T1 LED Standoff 51 0421 - Equivalent & Substitute Parts

Part Overview

The 51 0421 is a T1 LED standoff manufactured by Industrial Fiber Optics, designed for vertical mounting applications. This component is a black nylon spacer measuring 0.490" (12.45mm) in length, supplied in bulk packaging of 500 pieces per package. The part maintains Active product status and is fully compliant with RoHS3 and REACH regulations. Substitute parts are identified when equivalent mechanical and electrical parameters are required due to inventory constraints, application-specific packaging needs, or material preference variations.

Substiute Parts

51 0421

Industrial Fiber OpticsIn Stock: 82251 0421 Datasheet

Current PartRFQ

51 0420

Industrial Fiber OpticsIn Stock: 114251 0420 Datasheet

Parametric EquivalentRFQ

LEDM-2-13

Essentra ComponentsIn Stock: 3000LEDM-2-13 Datasheet

Parametric EquivalentRFQ

LEDS1-8-26

Essentra ComponentsIn Stock: 2455LEDS1-8-26 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 51 0421 is determined by the following critical parameters: LED type (T1), color (Black), mounting orientation (Vertical), and regulatory compliance status (RoHS3/REACH). Length tolerance and material composition (Nylon vs. PVC) represent secondary considerations that permit substitution when primary parameters align.

The identified substitute parts maintain T1 LED compatibility and black color specification. Variations in length (0.512" and 0.500") and material composition (PVC and flexible PVC) fall within acceptable substitution criteria for this product category, as these parameters do not compromise the core mounting function or electrical performance of T1 LED applications.

Parameter Comparison

Engineering Selection Recommendations

The 51 0420 represents the primary equivalent substitute, maintaining identical specifications across all critical parameters including length, material composition (Nylon), and RoHS3 compliance status. This part is recommended when inventory of the 51 0421 is unavailable and packaging format (Bulk) is acceptable.

The LEDM-2-13 and LEDS1-8-26 are parametric equivalents suitable for T1 LED standoff applications. Both parts maintain T1 LED type compatibility, black color specification, and regulatory compliance. The LEDM-2-13 offers a length of 0.512" (13.00mm) with PVC material composition. The LEDS1-8-26 provides a length of 0.500" (12.70mm) with flexible PVC material. Selection between these alternatives depends on application-specific length requirements and material performance characteristics within the specified tolerance range.

All substitute parts maintain Active product status and full regulatory compliance, supporting direct component selection without additional verification requirements.

Frequently Asked Questions (FAQ)

Q: Can the 51 0420 be used as a direct replacement for the 51 0421?

A: Yes. Both parts are manufactured by Industrial Fiber Optics with identical specifications: T1 LED type, 0.490" (12.45mm) length, black nylon material, and RoHS3 compliance. The 51 0420 is available in Bulk packaging format.

Q: What is the difference between the 51 0421 and LEDM-2-13?

A: The primary difference is length and material. The 51 0421 measures 0.490" (12.45mm) in nylon material, while the LEDM-2-13 measures 0.512" (13.00mm) in PVC material. Both maintain T1 LED compatibility and regulatory compliance. Length variation of 0.022" (0.55mm) may be acceptable depending on application clearance requirements.

Q: Is the LEDS1-8-26 suitable for applications requiring rigid standoff performance?

A: The LEDS1-8-26 features flexible PVC material composition, which differs from the rigid nylon construction of the 51 0421. This part is suitable for applications where material flexibility is beneficial. Rigid performance requirements should be addressed with the 51 0421, 51 0420, or LEDM-2-13.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts (51 0420, LEDM-2-13, LEDS1-8-26) maintain RoHS compliance status and REACH Unaffected designation, meeting regulatory requirements equivalent to the 51 0421.

Q: What packaging formats are available for these T1 LED standoffs?

A: The 51 0421 is supplied in standard packaging of 500 pieces per package. The 51 0420, LEDM-2-13, and LEDS1-8-26 are available in Bulk packaging format. Packaging selection should align with production volume and inventory management requirements.