Phoenix Contact 1911033 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1911033 is a 4-position terminal block header with male pins, shrouded design, and 4.6mm pitch for vertical through-hole mounting. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part operates at 8A (IEC) / 8A (UL) and 250V (IEC) / 300V (UL), with press-fit termination and UL94 V-0 flammability rating.

Key Parameters

Parameter	Value
Manufacturer Part Number	1911033
Manufacturer	Phoenix Contact
Category	Terminal Blocks
Number of Positions	4
Pitch	0.138" (4.6mm)
Header Orientation	Vertical
Type	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole
Termination Style	Press-Fit
Current - IEC	8A
Voltage - IEC	250V
Current - UL	8A
Voltage - UL	300V
Material Flammability Rating	UL94 V-0
Housing Material	Polybutylene Terephthalate (PBT)
Contact Mating Finish	Tin
Insulation Height	0.362" (9.20mm)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Position Count & Pitch: All substitutes maintain 4 positions at 0.138" (4.6mm) pitch
Header Type & Orientation: All substitutes are male pin headers with shrouded (4-side) design in vertical orientation
Mounting Method: All substitutes use through-hole mounting
Electrical Ratings: Substitutes must meet or exceed IEC/UL voltage and current specifications
Flammability & Compliance: All substitutes maintain UL94 V-0 rating and ROHS3 compliance

The primary distinction among substitutes is termination style. The original 1911033 uses press-fit termination, while all identified substitutes employ solder termination. This represents a functional change requiring PCB design modification. Additionally, substitute parts from TE Connectivity and Würth Elektronik offer extended operating temperature ranges (-40°C to 110°C or -40°C to 105°C) compared to the original specification.

Parameter Comparison

Parameter	1911033 (Original)	1843622 (Phoenix Contact)	1776130-4 (TE Connectivity)	284514-4 (TE Connectivity)	691321100004 (Würth Elektronik)	796694-4 (TE Connectivity)
Manufacturer	Phoenix Contact	Phoenix Contact	TE Connectivity	TE Connectivity	Würth Elektronik	TE Connectivity
Series	COMBICON EMCV	COMBICON MCV	Buchanan	Buchanan	WR-TBL Series 3211	Termi-Blok, Buchanan
Product Status	Obsolete	Active	Active	Active	Active	Active
Number of Positions	4	4	4	4	4	4
Pitch	0.138" (4.6mm)	0.138" (4.6mm)	0.138" (4.6mm)	0.138" (4.6mm)	0.138" (4.6mm)	0.138" (4.6mm)
Header Orientation	Vertical	Vertical	Vertical	Vertical	Vertical	Vertical
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination Style	Press-Fit	Solder	Solder	Solder	Solder	Solder
Current - UL	8A	8A	11A	11A	10A	11A
Voltage - UL	300V	300V	300V	300V	300V	300V
Operating Temperature	Not specified	Not specified	-40°C ~ 110°C	-40°C ~ 110°C	-40°C ~ 105°C	-40°C ~ 110°C
Color	Green	Green	Black	Green	Green	Blue
Contact Mating Finish	Tin	Tin	Tin	Tin	Tin	Tin
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Housing Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polyamide (PA), Nylon	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Insulation Height	0.362" (9.20mm)	0.362" (9.20mm)	0.362" (9.20mm)	0.362" (9.20mm)	0.362" (9.20mm)	0.362" (9.20mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	1 (Unlimited)

Engineering Selection Recommendations

Phoenix Contact 1843622 is the primary substitute for direct functional replacement. Both parts are from Phoenix Contact's COMBICON family, maintain identical electrical specifications (8A/300V UL), and share the same insulation height and tin contact finish. The 1843622 is active in production with substantial inventory (5,868 units), ensuring long-term availability. The transition from press-fit to solder termination requires PCB redesign but eliminates obsolescence risk.

TE Connectivity 284514-4 offers the highest inventory availability (39,639 units) and active product status. This part exceeds the original electrical specifications with 11A UL current rating and provides extended operating temperature range (-40°C to 110°C). Housing material transitions from PBT to polyamide PA66, and contact material changes from unspecified to phosphor bronze. These material changes are within acceptable substitution parameters for the terminal block category.

TE Connectivity 1776130-4 and 796694-4 provide equivalent electrical performance (11A/300V UL) with extended temperature ranges. Both use polyamide PA66 housing and phosphor bronze contacts. The 1776130-4 is available in black housing, while 796694-4 uses blue housing. Both maintain ROHS3 compliance and UL94 V-0 flammability rating.

Würth Elektronik 691321100004 operates at 10A UL with -40°C to 105°C temperature range. This part uses brass contacts and polyamide PA66 housing. Inventory is moderate (1,159 units), and the part maintains active status with ROHS3 compliance.

All substitutes require PCB modification due to solder termination versus the original press-fit design. Selection should prioritize inventory availability, long-term product status, and thermal operating range requirements for the specific application.

Frequently Asked Questions (FAQ)

Q: Can I use a solder-termination substitute in place of the press-fit original?

A: No direct board-level substitution is possible without PCB redesign. Press-fit termination uses through-hole pads with specific hole sizing and plating, while solder termination requires standard through-hole pads. The footprint and assembly process differ fundamentally.

Q: Are all substitutes electrically equivalent to the 1911033?

A: All substitutes meet or exceed the original electrical specifications. The 1911033 operates at 8A (IEC) / 8A (UL) and 250V (IEC) / 300V (UL). Substitutes from TE Connectivity and Würth Elektronik provide higher current ratings (10-11A UL), making them suitable for applications within the original specifications.

Q: What is the impact of housing material change from PBT to polyamide?

A: Both materials maintain UL94 V-0 flammability rating and are standard for terminal block applications. Polyamide PA66 offers extended operating temperature range (-40°C to 110°C) compared to the unspecified range of the original PBT part. Material selection should align with application thermal requirements.

Q: Does the contact material change affect compatibility?

A: The original 1911033 does not specify contact material. Substitutes use phosphor bronze or brass, both standard materials for tin-plated terminal block contacts. These materials are functionally equivalent for the specified electrical ratings and mating applications.

Q: Which substitute offers the best long-term availability?

A: TE Connectivity 284514-4 has the highest inventory (39,639 units) and active product status, providing the strongest supply chain assurance. Phoenix Contact 1843622 offers the closest functional match within the same manufacturer family with 5,868 units in stock.

Q: Are there differences in shroud design among substitutes?

A: All substitutes maintain 4-side shrouded design with identical insulation height (0.362" / 9.20mm). Shroud geometry is consistent across all parts, ensuring mechanical compatibility with mating connectors.

Q: What compliance certifications apply to all substitutes?

A: All substitutes maintain ROHS3 compliance and UL94 V-0 flammability rating. Most are REACH compliant or unaffected. Specific REACH status varies by manufacturer and should be confirmed for regulated applications.

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