Sensata-Crydom D1D12 Solid State Relay SPST-NO 12A DC

Part Overview

The D1D12 is a solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 12A load current and 1V to 100V output voltage range. This hockey puck-style relay operates with 4.6V to 32VDC input and features screw terminal connections. The part is currently active in production with 871 units in stock. Equivalent and substitute parts may be required due to inventory constraints, application-specific voltage or current requirements, or regional compliance considerations.

Substiute Parts

D1D12

Sensata-CrydomIn Stock: 969D1D12 Datasheet

Current PartRFQ

84134860

Sensata-CrydomIn Stock: 118384134860 Datasheet

MFR RecommendedRFQ

84137650N

CrouzetIn Stock: 111484137650N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the D1D12 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPST-NO (1 Form A)
• Output type: DC
• Mounting type: Chassis Mount
• Package type: Hockey Puck
• Termination style: Screw Terminal
• Input voltage range: Must accommodate 4.6 ~ 32VDC
• Load voltage range: Must accommodate 1 V ~ 100 V minimum
• Load current: Must meet or exceed 12A requirement

Identified Substitute Parts:

84134860 (Sensata-Crydom, GN DC Series): Meets all primary compatibility criteria with enhanced current rating (15A) and improved on-state resistance (50 mOhms vs. 130 mOhms). Load voltage range identical (1V ~ 100V). Input voltage range identical (4.6 ~ 32VDC).

84137650N (Crouzet, GNAD Series): Meets all primary compatibility criteria with extended load voltage range (5V ~ 200V) and slightly reduced current rating (10A). Input voltage range compatible (4 ~ 32VDC, overlaps with D1D12 range). Different manufacturer but equivalent form factor and termination.

Parameter Comparison

Engineering Selection Recommendations

84134860 (Sensata-Crydom GN DC Series): This substitute is the primary equivalent for direct replacement. It maintains identical input and load voltage ranges while providing superior performance through higher current capacity (15A vs. 12A) and lower on-state resistance (50 mOhms vs. 130 mOhms). Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating. Selection of this part introduces no compliance risk and provides performance margin for the application.

84137650N (Crouzet GNAD Series): This substitute is suitable for applications requiring extended load voltage capability (up to 200V). The 10A current rating is acceptable only if the application load does not exceed this threshold. The input voltage range (4 ~ 32VDC) is compatible with the D1D12 specification. RoHS compliance is confirmed. Cross-manufacturer substitution requires verification of mechanical fit and terminal compatibility in the specific application context.

Frequently Asked Questions (FAQ)

Q: Can 84134860 be used as a direct replacement for D1D12? A: Yes. The 84134860 maintains identical input voltage (4.6 ~ 32VDC) and load voltage (1V ~ 100V) ranges. The higher current rating (15A) and lower on-state resistance (50 mOhms) provide performance improvement with no functional compromise. Both parts are ROHS3 compliant and share identical mounting and termination specifications.

Q: What is the key difference between D1D12 and 84137650N? A: The 84137650N extends the load voltage range to 5V ~ 200V, making it suitable for higher-voltage applications. However, its 10A current rating is lower than the D1D12's 12A rating. The input voltage minimum is 4VDC (vs. 4.6VDC for D1D12). Selection depends on whether the application requires the extended voltage range and whether 10A current capacity is sufficient.

Q: Are all three parts mechanically interchangeable? A: All three parts share identical package type (Hockey Puck), mounting type (Chassis Mount), and termination style (Screw Terminal). Physical interchangeability is confirmed. However, terminal pin spacing and connector compatibility should be verified in the specific application assembly.

Q: What compliance certifications apply to these substitutes? A: D1D12 and 84134860 are both ROHS3 compliant. The 84137650N is RoHS compliant. All three parts have unlimited moisture sensitivity rating (MSL 1). REACH status differs: D1D12 is REACH Unaffected, 84134860 is REACH Affected, and 84137650N is REACH Unaffected.

Q: Can 84137650N be used if the application requires 12A current? A: No. The 84137650N is rated for maximum 10A load current. Using it in a 12A application exceeds its specification and creates reliability risk. The 84134860 is the appropriate substitute for applications requiring 12A or higher current capacity.