BETAContact rating50 mA – 20 A DIP · rocker 1 A · toggles 3–20 A (resistive)
Latching SPST on-off switch
Switch (Toggle, Rocker and DIP) Specifications
Review Switch (Toggle, Rocker and DIP) electrical specifications, operating conditions and package details.
Package view
Key specifications
Pick the switch by the load: a DIP switch sets logic levels (50 mA), a rocker or toggle switches power. Wire the switch in the positive feed so the load is dead when it is off, and stay inside the rating for the kind of load (lamps and motors draw several times their running current at switch-on).
Contact resistance10–100 mΩ maximum, initial
Rated voltage24–250 V · DIP 24 V DC, toggles 28–30 V DC / 120–250 V AC, rocker 250 V AC
Life6 000–100 000 cycles by switch
Package details
7101SYZQE · Miniature toggle
| Property | Details |
|---|---|
| Manufacturer | C&K (Littelfuse) |
| Part number | 7101SYZQE |
| Package | Miniature toggle |
| Connections | 2 pins |
| Mounting | Panel mount · wired to a 2-pin header |
| Lead pitch | 2.54 mm pitch |
| Package code | switch-connector |
| Thermal reference | Contact heating at the rating: (5 A)² × 10 mΩ = 0.25 W |
Selected parts and terminals
Manufacturer scope and page conventions
Manufacturer specifications 6 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Reference parts | C&K (Littelfuse) 7101SYZQE · Shou Han KCD11-2P · CTS 206-1S · E-Switch 200MSP6T1B1M2QE · 100SP1T1B1M1QE · ST4SP2DT1C2 | One sheet each |
| Contact form | SPST on-off, latching | The C&K and E-Switch 200 / 100 toggles are SPDT: the common terminal 2 and one end terminal make the on-off switch |
| Terminal 1 | Toggle lug 1 (E-Switch: terminal 3) · rocker tab · DIP pin 1 (square) | ProTech pin 1 · footprint pad 1 |
| Terminal 2 | Toggle terminal 2 (common) · rocker tab · DIP pin 2 | ProTech pin 2 · footprint pad 2 |
| Panel switches | Toggles and rocker wired to a 2-pin header | Their own lugs are not PCB pins |
| Proteus symbol | SWITCH | 2 pins; ProTech’s Toggle Switch models it |
No specifications match. Try a parameter name or a unit.
A panel switch’s wires go to the header; the header is what the PCB carries.
The six switches
From each manufacturer’s sheet · the numbers ProTech’s model and checks use
Manufacturer specifications 13 parameters
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| Specification | C&K (Littelfuse) 7101SYZQE | Shou Han KCD11-2P | CTS 206-1S | E-Switch 200MSP6T1B1M2QE | E-Switch 100SP1T1B1M1QE | E-Switch ST4SP2DT1C2 |
|---|---|---|---|---|---|---|
| Contact rating (resistive) | 5 A at 120 V AC or 28 V DC; 2 A at 250 V AC (silver) | 1 A at 250 V AC (no DC rating in the sheet) | 50 mA at 24 V DC switching; 100 mA or 50 V DC carrying | 3 A at 120 V AC or 28 V DC; 1 A at 250 V AC (silver) | 5 A at 120 V AC or 28 V DC; 2 A at 250 V AC (silver) | 20 A at 6–30 V DC; 16(8) A at 125/250 V AC |
| Minimum load | gold contacts: 0.4 VA max at 20 V | not in datasheet | not in datasheet | gold contacts: 0.4 VA max at 20 V | gold contacts: 0.4 VA max at 20 V | not in datasheet |
| Contact resistance | 10 mΩ maximum (initial) | 100 mΩ maximum (initial) | 50 mΩ maximum (initial) | 20 mΩ maximum (initial) | 10 mΩ maximum (initial) | 50 mΩ maximum (initial) |
| Insulation resistance | ≥ 10⁹ Ω | ≥ 100 MΩ at 500 V DC | ≥ 1000 MΩ | ≥ 1000 MΩ | ≥ 1000 MΩ | ≥ 50 MΩ |
| Dielectric strength | 1000 V rms | 1500 V AC between terminals | 500 V AC for 1 min | 1000 V rms | 1000 V rms | 1500 V rms |
| Operation | lever, two positions 25° each side | rocker, two positions (O and —) | slide, two positions | lever, two positions 25° each side | lever, two positions 25° each side; torque max 5 kg·cm | 17 mm metal bat, two positions (OFF-ON) |
| Travel | lever 10.67 mm above the bushing | rocker 12 × 6.3 mm, about 3 mm proud | travel 2.03 mm | lever 9.40 mm above the bushing | lever 10.41 mm above the bushing | bat 17.00 mm above the bushing |
| Life | 100 000 electrical cycles at full load | 10 000 mechanical cycles | 10 000 cycles at 50 mA, 24 V DC | 30 000 mechanical, 6 000 at full load | 40 000 mechanical, 6 000 at full power | 10 000 electrical cycles |
| Contact bounce | not in the sheet | not in the sheet | not in the sheet | not in the sheet | not in the sheet | not in the sheet |
| Operating temperature | −30 to +85 °C | −25 to +85 °C | −55 to +85 °C | −40 to +85 °C | −40 to +85 °C | −10 to +55 °C |
| Size | case 12.70 × 6.86 mm, 1/4-40 bushing, hex nut | bezel 15 × 10.5 mm, panel cut-out 14 × 8.8 mm | 9.78 × 3.96 mm, 7.6 mm high | case 8.13 × 8.64 mm, 10-48 bushing 5.59 mm, nut 7.00 mm A/F | case 12.70 × 8.89 mm, 1/4-40 bushing 8.89 mm | case 28.80 × 21.00 mm, 15/32-32 bushing Ø12 mm, IP68 |
| Terminals | 4.70 mm (SPDT; pins 2 common and 1 used for ON-OFF) | 5.0 mm (2 pins, snap-in panel mount) | 7.62 mm row spacing (2 pins) | 2.54 mm (PC pins 1-2-3; pins 2 common and 3 used for OFF-ON) | 4.70 mm (solder lugs 1-2-3; pins 2 common and 3 used for ON-OFF) | 1/4 in quick-connect tabs (panel mount) |
| Look | chrome bat lever, nickel-plated hex nut and bushing, dark case | black bezel and rocker, O and bar marks | blue housing, white slider, ON arrow | side view: case, nickel bushing and nut, chrome bat lever; its tip lit red OFF, green ON (ProTech's display; the real bat is plain) | side view: case, nickel bushing and nut, chrome bat lever; its tip lit red OFF, green ON (ProTech's display; the real bat is plain) | side view: case, nickel bushing and nut, chrome bat lever; its tip lit red OFF, green ON (ProTech's display; the real bat is plain) |
No specifications match. Try a parameter name or a unit.
Contact resistance is the initial maximum; it rises with wear and contamination. Ratings are for resistive loads.
How ProTech models it
The same numbers drive the simulator, its checks and this page
Manufacturer specifications 6 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Closed | Rc of the switch chosen, between pins 1 and 2 | 10 mΩ toggle · 100 mΩ rocker · 50 mΩ DIP · 20 mΩ / 10 mΩ / 50 mΩ E-Switch 200 / 100 / ST4 |
| Open | No branch | Insulation resistance not modelled |
| Rating check | Warns above the switch’s current or voltage | 5 A / 28 V · 1 A / 250 V · 50 mA / 24 V · 3 A / 28 V · 5 A / 28 V · 20 A / 30 V |
| Position | Saved with the circuit | A click or Enter flips it while running |
| Size | Drawn at true size | Toggle 12.70 × 6.86 mm, rocker 15 × 10.5 mm, DIP 9.78 × 3.96 mm, E-Switch toggles 8.13, 12.70 and 28.80 mm wide |
| LED toggle switch | The E-Switch 200, 100 and ST4 (small, medium, large) | Its lit tip, red OFF and green ON, is ProTech’s display; the real bat is plain |
No specifications match. Try a parameter name or a unit.
Change the switch in Properties: the drawing, rating, contact resistance and PCB footprint follow it.
Switching a 12 V, 0.5 A lamp feed
Toggle or rocker in the positive wire
Manufacturer specifications 6 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Toggle drop | 5 mV | 0.5 A × 10 mΩ |
| Toggle contact heating | 2.5 mW | (0.5 A)² × 10 mΩ |
| Rocker drop | 50 mV | 0.5 A × 100 mΩ |
| Rocker contact heating | 25 mW | (0.5 A)² × 100 mΩ |
| Rocker on DC | Check first | The KCD11 sheet gives 1 A at 250 V AC and no DC rating |
| DIP switch | Never | Rated 50 mA switching; use it for logic inputs |
No specifications match. Try a parameter name or a unit.
Lamps draw about ten times their running current when cold: derate the switch for them.
Package
7101SYZQE · Miniature toggle
Manufacturer specifications 8 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Toggle | case 12.70 × 6.86 mm, 1/4-40 bushing, hex nut | 4.70 mm (SPDT; pins 2 common and 1 used for ON-OFF) |
| Rocker | bezel 15 × 10.5 mm, panel cut-out 14 × 8.8 mm | 5.0 mm (2 pins, snap-in panel mount) |
| DIP switch | 9.78 × 3.96 mm, 7.6 mm high | 7.62 mm row spacing (2 pins) |
| E-Switch 200 | case 8.13 × 8.64 mm, 10-48 bushing 5.59 mm, nut 7.00 mm A/F | 2.54 mm (PC pins 1-2-3; pins 2 common and 3 used for OFF-ON) |
| E-Switch 100 | case 12.70 × 8.89 mm, 1/4-40 bushing 8.89 mm | 4.70 mm (solder lugs 1-2-3; pins 2 common and 3 used for ON-OFF) |
| E-Switch ST4 | case 28.80 × 21.00 mm, 15/32-32 bushing Ø12 mm, IP68 | 1/4 in quick-connect tabs (panel mount) |
| Header (panel switches) | 2.54 mm pitch, Ø1 mm drill | KiCad PinHeader_1x02_P2.54mm_Vertical |
| DIP footprint | 7.62 mm row spacing, Ø0.8 mm drill | KiCad SW_DIP_SPSTx01_Slide_9.78x4.72mm_W7.62mm_P2.54mm |
No specifications match. Try a parameter name or a unit.
Footprints are KiCad’s, the same as ProTech’s PCB page.
Connections by function
Select a pin for its function, connection guidance and electrical notes.