Toggle Switches

Part Number	Description / PDF	Quantity
C3910BA Bulgin	SWITCH TOGGLE SPDT 16A 125V	456
C1700H Bulgin	SWITCH TOGGLE SPST 20A 250V	265
C1710H Bulgin	SWITCH TOGGLE SPDT 20A 250V	30
C1700HOAAC Bulgin	SWITCH TOGGLE ON-OFF	1257
C3911BA Bulgin	SWITCH TOGGLE SPDT 16A 125V	23
C3972BG Bulgin	SWITCH TOGGLE DPDT 16A 125V	0
C3920BA Bulgin	SWITCH TOGGLE SPDT 16A 125V	0
C803HB Bulgin	SPST NYLON LIT TOGGLE SWITCH	0
C3900BA-2HEX Bulgin	SWITCH TOGGLE SPST 20A 125V	0
S3950BA Bulgin	SWITCH TOGGLE DPST 20A 125V	0
C3911BE Bulgin	SWITCH TOGGLE SPDT 16A 125V	0
C1722H Bulgin	SWITCH TOGGLE SPDT 20A 250V	0
S3900BE Bulgin	SWITCH TOGGLE SPST 20A 125V	0
C1720R Bulgin	SWITCH TOGGLE SPDT 20A 250V	0
C3902BA Bulgin	SWITCH TOGGLE SPST-NC 16A 125V	0
C3970BG Bulgin	SWITCH TOGGLE DPDT 16A 125V	0
C3950BA-2HEX Bulgin	SWITCH TOGGLE DPST 20A 125V	0
S3960BA Bulgin	SWITCH TOGGLE DPDT 16A 125V	0
S3911BA Bulgin	SWITCH TOGGLE SPDT 16A 125V	0
T3900BA Bulgin	SWITCH TOGGLE SPST 20A 125V	0

Toggle Switches

1. Overview

Toggle switches are manually operated electrical components used to open or close circuits by mechanical movement. They serve as fundamental interface elements in electronic systems, enabling users to control power flow or signal transmission. These switches remain critical in modern technology due to their reliability, simplicity, and cost-effectiveness across industrial, commercial, and consumer applications.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Lever Toggle Switch	Single or multi-position operation with lever actuator	Power control in audio equipment
Slide Toggle Switch	Linear sliding motion for circuit control	Mode selection in portable electronics
Sealed Toggle Switch	IP67+ waterproof and dustproof design	Marine control panels
Illuminated Toggle Switch	Integrated LED for visual status indication	Aircraft instrument panels

3. Structure and Components

Typical toggle switches consist of: - Actuator: Lever, rocker, or slide mechanism (thermoplastic/nylon) - Contact System: Silver-plated copper alloy contacts for low resistance - Insulation Housing: Flame-retardant polymer (UL94 V-0 rated) - Mounting Hardware: Threaded bushing with lock nut (brass/steel) - Terminal System: Quick-connect or PCB-mount terminals

4. Key Technical Specifications

Parameter	Typical Range	Importance
Rated Current	0.1-20A	Determines maximum load capacity
Operating Voltage	12-600VAC/DC	Defines electrical system compatibility
Electrical Life	50,000-200,000 cycles	Indicates long-term reliability
Contact Resistance	5-50m	Impacts power efficiency
IP Rating	IP20-IP68	Determines environmental protection

5. Application Fields

Consumer Electronics: Smart home devices, gaming consoles
Industrial Equipment: CNC machine control panels
Medical Devices: Emergency stop switches in diagnostic equipment
Transportation: Automotive HVAC control systems
Telecommunications: Network router power switches

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
C&K Components	PTS524 Series	Subminiature slide switch (IP67)
Eaton	HK Series	Heavy-duty toggle switch (15A/125V)
Omron	TL-S Series	Space-saving rocker switch
TE Connectivity	ET Series	High-vibration resistance design
Honeywell	MFS Series	Hermetically sealed toggle switch

7. Selection Guidelines

Verify current/voltage ratings against application requirements
Assess environmental conditions (temperature, humidity, vibration)
Evaluate required actuation force and travel distance
Consider panel cutout dimensions for installation
Check for industry certifications (UL/CSA/IEC)

8. Industry Trends Analysis

Key trends shaping toggle switch development include: - Miniaturization for portable electronics (down to 6mm form factor) - Integration with smart systems (IoT-enabled switches) - Enhanced reliability through nanocoating technologies - Increased adoption of RoHS-compliant materials - Growth in customized actuator designs for human-machine interfaces