77313-402-20LF Equivalent & Substitute Parts

Part Overview

The 77313-402-20LF is a rectangular connector header manufactured by Amphenol ICC (FCI) in the BERGSTIK® series. This through-hole connector features 20 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing, designed for board-to-board or cable applications. The connector is actively produced and stocked with 904 units in inventory. Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters including pitch, position count, row configuration, mounting type, and contact specifications. Alternative models are necessary to accommodate design variations in contact length, insulation material, contact finish, and thermal operating ranges across different application requirements.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	20
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Material	Phosphor Bronze
Contact Shape	Square
Insulation Material	Thermoplastic
Insulation Color	Black
Current Rating	3A per Contact
Operating Temperature	-65°C ~ 130°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 77313-402-20LF are qualified based on the following core parameters that must remain constant across all equivalent models:

Fixed Parameters (Must Match):

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 20
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Contact Type: Male Pin
Contact Shape: Square
Contact Material: Phosphor Bronze
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Insulation Color: Black
Style: Board to Board or Cable
Shrouding: Unshrouded
Number of Positions Loaded: All

Variable Parameters (Allowed to Differ):

Contact Length - Mating: 0.230" to 0.250" (5.84mm to 6.35mm)
Contact Length - Post: 0.120" to 0.720" (3.05mm to 18.29mm)
Overall Contact Length: 0.430" to 1.050" (10.92mm to 26.67mm)
Insulation Height: 0.060" to 0.100" (1.52mm to 2.54mm)
Contact Finish - Mating: Tin or Gold
Contact Finish - Post: Tin or Gold
Insulation Material: Thermoplastic, Liquid Crystal Polymer (LCP), or Polybutylene Terephthalate (PBT)
Current Rating: 3A to 5.2A per Contact
Operating Temperature Range: -55°C to -65°C minimum; 125°C to 130°C maximum
RoHS Status: RoHS Compliant or ROHS3 Compliant
REACH Status: REACH Affected or REACH Unaffected

Parameter Comparison

Parameter	77313-402-20LF (Amphenol ICC)	MTLW-110-07-G-D-250 (Samtec)	PBC10DAAN (Sullins)	PBC10DABN (Sullins)	PEC10DAAN (Sullins)	PEC10DACN (Sullins)	PEC10DADN (Sullins)	PEC10DAGN (Sullins)
Manufacturer	Amphenol ICC (FCI)	Samtec Inc.	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions
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 Positions	20	20	20	20	20	20	20	20
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)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Contact Length - Mating	0.230" (5.84mm)	0.250" (6.35mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.135" (3.43mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.120" (3.05mm)	0.320" (8.13mm)	0.420" (10.67mm)	0.720" (18.29mm)
Overall Contact Length	0.465" (11.81mm)	0.430" (10.92mm)	0.450" (11.43mm)	0.560" (14.22mm)	0.450" (11.43mm)	0.650" (16.51mm)	0.750" (19.05mm)	1.050" (26.67mm)
Insulation Height	0.100" (2.54mm)	0.060" (1.52mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish - Mating	Tin	Gold	Gold	Gold	Tin	Tin	Tin	Tin
Contact Finish - Post	Tin	Gold	Tin	Tin	Tin	Tin	Tin	Tin
Insulation Material	Thermoplastic	Liquid Crystal Polymer (LCP)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Current Rating	3A per Contact	5.2A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact
Operating Temperature	-65°C ~ 130°C	-55°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°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
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	904 Pcs New Original In Stock	1160 Pcs New Original In Stock	3613 Pcs New Original In Stock	1326 Pcs New Original In Stock	2798 Pcs New Original In Stock	1424 Pcs New Original In Stock	1205 Pcs New Original In Stock	2502 Pcs New Original In Stock

Engineering Selection Recommendations

All substitute parts listed maintain active product status and comply with RoHS and REACH regulations. Selection between the 77313-402-20LF and substitute models depends on specific application requirements for contact post length and insulation material composition.

MTLW-110-07-G-D-250 (Samtec Inc.): This substitute features gold-plated contacts on both mating and post surfaces with Liquid Crystal Polymer insulation. The operating temperature range is -55°C to 125°C, which is narrower than the main part. Current rating is elevated to 5.2A per Contact. Insulation height is reduced to 0.060" (1.52mm). This configuration is suitable for applications requiring enhanced contact durability and higher current capacity within the specified temperature range.

PBC10DAAN (Sullins Connector Solutions): This substitute maintains the 3A current rating and -65°C to 125°C operating temperature range. Contact post length is 0.120" (3.05mm), matching the Samtec option. Gold-plated mating contacts with tin-plated posts and PBT insulation material provide a balanced alternative. Inventory availability is 3613 units.

PBC10DABN (Sullins Connector Solutions): This variant extends the contact post length to 0.230" (5.84mm), providing increased board penetration depth. Gold-plated mating contacts with tin-plated posts and PBT insulation are specified. Operating temperature range and current rating remain consistent with PBC10DAAN.

PEC10DAAN (Sullins Connector Solutions): This substitute features tin-plated contacts on both mating and post surfaces with PBT insulation. Contact post length is 0.120" (3.05mm). Operating temperature range is -65°C to 125°C with 3A current rating. This configuration provides cost-effective substitution with consistent electrical performance.

PEC10DACN (Sullins Connector Solutions): Extended contact post length of 0.320" (8.13mm) with tin-plated contacts on both surfaces. PBT insulation material and -65°C to 125°C operating temperature range are maintained. Overall contact length reaches 0.650" (16.51mm).

PEC10DADN (Sullins Connector Solutions): Further extended contact post length of 0.420" (10.67mm) with tin-plated contacts and PBT insulation. Overall contact length is 0.750" (19.05mm). Operating temperature and current ratings remain unchanged.

PEC10DAGN (Sullins Connector Solutions): Maximum contact post length variant at 0.720" (18.29mm) with tin-plated contacts and PBT insulation. Overall contact length reaches 1.050" (26.67mm). This configuration accommodates applications requiring maximum board penetration depth.

Frequently Asked Questions (FAQ)

Q: What are the core parameters that define substitution compatibility for the 77313-402-20LF?

A: The 77313-402-20LF can be substituted with alternative models that maintain identical pitch spacing (0.100" / 2.54mm), position count (20), row configuration (2 rows), contact type (male pin), contact shape (square), contact material (phosphor bronze), mounting method (through-hole solder), and fastening mechanism (push-pull). All substitute parts must feature black insulation, unshrouded design, and board-to-board or cable application capability.

Q: How do contact post length variations affect substitution selection?

A: Contact post length determines the depth of penetration into the printed circuit board. The main part 77313-402-20LF specifies 0.135" (3.43mm) post length. Substitute options range from 0.120" (3.05mm) to 0.720" (18.29mm). Shorter post lengths (0.120" to 0.135") are suitable for standard PCB thicknesses. Extended post lengths (0.320" to 0.720") accommodate thicker boards, stacked assemblies, or applications requiring deeper mechanical engagement. Selection must align with specific board thickness and assembly architecture requirements.

Q: What is the significance of contact finish differences between tin and gold plating?

A: The main part 77313-402-20LF features tin-plated contacts on both mating and post surfaces. Substitute parts offer either tin or gold plating options. Tin plating provides cost-effective corrosion resistance suitable for standard applications. Gold plating (offered on MTLW-110-07-G-D-250, PBC10DAAN, and PBC10DABN) enhances contact reliability, reduces contact resistance, and improves performance in high-reliability or high-frequency applications. Gold-plated contacts are typically specified for applications with stringent electrical performance requirements or extended service life expectations.

Q: How do insulation material differences impact part selection?

A: The main part uses Thermoplastic insulation. Substitute parts employ either Liquid Crystal Polymer (LCP) or Polybutylene Terephthalate (PBT) insulation materials. LCP (MTLW-110-07-G-D-250) offers superior dimensional stability and lower moisture absorption, suitable for high-precision applications. PBT (all Sullins variants) provides excellent mechanical strength, chemical resistance, and cost-effectiveness for general-purpose applications. Material selection depends on environmental exposure, mechanical stress requirements, and thermal cycling expectations.

Q: What operating temperature range considerations apply to substitution?

A: The main part 77313-402-20LF operates from -65°C to 130°C. Most substitute parts operate from -65°C to 125°C, providing a 5°C reduction in maximum temperature capability. The MTLW-110-07-G-D-250 operates from -55°C to 125°C, reducing the minimum temperature capability by 10°C. Applications requiring the full -65°C to 130°C range must use the original 77313-402-20LF or verify that substitute parts meet specific thermal requirements.

Q: How does current rating affect circuit design when using substitute parts?

A: The main part 77313-402-20LF is rated for 3A per contact. The MTLW-110-07-G-D-250 substitute provides 5.2A per contact, offering increased current capacity. All Sullins substitute parts maintain the 3A per contact rating. Circuit designs operating at or near the 3A limit can utilize any substitute part. Designs requiring current capacity above 3A per contact must specify the MTLW-110-07-G-D-250. Designs operating below 3A per contact are compatible with all listed substitutes.

Q: Are all substitute parts RoHS and REACH compliant?

A: The main part 77313-402-20LF is RoHS Compliant and REACH Affected. All substitute parts are ROHS3 Compliant. MTLW-110-07-G-D-250 is REACH Unaffected, while all Sullins variants are REACH Unaffected. Both RoHS and REACH compliance statuses are acceptable for most applications. Designs with specific regulatory requirements must verify compliance status against applicable standards and regional regulations.

Q: What inventory considerations apply when selecting substitute parts?

A: The main part 77313-402-20LF has 904 units in stock. Substitute parts offer varying inventory levels: MTLW-110-07-G-D-250 (1160 units), PBC10DAAN (3613 units), PBC10DABN (1326 units), PEC10DAAN (2798 units), PEC10DACN (1424 units), PEC10DADN (1205 units), and PEC10DAGN (2502 units). Higher inventory availability may influence substitution decisions for high-volume production requirements or extended lead-time mitigation strategies.

Q: Can the 77313-402-20LF be directly replaced with any substitute part without design modification?

A: Direct replacement without design modification is possible only with substitute parts that maintain identical contact post length (0.135" / 3.43mm). The closest match is PBC10DAAN with 0.120" (3.05mm) post length, which represents a 0.015" (0.38mm) reduction. All other substitutes feature different post lengths requiring PCB layout verification to ensure proper board penetration and mechanical engagement. Insulation height variations (0.060" to 0.100") may also require clearance verification in confined assembly spaces.

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