Equivalent & Substitute Parts for TE Connectivity 1-535512-1

Part Overview

The TE Connectivity 1-535512-1 is a 76-position receptacle connector from the AMPMODU Mod II series, designed for 0.100" (2.54mm) pitch through-hole, right-angle PCB mounting applications. This connector features gold-plated mating contacts, female socket configuration, and is rated for 2A per contact with an operating temperature range of -55°C to 125°C.

The 1-535512-1 is classified as obsolete. Equivalent substitute parts are necessary to maintain design compatibility while ensuring access to active, currently manufactured alternatives that meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	76
Pitch - Mating	0.100" (2.54mm)
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
Contact Material	Phosphor Bronze
Contact Shape	Square
Insulation Color	Black
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 1-535512-1 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Core Compatibility Parameters:

Connector type: Receptacle
Contact type: Female socket
Number of positions: 76
Mating pitch: 0.100" (2.54mm)
Number of rows: 2
Row spacing: 0.100" (2.54mm)
Mounting type: Through hole, right angle
Termination: Solder
Fastening type: Push-pull
Operating temperature range: -55°C to 125°C
Material flammability rating: UL94 V-0
Contact material: Phosphor bronze
Contact shape: Square
Insulation color: Black
MSL rating: 1 (Unlimited)

The Samtec Tiger Claw™ BCS series connectors (BCS-138 base product number) meet all core compatibility requirements. Variations within this series differ in contact finish specifications (gold plating thickness and post finish material) and current rating capacity, which are secondary parameters that do not affect mechanical interchangeability or basic electrical function within the specified operating conditions.

Parameter Comparison

Parameter	1-535512-1 (Main)	BCS-138-F-D-HE	BCS-138-FM-D-HE	BCS-138-LM-D-HE	BCS-138-S-D-HE	BCS-138-SM-D-HE	BCS-138-T-D-HE	BCS-138-TM-D-HE
Manufacturer	TE Connectivity	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	76	76	76	76	76	76	76	76
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2	2	2	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Tin	Tin
Contact Finish Thickness - Mating	30.0µin (0.76µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	Not specified	Not specified
Insulation Height	0.238" (6.05mm)	0.210" (5.33mm)	0.210" (5.33mm)	0.210" (5.33mm)	0.210" (5.33mm)	0.210" (5.33mm)	0.210" (5.33mm)	0.210" (5.33mm)
Contact Length - Post	0.115" (2.92mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black
Insulation Material	Polyester, Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled
Current Rating (Amps)	2A	4.6A per Contact	4.6A per Contact	4.6A per Contact	4.6A per Contact	4.6A per Contact	4.6A per Contact	4.6A per Contact
Voltage Rating	Not specified	475VAC	475VAC	475VAC	475VAC	475VAC	475VAC	475VAC
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All Samtec Tiger Claw™ BCS series connectors listed are active products with current manufacturing status, providing long-term availability compared to the obsolete 1-535512-1. The substitute parts offer improved compliance posture with ROHS3 certification and REACH unaffected status, addressing regulatory requirements for new designs and production.

Selection by Contact Finish:

For applications requiring gold-plated mating contacts matching the original 1-535512-1 specification, select from BCS-138-F-D-HE, BCS-138-FM-D-HE, BCS-138-LM-D-HE, BCS-138-S-D-HE, or BCS-138-SM-D-HE. These variants differ in gold plating thickness (3.00µin, 10.0µin, or 30.0µin) and contact post finish material (tin or tin-lead).

For applications where tin-plated mating contacts are acceptable, BCS-138-T-D-HE and BCS-138-TM-D-HE provide equivalent mechanical and electrical performance with reduced cost.

Mechanical Considerations:

Samtec BCS series connectors feature a reduced insulation height of 0.210" (5.33mm) compared to the original 0.238" (6.05mm). This dimension difference must be evaluated against PCB layout constraints and mating connector specifications. Contact length on the post is 0.125" (3.18mm) versus the original 0.115" (2.92mm), which may affect solder joint geometry and thermal profile during assembly.

Electrical Performance:

All substitute parts support the operating temperature range of -55°C to 125°C and maintain UL94 V-0 flammability rating. The Samtec connectors provide higher current capacity (4.6A per contact) and specified voltage rating (475VAC) compared to the original part, offering design margin for electrical performance.

Frequently Asked Questions (FAQ)

Q: Are the Samtec BCS-138 series connectors mechanically interchangeable with the TE Connectivity 1-535512-1?

A: The BCS-138 series connectors are mechanically compatible for PCB mounting and mating interface. However, the reduced insulation height (0.210" versus 0.238") and increased contact post length (0.125" versus 0.115") must be evaluated against specific PCB layout and mating connector requirements.

Q: What is the difference between the various BCS-138 part numbers?

A: The BCS-138 base product number identifies the 76-position, 0.100" pitch receptacle connector. Suffix designations indicate variations in contact finish specifications. The "-F-D-HE" variant features 3.00µin gold plating on mating contacts with tin post finish. The "-S-D-HE" and "-SM-D-HE" variants feature 30.0µin gold plating matching the original part thickness. The "-T-D-HE" and "-TM-D-HE" variants feature tin-plated mating contacts. The "-M" suffix indicates modified contact post finish or geometry.

Q: Can I use a tin-plated BCS-138 connector as a direct replacement for the gold-plated 1-535512-1?

A: Tin-plated connectors (BCS-138-T-D-HE and BCS-138-TM-D-HE) provide equivalent electrical and mechanical function. Contact finish selection depends on application requirements for corrosion resistance, contact resistance, and environmental exposure. Gold plating provides superior corrosion resistance in harsh environments.

Q: What is the significance of the gold plating thickness differences among the BCS-138 variants?

A: Gold plating thickness affects contact durability and corrosion resistance. The original 1-535512-1 specifies 30.0µin (0.76µm) thickness. The BCS-138-S-D-HE and BCS-138-SM-D-HE variants match this specification. The BCS-138-F-D-HE variant provides 3.00µin thickness for cost reduction, while BCS-138-LM-D-HE provides 10.0µin thickness as an intermediate option. Thicker plating extends contact life in high-cycle mating applications.

Q: Are the substitute parts RoHS compliant?

A: All Samtec BCS-138 series connectors are ROHS3 compliant, whereas the original 1-535512-1 is RoHS non-compliant. This compliance improvement is beneficial for new designs and production in regulated markets.

Q: What is the REACH status difference between the original and substitute parts?

A: The original 1-535512-1 is REACH affected, indicating potential substance of concern content. All Samtec BCS-138 series connectors are REACH unaffected, providing regulatory advantage for applications subject to REACH requirements.

Q: Can the higher current rating of the BCS-138 connectors (4.6A per contact versus 2A) affect circuit performance?

A: The higher current rating of the substitute parts indicates improved contact design and material selection. This does not negatively affect circuit performance. Applications designed for 2A operation remain fully compatible and benefit from additional thermal margin.

Q: What insulation material difference exists between the original and substitute parts?

A: The original 1-535512-1 uses polyester glass-filled insulation, while the BCS-138 series uses liquid crystal polymer (LCP) glass-filled insulation. LCP provides superior dimensional stability, lower moisture absorption, and improved high-temperature performance, enhancing connector reliability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message