The above curves were derived from placing test samples in an oven at 25 ℃, 40 ℃, 60 ℃ and
70℃, increasing current flow through the sample at a rate of 0.1 A/minute and recording the current
value when the sample trips.
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br)
and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
SA Series Breaker
(Surface Mount Thermal Cutoff Device)
Product Dimensions
8.0
(.315)
1.3
(.051)
0.15
(.006)
5.4 +0.25/-0.05
(.213 +.010/-.002)
1.3
(.051)
3.2 +0.15/-0.05
(.126 +.006/-.002)
1.17
(.046)
1.09
(.043)
1.0 ± 0.05
(.039 ± .002)
2.0 ± 0.05
0.2
R
(.079 ± .002)
(.008)
4 PLCS.
0.48
(.019)
DIMENSIONS:
MM
(INCHES)
0.08 +0.10/-0.08
(.003 +.004/-.003)
0.1 ± 0.01
(.004 ± .0004)
Product Structure
CASE
ARM
TERMINAL
ARM
COVER
PLATE
Circuit Diagram
NORMAL CIRCUIT
CIRCUIT
AFTER OPENING
BASE
TERMINAL
PTC
BIMETAL
DISC
CONTACT
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
SA Series Breaker
(Surface Mount Thermal Cutoff Device)
Surface Mount Recommendations
The Model SA Series breaker is designed for reflow and hand soldering. It is not designed or warranted for flow soldering. The following
conditions must be adhered to:
Reflow Soldering:
The recommended reflow soldering
conditions are as follows:
150 ~ 180 °C ............... 100 ~ 150 seconds
≤220 °C........................ 20 ~ 40 seconds
255 ~ 260 °C ............... 5 ~ 10 seconds
Process breaker in a reflow furnace using
the profile shown above three times,
followed by positioning the breaker in
ambient temperature of +25 °C for 8 hours.
Hand Soldering:
Place a solder iron on each of the terminal
ends for 5 seconds at +350 °C, followed by
positioning the breaker in ambient
temperature of +25 °C for 8 hours.
270
240
210
180
150
120
90
60
30
0
Recommended Reflow Profile
Temperature (°C)
TEMPERATURE
_ TIME
150 ~ 180 °C ..... 100 ~ 150 Seconds
≤220
°C ..... 20 ~ 40 Seconds
245 °C ..... Peak
0
60
120
180
240
300
360
Time (Seconds)
Do not expose the breaker to temperatures exceeding +260 °C.
Recommended Land Pattern
0.9
(.035)
1.6
(.063)
9.0
(.354)
5.8
(.228)
1.6
(.063)
0.6
(.024)
2.4
(.094)
Recommended Mask Thickness: 0.12 mm
Recommended Solder Particle Size: 30 µm
0.9
(.035)
DIMENSIONS:
MM
(INCHES)
Mounting Cautions
In order to protect the housing and mechanical parts inside from deformation, prevent excessive load at the time of part absorption / part
deployment and mounting. A part absorption nozzle more than 2 mm in diameter with a 3 N (5 N max.) mounting load is recommended. Any
shock to the product by the nozzle during the mounting procedure may have a negative influence on the function of the breaker.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Outer Box (690 mm x 344 mm x 136 mm) ....................................................................................................................50,000 pcs. (fixed)
Marking ..........................................A label will be attached on the reel and outer box which includes the following items, at a minimum:
Part name, part number, quantity, lot number, safety approval mark (UL, etc.),
company name (Bourns KK) and any other items required by the customer
REEL
10.0
DIA.
(.394)
90.0
DIA.
(3.543)
2.0
(.079)
2.8
(.110)
2.0
(.079)
330.0 ± 2.0
(12.992 ± .079)
DIA.
13.0 ± 0.2
(.512 ± .008)
R
5.0
(.197)
80.0 ± 1.0
(3.150 ± .039)
DIA.
0.8
0.6
0.4
0.2
2.0 ± 0.5
(.079 ± .020)
35 °
13.0 ± 0.2
DIA.
(.512 ± .008)
21.0 ± 0.8
DIA.
(.827 ± .031)
1.0
R
(.039)
17.5 ± 1.0
(.689 ± .039)
21.5 ± 1.0
(.846 ± .039)
CENTER HOLE
ENLARGEMENT
CARRIER TAPE
8.00 ± 0.1
(.315 ± .004)
2.00 ± 0.1
(.079 ± .004)
4.00 ± 0.1
(.157 ± .004)
1.75 ± 0.1
(.069 ± .004)
7.50 ± 0.1
(.295 ± .004)
5.65
(.222)
5°
DIA.
1.50 +0.1/-0
(.059 +.004/-.000)
16.00 +0.3/-0.1
(.630 +.012/-.004)
3.75 ± 0.1
(.148 ± .004)
8.45 ± 0.1
(.333 ± .004)
1.30 ± 0.1
(.051 ± .004)
NOTES:
1) The corner and ridge radiuses (R) of inside cavity
are 0.3 mm / (.012 in.) max.
2) Cumulative tolerance of 10 pitches of the sprocket
hole is ±0.2 mm / .008 in.).
3) Measuring of cavity positioning is based on cavity
center in addordance with JS/IES standard.
0.30 ± 0.05
(.012 ± .002)
1.50
(.059)
5°
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
SA Series Breaker
(Surface Mount Thermal Cutoff Device)
Typical Part Marking
DATE CODE:
MONTH (1~9, X, Y, Z)
DATE
YEAR
MACHINE NO.
ROMAN NUMERAL (I, II, III,
ETC
.) or
ARABIC NUMERAL (
1, 2, 3, ETC.
) = OKAYAMA FACTORY
ALPHABET = SHIGA FACTORY
9016L
11
SA
SERIES DESIGNATOR
MANUFACTURER’S
INTERNAL CODE
(ALPHANUMERIC CHARACTER)
77SB0
TERMINAL TYPE
(0 = 4 TERMINALS, 1.3 mm LENGTH)
RESIN TYPE
ARM MATERIAL
S = Cu ALLOY HIGH CURRENT TYPE)
TRIP TEMPERATURE - °C
(72, 77, 82, 85)
Application Temperature Range
........................................... -30 ~ 100 °C
Storage Conditions
1) The breaker must be stored in the standard packaging with the following conditions:
ambient temperature of -10 to +40 °C, RH <75 % with no radical temperature
change, direct sunshine, excessive vibration or shock.
2) Avoid storage locations where there is a possibility of generating corrosive gas
s
uch as from salt breeze, chlorine, hudrogen sulfide, ammonium, sulfide-oxidation,
hydrogen chloride, acetate, etc.
3) Storage period should be no longer than 24 months from date of shipment.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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