Reliant EMC

Single Path LISN CISPR 25 / ISO 7637

Single Path LISN (Automotive) CISPR 25 / ISO 7637
· BNC Connector Overview
· N Connector Overview
· NNBM 8124
· NNBM 8124-200
· NNBM 8124-400
· NNBM 8124-800
· NNBM 8126 A
 
 
BNC Connector - This connector has many advantages: easy to disconnect and connect. You know when the connector locks it snaps. Like the N Type the BNC is hard to damage. The BNC comes in three flavors. Standard 50 Ohm, 75 Ohm and reverse polarity connector. It is a great Snap-On connector. The BNC’s are usually limited to DC to 4 GHz and it can snap off just as easy as it snaps on. If you are in a high vibration environment the BNC may not be suitable. High power High EMI issues the BNC is known to leak RF. The good ones will be –55dB to 3GHz the lesser ones can be as low as –25dB and even lower if a poorly shielded cable is attracted.
 
N Connector - The N-type is a thread on connector with a long neck. This provides excellent EMI protection. In many cases > –90 dB for RF leakage which is dependent on the manufacturer and cable type.
The N-type comes in 4 flavors. The standard 50 Ohm, the 75 ohm, the reverse polarity and the 18 GHz version.
Most basic models go to 11 GHz and most high frequency versions go to 18 GHz. The N Type is better in higher voltage 2500 Vrms at 50Hz for most N-Connector types vs. 500Vrms for the BNC-connector types.
 
The differences between the two connectors are the Vrms and the frequency response.

 

NNBM 8124

NNBM 8124

Automotive LISN acc. CISPR 25 and ISO 7637-2 and for BCI-Testing
· Impedance (5µH + 1 Ohm) || 50 Ohm
· Max. 70 (100) A
· With switchable 50 Ohm load and switchable 1 mikrofarad capacitor at mains side
· single path
· BNC female or N connector
 
There are two NNBM 8124 Models to choose from:
· NNBM 8124 BNC
· NNBM 8124 N
 
Option: CAP 10-100
"10 microfarad capacitor 500 V, 400 Hz, built into an adapter, which can be applied to the mains terminals of the LISN types NNBM 8126 A, NNBM 8124 or NNBM 8126 A 890 (all models up to 100A). To be compliant to the standards DEF STAN 59 and DO 160 a 10 µF capacitor like the CAP 10 has to be connected to the mains connectors of the LISN. "

Schwarzbeck NNBM 8124 Single Path Vehicle AMN LISN Data Sheet
 
NNBM 8124-200

Schwarzbeck NNBM 8124-200

Automotive LISN acc. CISPR 25 and ISO 7637-2 and for BCI-Testing
· Impedance (5µH + 1 Ohm) || 50 Ohm
· Max.200 A
· With switchable 50 Ohm load and switchable 1 mikrofarad capacitor at mains side
· single path
· BNC female or N connector
 
There are two NNBM 8124-200 Models to choose from:
· NNBM 8124-200 BNC
· NNBM 8124-200 N
 
Option: CAP 10-200
10 microfarad capacitor 500 V, 400 Hz, built into an adapter, which can be applied to the mains terminals of the LISN types NNBM 8126 D, NNBM 8124-200 (all models up to 200A).
 
Schwarzbeck NNBM 8124 200 Single Path Vehicle AMN LISN Data Sheet
 
NNBM 8124-400

Schwarzbeck/Schwarzbeck NNBM 8124-400 LISN_1

Schwarzbeck NNBM 8124-400 LISN_2

Automotive LISN acc. CISPR 25 and ISO 7637-2 and for BCI-Testing
· Impedance (5µH + 1 Ohm) || 50 Ohm
· Max. 400 A.
· With switchable 50 Ohm load and switchable 1 mikrofarad capacitor at mains side
· single path
· BNC female or N connector
 
There are two NNBM 8124-400 Models to choose from:
· NNBM 8124-400 BNC
· NNBM 8124-400 N
 
Schwarzbeck NNBM 8124 400 Single Path Vehicle AMN LISN Data Sheet

 

NNBM 8124-800

Schwarzbeck/Schwarzbeck NNBM 8124-800 LISN Front

Schwarzbeck NNBM 8124-400 LISN_2

Automotive LISN acc. CISPR 25 and ISO 7637-2 and for BCI-Testing
· Impedance (5µH + 1 Ohm) || 50 Ohm
· Max. 800 A.
· With switchable 50 Ohm load and switchable 1 mikrofarad capacitor at mains side
· single path
· BNC female or N connector
 
There are two NNBM 8124-800 Models to choose from:
· NNBM 8124-800 BNC
· NNBM 8124-800 N
 
Schwarzbeck NNBM 8124 800 Single Path Vehicle AMN LISN Data Sheet

 

NNBM 8126 A

Schwarzbeck NNBM 8126 A 890 -2

Schwarzbeck NNBM 8126 A 890 -2

· 890 LISN 5 µH || 50 Ohm 70 (100)
· single path
· Suitable for 600V DC and 270 V AC 890 Hz
· Calibrated up to 400 MHz according to DO-160
 
Schwarzbeck NNBM 8126 A 890 Single Path Airborne Equipment LISN Data Sheet

 
 
 
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