E-Series RF 8:1 Transformer
0.09 - 140 MHz ET8-1T
M/A-COM, Inc.
North America: Tel. (800) 366-2266 ■Asia/Pacific: Tel. +81 (03) 3226-1671 ■Europe: Tel. +44 (1344) 869 595
Fax (800) 618-8883 Fax +81 (03) 3226-1451 Fax +44 (1344) 300 020
1
Specifications Subject to Change Without Notice.
V3.00
Features
8:1 Impedance Ratio
CT on Secondary
Specifications @ 25°C
Frequency Range 0.09 - 140 MHz
Insertion Loss Maximum
0.09 - 140 MHz 3 dB
0.15 - 140 MHz 2 dB
0.3 - 60 MHz 1 dB
Amplitude Imbalance Maximum
0.09 - 40 MHz 0.2 dB
0.09 - 140 MHz 1 dB
Phase Imbalance Maximum
0.09 - 20 MHz 2°
0.09 - 140 MHz 10°
Schematic
Ordering Information
Part No. Packaging
ET8-1T-SM-1 SM-1 in Tubes
ET8-1T-SM-1TR SM-1 in Tape & Reel
ET8-1T-SM-5 SM-5 in Tubes
ET8-1T-SM-20 SM-20 in Tubes
ET8-1T-SM-20TR SM-20 in Tape & Reel
ET8-1T-SM-21 SM-21 in Tubes
Absolute Maximum Ratings
SM-1
Pin Configuration
Function Pin No.
Primary dot 4
Primary 6
Secondary dot 3
Secondary 1
Secondary CT 2
Not Connected 5
●
●
S 0198 D
Dimensions in ( ) are in mm.
Unless Otherwise Noted: .x = ±0.04 (1.00)
.xx = ±0.02 (0.50)
.xxx = ±0.010 (0.250)
Parameter Absolute Maximum
RF Power 250 mW
DC Current 30 mA
Operating/Storage Temp. -20°C to +85°C
PRI SEC
E-Series RF 8:1 Transformer, 0.09 - 140 MHz ET8-1T
V3.00
M/A-COM, Inc.
North America: Tel. (800) 366-2266 ■Asia/Pacific: Tel. +81 (03) 3226-1671 ■Europe: Tel. +44 (1344) 869 595
Fax (800) 618-8883 Fax +81 (03) 3226-1451 Fax +44 (1344) 300 020
2Specifications Subject to Change Without Notice.
SM-5
SM-20
Dimensions in ( ) are in mm.
Unless Otherwise Noted: .x = ±0.04 (1.00)
.xx = ±0.02 (.x = ±0.5)
.xxx = ±0.010 (.xx = ±0.25)
Note: Pin numbers do not appear on the unit.
For reference only. Index mark indicates pin 6.
SM-21
Dimensions in ( ) are in mm.
Unless Otherwise Noted: .x = ±0.04 (1.00)
.xx = ±0.02 (.x = ±0.5)
.xxx = ±0.010 (.xx = ±0.25)
Note: Pin numbers do not appear on the unit.
For reference only. Index mark indicates pin 6.
