Isolator-Circulator Numbering Page 1

Model Numbering for Coaxial / Drop-in Isolator & Circulator

The model numbering system is built to ensure that each model number represents a unique device. Two devices with different specifications (although having the same frequency range) do not use the same model number to prevent misunderstanding in manufacturing processes. The model number shall be meaningful to enable sales , production and QA people to recognize the device when seeing model number. It is part of our QA system. The system should be easy to understand so our customers and representatives can specify the model numbers for their requirements to some extent. However, there are varieties of configurations and specifications for non-standard isolator and circulator. To prevent mistakes, we recommend customers/representatives to contact us with full requirements and we will issue model number for you. Please see flowchart for more details of how a new model number and drawing are issued for a device.

Example Models :

C - F 370.420 - A 1 - (F1F1F1) (Opt.01)

DI1 - H 710.780 - A 1 - (T9T9L1d)

Product Type

Band Designation
(Center Frequency)

Frequency
Range (GHz)

Specify Input Port / Number of Ports / Configuration

Signal Rotation

Specify Connector Type/Gender or Power Rating for Load , in sequence of Port 1/2/3/4(if 4 ports)

Option Number

For Coaxial

C=Circulator

I=Isolator

For Drop-in

DCX=Circulator type X

DIX=Isolator type X

See details of drop-in type and package

DC - 250

250 - 500

0.5 - 1

1 - 2

2 - 3

3 - 4

4 - 6

6 - 8

8 - 10

10 - 20

20 - 40

MHz

GHz

Start.Stop

A, B or C = 3 port

H, I, J or K = 4 port
(H - resembled)

P, Q, R or S = 4 port
(Pi - resembled)

See drawing below
for further understanding

1 = CW

2 = CCW

For Connector

M = Male
F = Female

Example :
F1 = SMA-Female
M1 = SMA-Male
F3 = N-Female
(0.687"flange)
M3 = N-Male
(0.687"flange)
T9 = Tab
(0.635W, 1.8L, 0.127T)

For Termination

L1a = 1 W (Coax.)
L10a = 10 W (Coax.)
L15 = 15 W (Coax.)
...
L1b = Built-in 1 W
L10b = Built-in 10 W
...
L1c = 1 W, open body
L10c = 10 W, open body
L1d = 1 W, Cylindrical Housing, Dia.5.3 x 5.3 mm. max
...

For Connector only

1 = SMA

2 = N (0.5" flange)

3 = N (0.687" flange)

4 = N (1.0" flange)

5 = TNC

6 = BNC

7 = SMB

8 = Pin (0.5mm. Dia.)

9 = Tab
(0.635W, 1.8L, 0.127T mm.)

Indicates non-standard specifications Must refer to drawing for full specifications

Example Model : C-F370.420-A1-(F1F1F1) (Opt.01) indicates a circulator covering 3.7-4.2 GHz (3.95 GHz center frequency / F-band) , 3 ports , clockwise rotation (see drawing A1 below for configuration and connector gender) , SMA female connectors for all ports , must see drawing for other specifications.

Example Model : I-J80.124-A1-(F1M1L1a) indicates an isolator covering 8.0-12.4 GHz (10.2 GHz center frequency / J-band) , 2 ports (1 port terminated with 1 watt load), clockwise rotation (see drawing A1 below for configuration and connector gender) , SMA female input & SMA male output connectors with 1 watt termination, other specifications are as per catalog (see page 7 - item 125 in 2002/2003 catalog or request for detailed drawing from us).

Example Model : DI1-H710.780-A1-(T9T9L10d) indicates a drop-in isolator type 1, covering 7.1-7.8 GHz (7.45 GHz center frequency / H-band) , 2 ports (1 port terminated with 10 watts load) , clockwise rotation (see drawing A1 below for configuration) , tab (0.635W x 1.8L x 0.127T mm.) for input and output ports with 10 watts termination (cylindrical housing dia.5.3mm. x 5.3mm. long) , other specifications are as per catalog (see page 9 - item 31 in 2002/2003 catalog or request for detailed drawing from us).

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Aerocomm Company (Established 1994)
Registered No. (1) 1789/2537 Registered Capital 5,000,000 Baht

89 & 89/1 Intamara 41 , Sutthisan Road , Dindang , Bangkok 10400 THAILAND
Tel : 662 693 8300 Fax : 662 693 8304 Email : aerocomm@aerocommthailand.com