Product Description
Standex-Meder Electronics RM05-4AS-4/4 Reed Relay – 4-Pole, Low Profile, High-Frequency Switching
This used Standex-Meder Electronics RM05-4AS-4/4 is a high-performance reed relay featuring four independent SPST-NO (1 Form A) switches in a single surface-mount package . It is designed for automated test equipment (ATE), high-frequency applications, and precision instrumentation where fast, reliable switching is required.
The relay features a 5VDC coil with a resistance of 185 Ohms, drawing 27mA . Key specifications include a contact rating of 300mA, switching voltage up to 180VAC/DC, and extremely fast operate/release times of 0.6ms and 0.05ms respectively . The BGA termination style ensures secure surface mounting.
This product is listed as Obsolete by the manufacturer and is no longer in active production . It is sold as a used component.
Condition Note: This unit is untested and sold as-is. Handling precautions for static-sensitive components should be observed.
Key Specifications
| Specification | Details |
|---|---|
| Manufacturer | Standex-Meder Electronics |
| Part Number | RM05-4AS-4/4 |
| Product Type | Reed Relay |
| Contact Form | 4PST (4 x SPST-NO, 1 Form A x 4) |
| Coil Voltage | 5 VDC |
| Coil Current | 27 mA |
| Coil Resistance | 185 Ohms |
| Contact Current Rating | 300 mA |
| Switching Voltage | 180 VAC / 180 VDC (Max) |
| Operate Time | 0.6 ms |
| Release Time | 0.05 ms |
| Must Operate Voltage | 3.75 VDC |
| Must Release Voltage | 0.5 VDC |
| Termination Style | BGA (Ball Grid Array) |
| Operating Temperature | -20°C to +85°C |
| Coil Power | 135 mW |
| Mounting Type | Surface Mount |
| Part Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| MSL | 1 (Unlimited) |
| ECCN | EAR99 |
Key Features & Applications
| Feature | Benefit / Application |
|---|---|
| 4 Poles (4PST) | Four independent switches in one compact package . |
| High Speed Operation | 0.6ms operate time ideal for automated test equipment (ATE) . |
| High Frequency Performance | <40ps rise time for switching fast pulses with minimal signal degradation . |
| Reed Relay Technology | Hermetically sealed contacts for reliable switching in instrumentation. |
| BGA Termination | Low-profile, secure surface mount design for high-density PCBs . |
| Non Latching | Coil type requires continuous power to maintain switch state . |
-
Automated Test Equipment (ATE) : High-speed, reliable switching for device testing
-
High-Frequency Switching: Telecommunication and RF applications with fast rise times (<40ps)
-
Instrumentation: Precision measurement and data acquisition systems
-
Industrial Control: Switching low-level signals in manufacturing equipment
-
Medical Electronics: Diagnostic and monitoring equipment requiring long relay life
-
Telecommunications: Signal routing and switching in networking gear
| Weight | 3 lbs |
|---|---|
| Dimensions | 8 × 6 × 4 in |
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