View source for 5CT1N

{{Plugin Sidebar 
|manufacturer=Tektronix 
|series=5000-series scopes
|type=5CT1N 
|summary=Curve tracer plug-in 
|image=5ct1n-crop.jpg 
|caption=5CT1N curve tracer 
|introduced=1972 
|discontinued=1988 
|designers=Matt Zimmerman
|manuals=
* [[Media:070-1246-00.pdf|Tektronix 5CT1N Manual]]
* [[Media:062-1009-00.pdf|Semiconductor Device Measurements]] (''Concepts'' series)
}}
The '''Tektronix 5CT1N''' is a curve tracer plug-in for the 5000 series oscilloscopes, similar to the [[7CT1N]] for [[7000-series scopes]].
The 5CT1N was designed by [[Matt Zimmerman]].

{{BeginSpecs}}
{{Spec | DUT drive voltage (C-E) | 
* positive (NPN or N channel) or negative (PNP or P channel) half-waves
* 7.5 V, 0.5 V/Div, 240 mA peak
* 30 V, 2 V/Div, 60 mA peak
* 75 V, 5 V/Div, 24 mA peak
* 300 V, 20 V/Div, 6 mA peak
* HV warning light on for > 50 V
* peak power 500 mW}}
{{Spec | DUT current display  | 
* 10 μA/Div to 20 mA/Div, 1−2−5 steps (x 1 mode)
* 10 nA/Div to 20 μA/Div, 1−2−5 steps (x 1000 mode)}} 
{{Spec | Base/Gate drive | 
* 0 to at least 10 steps
* dual polarity
* variable offset, at least +/− 5 steps
* current mode: 1 μA/Step to 1 mA/Step in 1−2−5 sequence
* voltage mode: 1 mV/Div to 1 V/Div in 1−2−5 sequence, 1 kΩ current limit
}}
{{Spec | DUT connection | Three 4 mm jacks / binding posts}}
{{Spec | DUT adapters | 
* [[013-0072-00]] Axial diodes
* [[013-0069-00]] Devices with long leads
* [[013-0070-01]] Transistors in TO-3 or TO-66 cases 
* [[013-0074-00]] Transistors with stud leads
* [[013-0110-00]] Diodes with stud leads
* [[013-0112-00]] Transistors in TO-36 cases
* [[013-0128-00]] Transistors in TO-5 or TO-18
}}
{{EndSpecs}}

==Links==
* [[Matt Zimmerman]], ''Oscilloscope to Curve Tracer with one Plug-in.'' [[Media:Tekscope_1972_V4_N6_Nov_1972.pdf|Tekscope Vol. 4 No. 6, Nov 1972]], p.7
* [http://www.ke5fx.com/A_VTCT_Adapter_for_All_Tektronix_SCTs_W7PF.pdf Dennis Tillman: An Inexpensive Vacuum Tube Curve Tracer Adapter for All Tektronix Semiconductor Curve Tracers]

==Pictures==
<gallery>
5440.jpg | 5CT1N in [[5440]] mainframe vertical bay, X output connected to time base X input
Tek-5ct1_in_use.jpg| Displaying transistor curves
Tek 5ct1n f1.JPG
Tek 5ct1n front2.jpg
5CT1N 7CT1N Basic Measurement Reference Chart.jpg
</gallery>

==Common Problems==

C30 and C32 (100 μF, 25 V) [http://hakanh.com/dl/docs/hardtofind/CT1N.pdf are under-rated] and therefore have a tendency to leak or short, 
causing associated resistors R30 and R32 (240 Ω, 0.25 W, 5%) to overheat and fail. 
C30 and C32 should be replaced with modern equivalents rated above 35 V. 


[[Category:Curve tracers]]
[[Category:5000 series plugins]]