H-303C-2-160 LED Holder T1 Equivalent & Substitute Parts

Part Overview

The H-303C-2-160 is a T1 LED standoff holder manufactured by Bivar Inc., designed for right-angle mounting of 3mm LEDs with dual lead configuration. This component features black nylon construction with a 0.475" (12.07mm) length and is classified as obsolete. Due to its obsolete product status, equivalent and substitute parts from active product lines are necessary for ongoing design support and procurement continuity. Substitute parts maintain functional compatibility through matching LED type (T1), color (black), lead configuration (2LD), and mechanical dimensions within acceptable tolerances.

Key Parameters

Parameter	Value
Manufacturer Part Number	H-303C-2-160
Manufacturer	Bivar Inc.
LED Type	T1
Length	0.475" (12.07mm)
Material	Nylon
Color	Black
Lead Configuration	2LD (Dual Lead)
Product Status	Obsolete
Moisture Sensitivity Level	1 (Unlimited)
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution eligibility for the H-303C-2-160 is determined by the following critical parameters:

Primary Compatibility Criteria:

LED Type: T1 (all substitutes must support T1 LED mounting)
Lead Configuration: 2LD (dual lead design)
Color: Black (aesthetic and material consistency)
Length Tolerance: 0.475" ±0.015" (12.07mm ±0.38mm) to maintain mechanical fit in existing PCB layouts

Secondary Compatibility Criteria:

Moisture Sensitivity Level: MSL 1 (Unlimited) or equivalent
ECCN Classification: EAR99 (regulatory consistency)
Material: Nylon or PVC (both acceptable for mechanical properties)

Substitute parts are grouped into two categories:

Category 1 - Direct Series Substitutes (H-203C Series): Parts from the active H-203C series maintain identical functional specifications with variations in length. The H-203C-1 operates at 0.380" (9.65mm), representing a shorter standoff option for applications requiring reduced height.

Category 2 - Parametric Equivalents (ELM 2 Series): Parts from the active ELM 2 series provide T1 LED standoff functionality with PVC material construction instead of nylon. These parts are available in multiple length options (0.455" through 0.490") that bracket the original 0.475" specification, allowing selection based on specific application height requirements.

Parameter Comparison

Part Number	Manufacturer	LED Type	Length (inches)	Length (mm)	Material	Color	Product Status	RoHS Status	MSL
H-303C-2-160	Bivar Inc.	T1	0.475"	12.07mm	Nylon	Black	Obsolete	Vendor Undefined	1
H-203C-1	Bivar Inc.	T1	0.380"	9.65mm	Nylon	Black	Active	ROHS3 Compliant	1
ELM 2-12MM	Bivar Inc.	T1	0.470"	11.94mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-455	Bivar Inc.	T1	0.455"	11.56mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-460	Bivar Inc.	T1	0.460"	11.68mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-465	Bivar Inc.	T1	0.465"	11.81mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-470	Bivar Inc.	T1	0.470"	11.94mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-475	Bivar Inc.	T1	0.475"	12.07mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-480	Bivar Inc.	T1	0.480"	12.19mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-485	Bivar Inc.	T1	0.485"	12.32mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-490	Bivar Inc.	T1	0.490"	12.45mm	PVC	Black	Active	ROHS3 Compliant	1

Engineering Selection Recommendations

For Direct Replacement (Exact Dimension Match):

The ELM 2-475 provides the closest dimensional match to the H-303C-2-160, maintaining the identical 0.475" (12.07mm) length specification. This part is from an active product line with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment. The material change from nylon to PVC does not affect functional compatibility for T1 LED mounting applications.

For Active Product Line Continuity:

All ELM 2 series parts (ELM 2-455 through ELM 2-490) are active products with ROHS3 compliance. Selection among these parts should be based on specific application height requirements. Parts within ±0.015" (±0.38mm) of the original 0.475" specification include ELM 2-460, ELM 2-465, ELM 2-470, ELM 2-475, and ELM 2-480.

For Nylon Material Requirement:

If nylon material is a design requirement, the H-203C-1 is the only active substitute available. This part operates at 0.380" (9.65mm) length and is ROHS3 compliant. Application suitability depends on whether the reduced height accommodates the PCB layout and LED clearance requirements.

Inventory Availability:

All recommended substitute parts maintain active inventory status with quantities exceeding 600 units, ensuring procurement reliability for production and replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the ELM 2-475 directly replace the H-303C-2-160 in existing designs?

A: Yes. The ELM 2-475 matches the critical dimension (0.475" length), LED type (T1), lead configuration (2LD), and color (black). The material change from nylon to PVC does not affect mechanical fit or electrical performance for standard LED mounting applications. Both parts maintain MSL 1 rating and are manufactured by Bivar Inc.

Q: Why are there multiple ELM 2 series options with different lengths?

A: The ELM 2 series provides length options from 0.455" to 0.490" to accommodate various PCB layout requirements and LED clearance specifications. Selection should be based on the specific application's height constraints. The original H-303C-2-160 specification of 0.475" corresponds to ELM 2-475.

Q: Is the H-203C-1 a suitable alternative if nylon material is required?

A: The H-203C-1 is nylon-based and maintains T1 LED compatibility with 2LD configuration. However, its 0.380" (9.65mm) length is significantly shorter than the original 0.475" specification. This part is suitable only if the application can accommodate the reduced standoff height and if PCB layout permits the dimensional change.

Q: What is the difference between nylon and PVC material in these LED holders?

A: Both materials provide adequate mechanical support for T1 LED mounting. Nylon offers slightly higher rigidity, while PVC provides equivalent performance for standard applications. The choice between materials should be based on specific environmental or mechanical requirements of the application. Both materials are black and maintain identical electrical properties.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended ELM 2 series substitutes and the H-203C-1 are ROHS3 compliant. The original H-303C-2-160 has vendor-undefined RoHS status due to its obsolete classification. Active product substitutes ensure compliance with current regulatory requirements.

Q: What is the inventory status of substitute parts?

A: All recommended substitute parts are active products with confirmed inventory. ELM 2 series parts maintain inventory levels between 677 and 1,112 units. The H-203C-1 maintains 1,040 units in stock. Inventory levels support both production and replacement requirements.

Q: Can I use multiple ELM 2 lengths interchangeably in the same design?

A: No. Each length variant (ELM 2-455, ELM 2-460, etc.) is a distinct part number designed for specific height requirements. Interchangeability depends on whether the application can tolerate the dimensional variation. For designs requiring the original 0.475" specification, use ELM 2-475 specifically.

Q: What packaging is available for substitute parts?

A: All substitute parts are supplied in bag packaging, consistent with standard component distribution for LED holder products.

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