MDSM-4 Series - 15.3mm Surface Mount Reed Switch
DataSheet:Littelfuse Reed Switches MDSM-4 datasheet
A sub-miniature, surface mount, normally open switch with a 15.24mm long x 2.28mm diameter (0.600" x 0.090") glass envelope. Capable of switching 200Vdc at 10W. Available sensitivity range of 12-38 AT. High insulation resistance of 1010 ohms minimum and contact resistance of less than 100 milliohms. Available in axial-leaded version (MDCG-4). Ideally suited for reed relays, security, metering, limit sensing, telecom and office equipment applications. Available in bulk packaging or tape and reel.
Features:
- Surface mount, normally open switch capable of switching 200Vdc or 0.5A at up to 10 Watts
- Available sensitivity range of 12-38 AT
Benefits:
- Hermetically sealed switch contacts are not affected by and have no effect on their external environment
- Zero operating power required for contact closure
- Excellent for switching micro-controller logic level loads
Applications:
- Position sensing
- Level sensing
- Security
- Industrial controls
- Telecom
- Office equipment
- Home appliances
Ordering Information
| Catalog # | Switching Power (W) | Switching Voltage (V DC) | Switching Current (A DC) | Breakdown Voltage (V DC) | Max Contact Resistance (Ω) | Magnetic Sensitivity (AT) | Body Length (mm) | Overall Length (mm) | Switch Type |
|---|---|---|---|---|---|---|---|---|---|
| MDSM-4B-12-18 | 10 | 200 | 0.5 | 250 | 0.1 | 12 to 18 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4B-12-23 | 10 | 200 | 0.5 | 250 | 0.1 | 12 to 23 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4B-17-23 | 10 | 200 | 0.5 | 250 | 0.1 | 17 to 23 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4B-17-28 | 10 | 200 | 0.5 | 250 | 0.1 | 17 to 28 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4B-22-28 | 10 | 200 | 0.5 | 250 | 0.1 | 22 to 28 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4B-22-33 | 10 | 200 | 0.5 | 250 | 0.1 | 22 to 33 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4B-27-33 | 10 | 200 | 0.5 | 250 | 0.1 | 27 to 33 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4B-27-38 | 10 | 200 | 0.5 | 250 | 0.1 | 27 to 38 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4B-32-38 | 10 | 200 | 0.5 | 250 | 0.1 | 32 to 38 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-12-18 | 10 | 200 | 0.5 | 250 | 0.1 | 12 to 18 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-12-23 | 10 | 200 | 0.5 | 250 | 0.1 | 12 to 23 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-17-23 | 10 | 200 | 0.5 | 250 | 0.1 | 17 to 23 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-17-28 | 10 | 200 | 0.5 | 250 | 0.1 | 17 to 28 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-22-28 | 10 | 200 | 0.5 | 250 | 0.1 | 22 to 28 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-22-33 | 10 | 200 | 0.5 | 250 | 0.1 | 22 to 33 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-27-33 | 10 | 200 | 0.5 | 250 | 0.1 | 27 to 33 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-27-38 | 10 | 200 | 0.5 | 250 | 0.1 | 27 to 38 | 15.24 | 19.3 | A:SPST-NO |
| MDSM-4R-32-38 | 10 | 200 | 0.5 | 250 | 0.1 | 32 to 38 | 15.24 | 19.3 | A:SPST-NO |
