Equivalent & Substitute Parts for 55499-5003LF

Part Overview

The Amphenol ICC 55499-5003LF is a 36-position backplane connector header with male pins for through-hole PCB mounting. This high-speed connector is part of the Metral® 2000 series and features press-fit termination with gold contact finish. The part is currently active in production with 1018 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part's specifications, enabling direct functional replacement in applications where the connector footprint and electrical characteristics remain compatible.

Key Parameters

Parameter	55499-5003LF
Manufacturer	Amphenol ICC (FCI)
Connector Type	Header, Male Pins
Number of Positions	36
Pitch	0.079" (2.00mm)
Number of Rows	5
Mounting Type	Through Hole
Termination	Press-Fit
Contact Finish	Gold or Gold, GXT™
Material Flammability Rating	UL94 V-0
Operating Temperature	-55°C ~ 105°C
Current Rating	1A
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)
ECCN	EAR99

Substitute Part Grouping Explanation

Substitute parts for the 55499-5003LF are identified based on the following critical parameters that determine functional equivalence:

Pitch (2.00mm): All substitute parts maintain identical 2.00mm pitch spacing, ensuring PCB footprint compatibility
Mounting Type (Through Hole): All substitutes use through-hole mounting, compatible with the same PCB design
Termination (Press-Fit): All substitutes employ press-fit termination, maintaining assembly process compatibility
Number of Rows (5): All substitutes maintain 5-row configuration for connector geometry alignment
Contact Finish (Gold): All substitutes feature gold plating for electrical performance and corrosion resistance
Material Flammability (UL94 V-0): All substitutes meet the same flammability standard
Moisture Sensitivity Level (1): All substitutes carry MSL 1 rating, indicating no moisture sensitivity restrictions
ECCN (EAR99): All substitutes share identical export classification

The substitute parts differ in position count (30 vs. 36 positions) and connector style (Futurebus vs. High Speed), which may require application-level evaluation for specific use cases.

Parameter Comparison

Parameter	55499-5003LF	5223002-1	5223011-1	5223016-1
Manufacturer	Amphenol ICC (FCI)	TE Connectivity AMP	TE Connectivity AMP	TE Connectivity AMP
Connector Type	Header, Male Pins	Header, Male Pins	Header, Male Pins	Header, Male Pins
Number of Positions	36	30	30	30
Pitch	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	5	5	5	5
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Press-Fit	Press-Fit	Press-Fit	Press-Fit
Contact Finish	Gold or Gold, GXT™	Gold	Gold	Gold
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99	EAR99
Voltage Rating	Not specified	30V	30V	30V
Series	Metral® 2000	Z-PACK	Z-PACK	Z-PACK
Product Status	Active	Active	Active	Active
Inventory	1018 Pcs	652 Pcs	1104 Pcs	2407 Pcs

Engineering Selection Recommendations

All three substitute parts (5223002-1, 5223011-1, 5223016-1) maintain active product status and meet the same core compliance requirements as the 55499-5003LF. The substitute parts offer extended operating temperature range (-55°C ~ 125°C vs. -55°C ~ 105°C) and carry ROHS3 compliance certification for 5223011-1 and 5223016-1, providing enhanced regulatory alignment for new designs.

The primary distinction between the main part and substitutes is the position count: the 55499-5003LF provides 36 positions while all substitutes provide 30 positions. This difference requires application-level assessment to determine compatibility with existing PCB layouts and signal routing requirements.

All parts share identical pitch, row configuration, mounting type, and termination method, ensuring mechanical and assembly compatibility when position count is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can the 30-position substitute parts directly replace the 36-position 55499-5003LF?

A: Direct replacement depends on application requirements. The substitute parts maintain identical pitch (2.00mm), row count (5), mounting type (through hole), and termination method (press-fit). However, the reduction from 36 to 30 positions requires verification that the application does not require all 36 signal or ground connections.

Q: What are the key mechanical compatibility factors?

A: Mechanical compatibility is ensured through matching pitch (0.079" / 2.00mm), number of rows (5), mounting type (through hole), and termination method (press-fit). These parameters determine PCB footprint alignment and assembly process compatibility.

Q: Do the substitute parts meet the same compliance standards?

A: All substitute parts meet UL94 V-0 flammability rating, MSL 1 moisture sensitivity level, and EAR99 export classification. The 5223011-1 and 5223016-1 carry ROHS3 certification, while 5223002-1 carries RoHS Compliant status. All parts are active products with current manufacturing support.

Q: What is the difference in operating temperature range?

A: The 55499-5003LF operates from -55°C to 105°C, while all substitute parts operate from -55°C to 125°C. The extended upper temperature limit in substitute parts provides additional thermal margin for applications requiring higher operating temperatures.

Q: Are there differences in contact finish specifications?

A: The 55499-5003LF specifies gold or gold GXT™ finish with 50.0µin (1.27µm) thickness. The substitute parts specify gold finish without thickness specification. Both finishes provide equivalent electrical performance and corrosion resistance for standard applications.

Q: What inventory levels are available for each part?

A: Current inventory includes 1018 units of 55499-5003LF, 652 units of 5223002-1, 1104 units of 5223011-1, and 2407 units of 5223016-1. Inventory levels should be verified for production requirements and lead time considerations.

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