004959
Issue 4
SM SERIES
MICRO SWITCH Premium Subminiature Basic Switches
DESCRIPTION FEATURES
The industry-defining name in snap- Industry-leading mechanical life of up
action switches, Honeywell MICRO to 10,000,000 operations
SWITCH premium subminiature Selection of actuation, electrical
switches are designed for repeatability termination, and operating
and enhanced product life. The MICRO characteristics along with high-
SWITCH SM Series delivers consistent temperature construction options
performance within a range of Wide temperature range of
conditions. -54C to 204C [-65F to 400F]
MIL-PRF-8805 qualified listings in a
The MICRO SWITCH SM Series small
lightweight, small package
size and light weight are combined with
FAA-PMA approvals for commercial
ample electrical capacity, precision
aircraft
operation, and extended life. Featuring
POTENTIAL APPLICATIONS
Choice of silver or gold-plated, or gold
high precision and repeatability, the
Precision switch assemblies for
bifurcated contacts to handle a variety
SM Series offers gold contacts for low-
commercial aircraft to monitor doors
of electrical load requirements
energy switching and gold bifurcated
for closed and locked position
UL/CSA, cUL, ENEC, and CE approvals
contacts for maximum reliability.
Landing gear monitor
Bifurcated contacts provide parallel
Precision switch assemblies for
VALUE TO CUSTOMERS
redundancy within the SM switch.
commercial cockpit applications
Industry-leading life cycle rating
for pushbuttons, toggle, or joystick
The SM switch is available for power-
reduces the need to
assemblies
duty switching up to 11 A (Vac) or 1/4
replace switches over life in an OEM
Precision switch assemblies in military
HP (Vac).
platform reducing
applications
total system cost
Assemblies for industrial pressure
Low operating forces
DIFFERENTIATION switches and temperature switches
Mil-qualified listings
Very wide temperature range allows Power generation fuel level (gas
Life of up to 10,000,000 cycles
for years of reliable performance in the and oil)
harshest of conditions
MIL-PRF-8805 qualified listings
Operating forces as low as 0,06 N [6 g]
PORTFOLIO
and differential travel as low as
The SM Series of premium
0,025 mm [0.001 in] delivers
subminiature basic switches
consistent, precise switch
are a part of a strong
characteristics
offering of submins including SX
Series (premium) and ZM, ZM1,
ZD, ZX, and ZW Series (standard)
switches. MICRO SWITCH PREMIUM SUBMINIATURE BASIC SWITCHES, SM SERIES
TABLE 1. SPECIFICATIONS
CHARACTERISTIC PARAMETER
low operating force to 2 oz. max; power load switching capability to 11 A; motor load handling capacity to 1/4
Differentiator
HP (Vac)
Ampere rating 0.1 A to 11 A
Circuitry SPDT
Operating force 0.04 oz to 2 oz
Termination quick connect, solder, pcb
Actuator pin plunger, straight lever, roller lever, simulated roller lever, paddle lever
Voltage 115 Vac, 125 Vac, 250 Vac, 30 Vdc
Agency approvals UL, CE, CSA, ENEC, MIL-PRF-8805, FAA-PMA
Agency file information CE: 61058-1; UL: E12252; CSA: LR41372
Operating temperature -54C to 121C [-65F to 250F]; select catalog listings 204C [400F]
Contacts silver, gold plated, bifurcated gold
Housing phenolic
Sealing sealed plunger on 411SM Series, other SM Series not weather sealed
up to 10,000,000 operations for 11SM listings
Mechanical life up to 80,000 operations for 1SM/41SM listings
up to 1,000,000 operations for gold bifurcated contact
Size 12,7 mm H x 6,35 mm W x 20,3 mm L [0.5 in H x 0.25 in W x 0.8 in L]
Electrical data and UL codes
Table 2. UL Electrical Ratings
TABLE 2. UL ELECTRICAL RATINGS
CODE CIRCUITRY ELECTRICAL DATA AND UL CODES
5 A res., 3 A ind., (sea level),
J SPDT
5 A res., 2.5 A ind., (50,000 feet), 28 Vdc. UL rating: 5 A, 250 Vac
K SPDT UL rating: 5 A, 125 or 250 Vac
M SPDT UL rating: 11 A and 1/4 hp, 125 or 250 Vac
N SPDT 1 A res., 0.5 A ind., 30 Vdc. UL rating: 1 A, 125 Vac
P SPDT 1 A res., 30 Vdc. UL rating: .1 A, 125 Vac
5 A res., 3 A ind., 2.4 A lamp load (sea level),
R SPDT 5 A res., 2.5 A ind., 2.4 A lamp load, (50,000 feet), 28 Vdc.
5 A res., 5 A ind., 1.5 A lamp load, 115 Vac. 60 Hz (sea level)
S SPDT UL rating: 4 A, 250 Vac
2 sensing.honeywell.com