Mercury Wetted Relay HGSR

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Product family overview

Mercury Wetted Relay HGSR application and selection guide

Mercury wetted relays provide stable low contact resistance and extremely low or bounce-free switching behavior for specialized precision measurement and test applications where signal integrity is critical.

Use this family where bounce performance and contact stability are more important than a general-purpose relay solution. Confirm orientation, regulatory and application limits before production use.

Precision test systemsPulse and timing circuitsInstrumentation switchingIndustrial measurement equipment

1Control coil

2Mercury wetted contact

3Stable low-resistance path

4Measurement / pulse output

Main parameters

Key selection parameters

Series: HGFR / HGMR / HGSR / HVR and related families
Switching behavior: Low bounce and stable contact resistance
Signal type: Precision signal, pulse and test switching
Orientation: Series-dependent; confirm mounting requirement by datasheet
Compliance note: Mercury handling/application suitability must be confirmed for the target market

Engineering selection notes

Before choosing a model

These notes keep product pages useful for engineers while avoiding overclaims. Final ratings remain model- and application-specific.

Orientation and compliance must be checkedMercury wetted relays are specialized precision parts. Many types require a defined mounting orientation and may be restricted by RoHS, WEEE, transport, disposal or customer environmental rules.

Bounce wording is contact-technology specificMercury wetted contacts are selected where extremely low or bounce-free switching is required. Do not apply this claim to dry reed relays unless an individual datasheet supports it.

Best fit: precision signal switchingUse mercury wetted types for low-level measurement, pulse/timing and data-acquisition circuits where contact stability is critical, not as a universal relay upgrade.

Series comparison

Mercury wetted relay series comparison

Use this table to choose the starting series before checking the individual model datasheet for coil, contact form, orientation and regulatory suitability.

Series	Best fit	Switching behavior	Selection focus
HGFR	Fast precision signal switching	Low bounce mercury wetted contact	Confirm coil voltage, contact form and mounting orientation
HGMR	Measurement and instrumentation switching	Stable low contact resistance	Confirm signal level, life requirement and package constraints
HGSR	Sensitive / compact mercury relay applications	Repeatable low-level switching	Confirm footprint, orientation and environmental limits
HVR / related	Higher voltage precision switching	Family-specific ratings	Check datasheet before replacing with general reed relay

Model display

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.

HGSR12-2A0412V 2Channel High Current Mercury 5A Wetted Relay HGSR12-2A04

Coil Voltage: 12 VDC
Min Breakdown Voltage: 4K VDC
Max Carrying Current: 5A
Series: 2 channel 4kv

Details · Datasheet

HGSR12-1A0412V High Current Mercury 5A Wetted Relay HGSR12-1A04

Coil Voltage: 12 VDC
Min Breakdown Voltage: 4K VDC
Max Carrying Current: 5A
Series: 1 channels 3kv

Details · Datasheet

HGSR12-1CM12V Mercury Wetted Relay with Shell HGSR12-1CM

Coil Voltage: 12VDC
Min Breakdown Voltage: 2K VDC
Max Carrying Current: 5A
Series: 1 channels 2kv

Details · Datasheet

HGSR24-2A0424V 2 Channel High Current Mercury 5A Wetted Relay…

Coil Voltage: 24 VDC
Min Breakdown Voltage: 4K VDC
Max Carrying Current: 5A
Series: 2 channels 4kv

Details · Datasheet

HGSR24-1A0424V High Current Mercury 5A Wetted Relay HGSR24-1A04

Coil Voltage: 24 VDC
Min Breakdown Voltage: 4K VDC
Max Carrying Current: 5A
Series: 1 channels 3kv

Details · Datasheet

HGSR24-1CM24V Mercury Wetted Relay with Shell HGSR24-1CM

Coil Voltage: 24VDC
Min Breakdown Voltage: 2K VDC
Max Carrying Current: 5A
Series: 1 channels 2kv

Details · Datasheet

HGSR05-2A045V 2 Channel High Current Mercury 5A Wetted Relay…

Coil Voltage: 5VDC
Min Breakdown Voltage: 4K VDC
Max Carrying Current: 5A
Series: 2 channels 4kv

Details · Datasheet

HGSR05-1A045V High Current Mercury 5A Wetted Relay HGSR05-1A04

Coil Voltage: 5VDC
Min Breakdown Voltage: 4K VDC
Max Carrying Current: 5A
Series: 1 channels 3kv

Details · Datasheet

HGSR05-1CM5V Mercury Wetted Relay with Shell HGSR05-1CM

Coil Voltage: 5VDC
Min Breakdown Voltage: 2K VDC
Max Carrying Current: 5A
Series: 1 channels 2kv

Details · Datasheet

HGSR05-1A04HGSR05-1A04

Series: HGFR / HGMR / HGSR / HVR and related families
Switching behavior: Low bounce and stable contact resistance
Signal type: Precision signal, pulse and test switching
Orientation: Series-dependent; confirm mounting requirement by datasheet

Details · Datasheet

HGSR05-1CHGSR05-1C

Series: HGFR / HGMR / HGSR / HVR and related families
Switching behavior: Low bounce and stable contact resistance
Signal type: Precision signal, pulse and test switching
Orientation: Series-dependent; confirm mounting requirement by datasheet

Details · Datasheet

HGSR05-2A04HGSR05-2A04

Series: HGFR / HGMR / HGSR / HVR and related families
Switching behavior: Low bounce and stable contact resistance
Signal type: Precision signal, pulse and test switching
Orientation: Series-dependent; confirm mounting requirement by datasheet

Details · Datasheet

View complete model index

FAQ

Mercury Wetted Relay HGSR 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 Mercury Wetted Relay HGSR model?

Start from the application requirement, then compare Series, Switching behavior, Signal type, Orientation, Compliance note. 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.

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