The N-type series RF coaxial connector is a RF coaxial connector with a threaded connection mechanism developed and produced in accordance with the US military standard MIL-C-39012. It has the characteristics of wide bandwidth, good shock resistance, high reliability, and excellent performance, and is widely used in microwave communications and measurement systems. The characteristic impedance of the N-type series RF coaxial connector produced by our factory is divided into two types: 50Ω and 75Ω.
Main Technical Specifications:
◆ Characteristic Impedance: 50Ω/75Ω
◆ Frequency Range: DC-18GHz(50Ω)/DC-3GHz(75Ω)
◆ Insulation Resistance: ≥5000MΩ
◆ Dielectric Withstand Voltage: 1500V(rms)
◆ Voltage Standing Wave Ratio (VSWR): ≤1.30
◆ Mating Cycles: 500 times

| Dim Ltr |
Inches (mm) | |
| Min. | Max. | |
| A | .336 (8.53) | .344 (8.74) |
| B | .316 (8.03) | .320 (8.13) |
| C | .356 (9.04) | .362 (9.19) |
| D | .187 (4.75) | .207 (5.26) |
| E | ------- | .627 (15.93) |
| F | .119 (3.02) | .124 (3.15) |
| G | .422 (10.72) | ------- |
| H | .172 (4.37) | .220 (5.59) |
| J | .047 (1.19) | .077 (1.96) |
| K | .047 (1.19) | .077 (1.96) |
| L | .187 (4.75) | .207 (5.26) |
| N | .210 (5.33) | ------- |
Notes:
1. This interface shall meet the gauge requirements as specified in
MIL-PRF-39o12/2.
2. Clearance for mating connector coupling nut.
3. To meet VSwR, mating characteristics, contact resistance and
connector durability when mated with a.063/.066 diameter pin.

| Dim Ltr |
Inches (mm) | |
| Min. | Max. | |
| A | 1.740 (44.20) | 1.760 (44.70) |
| B | 1.537 (39.04) | 1.543 (39.19) |
| C | 1.060 (26.92) | 1.064 (27.03) |
| D | .964 (24.49) | .974 (24.74) |
| E | .194 (4.93) | .196 (4.98) |
| F | .836 (21.23) | .856 (21.74) |
| G | .372 (9.45) | .392 (9.96) |
| H | .271 (6.88) | .291 (7.39) |
| J | 551 (14.00) | .571 (14.50) |
| K | .370 (9.40) | .380 (9.65) |
| L | .001 (0.03) | .013 (0.33) |
Notes:
1. This interface shall meet the gauge requirements as specified in MIL-PRF-39012/44.

| Dim Ltr |
Inches (mm) | |
| Min. | Max. | |
| A | 1.404 (35.66) | 1.408 (35.76) |
| B | 1.100 (27.94) | 1.120 (28.45) |
| C | 1.998 (50.75) | 1.002 (25.45) |
| D | 936 (23.77) | .940 (23.88) |
| E | .191 (4.85) | .195 (4.95) |
| F | .763 (19.38) | .783 (19.89) |
| G | .465 (11.81) | .485 (12.32) |
| H | .062 (1.57) Reference | |
| J | .302 (7.67) | .322 (8.18) |
| K | .302 (7.67) | .322 (8.18) |
| L | .001 (0.03) | .013 (0.33) |
| M | .490 (12.45) | .510 (12.95) |
| N | .240 (6.10) | ,260 (6.60) |
| P | .187 (4.75) | .189 (4.80) |
| R | .014 (0.36) | .018 (0.46) |
Notes:
1. This interface shall meet the gauge requirements as specified in MIL-PRF-39012/45.
| Model | Cable type | d |
| N-JB2 | SFT-50-2,670-086 | Φ2.2 |
| N-JB3 | SFT-50-3,670-141 | Ф3.6 |
| Model | Cable type | L |
| N-JB3-1 | SFT-50-3,670-141 | 17.6 |
| N-JB3A-1 | SFT-50-3,670-141 | 16.5 |
| Model | Cable type |
| N-KB3 | SFT-50-3,670-141 |
| Model | Cable type |
| N-KFB3 | SFT-50-3,670-141 |
| Model | Cable type |
| N-KYB3 | SFT-50-3,670-141 |
| Model | Cable type |
| N-J3 | SYV-50-2-1,RG316 |
| N-J4 | SYV-50-2-2 |
| Model | Cable type | L |
| N-J5 | SYV-50-3,RG142, SFCJ-50-3-51 | 33 |
| N-J5C | SYV-50-3,RG142, SFCJ-50-3-51 | 33 |
| N-J7 | SYV-50-5-1, SFCJ-50-5-51 | 36 |
| N-J10 | SYV-50-7-1, SYV-50-7-2,SFCJ-50-7-51 | 36 |
| Model | Cable type |
| N-J5.3 | 32055,205,GNB415 |
| Model | Cable type |
| N-J311 | FFB311A |
| Model | Cable type |
| N-J10-1 | SFCJ-50-7-51 |
| Model | Cable type |
| N-JW5 | SFCJ-50-3-51,SYV-50-3-4,RG142 |
| N-JW7 | SFCJ-50-5-51,SYV-50-5-1 |
| N-JW10 | SFCJ-50-7-51,SYV-50-7-2 |
| Model | Cable type |
| N-JW8A | FFB311A,SYV-50-5 |
| N-JW12A | SYV-75-3 |
| N-JW13A | SYV-75-5 |
| Model | Cable type |
| N-K3 | SYV-50-2-1,RG316 |
| Model | Cable type | L |
| N-K5 | SYV-50-3,RG142, SFCJ-50-3-51 | 36 |
| N-K7 | SYV-50-5-1,SFCJ-50-5-51 | 38 |
| N-K10 | SYV-50-7-1,SFCJ-50-7-51 | 38 |
| Model | Cable type | L |
| N-KF5 | SYV-50-3,RG142,SFCJ-50-3-51 | 36 |
| N-KF7 | SYV-50-5-1,SFCJ-50-5-51 | 38 |
| N-KF10 | SYV-50-7-1,SFCJ-50-7-51 | 38 |
| Model | Cable type | L |
| N-KF3A | SYV-50-2-1,RG316 | 33 |
| N-KF5A | SYV-50-3-4,RG142 | 42 |
| Model | Cable type |
| N-KY3Y | SYV-50-2-1,RG316 |
| Model | L | L1 | L2 |
| KFD | 26 | 4 | 2 |
| KFD2 | 31 | 6 | 5 |
| KFD15 | 30 | 6 | 4 |
| KFD16 | 28.5 | 6 | 2.5 |
| KFD17 | 28 | 6 | 2 |
| KFD18 | 29 | 5 | 4 |
| KFD19 | 29 | 4 | 5 |
| KFD20 | 33 | 4 | 9 |
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