Model 1210 Analog Accelerometer
BIAS STABILITY CONSIDERATIONS
Bias temperature hysteresis can be minimized by temperature cycling your model 1210 accelerometer after it has
been soldered to your circuit board. If possible, the assembled device should be exposed to ten cycles from -40 to
+85 EC minimum (-55 to +125 EC recommended). The orientation to the Earth's gravitational field during temperature
cycling should preferably be in the same orientation as it will be in the final application. The accelerometer does not
need to have power applied during this temperature cycling.
PACKAGE DIMENSIONS
(20 PIN LEADLESS CERAMIC CHIP CARRIER)
"L" SUFFIX PACKAGE
INCHES
MIN MAX
0.342 0.358
0.346 0.378
0.055 TYP
MILLIMETERS
K
DIM
C
F
*T
*M
MIN
8.69
8.79
MAX
9.09
9.60
A
B
C
D
E
TERMINAL 20
TERMINAL 1
1.40 TYP
E
Positive
0.095 0.115
0.085 TYP
2.41
2.92
Acceleration
2.16 TYP
F
G
H
J
K
L
* M
N
P
0.050 BSC
0.025 TYP
0.050 TYP
0.004 x 45°
0.010 R TYP
0.016 TYP
0.048 TYP
0.050 0.070
0.017 TYP
1.27 BSC
0.64 TYP
1.27 TYP
0.10 x 45°
0.25 R TYP
0.41 TYP
1.23 TYP
G
A
D
(20 PIN LEADED CHIP CARRIER)
"J" SUFFIX PACKAGE
R
1.27
1.78
0.43 TYP
R
* T
* U
0.023 R TYP
0.085 TYP
0.175 TYP
0.58 R TYP
2.16 TYP
4.45 TYP
N
NOTES: 1. * DIMENSIONS 'M', 'T' & 'U' LOCATE ACCELERATION SENSING ELEMENT'S CENTER OF MASS .
2. LID IS ELECTRICALLY TIED TO TERMINAL 19 (GND).
3. CONTROLLING DIMENSION: INCH.
4. TERMINALS ARE PLATED WITH 60 MICRO-INCHES MIN GOLD OVER 80 MICRO-INCHES MIN NICKEL.
(THIS PLATING SPECIFICATION DOES NOT APPLY TO THE METALLIZED PIN-1 IDENTIFIER MARK ON
THE BOTTOM OF THE J-LEAD VERSION OF THE PACKAGE).
5. PACKAGE: 90% MINIMUM ALUMINA (BLACK), LID: SOLDER SEALED KOVAR.
SOLDERING RECOMMENDATIONS:
RoHS Compliance: The model 1210 does not contain elemental lead and is RoHS compliant.
WARNING: If no-lead solder is to be used to attach the device, we do not recommend the use of reflow soldering
methods such as vapor phase, solder wave or hot plate. These methods impart too much heat for too long of a
period of time and may cause excessive bias shifts. For no-lead soldering, we only recommend the manual "Solder
Iron Attach" method (listed on the next page of this data sheet). We also do not recommend the use of ultrasonic
bath cleaners because these models contain internal gold wires that are thermo sonically bonded.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Silicon Designs, Inc. ! 1445 NW Mall Street, Issaquah, WA 98027-5344 ! Phone: 425-391-8329 ! Fax: 425-391-0446
web site: www.silicondesigns.com
[page 4]
Apr 07