Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
Operating Temperature Range
FT129 ........................................ –55
°C to 125°C
FT329 ..................................................... 0
°C to 70°C
Storage Temperature Range ................. – 65
°C to 150°C
ORDER PART
NUMBER
TJMAX = 150°C, θJA = 160°C/W
FT129AH
FT129BH
FT129CH
(Note 1)
Lead Temperature (Soldering, 10 sec).................. 300
°C
Reverse Breakdown Current ................................. 30mA
Forward Current ..................................................... 2mA
TJMAX = 150°C,
θJA = 440°C/W, θJC = 80°C/W
ORDER PART
NUMBER
FT329AZ
FT329BZ
FT329CZ
FT329DZ
FT329AH
FT329BH
FT329CH
FT329DH
BOTTOM VIEW
Z PACKAGE
3-LEAD PLASTIC TO-92
BOTTOM VIEW
H PACKAGE
2-LEAD TO-46 METAL CAN
FT129A/
FT329A/FT329B/
FT129B/FT129C
FT329C/FT329D
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
VZ
Reverse Breakdown Voltage
TA = 25°C, 0.6mA ≤ IR ≤ 15mA
6.7
6.9
7.2
6.6
6.9
7.25
V
VZ
Reverse Breakdown Voltage
TA = 25°C, 0.6mA ≤ IR ≤ 15mA
9
14
9
20
mV
IR
Change with Current
1mA
≤ IR ≤ 15mA
q
12
mV
VZ
Temperature Coefficient
IR = 1mA,
Temp
FT129A/FT329A
q
6
10
6
10
ppm/°C
ppm/
°C
FT129A/FT329B
q
15
20
15
20
ppm/
°C
FT129A/FT329C
q
30
50
30
50
ppm/
°C
FT329D
q
50
100
ppm/
°C
Change in Temperature
Coefficient
1mA
≤ IR ≤ 15mA
q
1
ppm/
°C
rZ
Dynamic Impedance
TA =25°C, IR = 1mA
0.6
1
0.8
2
1mA
≤ IR ≤ 15mA
q
0.8
1
en
RMS Noise
TA =25°C, 10Hz ≤ f ≤ 10kHz
7
20
7
100
V
VZ
Long Term Stability
TA = 45°C ±0.1°C, IR = 1mA ±0.3%
20
ppm/kHr
Time
Note 2: To determine the junction temperature as a function of the
ambient temperature, see
θJA for each package.
Absolute Maximum Ratings
Package/Order Information
Electrical Characteristics
FT129/FT329
6.9V Precision Voltage Reference
CONFIDENTIAL
06/08