General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print. A subsidiary of
TT electronics plc
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
· Inherent reliability
· Custom configurations available
· Bonded leads not susceptible to solder reflow problems
· Absolute tolerence to ±0.1% - ratio accuracy to ±0.05%
· Absolute TCR to ±25 ppm/°C - ratio tracking to ±5ppm/°C
1900HT / 4700HT SERIES
IRC Advanced Film Division
The IRC 1900HT and 4700HT Series is the ultimate combination of precision performance, reliability, and long term stability in a low
profile, TaNFilm® DIP and SIP packages. The rugged welded lead construction combined with the inherent passivation characteristics
of tantalum nitride film insure superior continuous performance in high temperature applications over the installed life of the part.
Electrical Data
TaNFilm® High Temperature
DIP and SIP Networks
Package
Type Size Schematic Ohmic
Range
Package
Power
Element
Power
Rated Voltage
(not to exceed
rated power)
Temperature
Range
DIP
14
Isolated
Schematic A 100Ω to 100KΩ
1.12W
0.08W 100V
-55°C to +200°C
Bussed
Schematic B 1.00KΩ to 50KΩ
16
Isolated
Schematic A 100Ω to 100KΩ
1.28W
Bussed
Schematic B 1.00KΩ to 50KΩ
SIP
6
Isolated
Schematic G 50Ω to 50KΩ
0.24W
0.08W 50V
Bussed
Schematic C 2.00KΩ to 25KΩ
8
Isolated
Schematic G 50Ω to 50KΩ
0.32W
Bussed
Schematic C 2.00KΩ to 25KΩ
Sputtered tantalum
nitride with passivation
oxide layer
Thermo-compression
bonded leads provide
exceptional reliability
Ceramic sandwich construction with
high temperature epoxy encapsulent
HT Series Issue November 2008 Sheet 1 of 3
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
IRC Advanced Film Division
A
0.250″
0.080″ Max
0.025″
± 0.005
0.020″ ± 0.001 Typ
0.135″ + 0.015
- 0.010
0.105″ ± 0.020
0.050″ ± 0.003
0.050″ ± 0.015
0.100″ ± 0.005
Typ. Non-Cumulative
meniscus
0.300″
+0.015/-0.010
0.010″
0.020″ Max
0.010″ ± 0.001
0.205″
LEAD MATERIAL:
CDA 110 COPPER ½ HARD (EIP)
PLATED 30-50 µIN. NICKEL
25µIN MINIMUM GOLD
Physical Data
TaNFilm® High Temperature
DIP and SIP Networks
# OF
LEADS DIM A
14 0.700" ± 0.020
16 0.800" ± 0.020
1900HT DIP Series
Schematic B
21 3 . . .
N-1
R1
NN-2 . . .
R1
Schematic A
1 2 3 . . .
N-1
N
N-2 . . .
... ...
21 3
R1
4
R2
Schematic G
21 3
R1
N
R2RN-1
Schematic C
N-1 N
...
RN-1
R2R3
R2
Schematic A Schematic B
N = Number of pins
HT Series Issue November 2008 Sheet 2 of 3
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
IRC Advanced Film Division
Ordering Data
TaNFilm® High Temperature
DIP and SIP Networks
4700HT SIP Series # OF
LEADS DIM A
6 0.580" ± 0.015
8 0.780" ± 0.015
Environmental Data
Environmental Test
MIL-PRF-55342
Performance
Typical Maximum
Thermal Shock ±0.02% ±0.10%
Short Time Overload ±0.02% ±0.05%
High Temperature Exposure ±0.03% ±0.10%
Effects of Solder ±0.01% ±0.10%
Moisture Resistance ±0.03% ±0.10%
Life
(1000 hours, 200°C, no load) ±0.08% ±1.0%
Life
(1000 hours, 150°C, rated power) ±0.02% ±0.05%
Power Derating Curve
50 150 200
100
50
10
% Of Rated Power
100
Temperature in °C
Package Prefix
DIP = 1900HT Series; SIP = 4700HT SIP Series
Model
1987HT = 14-pin DIP bussed schematic B
1989HT = 14-pin DIP isolated schematic A
1998HT = 16-pin DIP bussed schematic B
1999HT = 16-pin DIP isolated schematic A
4761HT = 6-pin SIP bussed schematic C
4769HT = 6-pin SIP isolated schematic G
4781HT = 8-pin SIP bussed schematic C
4789HT = 8-pin SIP isolated schematic G
Physical Data (continued)
LEAD MATERIAL:
CDA 110 COPPER ½ HARD (EIP)
PLATED 30-50 µIN. NICKEL
25µIN MINIMUM GOLD
Pin 1 Indicator
0.187″ ± 0.010
A
0.130″ + 0.008/-0.010
0.020″ ± 0.003
0.100″ ± 0.005
0.135″+ 0.015/-0.010 0.015″ Min
Clean Lead
Above Seating Plane
0.050″ ± 0.003
0.045″ ± 0.015
0.070″ ± 0.010
0.322″ Ref
0.010″ ± 0.001 0.026″ ± 0.003
Schematic B
21 3 . . .
N-1
R1
NN-2 . . .
R1
Schematic A
1 2 3 . . .
N-1
N
N-2 . . .
... ...
21 3
R1
4
R2
Schematic G
21 3
R1
N
R2RN-1
Schematic C
N-1 N
...
RN-1
R2R3
R2
Schematic G Schematic C
N = Number of pins
HT Series Issue November 2008 Sheet 3 of 3
SIP - 4789HT - 03 - 1001 F B
Optional Ratio Tolerance to R1
F=±1.0%; D=±0.5%; C=±0.25%;
B = ±0.1%; A = ±0.05%
Absolute Tolerance
Standard MIL tolerance code
J = ±5%; G = ±2%; F=±1.0%; D=±0.5%; C = ±0.25%; B = ±0.1%
Resistance
Standard MIL resistance code.
Example: 1001 = 1000 Ω; 50R0 = 50Ω
Absolute TCR
01 = ±100ppm/°C; 02 = ±50ppm/°C; 03 = ±25ppm/°C
