Compact and Bel Fuse MD801-009-07M6-4SB connector designed to prevent cross mating in demanding applications
Bel Cinch MD801 Series Connectors
Product Overview
The Bel Cinch MD801 Series connectors are designed for demanding military and aerospace applications, offering high reliability and performance in extreme environments. Featuring a Dual-Start ACME thread, these connectors prevent cross-mating and resist vibration. Available in various shell sizes and insert arrangements, they support crimp, solder, and PC tail terminations, making them suitable for board-mount applications. The series provides robust solutions for critical components where leakage prevention is essential, even under severe temperature, pressure, and humidity changes.
Product Attributes
- Brand: Bel Cinch
- Product Line: MD801 Series
- Key Markets: Military, Aerospace, Down-hole applications
- Features: Dual-Start ACME thread, Hermetic sealing (available), Miniature MIL-DTL-38999 equivalent
- Shell Material Options: Aluminum, Stainless Steel
- Plating Options: Cadmium with olive drab chromate, Black hard anodize (RoHS), Black Zinc Nickel over Electroless Nickel (RoHS), Nickel PTFE, Electroless Nickel (RoHS), Passivated Stainless Steel (RoHS)
Technical Specifications
General Specifications
| Specification | Value |
|---|---|
| Current Rating (#23 Contacts) | 5 A |
| Dielectric Withstanding Voltage (#23 Contacts) | 750 VAC |
| Insulation Resistance | 5000 M minimum |
| Operating Temperature | -65 C to +175 C |
| Shock Resistance | 300 g |
| Vibration Resistance | 37 g |
| Shielding Effectiveness | 55 dB min from 100MHz 1000MHz |
| Durability | 2000 mating cycles |
| IP Rating (Mated) | IP67 |
| Contact Sizes Supported | #23, #20, #16, #12 |
Available Shell Sizes
- 5, 6, 7, 8, 9, 10, 13
Contact Arrangements
- Range from 1 to 130 contacts
Connector Types
- Plugs (with banding platform or rear accessory thread)
- Receptacles (Inline, Square Flange, Jam Nut)
- Receptacles with PC Tail or Solder Cups
Plug Ordering Information Example
MD801- [Series] - [Shell Style] - [Shell Material/Finish] - [Shell Size/Insert Arrangement] - [Shell Keying] - [Contact Type]
Receptacle Ordering Information Example
MD801- [Series] - [Shell Style] - [Shell Material/Finish] - [Shell Size/Insert Arrangement] - [Shell Keying] - [Contact Type]
Dimensions (Example: Plugs)
| Shell Size | A (in/mm) | B (in/mm) | Thread | D (in/mm) | Thread |
|---|---|---|---|---|---|
| 5 | 0.54 (13.72) | 0.65 (16.51) | 0.3125-0.05P-0.1L-DS-2B | 0.245 (6.22) | 0.2500-32 UNEF-2A |
| 6 | 0.60 (15.24) | 0.69 (17.53) | 0.3750-0.05P-0.1L-DS-2B | 0.290 (7.37) | 0.3125-32 UNEF-2A |
| 13 | 1.05 (26.67) | 1.10 (27.94) | 0.81250-.1P-0.2L-DS-2B | 0.650 (16.51) | 0.6875-24 UNEF-2A |
Dimensions (Example: In-Line Receptacles)
| Shell Size | A (in/mm) | B (in/mm) | Thread | D (in/mm) | E (in/mm) | Flat Thread |
|---|---|---|---|---|---|---|
| 5 | 0.355 (9.02) | 0.325 (8.25) | 0.3125-0.05P-0.1L-DS-2B | 0.245 (6.22) | 0.2500-32 UNEF-2A | |
| 13 | 0.855 (21.72) | 0.825 (20.96) | 0.81250-.1P-0.2L-DS-2B | 0.650 (16.51) | 0.6875-24 UNEF-2A |
Dimensions (Example: Square Flange Receptacles)
| Shell Size | A (in/mm) | B (in/mm) | C (in/mm) | D (in/mm) | E (in/mm) | SQ BSC (in/mm) | Thread | Thread |
|---|---|---|---|---|---|---|---|---|
| 5 | 0.530 (13.46) | 0.363 (9.22) | 0.680 (17.27) | 0.096 (2.44) | 0.091 (2.31) | 0.3125-0.05P-0.1L-DS-2A | 0.245 (6.22) | 0.2500-32 UNEF-2A |
| 13 | 1.030 (26.16) | 0.812 (20.62) | 1.375 (34.92) | 0.130 (3.30) | 0.126 (3.20) | 0.8125-0.1P-0.2L-DS-2A | 0.650 (16.51) | 0.6875-24 UNEF-2A |
Panel Cutout (Example: Square Flange Receptacles)
| Shell Size | A (in/mm) | B (in/mm) | C (in/mm) | 0.005 (0.13) | BSC |
|---|---|---|---|---|---|
| 5 | 0.328 (8.33) | 0.328 (8.33) | 0.096 (2.44) | 0.091 (2.31) | |
| 13 | 0.828 (21.03) | 0.328 (8.33) | 0.130 (3.30) | 0.126 (3.20) |
Dimensions (Example: Jam Nut Receptacles)
| Shell Size | A (in/mm) | B (in/mm) | C (in/mm) | D (in/mm) | E (in/mm) | F (in/mm) | G (in/mm) | Flat Thread | Thread | Thread |
|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 0.54 (13.72) | 0.65 (16.51) | 0.545 (13.84) | 0.3125-0.05P-0.1L-DS-2B | 0.375-28 UNEF-2A | 0.245 (6.22) | 0.250-32 UNEF-2A | |||
| 13 | 1.078 (27.38) | 1.10 (27.94) | 1.044 (26.52) | 0.81250-.1P-0.2L-DS-2B | 0.875-28 UNEF-2A | 0.650 (16.51) | 0.6875-24 UNEF-2A |
Panel Cutout (Example: Jam Nut Receptacles)
| Shell Size | A (in/mm) | Flat | C (in/mm) | 0.002 (0.05) | 0.002 (0.13) | 0.000 (0.00) |
|---|---|---|---|---|---|---|
| 5 | 0.356 (9.04) | 0.380 (9.65) | ||||
| 13 | 0.851 (21.62) | 0.880 (22.35) |
Dimensions (Example: Receptacles with PC Tails)
| Shell Size | A (in/mm) | Sq B Bsc (in/mm) | C (in/mm) | D (in/mm) | E (in/mm) | F (in/mm) | J (in/mm) | K (in/mm) | L (in/mm) | M (in/mm) | T (in/mm) | Flat Thread | Thread |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 0.530 (13.46) | 0.363 (9.22) | 0.680 (17.27) | 0.575 (14.60) | 0.545 (13.84) | 0.350 (8.89) | 0.096 (2.44) | 0.91 (2.31) | 0.3125-0.05P-0.1L2A | 0.375-28 UNEF-2A | 0.244 (6.20) | 0.175 (4.44) | |
| 13 | 1.030 (26.16) | 0.812 (2.62) | 1.375 (34.92) | 1.078 (27.38) | 1.044 (26.52) | 0.845 (21.46) | 0.130 (3.30) | 0.126 (3.11) | 0.812-1P-0.2L2A | 0.8750-28 UNEF-2A | 0.703 (17.86) | 0.599 (15.21) |
Dimensions (Continued: Receptacles with PC Tails)
| Shell Size | A Flat (in/mm) | C Flat (in/mm) | N Flat (in/mm) | P (in/mm) | R (in/mm) | U (in/mm) | V (in/mm) | Sq W (in/mm) | X (in/mm) | Clinch Nuts |
|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 0.356 (9.04) | 0.380 (9.65) | 0.356 (9.04) | 0.380 (9.65) | 0.328 (8.33) | 0.774 (19.66) | 0.623 (15.82) | 2-56 | 0.030 (0.76) | |
| 13 | 0.851 (21.62) | 0.880 (22.35) | 0.851 (21.62) | 0.880 (22.35) | 0.828 (21.03) | 1.470 (37.34) | 1.132 (28.75) |
PC Tail Diameter
| Contact Size | S (in) | P (in) |
|---|---|---|
| #23 | 0.018/0.022 | |
| #20 | 0.028/0.024 | |
| #16 | 0.060/0.064 | |
| #12 | 0.092/0.096 |
2411061352_Bel-Fuse-MD801-009-07M6-4SB_C21598331.pdf