Burst generator SFT 1420 2MHz

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Model: SFT 1420
Manufacturer: Schlöder
Status: Stocking
Guarantee: 12 months
Price: Contact

The Burst SFT 1420 2MHz generator simulates transient transient disturbances according to IEC 61000-4-4 and EN 61000-4-4 standards. These disturbances are generated by the switching inductor. The individual pulses have very short rise times in the nanosecond range and thus a wideband RF spectrum up to 300 MHz, which can cause RF interference. By increasing the pulse in the burst packet, time-critical applications can be tested alongside the very precise triggering of the SFT 1420. The Burst generator also offers a range of special functions such as ” Real Burst”, which simulates the natural occurrence of an explosive pulse or “Noise”, where contact bouncing can be simulated. The “IFM” and “DFM” (frequency rise or fall) functions are important tools for checking resonance or saturation effects in the equipment under test.

  • Boom frequency up to 2000 kHz
  • RS 232 interface
  • Single pulse to explode forever
  • Various special functions.


I. Specification of Burst generator SFT 1420 2MHz

Burst generator SFT 1420 2MHz


  • The SFT 1420 noise generator simulates transient transient disturbances as defined by the IEC/EN 61000-4-4 standards. Due to the very short rise time (5ns), the individual pulses produce a wideband RF spectrum up to approximately 300 MHz RF interference results are results.
  • Function:
    • All burst parameters can be changed during cluster testing. This ensures that the noise threshold of the test equipment can be determined easily and continuously. It is not necessary to interrupt the test to change the parameter on the cluster generator.
  • Pulse explosion in reality:
    • Actual pulse occurs Explosive pulse that occurs in practice does not conform to the definition of the standard. Its physical properties differ from standard definitions. The Schlöder SFT 1420 2MHz Burst Generator offers the user a range of special functions such as “Real Burst”, which simulates the natural occurrence of an explosive pulse, or “Noise”, which can simulate contact bounce. The “IFM” and “DFM” functions (increase or decrease the frequency in an explosive package) are important tools for checking resonance or saturation effects in the equipment under test..
  • High energy pulse generator with 2 MHz:
    • Due to the high maximum pulse frequency of 2MHz, Schlöder’s Burst generator SFT 1420 2MHz can execute up to 2000 individual pulses in a single package. The SFT 1420 is the only transmitter worldwide with this high burst frequency and allows for very high energy testing – e.g. drive control.

II. Definition of beam


Stop. Norm Definition Variable setting on the SFT 1420
Burst duration a 15 ms ± 20% at 5 kHz

0.75 ms ± 20% at 100 kHz

(Corresponds to 75 pulses each)

0,01 – 100 ms *1

Burst Period

b 300 ms ± 20 % 10 – 1000 ms *1
Burst Frequency c 5 kHz or 100 kHz to 4 kV

100 Hz – 2000 kHz to 4.8 kV

Pulse Amplitude

U 0,5 / 1 / 2 / 4 kV 100 V – 4800 V (in 10 V steps)
Rise time tr 5 ns ± 30 %

* 1: the SFT 1420 automatically takes the limit parameters into account.


Pulse duration (50 Ohm)

Pulse duration (1 kOhm)

tw 50 ns ± 30 %

50 ns, -15ns/+100 ns

Impedance Z

50 Ω ± 2 %

sft-1420-2mhz-Schlöder Burst generator SFT 1420 2MHz

[1] Additional grounding socket.

[2] Laboratory socket for specimen connection.

[3] Schuko socket for connecting the device under test.

[4] Polarity of explosive pack.

[5] High voltage trigger.

[6] External or manual release.

[7] High voltage discharge.

[8] Select key for stage.

[9] Selection button for test time.

[10] Digital potentiometer.

[11] Selection key for special functions.

[12] Socket for interface cable.

[13] Selection key for PC remote control.

[14] Selection key for memory function.

[15] Selection key for packet duration.

[16] Selection key for burst frequency.

[17] Show “Surge Active”.

[18] Display for memory function.

[19] Display for pulse voltage.

[20] Selection key for coupling path.

[21] Phase display.

[22] External network control.

[23] High voltage output for connecting a 3 phase coupler or network connection.

***See more of Gmga’s surge detectors and EMC measurement systems at: https://gmga.vn/en/danh-muc/maintenance-equipment/surge-generators-and-emc-measuring-systems/

III. Specifications of Burst generator SFT 1420 2MHz

Technical specifications

Burst frequency

Single peak up to 2 MHz
Pulse voltage

100 V – 4800 V

Polarity burst package

pos., neg., alternating
Pulse shape

according to IEC 61000-4-4

Max. Pulses / sec

Max. Pulses / package


Monitoring output

BNC female

Coupling network

Integrated in the generator, coupling of the test pulses to the supply lines of the device under test.

Nominal voltage AC

Max. 230V / 16A, 50 Hz

Nominal voltage DC

Max. 110V / 8A
Phase display

LED red / green

Coupling capacity

33 nF
Coupling switch

L, N, PE -> E; L, N-> E; Etc.

DUT connection:

Schuko socket

additional laboratory sockets

High voltage output



Operating temperatur

0 – 40 ° C

19 ″ housing, 3 U


12,5 kg
Supply voltage

100-240V / 47-63Hz


3-phase Coupling network 4 x 16 A.

CWG 520
3-phase Coupling network 4 x 32 A.

CWG 523

3-phase Coupling network 4 x 60 A.

CWG 524
Divider 100: 1/50 ohm: SFT 450

SFT 450

Probe set, magnetic field

SFT 470
Control software for burst etc.


Capacitive coupling pliers

SFT 415
HV cable for coupling pliers 1m

SFT 430

Calibration set coupling pliers

SFT 415-CS
50 + 1000 Ω attenuators

SFT 450 set necessary to verify the

Burst on the generator or



***Videos of surge generators and EMC measurement systems are available at: Gmga Measuring Youtube.


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