ADW1203W General Purpose Relay SPST 8A 3VDC

Part Overview

The ADW1203W is a general purpose relay manufactured by Panasonic Electric Works, classified as a Single Pole Single Throw (SPST-NO, 1 Form A) relay with 3VDC coil voltage and 8A contact rating. This through-hole mounted relay is designed for applications requiring latching dual-coil operation with sealed flux protection. The part is currently active in production with 777 pieces available in stock. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

ADW1203W

Panasonic Electric WorksIn Stock: 877ADW1203W Datasheet

Current PartRFQ

ADW1203TW

Panasonic Electric WorksIn Stock: 1365ADW1203TW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The ADW1203W has one identified parametric equivalent: ADW1203TW. Substitution is based on strict electrical and mechanical parameter matching within the DW series. The substitute part maintains identical specifications across all critical parameters that determine functional compatibility:

• Coil voltage and current characteristics (3VDC, 133 mA)
• Contact form and rating (SPST-NO, 8A, 250VAC max)
• Switching performance (15 ms operate and release times)
• Thermal and environmental operating range (-40°C ~ 85°C)
• Mechanical mounting and termination (Through Hole, PC Pin)
• Contact material composition (Silver Tin Oxide)
• Coil resistance (22.5 Ohms)

Both parts are manufactured by Panasonic Electric Works within the same DW series and share identical base product number ADW120. Substitution is valid where the specified parameters are the controlling factors for component selection.

Parameter Comparison

Engineering Selection Recommendations

Both ADW1203W and ADW1203TW are active production parts from Panasonic Electric Works with identical electrical and mechanical specifications. Selection between these parts is based on compliance requirements and inventory availability.

The ADW1203W carries RoHS Compliant certification, while the ADW1203TW carries ROHS3 Compliant certification. The ADW1203TW additionally carries REACH Unaffected status. Both parts maintain CQC, cURus, and VDE approvals. For applications requiring ROHS3 compliance or REACH documentation, the ADW1203TW is the appropriate selection. For standard RoHS applications, either part is functionally equivalent.

Current inventory shows 777 pieces of ADW1203W and 1255 pieces of ADW1203TW available. Component selection should account for procurement lead times and supply chain requirements in addition to compliance specifications.

Frequently Asked Questions (FAQ)

Q: Are ADW1203W and ADW1203TW electrically interchangeable?

A: Yes. Both parts share identical electrical specifications including coil voltage (3VDC), contact rating (8A), switching voltage (250VAC max), coil current (133 mA), and switching times (15 ms operate and release). They are functionally equivalent for circuit design purposes.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 represents a more recent revision of the RoHS directive with updated substance restrictions. The ADW1203TW meets ROHS3 requirements, while the ADW1203W meets the earlier RoHS standard. For new designs, ROHS3 compliance is recommended where applicable.

Q: Can I use ADW1203TW as a direct replacement for ADW1203W in existing designs?

A: Yes. The ADW1203TW is a direct parametric equivalent with identical mechanical and electrical characteristics. No circuit modifications are required. The part can be substituted without design changes.

Q: Are both parts available in the same packaging?

A: Yes. Both ADW1203W and ADW1203TW are supplied in Tray packaging with identical through-hole PC pin termination.

Q: What certifications apply to both parts?

A: Both parts carry CQC, cURus, and VDE approvals. The ADW1203TW additionally carries REACH Unaffected status.

Q: What is the operating temperature range for these relays?

A: Both parts operate across -40°C to 85°C, suitable for industrial and commercial applications with extended temperature requirements.