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Sorensen  XT Series (4260W)
Linear Programmable DC power in a quarterrack package
Product Overview
The Sorensen XT provides 60 watts of programmable linear DC power in a quarterrack package. With seven models to choose from, XT is the smart choice for both benchtop and system applications where up to 60 watts of programmable, clean DC power is required. XT is also ideal for OEM applications where a wide adjustment of output voltage or current is required for up to 60 watts in a compact package.
The Sorensen XT is a preferred source for system development and test. It is available in singles, duals, triples and quads in a single package for benchtop use. For systems applications, multiple units can also be rack mounted in one to four unit configurations for up to four independent 60–watt outputs. XT can also be combined in a rack with the 300–watt HPD or 500–watt XPD.
Key Features
 Very low noise and ripple
 Excellent line/load regulation
 Fast transient response
 Constant voltage or constant current mode
 LabWindows® drivers
 CE, CSA approvals
Specifications
Output : Voltage and Current 

Model 
Output Voltage 
Output Current 
Output Power 
XT 76 
07 V 
06 A 
42 W 
XT 154 
015 V 
04 A 
60 W 
XT 203 
020 V 
03 A 
60 W 
XT 302 
030 V 
02 A 
60 W 
XT 601 
060 V 
01 A 
60 W 
XT 1200.5 
0120 V 
00.5 A 
60 W 
XT 2500.25 
0250 V 
00.25 A 
60 W 
Model 
Line Regulation² Voltage 
Line Regulation² Current 
Load Regulation³ Voltage 
Load Regulation³ Current 
XT 76 
2 mV 
6.25 mA 
2 mV 
6.25 mA 
XT 154 
2 mV 
4.25 mA 
2 mV 
4.25 mA 
XT 203 
2 mV 
3.25 mA 
2 mV 
3.25 mA 
XT 302 
2 mV 
2.25 mA 
2 mV 
2.25 mA 
XT 601 
2 mV 
1.25 mA 
2 mV 
1.25 mA 
XT 1200.5 
2 mV 
0.75 mA 
2 mV 
0.75 mA 
XT 2500.25 
3 mV 
0.50 mA 
3 mV 
0.50 mA 
Model 
Output Noise & Ripple
(20 Hz – 20 MHz) Voltage 
Output Noise & Ripple
(20 Hz – 20 MHz) Current 
Meter Accuracy Voltage
(1% of Vmax + 1 count) 
Meter Accuracy Current
(1% of Vmax + 1 count) 
XT 76 
< 1 mVrms 
< 1 mArms 
0.08 V 
0.07 A 
XT 154 
< 1 mVrms 
< 1 mArms 
0.25 V 
0.05 A 
XT 203 
< 1 mVrms 
< 1 mArms 
0.3 V 
0.04 A 
XT 302 
< 1 mVrms 
< 1 mArms 
0.4 V 
0.03 A 
XT 601 
< 1 mVrms 
< 1 mArms 
0.7 V 
0.02 A 
XT 1200.5 
< 1 mVrms 
< 1 mArms 
2.2 V 
0.006 A 
XT 2500.25 
< 1 mVrms 
< 1 mArms 
3.5 V 
0.003 A 
Model 
Drift (8 hours)[4]
Voltage (0.02% of Vmax) 
Drift (8 hours)[4]
Current (0.03% of Imax) 
Temperature Coefficient[5]
Voltage (0.015% of Vmax/°C) 
Temperature Coefficient[5]
Current (0.02% of Imax/°C) 
XT 76 
1.4 mV 
1.8 mA 
1.05 mV 
1.2 mA 
XT 154 
3 mV 
1.2 mA 
2.25 mV 
0.8 mA 
XT 203 
4 mV 
0.9 mA 
3 mV 
0.6 mA 
XT 302 
6 mV 
0.6 mA 
4.5 mV 
0.4 mA 
XT 601 
12 mV 
0.3 mA 
9 mV 
0.2 mA 
XT 1200.5 
24 mV 
0.15 mA 
18 mV 
0.1 mA 
XT 2500.25 
50 mV 
0.075 mA 
37.5 mV 
0.05 mA 



XT 60 W Internal Interface Specifications with RS232 or GPIB Interface Installed [1,6] 

Model 
Program Accuracy
Voltage (mV) 
Program Accuracy
Current (mA) 
Program Accuracy
OVP (mV) 
XT 76 
10 (±0.1%) 
110 (±0.15%) 
70 
XT 154 
20 (±0.1%) 
70 (±0.15%) 
150 
XT 203 
20 (±0.1%) 
50 (±0.15%) 
200 
XT 302 
30 (±0.15%) 
40 (±0.15%) 
300 
XT 601 
200 (±0.15%) 
26 (±0.2%) 
200 
XT 1200.5 
400 (±0.15%) 
13 (±0.2%) 
1200 
XT 2500.25 
800 (±0.15%) 
7 (±0.2%) 
2400 
Model 
Readback Accuracy Voltage (mV) 
Readback Accuracy Current (mA) 
XT 76 
10 (±0.15%) 
110 (±0.15%) 
XT 154 
10 (±0.15%) 
70 (±0.15%) 
XT 203 
10 (±0.15%) 
50 (±0.15%) 
XT 302 
15 (±0.15%) 
40 (±0.15%) 
XT 601 
35 (±0.15%) 
26 (±0.2%) 
XT 1200.5 
70 (±0.15%) 
13 (±0.2%) 
XT 2500.25 
140 (±0.15%) 
7 (±0.2%) 



Operational AC
Input Voltage 
Standard: 115 Vac ±10%. 5763 Hz; Optional: 110/220/230/240 Vac ±10%, 4763 Hz 
AC Input Current 
Single Unit: 1.2 A, Dual Unit: 2.4 A, Triple Unit: 3.6 A, Quad Unit: 4.8 A, at 115 Vac 



Voltage Mode Transient Response Time 
< 100 μs recovery to 0.05% band, ±50% load change in the range of 25% to 100%
of the rated load 
Front Panel Voltage and Current Control 
10turn voltage and 1turn current potentiometers (10turn current optional) 
Front Panel Voltage Control Resolution 
0.02% of maximum voltage 
AC Input Connector Type 
IEC 320 connector 
Approvals 
CSA certified to CSA C22.2 No. 107.1. Meets USA EMC standard FCC Part 15B Class A; meets Canadian EMC standard: ICES001, Class A (Models up to and including 120 V) 


Analog Programming (with optional APG interface installed) 

Remote On/Off
and Interlock 
2 to 25 Vdc high. < 0.8 Vdc low. Userselectable. 
Remote Analog Programming Option 
010 Vdc for 0100% or rated voltage or current ±0.1%, 010 kΩ for 0100% of
rated voltage or current ±0.1% 
Remote Monitoring 
010 Vdc for 0100% of rated voltage or current ±0.1% 
Over Voltage Protection
Trip Range 
3 V to full output +10% 
Tracking Accuracy 
±1% for series operation 



Operating Temperature 
0 to 30°C for full rated output. Above 30°C, derate output linearly to zero at 70°C 
Storage Temperature 
 55 to 85°C 
Humidity Range 
Up to 80% RH, noncondensing 



Dimensions 
Width: 4.2” (109.2 mm)
Height: 5.2” (134.7 mm)
Depth: 11.7” (297 mm) 
Weight 
Approximately 7.7 lb (3.5 kg) 
Specifications subject to change without notice. 








