensuring strict synchronization of 4 signal channels;
- Specifications
- Detailed Parameters
| Product Model | SK-42D01 (D Series) | Circuit Configuration | 4P2T / 4 Poles 2 Positions (Confirmed by Drawing and Physical Sample) |
| Functional Meaning |
4 Independent Circuits (Pole 1~4), Each Group Synchronously Switches to Position 1 or Position 2 When the Handle Is Toggled (Typically ON-OFF or ON-ON) → AchievesPhysical-Level Synchronous Control of 4 Signals, with No Timing Deviation |
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| Mounting Method | DIP Side-Mount Through-Hole (Side Mount THT) | Pin Configuration | 16 Pin Functional Pins + Bottom Reinforcing Pins (4P×2T×2 Contacts = 16 Pins) |
| Rated Load | DC 50V 0.3A(Directly noted at bottom of drawing) | Dimensions | 15.0 × 6.2 × 7.8 mm (Front View per Drawing) |
| Handle travel | 2 TRAVRL (approx. 2mm per step) | Housing Material | Nickel-plated metal (EMI shielding, confirmed by image reflection characteristics) |
| Actuation force / lifespan | Refer to the official specification sheet (common actuation force for general-purpose types is 1.5~3.0N, mechanical lifespan ≥10,000 cycles) | ||
| Certification Standards | RoHS 2.0 / REACH | 3D model support | The official website provides STEP format downloads (including 16-pin package) |
- Welding Conditions
- Welding Conditions
Use a 30-watt soldering iron, with the tip temperature not exceeding 350 °C, and a soldering time of 3 seconds.
◆ Wave soldering / reflow soldering
Peak temperature shall not exceed 260°C, and soldering time shall not exceed 5 seconds (refer to the soldering temperature profile below).
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