## ZH8525 series electrical connector (U.S. military standard MIL-C-26482G)
> This series of products fully comply with GJB598A-1996 (US military standard MIL-C-26482G) and have the characteristics of bayonet type quick connection and separation. This series of products is widely used for electrical connections between aviation, aerospace, and other electronic devices.

#### 1、 Product Features
1. There are anti liquid and dust rings inside the sealing body hole, which seal each wire.
2. After the plug and receptacle are combined, the sealing ring seals the surrounding area to prevent liquid dust from soaking inside.
3. After the combination of the plug and receptacle, the compressed waveform spring generates a constant locking force.
4. Use potting material to maintain the sealing between the insulation, sealing body, and shell.
5. The rear locking teeth prevent the clamping ring from rotating and tighten the sealing body.

#### 1、 Technical performance
1. Technical indicators
|Indicator| Value|
|:------ |:--------|
|Insulation resistance | Normal conditions ≥ 5000M Ω Wet and hot conditions ≥ 100MΩ|
|Environmental temperature | -55 ℃ ~ +200 ℃|
|Air tightness | When the pressure difference between the two ends of the sealed socket is 0.1MPa, the air leakage rate is ≤ 1x10 ⁻⁷Pa·m³/ S|
|Salt spray resistance | 48 or 500 hours|
|Relative humidity |+40 ℃ ~ +65 ℃ 95%-98% 100M Ω|
|Enterprise Standard Number | Q/3E 20018-2003|

2. Dielectric withstand voltage (V)
|Working height | Condition I | Condition II|
|:------ |:------ |:------|
|Sea level | 1500 | 2300|
|21000m | 375 | 500|
3. Contact resistance (mΩ)
|Contact number | Unsealed contact resistance (mΩ) | Sealed contact resistance (A)|
|: -------- |: -------- |: --------|
|20 | ≤ 7.4 | ≤ 14|
|16 | ≤ 3.8 | ≤ 6.5|
|12 | ≤ 2.2 | ≤ 3.8|

#### 2、 Tag Description
_ Example: ZH852510N18B32PNHV-C (needle installation)_

|ZH8525 | 10 | N | 18 | B | 32 | P | N | H | V | -C|
|:------ |:------ |:------ |:------ |:------ |:------ |:------ |:------ |:------ |:------|:------|
|Series number | 10 square receptacle| N - nickel plated aluminum alloy | 18 shell number | B-bayonet connection | 32 contact -arrangement - group no| P-pin | N - normal key position | H - soldering contact | V - fluorosilicone | C - left plug|

##### 1、 Main model marking
|Serial number | code meaning | description|
|:-------- |:-------- |:--------|
|1 | Series number | ZH8525|
|2 | Connector type | 10- Square receptacle, 16- Plug (without shielding ring), 17- Thread mounted round receptacle|
|3 | Surface treatment | R-black anodized aluminum alloy, N-nickel plated aluminum alloy, G-rainbow cadmium plated aluminum alloy, W-military green cadmium plated aluminum alloy|
|4 | Shell number | 8,10,12,14,16,18,20,22,24|
|5 | Connection method | B-bayonet connection T-threaded connection|
|6 | Insulator contact arrangement | (see insulator contact arrangement diagram)|
|7 | Contact type | P-pin S-socket|
|8 | Key position transformation | N, W, X, Y, Z|
|9 | Contact marking instructions | Not marked - crimped contact H-soldering contact|
|10 | Sealing body material | Not marked - silicone rubber, V-fluorosilicone|
|11 | Identification Description | Not Marked - (Right) Plug, C-Left Plug|

#### 3、 Airtight sealing type
|ZH8525 | 02H | 18 | B | 32 | P | N | V | - C|
|: ------ |: ------ |: ------ |: ------ |: ------ |: ------ |: ------ |: ------ |: ------|
|Series number | 10 square plate airtight receptacle| 18 shell number | B bayonet connection | 32 contact group number | P pin | N normal key position | V fluorosilicone | C left plug|

##### 1 Marking of main models for airtight seals
|Serial number | code meaning | description|
|:-------- |:-------- |:----|
|1 | Series number | ZH8525|
|2 | Connector Type | 1H Round Air-sealed Receptacle, 02H Square Round Air-sealed Receptacle, 07H Nut Installation Air-sealed Receptacle, 10N (-C) Receptacle Round Wall Through Air-sealed Receptacle, 07H (-C) Nut Installation Wall Through Air-sealed Receptacle|
|3 | Shell number | 8,10,12,14,16,18,20,22,24|
|4 | Connection method | B-bayonet connection T-threaded connection|
|5 | Insulator hole arrangement | (see insulator contact arrangement diagram)|
|6 | Contact type | P-pin|
|7 | Key position transformation | N, W, X, Y, Z|
|8 | Sealing body material | F-silicone rubber (not marked for wall air-sealed receptacles), V-fluorosilicone|
|9 | Identification instructions | Not marked - Air-sealed receptacle, C - Wall through air-sealed receptacle |

_ Note:_
1. Wall through air-sealed receptacles can only use pin contacts, and plugs that are compatible with them must use socket contacts. Each wall through air-sealed socket must use two plugs, with the left plug marked with C and the (right) plug not marked
2. Add B008 at the end of the model - special contact parts that can be crimped and thickened with wires; 0.38/0.93mm² for 20#, 16# uses 0.93/1.91mm²、  1.91/4mm² for 12# wire

##### 3. Code description at the end of the order
|Series Number | Code Meaning | Description|
|:------ |:------ |:--------|
|1 | Series number | ZH852|
|2 | Type of tail attachment | 01- Simplified tail attachment; 02- Straight clamp type tail accessory; O3- Angled clamp type tail accessory; 04- Angled tail attachment; 05- Shielded tail accessories; 06- Angled clamp tail accessories|
|3 | Surface treatment | A-black anodizing; W - Military green cadmium plating; R-blue anodizing; J - Rainbow cadmium plating; N-nickel plating|
|4 | Shell number | 08,10,12,14,16,18,20,22,24|