L777DFBH25P

Part Overview

The L777DFBH25P is a 25-position D-Sub plug connector manufactured by Amphenol ICC, featuring male pins with panel mount configuration and solder cup termination. This connector is currently in active production status. Alternative models become necessary when specific mounting configurations, operational temperature ranges, or compliance certifications differ from the primary design requirements, or when sourcing constraints require equivalent substitutes with compatible electrical and mechanical characteristics.

Substiute Parts

L777DFBH25P

Amphenol ICC (Commercial Products)In Stock: 964L777DFBH25P Datasheet

Current PartRFQ

09643217220

HARTINGIn Stock: 90509643217220 Datasheet

SimilarRFQ

09643217230

HARTINGIn Stock: 69409643217230 Datasheet

SimilarRFQ

09643217240

HARTINGIn Stock: 88109643217240 Datasheet

SimilarRFQ

DB-25PR

JAE ElectronicsIn Stock: 1318DB-25PR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of D-Sub 25-position connectors is determined by the following critical parameters:

Mandatory matching criteria: Connector type (plug, male pins), number of positions (25), shell size / layout (3 / DB, B), termination method (solder cup), and current rating compatibility (minimum 7.5A).

Compatibility considerations: Mounting type affects physical integration; panel mount connectors (L777DFBH25P and DB-25PR) are not interchangeable with free-hanging inline configurations (09643217220, 09643217230, 09643217240). Operating temperature range and voltage rating determine application suitability; specifications must meet or exceed system requirements.

Material and finish variations: Contact finish (gold vs. unspecified), shell material finish (tin plated vs. bare steel), and contact material (brass vs. copper alloy) affect corrosion resistance and electrical performance but do not prevent substitution when environmental conditions are compatible.

The substitute parts listed (09643217220, 09643217230, 09643217240) share core D-Sub 25-position, solder cup termination characteristics but differ in mounting configuration (free-hanging instead of panel mount). DB-25PR provides a panel mount alternative functionally equivalent to the primary part.

Parameter Comparison

Engineering Selection Recommendations

For direct panel mount replacement: DB-25PR (JAE Electronics) is the functional equivalent with panel mount configuration. Both L777DFBH25P and DB-25PR are active products with ROHS3 compliance. Note that DB-25PR specifies 5A current rating versus 7.5A for the primary part; verify current requirements against system specifications.

For free-hanging inline applications: Parts 09643217230 and 09643217240 (both HARTING, active status) are suitable equivalents when inline mounting is required. These are active products with ROHS3 compliance. Operating temperature maximum is 125°C versus 155°C for the primary part; voltage rating is 100V versus 300V for the primary part. Select these only when application operating parameters do not exceed 125°C or 100V.

Obsolete parts: 09643217220 (HARTING) is marked obsolete and should not be selected for new designs despite technical compatibility.

For applications requiring maximum voltage (300V) or temperature (155°C): Maintain L777DFBH25P as the only viable option; no substitute meets both specifications.

Frequently Asked Questions (FAQ)

Q: Can HARTING free-hanging connectors (09643217220, 09643217230, 09643217240) replace the panel mount L777DFBH25P? A: No. Mounting type is a critical non-substitutable parameter. Free-hanging inline connectors require different circuit board layout and mechanical integration than panel mount designs. Substitution is valid only when mounting configuration matches or when the application architecture accommodates the mounting difference.

Q: What is the significance of the voltage rating difference (300V vs. 100V)? A: The voltage rating specifies the maximum voltage the connector can safely handle. Applications operating above 100V require the L777DFBH25P or equivalent parts rated for 300V. HARTING substitutes (09643217230, 09643217240) are not suitable for systems exceeding 100V operation.

Q: Is the 09643217220 (HARTING) a valid substitute despite obsolete status? A: No. Product obsolescence indicates the manufacturer has discontinued production and support. Current designs should not rely on obsolete parts. Use active alternatives 09643217230 or 09643217240 instead.

Q: How does the current rating difference (7.5A vs. 5A) affect DB-25PR suitability? A: The 5A rating on DB-25PR is lower than the 7.5A primary specification. Substitution is valid only when circuit design does not require current above 5A. For applications exceeding 5A, the L777DFBH25P is mandatory.

Q: What packaging format differences exist among these connectors? A: L777DFBH25P ships in tray packaging. HARTING parts (09643217220, 09643217230, 09643217240) are supplied in bulk. JAE DB-25PR is packaged in bags. Packaging does not affect electrical or mechanical compatibility; select based on assembly process requirements.

Q: Are contact material differences (Brass vs. Copper Alloy) significant? A: Both materials function in D-Sub applications. Brass offers specific corrosion resistance and solderable properties; Copper Alloy provides alternative characteristics. Selection depends on solder compatibility, environmental exposure, and operational requirements. When environmental conditions are identical, either material is functionally acceptable.

Q: Can I substitute based on RoHS compliance alone? A: No. RoHS compliance (RoHS Compliant vs. ROHS3 Compliant) confirms lead-free material standards but does not ensure electrical or mechanical compatibility. All critical parameters—mounting type, voltage rating, current rating, operating temperature—must match application requirements independently of RoHS designation.