MIL-STD-202-307 Base Document:2015
Current
The latest, up-to-date edition.
Method 307, Contact Resistance
English
18-04-2015
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FOREWORD
1. SCOPE
2. APPLICABLE DOCUMENTS
3. DEFINITIONS
4. GENERAL REQUIREMENTS
5. DETAILED REQUIREMENTS
6. NOTES
Evaluates the resistance offered to a flow of current during its passage between the electrical contacting surfaces of connecting components, such as plugs, jacks, connectors, and sockets, or between the electrical contacts of current controlling components, such as switches, relays, and circuit breakers.
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NEW CHILD NOT 1 IS NOW ADDED
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| DocumentType |
Standard
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6
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NEW CHILD NOT 1 IS NOW ADDED
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US Military Specs/Standards/Handbooks
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Current
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The purpose of the contact resistance test is to determine the resistance offered to a flow of current during its passage between the electrical contacting surfaces of connecting components, such as plugs, jacks, connectors, and sockets, or between the electrical contacts of current controlling components, such as switches, relays, and circuit breakers. For practical reasons, lead and terminal resistances may be included in the actual measurement, as well as the contact resistance proper. In many applications it is required that the contact resistance be low and stable, so that the voltage drop across the contacts does not affect the accuracy of the general circuit conditions. If large currents are passed through high resistance contacts, excessive energy losses and dangerous overheating of the contacts may occur.
| MIL-DTL-28788 Revision C:2010 | SWITCHES, AIR AND LIQUID FLOW, SENSING, GENERAL SPECIFICATION FOR |
| MS33800 Revision E:2004 | CONNECTOR, RECEPTACLE, ELECTRICAL, PIN CONTACT NO. 12, 14 AND 16 AWG, WATERPROOF |
| MS27145 Revision C:2003 | CONNECTOR, PLUG, ELECTRICAL, NO. 14 AWG DOUBLE CONTACT, WATERPROOF |
| MS27142 Revision D:2003 | CONNECTOR, PLUG, ELECTRICAL, PIN CONTACT, NO. 12, 14 AND 16 AWG, WATERPROOF |
| MIL-PRF-24236 Revision D:2006 | SWITCHES, THERMOSTATIC, (METALLIC AND BIMETALLIC), GENERAL SPECIFICATION FOR |
| MIL-DTL-21604 Revision G:2017 | Switches, Rotary, Multipole and Selector, General Specification for |
| MIL-DTL-83731 Revision E:2016 | SWITCHES, TOGGLE, UNSEALED AND SEALED, GENERAL SPECIFICATION FOR |
| MIL-PRF-22710 Revision H:2013 | Switches, Code Indicating Wheel (Printed Circuit), Thumbwheel and Push-Button, General Specification for |
| MIL-DTL-9419 Revision H:2016 | Switch, Toggle, Momentary, Four-Position on, Center off, General Specification for |
| MIL-DTL-3786 Revision J:2013 | SWITCHES, ROTARY (CIRCUIT SELECTOR, LOW-CURRENT CAPACITY), GENERAL SPECIFICATION FOR |
| MIL-PRF-22885 Revision J:2016 | Switches, Push Button, Illuminated, General Specification for |
| MIL-DTL-28827 Revision C:2011 | SWITCHES, THERMOSTATIC, (VOLATILE LIQUID), HERMETICALLY SEALED, GENERAL SPECIFICATION FOR |
| MIL-PRF-8805 Revision G:2016 | SWITCHES AND SWITCH ASSEMBLIES, SENSITIVE, SNAP ACTION (BASIC, LIMIT, PUSH BUTTON AND TOGGLE SWITCHES), GENERAL SPECIFICATION FOR |
| MIL-DTL-3950 Revision K:2016 | Switches, Toggle, Environmentally Sealed, General Specification for |
| MIL-DTL-9395 Revision K:2016 | Switches, Pressure (Absolute, Gage and Differential) General Specification for |
| MIL-DTL-24317 Revision B:2010 | SWITCHES, MULTISTATION, PUSHBUTTON, ILLUMINATED AND NON-ILLUMINATED), GENERAL SPECIFICATION FOR |
| MS27144 Revision D:2016 | CONNECTOR, PLUG, ELECTRICAL, SOCKET CONTACT, NO. 14 AND 16 AWG, WATERPROOF |
| MIL-DTL-83729 Revision C:2013 | CHOPPERS, ELECTROMECHANICAL, GENERAL SPECIFICATION FOR |
| MIL-DTL-6807 Revision F:2012 | Switches, Rotary, Selector Power, General Specification for |
| MIL-DTL-15291 Revision G:2013 | SWITCHES, ROTARY, SNAP ACTION AND DETENT/SPRING RETURN ACTION, GENERAL SPECIFICATION FOR |
| MIL-PRF-22885-115 Base Document:2012 | SWITCHES, PUSHBUTTON, ULTRA-COMPACT, LED ILLUMINATION, NVIS, SEALED |
| MIL-DTL-25955 Revision A:2004 | CONNECTORS, ELECTRICAL, ENVIRONMENT RESISTING, MINIATURE, WITH SNAP-IN CONTACTS, OR HERMETICALLY SEALED WITH NON-REMOVABLE CONTACTS, GENERAL SPECIFICATION FOR |
| MS27146 Revision C:2003 | CONNECTOR, RECEPTACLE, ELECTRICAL, DOUBLE CONTACT, WATERPROOF |
| MIL-R-83516 Revision C:2017 | Relays, Reed, Dry, General Specification for (No S/S Document) |
| MIL-DTL-8834 Revision K:2016 | Switches, Toggle, Positive Break, General Specification for |
| MIL-PRF-6106 Revision P:2014 | Relays, Electromagnetic General Specification for |
| MIL-DTL-83725 Revision E:2017 | Relays, Vacuum, General Specification for |
| MIL-PRF-39016 Revision H:2017 | Relays, Electromagnetic, Established Reliability, General Specification for |
| MIL-PRF-83536 Revision F:2017 | RELAYS, ELECTROMAGNETIC, ESTABLISHED RELIABILITY, 25 AMPERES AND BELOW, GENERAL SPECIFICATION FOR |
| MIL-PRF-28776 Revision H:2017 | Relays, Hybrid, Established Reliability, General Specification for |
| A-A-50505 Revision A:2015 | CONNECTOR ASSEMBLY, ELECTRICAL, IN-LINE |
| MS27143 Revision C:2003 | CONNECTOR, PLUG, ELECTRICAL, SOCKET CONTACT, NO. 12 AWG, WATERPROOF |
| MIL-PRF-83726 Revision H:2017 | Relays, Hybrid and Solid State, Time Delay, General Specification for |
| MIL-DTL-5757 Revision N:2017 | RELAYS, ELECTROMAGNETIC, GENERAL SPECIFICATION FOR |
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