A-CCS68-Z PLCC 68-Position Socket Equivalent & Substitute Parts

Part Overview

The A-CCS68-Z is a 68-position PLCC socket manufactured by Assmann WSW Components, designed for through-hole mounting applications. This component features a closed frame design with tin-plated phosphor bronze contacts and is rated for 1 A current with a contact resistance of 30mOhm. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Type	PLCC Socket
Number of Positions	68 (4 x 17)
Pitch - Mating	0.050" (1.27mm)
Pitch - Post	0.100" (2.54mm)
Mounting Type	Through Hole
Contact Finish - Mating	Tin
Contact Material - Mating	Phosphor Bronze
Housing Material	Polybutylene Terephthalate (PBT), Glass Filled
Operating Temperature Range	-55°C ~ 105°C
Current Rating	1 A
Contact Resistance	30mOhm
Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility for the A-CCS68-Z is determined by the following critical parameters:

Position Count & Grid Configuration: 68 positions in 4 x 17 arrangement (non-negotiable)
Mating Pitch: 0.050" (1.27mm) for PLCC contact spacing
Socket Type: PLCC closed frame design
Mounting Method: Through-hole termination
Electrical Performance: 1 A current rating and contact resistance specifications
Environmental Compliance: Operating temperature range and flammability rating

Two substitute parts meet these criteria with variations in post pitch, contact material composition, and compliance status.

Parameter Comparison

Parameter	A-CCS68-Z (Main)	A-CCS 068-Z-T (Substitute)	8468-11B1-RK-TP (Substitute)
Manufacturer	Assmann WSW Components	Assmann WSW Components	3M
Type	PLCC Socket	PLCC Socket	PLCC Socket
Positions	68 (4 x 17)	68 (4 x 17)	68 (4 x 17)
Pitch - Mating	0.050" (1.27mm)	0.050" (1.27mm)	0.050" (1.27mm)
Pitch - Post	0.100" (2.54mm)	0.100" (2.54mm)	0.050" (1.27mm)
Contact Finish - Mating	Tin	Tin	Tin
Contact Material - Mating	Phosphor Bronze	Phosphor Bronze	Copper Alloy
Housing Material	PBT, Glass Filled	PBT	PBT, Glass Filled
Operating Temperature	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Current Rating	1 A	1 A	1 A
Contact Resistance	30mOhm	15mOhm	Not specified
Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

A-CCS 068-Z-T is the primary direct substitute for A-CCS68-Z. Both parts are manufactured by Assmann WSW Components and share identical PLCC socket specifications including position count, mating pitch, and through-hole mounting configuration. The A-CCS 068-Z-T is currently in active production status with improved contact resistance (15mOhm versus 30mOhm) and achieves ROHS3 compliance. The operating temperature range is narrower (-40°C to 105°C versus -55°C to 105°C), which is acceptable for most industrial applications. This part is available in tube packaging with 2058 units in stock.

8468-11B1-RK-TP (3M, Series 8400) is an alternative substitute that maintains full electrical and mechanical compatibility for PLCC 68-position socket applications. This part differs in post pitch (0.050" versus 0.100"), which requires PCB redesign for implementation. The 8468-11B1-RK-TP uses copper alloy contact material instead of phosphor bronze and is also ROHS3 compliant with active product status. This option is suitable only when PCB layout modifications are feasible.

For applications requiring the original -55°C lower temperature limit, neither substitute fully matches this specification. Both alternatives operate to -40°C minimum.

Frequently Asked Questions (FAQ)

Q: Can A-CCS 068-Z-T directly replace A-CCS68-Z without PCB modification?

A: Yes. Both parts share identical PLCC socket specifications: 68 positions, 0.050" mating pitch, 0.100" post pitch, and through-hole mounting. No PCB layout changes are required. The A-CCS 068-Z-T is the direct form-fit-function equivalent.

Q: What is the difference in contact resistance between the main part and A-CCS 068-Z-T?

A: The A-CCS68-Z has 30mOhm contact resistance, while A-CCS 068-Z-T has 15mOhm. The lower resistance in the substitute part represents improved electrical performance and reduced voltage drop.

Q: Why does 8468-11B1-RK-TP have a different post pitch?

A: The 8468-11B1-RK-TP uses 0.050" post pitch compared to 0.100" in the original part. This difference requires PCB footprint redesign and is not a direct pin-compatible substitute without layout modifications.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both A-CCS 068-Z-T and 8468-11B1-RK-TP are ROHS3 compliant. The original A-CCS68-Z is RoHS non-compliant.

Q: What is the minimum operating temperature for the substitutes?

A: Both substitute parts operate from -40°C to 105°C. The original A-CCS68-Z operates from -55°C to 105°C. If the lower -55°C limit is required, neither substitute meets this specification.

Q: What packaging is available for each substitute?

A: A-CCS 068-Z-T is supplied in tube packaging. 8468-11B1-RK-TP is also supplied in tube packaging. Both have adequate inventory availability (2058 and 2120 units respectively).

Q: Can I use 8468-11B1-RK-TP as a drop-in replacement?

A: No. The 8468-11B1-RK-TP requires PCB redesign due to its 0.050" post pitch versus the 0.100" post pitch of the original part. This is not a drop-in replacement without layout modifications.

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