H-303C-2-140 LED Holder T1 Equivalent & Substitute Parts

Part Overview

The H-303C-2-140 is a T1 LED standoff holder manufactured by Bivar Inc., designed for right-angle mounting of 3mm LEDs with dual leads. This component features black nylon construction with a 0.455" (11.56mm) standoff length. The part is currently classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs.

Key Parameters

Parameter	Value
Manufacturer Part Number	H-303C-2-140
Manufacturer	Bivar Inc.
LED Type	T1
Standoff Length	0.455" (11.56mm)
Material	Nylon
Color	Black
Lead Configuration	2LD (Dual Lead)
Mounting Style	Right Angle (RA)
Product Status	Obsolete
Moisture Sensitivity Level	1 (Unlimited)
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution of the H-303C-2-140 is determined by the following critical parameters:

Primary Compatibility Criteria:

LED Type: T1 (all substitutes must support T1 LEDs)
Lead Configuration: 2LD (dual lead)
Mounting Style: Right angle orientation
Color: Black
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Consideration:

Standoff Length: The main part specifies 0.455" (11.56mm). Substitute parts are grouped by length tolerance, with active equivalents available in lengths ranging from 0.435" to 0.470".

Material Variation: Substitute parts are available in both nylon (original material) and PVC. Both materials meet the same electrical and mechanical requirements for T1 LED holder applications.

Product Status Priority: The H-303C-2-140 is obsolete. All listed substitutes are active products with current manufacturing status and RoHS3 compliance, ensuring long-term availability and regulatory alignment.

Parameter Comparison

Part Number	Manufacturer	LED Type	Length (inches)	Length (mm)	Material	Color	Product Status	RoHS Status	MSL
H-303C-2-140	Bivar Inc.	T1	0.455"	11.56mm	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 2-435	Bivar Inc.	T1	0.435"	11.05mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-440	Bivar Inc.	T1	0.440"	11.18mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-445	Bivar Inc.	T1	0.445"	11.30mm	PVC	Black	Active	ROHS3 Compliant	1
ELM 2-450	Bivar Inc.	T1	0.450"	11.43mm	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

Engineering Selection Recommendations

Direct Length Match: ELM 2-455 provides an exact standoff length match at 0.455" (11.56mm) to the H-303C-2-140. This part is active, RoHS3 compliant, and manufactured by Bivar Inc. The material difference (PVC versus nylon) does not affect functional compatibility for T1 LED holder applications.

Length-Proximate Alternatives: For applications where standoff length tolerance permits variation within ±0.010" (±0.25mm), the following parts are suitable:

ELM 2-450 (0.450" / 11.43mm)
ELM 2-460 (0.460" / 11.68mm)

All ELM 2-series parts are active products with RoHS3 compliance, ensuring regulatory alignment and supply chain continuity.

Nylon Material Requirement: If nylon material is mandatory for the application, H-203C-1 is the only active nylon substitute available. This part features a shorter standoff length of 0.380" (9.65mm) and is suitable only for applications where this dimension is acceptable.

Regulatory Compliance: All recommended substitutes carry RoHS3 compliance certification, whereas the original H-303C-2-140 has undefined ROHS status. This represents an improvement in regulatory alignment for new designs and procurement.

Frequently Asked Questions (FAQ)

Q: Can ELM 2-455 directly replace H-303C-2-140 in existing designs?

A: Yes. ELM 2-455 matches the critical parameters: T1 LED type, dual-lead configuration, right-angle mounting, black color, and identical standoff length of 0.455" (11.56mm). The material change from nylon to PVC does not affect mechanical or electrical compatibility for LED holder applications.

Q: What is the significance of the standoff length parameter?

A: Standoff length determines the vertical distance between the PCB surface and the LED component. The H-303C-2-140 specifies 0.455" (11.56mm). Substitutes with different lengths alter this clearance. Selection must account for PCB layout, component density, and thermal management requirements.

Q: Are PVC and nylon materials interchangeable for this application?

A: Both materials are black, non-conductive, and rated MSL 1 (Unlimited). For standard T1 LED holder applications, both materials provide equivalent mechanical and electrical performance. Material selection depends on specific application requirements such as temperature range, chemical exposure, or mechanical stress.

Q: Why is H-203C-1 not recommended as a primary substitute?

A: H-203C-1 has a standoff length of 0.380" (9.65mm), which is 0.075" (1.91mm) shorter than the H-303C-2-140. This significant dimensional difference makes it suitable only for applications where the reduced height is acceptable or required.

Q: What does RoHS3 compliance mean for component selection?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting lead, cadmium, mercury, and other hazardous materials. All active ELM 2-series substitutes carry this certification, whereas the obsolete H-303C-2-140 has undefined ROHS status. For new designs and regulated markets, RoHS3 compliance is mandatory.

Q: Are there inventory considerations for substitute selection?

A: All listed substitutes are in stock with quantities ranging from 677 to 1112 pieces. ELM 2-455 (exact length match) has 1009 pieces available. Inventory levels support both prototype and production-volume requirements.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture control requirements. Both the original part and all substitutes carry this rating, eliminating moisture-related handling constraints during storage and assembly.

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