Request Quote
(Ships tomorrow)
L77DBG25SOL2 D-Sub 25 Position Receptacle Equivalent & Substitute Parts
Part Overview
The L77DBG25SOL2 is a 25 Position D-Sub Receptacle connector manufactured by Amphenol ICC (Commercial Products). This through-hole solder termination connector features female sockets in a DB/B shell size (Shell Size 3) configuration with two rows of contacts. The part is currently in Active product status with 998 pieces available in new original inventory.
D-Sub receptacle connectors serve as mating interfaces in electronic assemblies requiring standardized signal distribution across multiple circuits. Equivalent and substitute parts become necessary when addressing supply chain constraints, design revisions requiring different mounting configurations, or when transitioning between active and obsolete product lines while maintaining functional compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Receptacle, Female Sockets |
| Number of Positions | 25 |
| Number of Rows | 2 |
| Shell Size, Connector Layout | 3 (DB, B) |
| Mounting Type | Through Hole |
| Termination | Solder |
| Shell Material, Finish | Steel, Tin Plated |
| Contact Finish | Gold |
| Current Rating (Amps) | 7.5A |
| Voltage Rating | 300V |
| Operating Temperature | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the L77DBG25SOL2 is determined by the following critical parameters:
Primary Compatibility Criteria:
- Connector Type: Receptacle, Female Sockets (fixed requirement)
- Number of Positions: 25 (fixed requirement)
- Number of Rows: 2 (fixed requirement)
- Shell Size, Connector Layout: 3 (DB, B) (fixed requirement)
- Termination: Solder (fixed requirement)
Secondary Compatibility Criteria (with allowable variations):
- Mounting Type: Through Hole (primary configuration; Panel Mount variants acceptable with flange feature differences)
- Contact Finish: Gold (standard; Flash thickness acceptable)
- Material Flammability Rating: UL94 V-0 (required)
- Connector Style: D-Sub (required)
Parameters Allowing Substitution Variance:
- Current Rating: L77DBG25SOL2 rated at 7.5A; substitutes rated at 5A or 6A are acceptable for applications not requiring full current capacity
- Voltage Rating: L77DBG25SOL2 rated at 300V; substitutes without specified voltage rating or with lower ratings acceptable for applications within those limits
- Operating Temperature: L77DBG25SOL2 range -55°C ~ 125°C; substitutes with -50°C ~ 100°C acceptable for applications within narrower range
- Shell Material Finish: Tin Plated or Nickel Plated acceptable; both provide corrosion resistance
- Contact Material: Brass or Phosphor Bronze acceptable; both provide electrical conductivity
- Flange Feature: Board Side (M3), Board Side (4-40), Housing/Shell (M3), Housing/Shell (4-40), or Mating Side variations acceptable based on mounting requirements
Compliance Requirements:
- RoHS Status: RoHS Compliant or ROHS3 Compliant required
- ECCN: EAR99 (all listed substitutes comply)
Substitutes listed below meet all primary compatibility criteria and operate within acceptable parameter ranges for standard D-Sub receptacle applications.
Parameter Comparison
| Part Number | Manufacturer | Connector Type | Positions | Rows | Shell Size | Mounting Type | Termination | Current (A) | Voltage (V) | Temp Range (°C) | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L77DBG25SOL2 | Amphenol ICC | Receptacle, Female | 25 | 2 | 3 (DB, B) | Through Hole | Solder | 7.5 | 300 | -55 ~ 125 | Active | RoHS Compliant |
| 172-025-212R011 | NorComp Inc. | Receptacle, Female | 25 | 2 | 3 (DB, B) | Panel Mount, Through Hole | Solder | 5 | — | -50 ~ 100 | Obsolete | ROHS3 Compliant |
| 172-025-212R021 | NorComp Inc. | Receptacle, Female | 25 | 2 | 3 (DB, B) | Panel Mount, Through Hole | Solder | 5 | — | -50 ~ 100 | Obsolete | ROHS3 Compliant |
| 172-E25-213R001 | NorComp Inc. | Receptacle, Female | 25 | 2 | 3 (DB, B) | Panel Mount, Through Hole | Solder | 5 | — | -50 ~ 100 | Active | ROHS3 Compliant |
| 172-E25-213R011 | NorComp Inc. | Receptacle, Female | 25 | 2 | 3 (DB, B) | Panel Mount, Through Hole | Solder | 5 | — | -50 ~ 100 | Active | ROHS3 Compliant |
| 172-E25-213R031 | NorComp Inc. | Receptacle, Female | 25 | 2 | 3 (DB, B) | Panel Mount, Through Hole | Solder | 5 | — | -50 ~ 100 | Active | ROHS3 Compliant |
| 172-E25-213R911 | NorComp Inc. | Receptacle, Female | 25 | 2 | 3 (DB, B) | Panel Mount, Through Hole | Solder | 5 | — | -50 ~ 100 | Active | ROHS3 Compliant |
| 2-338315-2 | TE Connectivity AMP | Receptacle, Female | 25 | 2 | 3 (DB, B) | Through Hole | Solder | 6 | — | -55 ~ 105 | Active | ROHS3 Compliant |
| 6-338315-2 | TE Connectivity AMP | Receptacle, Female | 25 | 2 | 3 (DB, B) | Through Hole | Solder | 6 | — | -55 ~ 105 | Active | RoHS Compliant |
| D25S24A4GL00LF | Amphenol ICC (FCI) | Receptacle, Female | 25 | 2 | 3 (DB, B) | Through Hole | Solder | 5 | 300 | -55 ~ 125 | Active | RoHS Compliant |
| D25S24A4GX00LF | Amphenol ICC (FCI) | Receptacle, Female | 25 | 2 | 3 (DB, B) | Through Hole | Solder | 5 | 300 | -55 ~ 125 | Active | RoHS Compliant |
Engineering Selection Recommendations
Direct Substitutes (Highest Compatibility):
Parts D25S24A4GL00LF and D25S24A4GX00LF (Amphenol ICC FCI, Delta D Series) are functionally equivalent to L77DBG25SOL2. Both are Active status products with RoHS Compliant certification. These parts maintain identical shell size, position count, row configuration, and operating temperature range (-55°C ~ 125°C). Voltage rating matches at 300V. The primary difference is current rating: 5A per contact versus 7.5A on the main part. Selection between these two substitutes depends on flange feature requirements: GL00LF features Housing/Shell (M3) mounting; GX00LF features Housing/Shell (4-40) mounting.
Secondary Substitutes (Acceptable with Application Review):
TE Connectivity AMP parts 2-338315-2 and 6-338315-2 (AMPLIMITE HDP-20 Series) are Active status products with current ratings of 6A. Both maintain through-hole mounting and 25-position configuration. Operating temperature range is -55°C ~ 105°C, which is narrower than the main part. These parts are suitable for applications not requiring the full 7.5A current capacity and operating within the -55°C ~ 105°C temperature window. Part 2-338315-2 is packaged in Bulk; 6-338315-2 is packaged in Tray.
NorComp Inc. Substitutes (Limited Applicability):
NorComp 172 Series and 172-E Series parts (172-025-212R011, 172-025-212R021, 172-E25-213R001, 172-E25-213R011, 172-E25-213R031, 172-E25-213R911) feature panel mount configurations with through-hole capability. These parts are suitable only for applications requiring panel-mounted receptacles. Current rating is 5A, and operating temperature range is -50°C ~ 100°C. Parts 172-025-212R011 and 172-025-212R021 are Obsolete status; 172-E Series parts are Active status. ROHS3 Compliant certification applies to all NorComp variants.
Compliance Considerations:
All listed substitutes meet EAR99 ECCN classification and UL94 V-0 flammability rating. RoHS compliance is confirmed for all parts. REACH status varies: Amphenol ICC parts are REACH Unaffected; TE Connectivity 6-338315-2 is REACH Affected; NorComp parts are REACH Unaffected.
Frequently Asked Questions (FAQ)
Q: Can D25S24A4GL00LF replace L77DBG25SOL2 in my application?
A: Yes, if your application does not require the full 7.5A current capacity per contact. D25S24A4GL00LF is rated at 5A per contact and maintains all other critical parameters: 25 positions, 2 rows, Shell Size 3 (DB, B), through-hole solder termination, 300V voltage rating, and -55°C ~ 125°C operating temperature. Both are Active status, RoHS Compliant products from Amphenol ICC. The primary difference is the flange feature: GL00LF uses Housing/Shell (M3) mounting versus the main part's Board Side (M3).
Q: What is the difference between D25S24A4GL00LF and D25S24A4GX00LF?
A: Both parts are functionally identical except for flange feature configuration. D25S24A4GL00LF features Housing/Shell (M3) mounting, while D25S24A4GX00LF features Housing/Shell (4-40) mounting. Selection depends on your PCB or panel mounting hole pattern. Both maintain 5A current rating, 300V voltage rating, and -55°C ~ 125°C operating temperature range.
Q: Why do NorComp 172 Series parts have lower current ratings?
A: NorComp 172 Series receptacles are rated at 5A per contact, compared to L77DBG25SOL2 at 7.5A. This reflects different contact design and material specifications. NorComp parts use Brass contacts with Polybutylene Terephthalate (PBT) or Polyamide (PA6T) dielectric materials. These parts are suitable for applications requiring 5A or less per contact. Operating temperature range is also narrower at -50°C ~ 100°C.
Q: Can I use TE Connectivity 2-338315-2 instead of L77DBG25SOL2?
A: Yes, with temperature and current considerations. The 2-338315-2 is an Active status substitute with 6A current rating and -55°C ~ 105°C operating temperature range. It maintains 25 positions, 2 rows, Shell Size 3 (DB, B), through-hole solder termination, and UL94 V-0 flammability rating. The narrower upper temperature limit (105°C versus 125°C) and lower current rating (6A versus 7.5A) must be acceptable for your application. Packaging is Bulk rather than Tray.
Q: What is the difference between Bulk and Tray packaging?
A: Bulk packaging (2-338315-2) typically provides loose components in a container without individual compartments. Tray packaging (6-338315-2, L77DBG25SOL2) organizes components in segmented trays for easier handling and inventory management. Both provide new original parts; packaging choice depends on assembly process requirements and inventory handling procedures.
Q: Are NorComp 172-025-212R011 and 172-025-212R021 interchangeable?
A: Both parts are functionally identical 25-position D-Sub receptacles with panel mount and through-hole capability. Both are Obsolete status products rated at 5A with -50°C ~ 100°C operating temperature. The primary difference is flange feature: 212R011 features Board Side (4-40) mounting; 212R021 also features Board Side (4-40) mounting. Both are ROHS3 Compliant. Inventory availability differs: 212R011 has 807 pieces; 212R021 has 763 pieces.
Q: Which substitute offers the best compatibility with L77DBG25SOL2?
A: D25S24A4GL00LF and D25S24A4GX00LF offer the highest compatibility. Both are from Amphenol ICC (same manufacturer as the main part), maintain identical operating temperature range (-55°C ~ 125°C), voltage rating (300V), and shell configuration. The only significant difference is current rating (5A versus 7.5A). If your application requires the full 7.5A capacity, TE Connectivity 2-338315-2 or 6-338315-2 at 6A rating provides the next best option.
Q: Can I use a panel mount substitute in a through-hole application?
A: Panel mount receptacles (NorComp 172 Series) feature flange designs for panel mounting but retain through-hole solder termination capability. If your PCB layout accommodates the panel mount flange dimensions and your assembly process supports panel-mounted components, these parts are functionally compatible. However, through-hole only designs (L77DBG25SOL2, TE Connectivity, Amphenol Delta D Series) are preferred for standard PCB-mounted applications without panel integration.
Q: What does ROHS3 Compliant mean versus RoHS Compliant?
A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 refers to the third iteration of the RoHS directive with updated substance restrictions. RoHS Compliant typically refers to earlier directive versions. All listed substitutes meet current environmental compliance requirements. Specific directive version may affect long-term supply chain planning but does not impact electrical or mechanical compatibility.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts