SMD Reed Relays application and selection guide
Standard and miniature SIP reed relays provide compact, hermetically sealed signal switching for PCB-mounted instrumentation, telecom, control and test equipment where low coil power, fast operate times and stable contact resistance matter.
Select this family for compact signal-level switching. Confirm breakdown voltage, coil power and switching current against the model datasheet before final design.

Key selection parameters
- Clases de tensión
- Valores nominales a nivel de señal por serie; tensión de ruptura específica del modelo según la hoja de datos
- Configuraciones de contactos
- 1 Form A / 1 Form B y opciones según la serie
- Opciones de bobina
- 5 VDC / 12 VDC / 24 VDC nominal; bobinas personalizadas bajo pedido
- Enfoque en aislamiento
- Conmutación de señal sellada de baja fuga
- Montaje
- Opciones: PCB de orificio pasante, SMD o conector
Before choosing a model
Estas notas mantienen las páginas de producto útiles para los ingenieros sin exagerar las prestaciones. Los valores nominales finales siguen siendo específicos del modelo y de la aplicación.
High voltage reed relay series comparison
Use the voltage class as the first filter, then confirm coil voltage, contact form, carry current, package and insulation details on the individual model page.
| Voltage class | Typical use | Selection focus | Model page confirms |
|---|---|---|---|
| 4kV | Compact high-voltage signal switching | Small footprint, relay density and low leakage | Coil voltage, contact form, switching current and package |
| 6kV | ATE and instrumentation switching above standard relay voltage | Dielectric strength and channel density | Breakdown voltage, carry current and contact material |
| 10kV | Hipot, medical and precision HV test switching | Safety margin, insulation path and switching current | Coil data, tungsten contact options and timing |
| 15kV | Higher isolation test matrices and HV measurement | Creepage/clearance, package and load profile | Dimensions, dielectric rating and mounting style |
| 20kV | Specialized HV test and instrumentation platforms | Maximum isolation requirement and custom assembly options | Datasheet limits, RFQ application review and sample validation |
Representative models in this family
Each model links to its own detail page and datasheet/RFQ path. Use the All Models index for the complete list.
- Voltage classes: Signal-level ratings by series; model-specific breakdown voltage per datasheet
- Contact forms: 1 Form A / 1 Form B and series-dependent options
- Coil options: 5 VDC / 12 VDC / 24 VDC nominal; custom coils on request
- Insulation focus: Sealed low-leakage signal switching
- Voltage classes: Signal-level ratings by series; model-specific breakdown voltage per datasheet
- Contact forms: 1 Form A / 1 Form B and series-dependent options
- Coil options: 5 VDC / 12 VDC / 24 VDC nominal; custom coils on request
- Insulation focus: Sealed low-leakage signal switching
- Voltage classes: Signal-level ratings by series; model-specific breakdown voltage per datasheet
- Contact forms: 1 Form A / 1 Form B and series-dependent options
- Coil options: 5 VDC / 12 VDC / 24 VDC nominal; custom coils on request
- Insulation focus: Sealed low-leakage signal switching
- Voltage classes: Signal-level ratings by series; model-specific breakdown voltage per datasheet
- Contact forms: 1 Form A / 1 Form B and series-dependent options
- Coil options: 5 VDC / 12 VDC / 24 VDC nominal; custom coils on request
- Insulation focus: Sealed low-leakage signal switching
- Voltage classes: Signal-level ratings by series; model-specific breakdown voltage per datasheet
- Contact forms: 1 Form A / 1 Form B and series-dependent options
- Coil options: 5 VDC / 12 VDC / 24 VDC nominal; custom coils on request
- Insulation focus: Sealed low-leakage signal switching
SMD Reed Relays selection FAQ
Answers are shown on-page to match the structured FAQ data and help engineers prepare datasheet review or RFQ requests.
How do I choose a SMD Reed Relays model?
Start from the application requirement, then compare Voltage classes, Contact forms, Coil options, Insulation focus, Mounting. Open the model detail page and PDF datasheet before confirming the final ordering code.
Where can I find individual datasheets for this product family?
Each representative model card links to its own detail page and PDF datasheet. For production projects, submit an RFQ so voltage, current, mounting and compliance requirements can be confirmed.
What information should be included in an RFQ?
Include working voltage, current, load type, contact or output form, coil or control voltage, mounting style, environment, validation quantity and expected production volume.
SMD reed relays for reflow assembly: MSG and 105-series surface-mount packages with high insulation resistance and low profile, engineered for automated production of instrumentation and measurement boards.
SMD Reed Relays English catalog
Review the standardized English product-family catalog, datasheets and RFQ path for this product category.
Download Category Catalog Complete Product Catalog Solicitar cotización de ingeniería
Se prefieren los PDF originales de origen cuando están disponibles. Los PDF generados en inglés se utilizan solo cuando no se encuentra un PDF original; los valores nominales finales, los planos y la idoneidad para la aplicación se confirman mediante RFQ.
Refine this product family
Use the selectors to narrow visible Shop categories or product cards. If exact electrical requirements are not clear, send the filter as an RFQ instead.
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