Equivalent & Substitute Parts: D1D20L

Part Overview

The D1D20L is a solid-state relay (SSR) manufactured by Sensata-Crydom, configured as a single-pole, single-throw normally open (SPST-NO) device with a 20A load capacity and 0-100V output range. This component operates with a 3.5-32VDC input and features a hockey puck form factor with screw terminal connections. The D1D20L is designated as Last Time Buy, indicating discontinued production status. Equivalent and substitute parts are necessary to maintain system functionality and ensure continued availability for new designs and field replacements.

Substiute Parts

D1D20L

Sensata-CrydomIn Stock: 898D1D20L Datasheet

Current PartRFQ

D1D20

Sensata-CrydomIn Stock: 1152D1D20 Datasheet

DirectRFQ

84137660N

CrouzetIn Stock: 78584137660N Datasheet

MFR RecommendedRFQ

ASR-SJ100D20W-L

Altran Magnetics, LLCIn Stock: 843ASR-SJ100D20W-L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by electrical and mechanical parameter compatibility. All substitute parts must maintain the following core specifications:

• Circuit configuration: SPST-NO (1 Form A)
• Output type: DC
• Load current: 20 A
• Package form factor: Hockey Puck
• Termination: Screw Terminal
• Mounting: Chassis Mount

Acceptable variations within substitute parts include input voltage ranges that encompass or remain within the operational envelope, and load voltage ranges that do not exceed the maximum specification of 100V. On-state resistance and compliance certifications are secondary selection criteria when primary electrical parameters align.

Parameter Comparison

Engineering Selection Recommendations

D1D20 (Sensata-Crydom): This part is the direct equivalent to the D1D20L, differing only in series designation (1-DC versus 1-DCL). The D1D20 maintains identical electrical specifications and is currently in Active product status, making it the primary replacement for discontinued D1D20L units. Both parts carry ROHS3 compliance and REACH Unaffected certification.

84137660N (Crouzet): This substitute operates within compatible electrical parameters with input voltage range of 4-32VDC and load voltage range of 5-100V. The minimum load voltage specification of 5V represents a constraint not present in the D1D20L (0V minimum). This part is Active status and RoHS Compliant. Selection of this part requires verification that system load voltage does not fall below 5V.

ASR-SJ100D20W-L (Altran Magnetics, LLC): This substitute maintains full electrical compatibility with the D1D20L, including input voltage range of 4-32VDC and load voltage range of 0-100V. The part is Active status and ROHS3 Compliant. Moisture Sensitivity Level is listed as Not Applicable, differing from the MSL-1 specification of other parts in this group.

Frequently Asked Questions (FAQ)

Q: Can D1D20 be used as a direct replacement for D1D20L? A: Yes. The D1D20 is electrically and mechanically identical to the D1D20L. The series designation change (1-DC versus 1-DCL) reflects manufacturing updates. Both parts share identical electrical specifications, package form factor, and termination style.

Q: What is the key difference between 84137660N and the other substitutes? A: The 84137660N specifies a minimum load voltage of 5V, whereas the D1D20L, D1D20, and ASR-SJ100D20W-L all support 0V minimum load voltage. Applications requiring operation at load voltages below 5V must use D1D20, D1D20L, or ASR-SJ100D20W-L.

Q: Are all substitute parts RoHS compliant? A: Yes. D1D20 and ASR-SJ100D20W-L are ROHS3 Compliant. The 84137660N is RoHS Compliant. All parts meet REACH Unaffected status.

Q: Do input voltage ranges differ significantly between substitutes? A: The D1D20L and D1D20 specify 3.5-32VDC input range. The 84137660N and ASR-SJ100D20W-L specify 4-32VDC input range. Applications requiring operation below 3.5V input must use D1D20L or D1D20.

Q: What is the significance of the hockey puck package form factor? A: The hockey puck package is a standardized industrial form factor for solid-state relays with chassis mount configuration and screw terminal connections. All substitute parts maintain this package specification, ensuring mechanical compatibility with existing mounting hardware and terminal connections.

Q: Can on-state resistance be used as a selection criterion? A: The D1D20L and D1D20 specify maximum on-state resistance of 100 mOhms. The 84137660N and ASR-SJ100D20W-L do not provide on-state resistance specifications. When on-state resistance is a critical design parameter, D1D20 or D1D20L must be selected.