3372-L303 Equivalent & Substitute Parts

Part Overview

The 3372-L303 is a rectangular connector header manufactured by 3M, designed for through-hole, right-angle board-to-board or cable applications. This 60-position, 2-row connector operates across -55°C to 105°C and features shrouded 4-wall construction with gold-plated mating contacts and tin-lead plated posts. The part is currently obsolete, making identification of compatible substitutes essential for ongoing system support and procurement.

Key Parameters

Parameter	Value
Connector Type	Header, Stackable (2)
Contact Type	Male Pin
Number of Positions	60 (2 rows × 30)
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Finish - Mating	Gold
Insulation Material	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled
Operating Temperature	-55°C ~ 105°C
Current Rating	1.75A
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

The 87061-330 manufactured by Amphenol ICC (FCI) qualifies as a substitute based on the following critical parameters:

Connector Type: Both are Header, Stackable (2) configurations
Contact Type: Both feature Male Pin contacts
Number of Positions: Both provide 60 positions in 2-row arrangement
Pitch - Mating: Both maintain 0.100" (2.54mm) pitch
Row Spacing - Mating: Both maintain 0.100" (2.54mm) row spacing
Mounting Type: Both are Through Hole, Right Angle
Shrouding: Both feature Shrouded - 4 Wall construction
Termination: Both use Solder termination
Contact Finish - Mating: Both use Gold plating
Material Flammability Rating: Both meet UL94 V-0
MSL Rating: Both rated at 1 (Unlimited)

These parameters define the mechanical and electrical compatibility envelope for this connector category. The 87061-330 maintains functional equivalence within these constraints.

Parameter Comparison

Parameter	3372-L303 (3M)	87061-330 (Amphenol ICC)
Connector Type	Header, Stackable (2)	Header, Stackable (2)
Contact Type	Male Pin	Male Pin
Number of Positions	60 (2 rows)	60 (2 rows)
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder
Contact Finish - Mating	Gold	Gold, GXT™
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)
Contact Material	Copper Alloy	Phosphor Bronze
Insulation Material	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled	Thermoplastic
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Blue
RoHS Status	RoHS non-compliant	RoHS non-compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active

Engineering Selection Recommendations

The 87061-330 is the designated substitute for the obsolete 3372-L303. Both connectors maintain identical mating pitch, row spacing, position count, and mounting configuration. Both achieve UL94 V-0 flammability certification and carry unlimited moisture sensitivity rating.

The 87061-330 is currently in active production status with confirmed inventory availability (1077 pcs), whereas the 3372-L303 is obsolete. For new designs or system maintenance requiring this connector footprint, the 87061-330 provides direct functional replacement with equivalent electrical and mechanical performance within the specified parameter set.

Both parts carry RoHS non-compliant status and share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications.

Frequently Asked Questions (FAQ)

Q: Can the 87061-330 directly replace the 3372-L303 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.100"), row spacing (0.100"), position count (60), mounting type (through-hole right-angle), shrouding (4-wall), and contact finish specifications (gold plating at 30.0µin thickness). The mechanical and electrical interfaces are equivalent.

Q: What are the differences between these two connectors?

A: The primary differences are contact material (Copper Alloy vs. Phosphor Bronze), insulation material (PCT/Polyester/Glass Filled vs. Thermoplastic), insulation color (Black vs. Blue), and product status (Obsolete vs. Active). These differences do not affect functional compatibility for board-to-board or cable applications within the specified operating parameters.

Q: Are there any thermal or current rating considerations?

A: The 3372-L303 specifies a current rating of 1.75A. The 87061-330 does not provide a current rating in the available data. For applications requiring explicit current rating verification, contact the manufacturer directly.

Q: What is the operating temperature range for the 87061-330?

A: The operating temperature range is not specified in the available data for the 87061-330. The 3372-L303 operates across -55°C to 105°C. For temperature-critical applications, manufacturer specifications should be confirmed.

Q: Are both connectors RoHS compliant?

A: No. Both the 3372-L303 and 87061-330 are RoHS non-compliant. If RoHS compliance is required, alternative connector families must be evaluated.

Q: What is the packaging format for the 87061-330?

A: The 87061-330 is supplied in Bulk packaging, whereas the 3372-L303 packaging format is not specified in the available data.

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