MICROWA VE TERMINATIONS
W AMT SERIES
W
WAMT Series offers special resistor patterning to enhance RF performance. Half-Wrap or Full-Wrap
Terminations offer maximum flexibility in microwave applications. These resistors are constructed using our
proven proprietary thin film processes.
DAT
MECHANICAL DATA
T
L
Full Wrap Around
W
T
SERIES
WAMT - 1
WAMT - 2
WAMT - 3
WAMT - 4
WAMT - 5
WAMT - 6
WAMT - 7
WAMT - 8
WAMT - 21
SUBSTRATE
SUBSTRATE
RESISTOR
PADS
BOND PADS
AND WRAPAROUND
WRAPAROUND
TERMINATIONS
TERMINATIONS
L
W
T
0.040" x 0.020" x 0.010"
0.035" x 0.035" x 0.010"
0.075" x 0.050" x 0.010"
0.050" x 0.050" x 0.010"
0.126" x 0.063" x 0.010"
0.100" x 0.050" x 0.010"
0.020" x 0.020" x 0.010"
0.055" x 0.025" x 0.010"
0.020" x 0.010" x 0.010"
99.6% ALUMINA, ALUMINUM NITRIDE
TANT
ANTALUM
NICHROME OR TANTALUM NITRIDE
TOLERANCE
(±0.003")
(±0.003")
(±0.003")
(±0.003")
(±0.003")
(±0.003")
(±0.003")
(±0.003")
(±0.003")
GOLD WITH NICKEL BARRIER STANDARD.
STANDARD.
TERMINATION
OPTIONAL WITH SOLDER; OR HALF-WRAP TERMINATION
OHMIC VALUE
KΩ
6
Ω −
1 K
Ω
25Ω
KΩ
25
Ω −
1 K
Ω
25Ω
KΩ
25
Ω −
1 K
Ω
25Ω
KΩ
25
Ω −
1 K
Ω
25Ω
KΩ
25
Ω −
1 K
Ω
25Ω
KΩ
25
Ω −
1 K
Ω
25Ω
KΩ
25
Ω −
1 K
Ω
25Ω
KΩ
25
Ω −
1 K
Ω
400Ω
2
Ω −
400
Ω
RATING
POWER RATING @ 70°C
125mW
250mW
250mW
250mW
500mW
250mW
125mW
250mW
50mW
L
DAT
ELECTRICAL DATA
SERIES
WAMT - 1
WAMT - 2
WAMT - 3
WAMT - 4
WAMT - 5
WAMT - 6
WAMT - 7
WAMT - 8
WAMT - 21
ABSOLUTE TOLERANCE
T.C.R.
Half-Wrap
MICROWAVE
& RF
RESISTORS
1%, 2%, 5%, 10%
STANDARD
±25ppm/°C STANDARD (NiCr)
STANDARD (TaN);
±50ppm/° AV
±150ppm/°C STANDARD (TaN); TO ±50ppm/
°
C AVAILABLE
CONSULT
VALUES
CONSULT SALES FOR OTHER VALUES
101Ω
250KΩ
100Ω
250KΩ
101
Ω
TO 250K
Ω
: -40dB;
≤
100
Ω
,
≥
250K
Ω
: -30dB
12
10
Ω
MIN.
100 V MAX.
RATED
25°
±0.
0.2
5X RATED POWER, 25°C, 5 SEC., ±0.25% MAX.
∆
R/R: ±0.1% MSI TYPICAL
0.03
03%
±0.25%
150°C, 100 HRS., ±0.25% MAX.
∆
R/R: ±0.03% MSI TYPICAL
107F, ±0.25%
MIL-STD 202, METHOD 107F, ±0.25% MAX.
∆
R/R: ±0.1% MSI TYPICAL
±0.
0.5
0.1
MIL-STD 202, METHOD 106, ±0.5 % MAX.
∆
R/R: ±0.1 % MSI TYPICAL
70°C,
POWER, ±0.5%
1000 HRS., 70°C, 100% POWER, ±0.5% MAX.
∆
R/R: ±0.1% MSI TYPICAL
-55
-55°C TO +150°C
DC THROUGH 20 GHz
DAT
SERIES DATA
CURRENT NOISE
INSULATION RESISTANCE
INSULATION RESISTANCE
OPERATING VOLT
OPERATING VOLTAGE
SHORT TERM OVERLOAD
HIGH TEMP EXPOSURE
THERMAL SHOCK
RESISTANCE
MOISTURE RESISTANCE
STABILITY
STABILITY
OPERATING
OPERATING TEMP RANGE
FREQUENCY
STRAY
STRAY DISTRIBUTED
CAPACIT
ACITANCE
CAPACITANCE
ALUMINA
0.06pF
DESIGNATION
PART NUMBER DESIGNATION
WAMTX
SERIES
1, 2
3, 4
5, 6
7, 8
21
X
SUBSTRATE
SUBSTRATE
A = Alumina
N = Aluminum
Nitride
X
RESISTIVE FILM
N = Nichrome
T = Tantalum
Nitride
XXXXX
OHMIC VALUE
5-Digit Number:
1st 4 Digits Are
Significant With
"R" As Decimal
Point When
Required.
5th Digit
Represents
Number of Zeros.
X
TOLERANCE
F
G
J
K
= 1%
= 2%
= 5%
= 10%
A
F
HWU
T
T3
TR
U
HWT
HWT3
X
OPTION
= ±50ppm/°C
= ±100ppm/°C
= Half-Wrap
Untinned
= With SN62 Solder **
= Leadfree Solder
= Tape and Reel ***
= Untinned*
= Half-Wrap
Tinned.
= Half-Wrap
Leadfree
Tinned
MINI-SYSTEMS, INC.
THIN FILM DIVISION
DAVID
ATTLEBORO,
20 DAVID ROAD, N. ATTLEBORO, MA 02760
508-695-0203 FAX: 508-695-6076
DCN TF 119-D-0306
Consult Sales for power capabilities
on Aluminum Nitride.
* For Conductive Epoxy Mount.
** For Solder Mount.
*** Consult Sales for Availability.
AT
EXAMPLE: WAMT1 AT-50R00F-T = 0.040" x 0.020" x 0.010", Alumina Substrate,
50Ω
Tol.,
Solder.
Wrap
50
Ω
, ±1% Tol., ±150ppm/°C, w/ Solder. Full Wrap Around.
Solder option applies to all Conductor Surfaces
