HRS HRM 502S 40 SMA Connector MIL IEC Standard Suitable for High Density and Robust Applications
HRM Series MIL/IEC Standard SMA Connector
Product Overview
The HIROSE HRM Series offers MIL/IEC standard SMA connectors, first developed in 1967, recognized for their long-standing reliability. These connectors are designed for high-frequency performance, featuring a compact, lightweight, and robust construction suitable for high-density mounting. With a history of excellent reliability across consumer electronics, defense, communications, and aerospace industrial equipment, the HRM series provides a wide range of variations, including impedance matching and reverse types, catering to diverse application needs. They are RoHS2 compliant.
Product Attributes
- Brand: HIROSE
- Standard Compliance: MIL-C-39012, IEC 60169-15
- Certifications: RoHS2 Compliant
Technical Specifications
| Specification | Details |
|---|---|
| Nominal Characteristic Impedance | 50 |
| Operating Temperature | -55 to +125 |
| Rated Voltage | 330V AC |
| Operating Relative Humidity | 85 Max. |
| Frequency Range | 0 to 18GHz (Note: Ratings and standards may vary by products) |
| Contact Resistance | 4m Max. (Measured at 100mA Max.) |
| Insulation Resistance | 5000M Min. (Measured at DC 500V) |
| Withstanding Voltage | 1000V AC for 60 sec. (No insulation breakdown) |
| V.S.W.R. | See below (Measured using Network Analyzer) |
| Female Contact Extraction Force | 1.5N Min. / 0.3N Min. |
| Center Contact Fixed Torque | 16.7mNm Min. |
| Coupling Tightening Torque | 0.6 to 1.0Nm |
| Coupling Fixed Strength | 490N Min. |
| Mating Durability | Contact Resistance: 6m Max. (1000 times) |
| Vibration Resistance | No electrical discontinuity of 1 s or more; No damage, cracks, or parts dislocation (Frequency: 10 to 2000Hz, Half amplitude: 0.75mm, Acceleration: 196m/s, 4 hours in each of the 3 axis) |
| Shock Resistance | No electrical discontinuity of 1 s or more; No damage, cracks, or parts dislocation (Acceleration: 1960m/s, Duration: 6ms, Wave form: Half-sine wave, 3 times in each of the 3 axis) |
| Humidity Resistance | Insulation Resistance: 100M Min. (in high humidity); 1000M Min. (in dry environment) (Left for 10 cycles (240 hours) in an environment with temperature ranging from +25 to +65 and humidity ranging from 90 to 98%.) |
| Heat Shock Resistance | No damage, cracks, or parts dislocation (65 : 30 min. 5 to 35 : within 5 min. 125 2 : 30 min. 5 to 35 : within 5 min.) (5 cycles) |
| Corrosion Resistance | Satisfying the V.S.W.R. Standard (Continuous 48 hour cycle in 5% salt water solution) |
Applications
Cable or radio communication equipment, broadcasting equipment, radar equipment, for in-flight wiring in electronic measuring devices, for connection between units, and for input and output of equipment configurations.
Materials / Finish
| Component | Material | Finish |
|---|---|---|
| Shell | Stainless steel | Gold Plating / Passivated Finish |
| Coupling | Stainless steel | Gold Plating / Passivated Finish |
| Female Contact | Beryllium steel | Gold Plating |
| Male Contact | Brass | Gold Plating |
| Crimp Sleeve | Copper | Nickel Plating |
| Insulator | PTFE | - |
| Rubber Gasket | Silicone rubber | - |
| Boot | Polyolefin | - |
Product Variations
- HRM(G): Excellence impedance matching type
- SMA(R): Reverse type (male and female of central contact inverted)
- Items for small-diameter cables (connects to U.FL, MMCX Series)
- Various receptacle and terminators available
Product Number Structure
HRM--- (Series Name - Connector Type - Serial Number)
Surface Treatment Classification
- Gold-plated type
- S type (Passivated) - denoted by 'S' at the end of the part number.
Technical Guidance
- S-Type Recommendations: Passivated stainless steel offers enhanced corrosion resistance and avoids gold plating powder accumulation.
- High-Frequency Performance: Cutoff frequency calculated at 24.5 GHz; industrially usable upper limit around 18 GHz. Guaranteed frequency limit is 12.4 GHz, with some products performing up to 18 GHz typically.
- Insertion Loss: Loss 0.03 f(GHz) (dB); below 0.1 dB over the guaranteed bandwidth.
- High Frequency Leakage: More than 100 dB within the guaranteed frequency range under specified conditions.
- Coupling Tightening Torque: Recommended range is 0.6 to 1.0 Nm (6 to 10 kg/cm).
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