ELM 3-505 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 3-505 is a T1 3/4 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a 0.505" (12.83mm) length. This component features a black PVC construction and accommodates standard T1 3/4 LED packages. The part maintains Active product status and is ROHS3 compliant, making it suitable for current production environments. Equivalent and substitute parts are identified when dimensional, electrical, and material specifications align within acceptable tolerances for LED mounting applications, or when alternative materials provide equivalent functional performance.

Substiute Parts

ELM 3-505

Bivar Inc.In Stock: 1191ELM 3-505 Datasheet

Current PartRFQ

ELM 1-13MM

Bivar Inc.In Stock: 20832ELM 1-13MM Datasheet

Parametric EquivalentRFQ

ELM 3-500

Bivar Inc.In Stock: 32512ELM 3-500 Datasheet

Parametric EquivalentRFQ

H-278C-2

Bivar Inc.In Stock: 1462H-278C-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELM 3-505 are qualified based on the following critical parameters:

Primary Substitution Criteria:

• LED Type: T1 3/4 (all substitutes maintain this specification)
• Color: Black (all substitutes maintain this specification)
• Length Tolerance: Parts with lengths between 0.500" (12.70mm) and 0.510" (12.95mm) are functionally equivalent for standard mounting applications
• Material Compatibility: Both PVC and Nylon materials are acceptable for LED standoff applications
• RoHS Compliance: All substitutes maintain ROHS3 compliance
• Moisture Sensitivity: MSL 1 or Not Applicable ratings are acceptable

Substitute Classification:

Group 1 - Same Series (ELM 3):

• ELM 3-500: Identical series with 0.005" shorter length (0.500" vs 0.505")

Group 2 - Alternative Series (ELM 1):

• ELM 1-13MM: Different series with 0.005" longer length (0.510" vs 0.505")

Group 3 - Alternative Material (Nylon):

• H-278C-2: Different series and material (Nylon vs PVC) with 0.005" shorter length (0.500" vs 0.505")

Parameter Comparison

Engineering Selection Recommendations

ELM 3-500 Selection: Select ELM 3-500 when the application permits a 0.005" (0.13mm) reduction in standoff length. This part maintains identical series designation, material composition (PVC), and all compliance certifications. Inventory availability is significantly higher (32,418 pcs vs 1,083 pcs), making this the preferred substitute when dimensional tolerance permits.

ELM 1-13MM Selection: Select ELM 1-13MM when the application requires a 0.005" (0.13mm) increase in standoff length. This part maintains PVC material composition and all compliance certifications but operates under a different series designation. Inventory availability is substantially higher (20,735 pcs), supporting production continuity.

H-278C-2 Selection: Select H-278C-2 when material substitution from PVC to Nylon is acceptable and a 0.005" (0.13mm) reduction in standoff length is compatible with the application. This part maintains all compliance certifications and offers an alternative material option. Moisture Sensitivity Level is Not Applicable for Nylon construction.

All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: What is the maximum allowable length variation between ELM 3-505 and its substitutes?

A: The substitute parts range from 0.500" to 0.510" in length, representing a total variation of ±0.005" (±0.13mm) from the nominal ELM 3-505 specification of 0.505". This tolerance range is standard for LED standoff applications where mounting clearance and component height are non-critical parameters.

Q: Can ELM 3-500 be used as a direct replacement for ELM 3-505?

A: ELM 3-500 is functionally equivalent when the application tolerates a 0.005" shorter standoff height. Both parts share identical series designation (ELM 3), material (PVC), LED type (T1 3/4), color (Black), and compliance certifications. Dimensional compatibility must be verified against specific PCB layout requirements.

Q: What is the difference between PVC and Nylon materials in LED standoff applications?

A: Both PVC and Nylon are acceptable materials for LED standoff construction. PVC (used in ELM 3-505, ELM 3-500, and ELM 1-13MM) carries Moisture Sensitivity Level 1. Nylon (used in H-278C-2) is classified as Not Applicable for MSL, indicating different moisture absorption characteristics. Material selection depends on environmental exposure and thermal requirements of the specific application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ELM 3-505, ELM 3-500, ELM 1-13MM, and H-278C-2 are all ROHS3 compliant, meeting current regulatory requirements for restricted substances in electrical and electronic equipment.

Q: What inventory considerations should influence substitute part selection?

A: ELM 3-500 maintains the highest inventory level (32,418 pcs), followed by ELM 1-13MM (20,735 pcs), H-278C-2 (1,446 pcs), and ELM 3-505 (1,083 pcs). For production continuity and lead time optimization, ELM 3-500 or ELM 1-13MM are preferred when dimensional specifications permit their use.

Q: Can ELM 1-13MM be used in applications originally designed for ELM 3-505?

A: ELM 1-13MM is functionally equivalent when the application tolerates a 0.005" longer standoff height. Both parts maintain T1 3/4 LED type, PVC material, Black color, and ROHS3 compliance. The different series designation (ELM 1 vs ELM 3) reflects manufacturing line differences but does not affect functional performance in standard LED mounting applications.