The Omron D2S-01L13-F is a compact snap-action basic switch designed for precise mechanical position, presence, and movement detection. It belongs to the D2S subminiature switch family and combines an SPDT contact arrangement with a low-force simulated roller lever and solder terminals.

The switch changes contact state when a moving cam, cover, linkage, or other mechanical component presses the end of the stainless-steel lever. The lever transfers the movement to the internal snap-action mechanism, producing a rapid transition between the normally closed and normally open contacts.

The D2S-01L13-F is rated for micro-load switching rather than high-power control. Its gold-alloy crossbar contacts support resistive loads up to 0.1 A at 125 VAC or 0.1 A at 30 VDC, with a reference minimum applicable load of 1 mA at 5 VDC.

A one-piece insert-molded terminal structure helps prevent solder flux from traveling into the switch during board or wire assembly. This feature improves manufacturing reliability, but the IP40 enclosure is neither waterproof nor fully sealed against dust, cleaning fluids, or condensation.

Model Number Explanation

The exact suffix matters when selecting or replacing the switch. For example, D2S-01L13 uses the same actuator style but requires more operating force, while D2S-01L13-FD uses self-clinching PCB terminals instead of solder terminals.

Key Specifications

Simulated Roller Lever Actuator

The D2S-01L13-F uses a simulated roller lever rather than a pin plunger, plain hinge lever, or separate rotating roller.

Its stainless-steel lever has a curved contact surface at the operating end. This shape provides some of the smooth cam-following behavior associated with a roller actuator without using a separate rotating plastic roller.

The design is useful when the operating object moves across the actuator rather than pressing directly downward. A sloped cam, sliding cover, gear mechanism, or moving linkage can progressively deflect the lever and activate the internal switch mechanism.

A simulated roller lever should not be confused with the D2S L2 hinge roller lever. The L2 version includes a physical polyacetal roller, while the L13 actuator obtains its roller-like profile from the curved stainless-steel lever itself.

The operating direction must follow the direction shown in the manufacturer’s drawing. Applying force from the wrong angle, twisting the lever sideways, or using the switch as a mechanical stop can deform the actuator and reduce operating accuracy.

Low Operating Force

The -F designation identifies the low-force version. For the D2S-01L13-F, maximum operating force is only 0.18 N, or approximately 18 gf. Minimum releasing force is 0.02 N.

By comparison, the standard D2S-01L13 has a maximum operating force of 0.49 N. The low-force model is therefore better suited to lightweight mechanisms, thin covers, delicate actuators, or systems where the target cannot provide substantial mechanical force.

Low operating force also means the switch is more sensitive to vibration, actuator misalignment, dimensional tolerance, and accidental contact. The mechanical design should provide a clear and repeatable operating stroke without allowing the actuator to hover around the switching point.

The published operating position is 11.4 ±0.8 mm, with a maximum free position of 15.5 mm. Minimum overtravel is 1.0 mm, and maximum movement differential is 0.8 mm.

Adequate overtravel should be provided after the switch changes state, but the actuator must not be forced beyond its permitted movement. Excessive travel or impact can shorten lever and internal mechanism life.

SPDT Snap-Action Contacts

The D2S-01L13-F provides three electrical terminals:

• COM: common contact
• NC: normally closed contact
• NO: normally open contact

When the actuator is in its free position, COM is connected to NC. Pressing the simulated roller lever past the operating point disconnects COM from NC and connects COM to NO. When the operating force is removed, the internal mechanism returns to its original state.

Because the switch uses a snap-action mechanism, the electrical transition occurs quickly after the actuator reaches the trip point. Contact movement is not directly proportional to the slow movement of the external lever.

This action provides a more decisive electrical signal and reduces the time the contacts remain between states. The switch may nevertheless produce contact bounce, so digital inputs may require hardware filtering, software debouncing, or both.

The D2S-01 version uses gold-alloy crossbar contacts intended for low-current signals. The crossbar structure creates multiple potential contact points and is more suitable for micro-load detection than the silver-alloy rivet contacts used in higher-current D2S versions.

Electrical Ratings and Micro Loads

The D2S-01L13-F is rated for resistive loads of:

• 0.1 A at 125 VAC
• 0.1 A at 30 VDC

These are not interchangeable with the 5 A or 10.1 A ratings available in other D2S family versions. The 01 code specifically identifies the 0.1 A gold-contact model.

The minimum applicable load is stated as 1 mA at 5 VDC as a reference reliability value. Circuits operating substantially below this level may be more sensitive to contamination, contact resistance, electrical noise, and input leakage.

Maximum initial contact resistance is 100 mΩ for the low-force D2S-01 configuration. The maximum referenced inrush current is 1 A for both the NC and NO circuits.

Inductive loads, lamps, motors, solenoids, and highly capacitive inputs can produce inrush or switching transients far above their steady-state current. A suitable contact-protection circuit or electronic interface should be used where necessary.

When integrating the switch into a custom controller, engineers should consider input pull-up or pull-down resistance, debounce filtering, ESD protection, connector placement, and mechanical support. MOZPCB provides custom PCB fabrication for embedded control, detection, and industrial electronics.

Flux-Resistant Terminal Construction

A key feature of the D2S family is its one-piece insert-molded terminal construction. This structure helps prevent liquid solder flux from creeping along the terminals and entering the internal contact mechanism during soldering.

Flux resistance is valuable in production because contamination inside a micro-load switch can increase contact resistance or cause intermittent operation. However, “flux resistant” does not mean washable, waterproof, or hermetically sealed.

The switch carries an IEC IP40 rating. It is protected against certain solid objects but has no rated protection against water ingress. It should not be exposed to PCB washing fluid, spray, oil, condensation, conductive dust, or corrosive chemicals unless the complete application has been evaluated.

For manual soldering, the manufacturer specifies a soldering iron of no more than 60 W and a soldering time of no more than five seconds per terminal. Recommended automatic solder-bath conditions are 260 ±5°C for a maximum of five seconds.

Mechanical Installation

The switch body is approximately 19.8 mm long and 6.4 mm wide. Two mounting holes allow it to be secured with M2.3 screws.

The recommended mounting torque is 0.23–0.26 N·m when plain or spring washers are used. The mounting surface should be flat because tightening the switch against an uneven structure can deform the housing and cause incorrect operation.

The D2S-01L13-F should function only as a detection device. It should not be used as the physical end stop for a door, cam, carriage, or moving mechanism. A separate stop should absorb the mechanical energy after the switch has been actuated.

The cam profile should press the lever smoothly and provide sufficient overtravel. Sharp impact, sideways loading, lever twisting, and repeated operation beyond the permitted stroke can shorten product life.

Durability and Environmental Performance

Mechanical durability is specified at 30 million operations minimum under the manufacturer’s test conditions. Electrical durability is rated at 200,000 operations minimum for D2S-01 models.

Maximum mechanical operating frequency is 400 operations per minute, while maximum electrical operating frequency is 30 operations per minute. Actual life and operating rate depend on the load, stroke, cam speed, contact protection, environment, and mounting accuracy.

The operating-temperature range is –25°C to +85°C without icing or condensation. These limits can be converted for regional documentation using the ResiCalc temperature conversion calculator.

Published environmental characteristics include vibration resistance from 10 to 55 Hz at 1.5 mm double amplitude. For low-force models, destructive shock resistance is 500 m/s², while malfunction shock resistance is 200 m/s² under the stated test conditions.

Typical Applications

The D2S-01L13-F can be used in:

• Cover and enclosure position detection
• Printer and document-feeding mechanisms
• Office automation equipment
• Small appliance control mechanisms
• Vending and dispensing machines
• Access-door and tray detection
• Consumer electronics
• Gaming and amusement equipment
• Lightweight cam-operated mechanisms
• Industrial control panels
• Product-presence mechanisms
• Mechanical home-position detection
• Low-current interlock signals
• Compact test and measurement equipment

The switch is not automatically suitable for personnel-protection or machine-safety functions. Safety applications require certified devices, appropriate circuit architecture, fault monitoring, and a complete risk assessment.

Additional switch types can be reviewed through the MOZ Electronics electromechanical switches.

Selection and Replacement Considerations

Closely related D2S variants are not always mechanically interchangeable:

Before approving a substitute, verify the actuator style, operating force, operating position, terminals, contact material, electrical rating, mounting dimensions, and required environmental protection.

The official manufacturer database currently lists D2S-01L13-F as in production. Older stock may carry Omron markings, while newer documentation or packaging may reference Aratas following the separation of Omron’s electronic-components business.

Summary

The Omron D2S-01L13-F is a compact SPDT basic switch optimized for low-force, low-current mechanical detection. Its simulated roller lever, 0.18 N maximum operating force, gold-alloy crossbar contacts, solder terminals, and 0.1 A electrical rating make it suitable for precise position and presence detection in compact equipment.

Its insert-molded terminal construction improves resistance to solder-flux ingress, while mechanical durability of up to 30 million operations supports repetitive detection applications. Correct selection requires recognizing that the switch is IP40 rather than waterproof and that the -F suffix identifies the low-force version, not packaging.