Phoenix Contact 1897908 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1897908 is a 12-position terminal block header with male pins, shrouded on four sides, featuring 0.150" (3.81mm) pitch and 90° right-angle through-hole mounting. This component is part of the COMBICON EMC series and is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts is essential for ongoing system maintenance, repairs, and new designs requiring compatible interconnection solutions.

Key Parameters

Parameter	Value
Manufacturer Part Number	1897908
Manufacturer	Phoenix Contact
Category	Terminal Blocks
Number of Positions	12
Pitch	0.150" (3.81mm)
Header Orientation	90°, Right Angle
Type	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole
Current - IEC	8A
Voltage - IEC	250 V
Current - UL	8 A
Voltage - UL	300 V
Housing Material	Polybutylene Terephthalate (PBT)
Material Flammability Rating	UL94 V-0
Contact Mating Finish	Tin
RoHS Status	RoHS Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1897908 is determined by strict alignment of the following critical parameters:

Position Count & Pitch: 12 positions at 0.150" (3.81mm) spacing
Connector Type & Configuration: Male pins, shrouded on four sides
Mounting Orientation: 90° right-angle through-hole
Electrical Ratings: 8A (IEC/UL), 250V (IEC), 300V (UL)
Housing Material & Flammability: PBT with UL94 V-0 rating
Contact Finish: Tin plating

The substitute part Phoenix Contact 1803374 meets all these critical parameters. The primary difference lies in the termination style (solder vs. press-fit) and minor dimensional variations in contact tail length and insulation height, which do not affect functional compatibility in applications designed for the original part.

Parameter Comparison

Parameter	1897908 (Main Part)	1803374 (Substitute)
Manufacturer	Phoenix Contact	Phoenix Contact
Series	COMBICON EMC	COMBICON MC
Number of Positions	12	12
Pitch	0.150" (3.81mm)	0.150" (3.81mm)
Header Orientation	90°, Right Angle	90°, Right Angle
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole	Through Hole
Termination Style	Press-Fit	Solder
Current - IEC	8A	8A
Voltage - IEC	250 V	250 V
Current - UL	8 A	8 A
Voltage - UL	300 V	300 V
Housing Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Material Flammability Rating	UL94 V-0	UL94 V-0
Contact Mating Finish	Tin	Tin
Contact Tail Length	0.138" (4.60mm)	0.134" (3.40mm)
Insulation Height	0.276" (7.00mm)	0.285" (7.25mm)
RoHS Status	RoHS Compliant	ROHS3 Compliant
Product Status	Obsolete	Active

Engineering Selection Recommendations

The Phoenix Contact 1803374 is the qualified substitute for the obsolete 1897908. Selection rationale is based on the following engineering factors:

Product Status & Availability: The 1897908 is obsolete, making the 1803374 the active-production equivalent. The 1803374 maintains full electrical and mechanical compatibility while offering current manufacturing support and supply chain continuity.

Compliance & Certifications: Both parts are RoHS compliant. The 1803374 carries ROHS3 compliance, representing current regulatory alignment. Both maintain UL94 V-0 flammability ratings and identical electrical specifications (8A/250V IEC, 8A/300V UL).

Termination Consideration: The primary design difference is termination method—press-fit (1897908) versus solder (1803374). This distinction requires PCB design verification to confirm pad compatibility and assembly process alignment. Both termination methods are standard in industrial terminal block applications and do not affect electrical performance when properly implemented.

Dimensional Tolerance: Minor variations in contact tail length (0.138" vs. 0.134") and insulation height (0.276" vs. 0.285") fall within acceptable mechanical tolerances for through-hole mounting and do not compromise functional interchangeability in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the 1803374 directly replace the 1897908 in existing designs?

A: Electrical and mechanical compatibility is confirmed across all critical parameters. However, the termination method difference (press-fit vs. solder) requires verification that the PCB footprint and assembly process accommodate solder termination. Consult PCB design documentation and assembly specifications before implementation.

Q: What is the significance of the series designation change (COMBICON EMC to COMBICON MC)?

A: The series designation reflects product line evolution within Phoenix Contact's terminal block portfolio. Both series maintain identical electrical ratings, housing materials, and flammability standards. The change represents a transition from an obsolete to an active product line.

Q: Are there any compliance differences between the two parts?

A: Both parts meet RoHS requirements. The 1803374 carries ROHS3 compliance, which represents current regulatory standards. Both maintain UL94 V-0 flammability certification and identical IEC/UL electrical ratings.

Q: What is the impact of the dimensional differences in contact tail length and insulation height?

A: The variations (contact tail: 0.138" vs. 0.134"; insulation height: 0.276" vs. 0.285") are within standard manufacturing tolerances for through-hole terminal blocks. These differences do not affect electrical performance or standard PCB mounting applications.

Q: Is the 1803374 available in the same packaging as the 1897908?

A: The 1803374 is supplied in bulk packaging, whereas the 1897908 packaging specification was not provided. Confirm packaging requirements with your procurement or supply chain department to ensure compatibility with your assembly and inventory processes.

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