# Reed Relay, DPST, 5 VDC, MS Series, Through Hole, 280 ohm, 500 mA
**URL**: https://novapart.co/products/MS05-2A87-78D/reed-relay-dpst-5-vdc-ms-series-through-hole-280
**SKU**: MS05-2A87-78D
**Manufacturer**: STANDEXMEDER
**Category**: Switches & Relays || Relays || Reed Relays
**Price**: €9.7000
**Stock**: 50+
**Lead Time**: 120 days (indicative)
## Description
Contact Configuration:DPST; Coil Voltage:5VDC; Product Range:MS Series; Relay Mounting:Through Hole; Coil Resistance:280ohm; Switching Current Max:500mA; Switching Voltage Max:200V; SVHC
## Specifications
| Parameter | Value |
|---|---|
| Coil Voltage | 5VDC |
| Product Range | MS Series |
| Relay Mounting | Through Hole |
| Coil Resistance | 280ohm |
| Contact Configuration | DPST |
| Switching Current Max | 500mA |
| Switching Voltage Max | 200V |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2832683/)
## MS Series Reed Relays
- **Features: Micro Single In-Line Relay, High Resistance Coil Option available**
- **Applications: ATE Systems, Computer Peripherals, Alarm Systems, Measurement Equipment & Others**
- **Markets: Test and Measurement, Security & Others**
- - Part Description: M S 0 0 1 A 8 7 7 5 X X X
|Customer Options
~~a~~|Switch Model
~~a~~|Unit
~~a~~
~~a~~|
|---|---|---|
|Contact Data
~~a~~
~~a~~|87
(A Dry)
~~a~~
~~a~~||
|Contact Material
~~a~~|Rhodium
~~a~~|~~a~~|
|Rated Power (max.)
AnyDC combination of V&A not to exceed their individual max.’s|10|W|
|Switching Voltage (max.)
DC orpeak AC|200|V|
|Switching Current (max.)
DC orpeak AC|0.5|A|
|Carry Current (max.)
DC orpeak AC|1.0|A|
|Contact Resistance (max.)
@0.5V & 10mA|150|mOhm|
|Breakdown Voltage (min.)
Accordingto EN60255-27|0.225|kVDC|
|Operating Time (max.)
IncludingBounce,Measured w/40%Pull-In Overdrive|0.5|ms|
|Release Time (max.)
Measured without Coil Suppression|0.1|ms|
|Insulation Resistance (typ.)
Rh<45%,100V Test Voltage|1011|Ohm|
|Capacitance (typ.)
@10kHz across open Switch|0.2|pF|
Version 03 01 Aug 2025 Page 1 D. Stastny
APAC: +86 21/37606000 | salesasia@standexmeder.com
USA: +1 866.782.6339 | info@standexelectronics.com
EMEA: +49 (0)7733 9253 200 | salesemea@standexelectronics.com
## MS Series Reed Relays
|Coil Data (at 20**°**C)|Coil Data (at 20**°**C)|Coil Voltage (VDC)|Coil Voltage (VDC)|Coil Resistance
(Ohm)
Pull-In Voltage|Pull-In Voltage
(VDC)|Drop-Out
Voltage (VDC)|Coil Power
(mW)|
|---|---|---|---|---|---|---|---|
|Contact
Form|Switch
Model|Nominal|Max.|Typical (**±**10 %)|Max.|Min.|Nominal|
|1A|87|05|7.5|280|3.75|0.5|89|
|||05HR|7.5|500|3.75|0.75|50|
|||12|18|700|8.4|1.8|205|
|The Pull-In,Drop-Out Voltage and Coil Resistance will change at rate of 0.4%per °K||||||||
|RelayData(at 20°C)|RelayData(at 20°C)|Unit|
|---|---|---|
|Dielectric Strength Coil/Contact (min.)
Accordingto IEC 60255-27||kVDC|
|Insulation Resistance Coil/Contact (min./typ.)
Rh<45%,200V Test Voltage|1013|Ohm|
|Capacitance Coil/Contact (typ. / max.)
@10 kHz with Closed Switch|0.8|pF|
|@
Shock Resistance (max.)
1/2 sine wave duration 11ms
Vibration Resistance (max.)|50|g|
|Vibration Resistance (max.)
10 – 2,000 Hz|20|g|
|Operating Temperature (max.)
Surroundingof the relay’s housing|-20 to 70|°C|
|Storage Temperature (max.)|-35 to 95|°C|
|Surroundingof the relay’s housing
Soldering Temperature (max.)
5 seconds max.|-35 to 95
260|°C
°C|
|Washability
Aqueous rinsingsuitable. Proper dryingnecessary.|Fully Sealed||
Dimensions in mm (Tolerances acc. to ISO 2768-m)
|**Glossary Option**|**Glossary Option**|
|---|---|
|**L**|Standard, with Magnetic Shield|
|**D**|with Diode, with Magnetic Shield|
|**_M_**|_with Magnetic Shield, without Diode_|
|**_Q_**|_with Diode and Magnetic Shield_|
|**_HR_**|_High Resistance Coil_|
|MS Relays are available with “L” and “D” Option||
**==> picture [225 x 110] intentionally omitted <==**
**----- Start of picture text -----**
Pin Out Top View (Pitch 3.81mm [0.150] / Top View)
75L 75D
tC
1 2 3 4
1 2 3 4
**----- End of picture text -----**
Version 03 01 Aug 2025 Page 2 D. Stastny
APAC: +86 21/37606000 | salesasia@standexmeder.com
USA: +1 866.782.6339 | info@standexelectronics.com
EMEA: +49 (0)7733 9253 200 | salesemea@standexelectronics.com
## MS Series Reed Relays
**==> picture [251 x 183] intentionally omitted <==**
**----- Start of picture text -----**
RT Life Test Data (*Load increase reduces life expectancy of Reed Switches)
Load KSK-1A87
100V/10mA
mN/m
20V/500mA AT
10V/100mA
H(A
<5V/10mA10V/4mA UT, LT
1,E+05 1,E+06 1,E+07 1,E+08 1,E+09 1,E+10
Typical Number of Operations
**----- End of picture text -----**
## Glossary Contact Form
|Form A|NO = Normally Open Contacts
SPST = Single Pole Single Throw|
|---|---|
|Form B|NC = Normally Closed Contacts
SPST = Single Pole Single Throw|
|Form C|Changeover
SPDT = Single Pole Double Throw|
|MS Relays are available onlyin “Form A” configuration||
## Handling & Assembly Instructions ~~_~~
- Switching inductive and/or capacitive loads create voltage and/or current peaks, which may damage the relay. Protective circuits need to be used - see our website.
- External magnetic fields and magnetic effects, due to adjacent relays in high density matrices that may influence the relays' electrical characteristics, must be taken into consideration.
- Mechanical shock impacts, e.g. dropping the relays, may cause immediate or post-installation failure.
- Wave soldering: maximum 260°C / 5 seconds.
Please note: All technical specifications on this series datasheet refer to the standard product range. Modifications in the sense of technical progress are reserved. For general information only. For more specific information, please consult the product datasheet, available upon request.
This series datasheet could contain technical inaccuracies or typographical errors. Changes are periodically made to the information herein. These change will be incorporated in future revisions.
For deviating values, most current specifications and products please contact your nearest sales office.
Version 03 01 Aug 2025 Page 3 D. Stastny
APAC: +86 21/37606000 | salesasia@standexmeder.com
USA: +1 866.782.6339 | info@standexelectronics.com
EMEA: +49 (0)7733 9253 200 | salesemea@standexelectronics.com
## Links
- [View this product on Novapart](https://novapart.co/products/MS05-2A87-78D/reed-relay-dpst-5-vdc-ms-series-through-hole-280)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/standexmeder/ms05-2a87-78d/reed-relay-dpst-0-5a-200v-th/dp/2832683)
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