A-CCS32-G PLCC 32-Position Socket Equivalent & Substitute Parts

Part Overview

The A-CCS32-G is a 32-position PLCC socket manufactured by Assmann WSW Components, designed for through-hole mounting applications requiring gold-plated contacts. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The socket accommodates 2 x 7 and 2 x 9 pin configurations with 0.050" (1.27mm) mating pitch and 0.100" (2.54mm) post pitch, suitable for PLCC integrated circuit packages.

Key Parameters

Parameter	Value
Type	PLCC Socket
Number of Positions	32 (2 x 7, 2 x 9)
Pitch - Mating	0.050" (1.27mm)
Pitch - Post	0.100" (2.54mm)
Mounting Type	Through Hole
Features	Closed Frame
Termination	Solder
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1 A
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the A-CCS32-G is determined by strict equivalence in the following critical parameters:

Pin Configuration: 32 positions in 2 x 7, 2 x 9 arrangement
Pitch Specifications: 0.050" (1.27mm) mating pitch and 0.100" (2.54mm) post pitch
Mounting Method: Through-hole solder termination
Socket Type: PLCC closed-frame design
Electrical Performance: 1 A current rating and contact resistance within acceptable range
Environmental Compliance: UL94 V-0 flammability rating and MSL 1 classification

Substitute parts identified are A-CCS 032-G-T (Assmann WSW Components), 54020-32030LF (Amphenol ICC/FCI), and 8432-11B1-RK-TP (3M). These parts maintain dimensional and functional compatibility while differing in contact finish material, housing composition, and regulatory compliance status.

Parameter Comparison

Parameter	A-CCS32-G	A-CCS 032-G-T	54020-32030LF	8432-11B1-RK-TP
Manufacturer	Assmann WSW Components	Assmann WSW Components	Amphenol ICC (FCI)	3M
Product Status	Obsolete	Active	Active	Active
Type	PLCC	PLCC	PLCC	PLCC
Number of Positions	32 (2 x 7, 2 x 9)	32 (2 x 7, 2 x 9)	32 (2 x 7, 2 x 9)	32 (2 x 7, 2 x 9)
Pitch - Mating	0.050" (1.27mm)	0.050" (1.27mm)	0.050" (1.27mm)	0.050" (1.27mm)
Contact Finish - Mating	Gold	Gold	Tin	Tin
Contact Material - Mating	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Copper Alloy
Pitch - Post	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish - Post	Gold	Gold	Tin	Tin
Contact Material - Post	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Copper Alloy
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Features	Closed Frame	Closed Frame	Closed Frame	Closed Frame
Termination	Solder	Solder	Solder	Solder
Operating Temperature	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Termination Post Length	0.130" (3.30mm)	0.132" (3.35mm)	0.126" (3.20mm)	0.132" (3.35mm)
Current Rating	1 A	1 A	1 A	1 A
Contact Resistance	30mOhm	15mOhm	20mOhm	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	Non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Affected	REACH Unaffected

Engineering Selection Recommendations

A-CCS 032-G-T is the primary direct substitute for the A-CCS32-G. Both parts are manufactured by Assmann WSW Components and maintain identical contact finish specifications (gold-plated phosphor bronze). The A-CCS 032-G-T is currently in active production status with higher inventory availability. This part exhibits improved contact resistance (15mOhm versus 30mOhm) and achieves ROHS3 compliance, addressing regulatory requirements for new designs. The operating temperature range is reduced to -40°C ~ 105°C, which remains suitable for most industrial and commercial applications.

54020-32030LF (Amphenol ICC/FCI) and 8432-11B1-RK-TP (3M) are functional equivalents with tin-plated copper alloy contacts replacing the gold-plated phosphor bronze specification. Both parts maintain the 32-position PLCC configuration, through-hole mounting, and closed-frame design. These alternatives are suitable for applications where contact finish material substitution is acceptable. The 54020-32030LF carries RoHS compliance and REACH-affected status. The 8432-11B1-RK-TP is ROHS3 compliant with REACH-unaffected status and represents the 3M 8400 series offering.

Selection between gold-plated and tin-plated alternatives depends on application-specific requirements for contact corrosion resistance, signal integrity, and regulatory compliance. All substitute parts maintain electrical performance specifications and environmental ratings equivalent to the original A-CCS32-G.

Frequently Asked Questions (FAQ)

Q: Can the A-CCS 032-G-T directly replace the A-CCS32-G without PCB redesign?

A: Yes. The A-CCS 032-G-T maintains identical pin pitch (0.050" mating, 0.100" post), 32-position configuration, and through-hole solder termination. Post length variation (0.132" versus 0.130") is within standard PCB tolerance ranges and does not require layout modification.

Q: What is the functional difference between gold-plated and tin-plated contact finishes?

A: Gold plating provides superior corrosion resistance and lower contact resistance degradation over extended service life. Tin plating is cost-effective and suitable for standard industrial applications with adequate environmental protection. Contact resistance specifications (15-20mOhm for tin versus 30mOhm for gold in the original) indicate improved performance in tin-plated alternatives.

Q: Are the 54020-32030LF and 8432-11B1-RK-TP interchangeable with the A-CCS32-G?

A: Both parts are mechanically and electrically compatible with the A-CCS32-G. The primary difference is contact finish material (tin versus gold) and housing composition. Substitution is valid for applications where contact finish material change is acceptable and does not conflict with design specifications or environmental requirements.

Q: What is the significance of the operating temperature range difference (-55°C versus -40°C minimum)?

A: The A-CCS32-G specifies -55°C minimum operating temperature, while all substitute parts specify -40°C minimum. For applications requiring operation below -40°C, the original A-CCS32-G specification must be maintained. For standard industrial temperature ranges (-40°C to +105°C), all substitute parts are suitable.

Q: How do RoHS and REACH compliance statuses affect part selection?

A: ROHS3 compliance (A-CCS 032-G-T and 8432-11B1-RK-TP) is required for products sold in the European Union and many regulated markets. The 54020-32030LF carries REACH-affected status, requiring additional documentation for certain applications. For new designs targeting EU markets, ROHS3-compliant alternatives are recommended.

Q: What inventory considerations apply to these substitute parts?

A: The A-CCS32-G (obsolete) has 937 units available. The A-CCS 032-G-T offers 2039 units, the 54020-32030LF provides 7572 units, and the 8432-11B1-RK-TP has 35397 units in stock. For long-term procurement planning, the 8432-11B1-RK-TP and 54020-32030LF offer superior availability.

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