The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact your Hirose sales representative. 2.54mm Pitch Bottom Entry Type Connector MDF7 Series Features Board to Board size Freely settable 1. Board to Board Size Freely Settable The board to board size can be set at infinite stages, according to the header pin through type structure and the diverse header variation. The board to board size can be set at infinite stages. 2. Integrity of Parts Mounted Surface The parts mounted surface on two boards aren't face each other, and can be oriented in the same direction. 3. Wide Variation Single-row product, double-row product, tin plated and gold plated products are lined up. In addition, the header to correspond to the board to board size are prepared. Concerning board to board size, other products can be provided, in addition to products in this catalog. Please contact HRS company as required. Applications Internal connection of telephone sets and OA/FA equipment, connection between IPM, IGBT and the board. A71 The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or willBottom be discontinued soon.Type PleaseConnector check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact your Hirose sales representative. MDF7 Series2.54mm Pitch Entry Product Specifications Rating Operating Temperature Range: -30c to +85c(Note 1) Current rating: 3A Voltage rating: 250V AC Operating Humidity Range: 40% to 80% Item Storage Temperature Range: -10c to +60c (Note 2) Storage Humidity Range: 40% to 70%(Note 2) Specification Condition 1. Insulation Resistance 1000M ohms min. 500V DC 2. Withstanding voltage No flashover or insulation breakdown. 650V AC/1 minute 3. Contact Resistance 30m ohms max. 100mA 4. Single Insertion/Extraction Force MIN 0.4N(40gf), MAX 4.4N(450gf) 5. Vibration 6. Humidity (Steady state) 7. Temperature Cycle 8. Durability (Mating/un-mating) Measured by the square steel pin with 0.6350.002mm No electrical discontinuity of 1s or more Frequency: 10 to 55 Hz, single amplitude of 0.75 mm, 2 hours in each of the 3 directions. Contact resistance: 30m ohms max. 96 hours at temperature of Insulation resistance: 500M ohms min. 40 2c and humidity of 90% to 95% Contact resistance: 30m ohms max. (-55c: 30 minutes, 5 to 35c: 10 minutes Insulation resistance: 1000M ohms min. (-85c: 30 minutes, 5 to 35c: 10 minutes) 5cycles Contact resistance: 30m ohms max. 9. Resistance to Soldering heat No deformation of components affecting performance. Tin plating : 30 cycles Gold plating : 50 cycles Flow: 260c for 10 seconds Manual soldering: 350c for 3 seconds Note 1: Includes temperature rise caused by current flow. Note 2: The term "storage" refers to products stored for long period of time prior to mounting and use. Operating Temperature Range and Humidity range covers non conducting condition of installed connectors in storage, shipment or during transportation. Note 3: Information contained in this catalog represents general requirements for this Series. Contact us for the drawings and specifications for a specific part number shown. Material Product Receptacle Pin Header Part Material Finish Insulator Polyamide Contact Phosphor bronze Insulator PBT Contact Black UL94V-0 Tin plated or gold plated ------- Main unit: Black/Locator: Gray UL94V-0 Tin plated or gold plated ------- Brass Ordering Information MDF7 - * S - 2.54 DSA q q Series Name w : MDF7 w Number of contacts : 3 to 46 e Connector Type S : Single row receptacle D : Double row receptacle P : Single row pin header DP: Double row pin header A72 e Remarks r t r Contact Pitch : 2.54mm t Contact type DSA: Straight through hole DS : Right Angle through hole The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact yourType HiroseConnector sales representative. MDF7 Series2.54mm Pitch Bottom Entry Single Row Receptacle [Specific No.] -* *, (* *) (55) :Tin plated (56) :Gold plated Number of Contacts A Number of Contacts Part Number CL No. B RoHS Part Number CL No. 15 3 7.62 5.08 MDF7-15S-2.54DSA(**) 547-0012-4-** MDF7- 3S-2.54DSA(**) 547-0355-0-** 16 5 12.7 10.16 MDF7-16S-2.54DSA(**) 547-0141-7-** MDF7- 5S-2.54DSA(**) 547-0112-9-** 17 6 15.24 12.7 MDF7-17S-2.54DSA(**) 547-0142-0-** MDF7- 6S-2.54DSA(**) 547-0129-1-** 18 7 17.78 15.24 MDF7-18S-2.54DSA(**) 547-0013-7-** MDF7- 7S-2.54DSA(**) 547-0135-4-** 19 8 20.32 17.78 MDF7-19S-2.54DSA(**) 547-0143-2-** MDF7- 8S-2.54DSA(**) 547-0136-7-** 20 9 22.86 20.32 YES MDF7-20S-2.54DSA(**) 547-0051-6-** MDF7- 9S-2.54DSA(**) 547-0137-0-** 21 10 25.4 22.86 MDF7-21S-2.54DSA(**) 547-0144-5-** MDF7-10S-2.54DSA(**) 547-0038-8-** 22 11 27.94 25.4 MDF7-22S-2.54DSA(**) 547-0145-8-** MDF7-11S-2.54DSA(**) 547-0138-2-** 23 12 30.48 27.94 MDF7-23S-2.54DSA(**) 547-0146-0-** MDF7-12S-2.54DSA(**) 547-0040-0-** 24 13 33.02 30.48 MDF7-24S-2.54DSA(**) 547-0147-3-** MDF7-13S-2.54DSA(**) 547-0139-5-** 25 14 35.56 33.02 MDF7-25S-2.54DSA(**) 547-0014-0-** MDF7-14S-2.54DSA(**) 547-0140-4-** Note: The quantity for delivery is determined per pack (100 pcs.). If needed, please order the products per pack. A 38.1 40.64 43.18 45.72 48.26 50.8 53.34 55.88 58.42 60.96 63.5 Unit: mm B RoHS 35.56 38.1 40.64 43.18 45.72 48.26 YES 50.8 53.34 55.88 58.42 60.96 Double Row Receptacle Unit: mm Number of Contacts Part Number CL No. A B RoHS [Specific No.] -* *, (* *) (Note 2) 15.24 12.7 12 MDF7-12D-2.54DSA(**) 547-0032-1-** (55) :Tin plated (56) :Gold plated 17.78 15.24 14 MDF7-14D-2.54DSA(**) 547-0354-8-** 20.32 17.78 16 MDF7-16D-2.54DSA(**) 547-0363-9-** 25.4 22.86 20 MDF7-20D-2.54DSA(**) 547-0033-4-** 27.94 25.4 22 MDF7-22D-2.54DSA(**) 547-0246-5-** 30.48 27.94 24 MDF7-24D-2.54DSA(**) 547-0244-0-** YES 33.02 30.48 26 MDF7-26D-2.54DSA(**) 547-0247-8-** 38.1 35.56 30 MDF7-30D-2.54DSA(**) 547-0016-5-** 43.18 40.64 34 MDF7-34D-2.54DSA(**) 547-0227-0-** 50.8 48.26 40 MDF7-40D-2.54DSA(**) 547-0228-3-** 58.42 55.88 46 MDF7-46D-2.54DSA(**) 547-0229-6-** 60.46 58.42 48 MDF7-48D-2.54DSA(**) 547-0060-7-** Note 1: A quantity for delivery is determined per pack (100 pcs.). If needed, please order the products per pack. Note 2: The MDF7 series 2-row plating specification is different from the single-row plating specification. No-specification indicates the gold plating, and (01) indicates the tin plating. A73 The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or willBottom be discontinued soon.Type PleaseConnector check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact your Hirose sales representative. MDF7 Series2.54mm Pitch Entry Single Row Straight Pin Header [Specific No.] -* *, (* *) (55) :Tin plated (01) :Gold plated Board Through-hole Diameter: O1.0++0.1 0 [without locator] MDF7(Board to Board Size: 2.54 to 5.5mm) Part Number CL No. Number of Contacts MDF7- 3P-2.54DSA(**) 547-0220-1-** 3 MDF7- 5P-2.54DSA(**) 547-0113-1-** MDF7- 6P-2.54DSA(**) 547-0130-0-** A B 7.62 5.08 Unit: mm C RoHS [with locator] MDF7B (Board to Board Size 2.54 to 12mm) Part Number CL No. Number of Contacts A C MDF7B- 3P-2.54DSA(**) 547-0304-0-** 3 5 12.7 10.16 10 MDF7B- 5P-2.54DSA(**) 547-0133-9-** 5 12.7 10.16 16.46 6 15.24 12.7 10 MDF7B- 6P-2.54DSA(**) 547-0131-3-** 6 15.24 12.7 16.46 MDF7- 7P-2.54DSA(**) 547-0148-6-** 7 17.78 15.24 10 MDF7B- 7P-2.54DSA(**) 547-0177-4-** 7 17.78 15.24 16.46 MDF7- 8P-2.54DSA(**) 547-0149-9-** 8 20.32 17.78 10 MDF7B- 8P-2.54DSA(**) 547-0178-7-** 8 20.32 17.78 16.46 MDF7- 9P-2.54DSA(**) 547-0150-8-** 9 22.86 20.32 10 MDF7B- 9P-2.54DSA(**) 547-0179-0-** 9 22.86 20.32 16.46 MDF7-10P-2.54DSA(**) 547-0039-0-** 10 25.4 22.86 10 MDF7B-10P-2.54DSA(**) 547-0048-1-** 10 25.4 22.86 16.46 MDF7-11P-2.54DSA(**) 547-0151-0-** 11 27.94 25.4 10 MDF7B-11P-2.54DSA(**) 547-0047-9-** 11 27.94 25.4 16.46 MDF7-12P-2.54DSA(**) 547-0043-8-** 12 30.48 27.94 10 MDF7B-12P-2.54DSA(**) 547-0041-2-** 12 30.48 27.94 16.46 MDF7-13P-2.54DSA(**) 547-0152-3-** 13 33.02 30.48 10 MDF7B-13P-2.54DSA(**) 547-0180-9-** 13 33.02 30.48 16.46 MDF7-14P-2.54DSA(**) 547-0153-6-** 14 35.56 33.02 10 MDF7B-14P-2.54DSA(**) 547-0181-1-** 14 35.56 33.02 16.46 MDF7-15P-2.54DSA(**) 547-0018-0-** 15 38.1 35.56 10 MDF7B-15P-2.54DSA(**) 547-0024-3-** 15 38.1 35.56 16.46 MDF7-16P-2.54DSA(**) 547-0111-6-** 16 40.64 38.1 10 MDF7B-16P-2.54DSA(**) 547-0182-4-** 16 40.64 38.1 16.46 NDF7-17P-2.54DSA(**) 547-0154-9-** 17 43.18 40.64 10 MDF7B-17P-2.54DSA(**) 547-0183-7-** 17 43.18 40.64 16.46 YES RoHS 7.62 5.08 16.46 10 MDF7-18P-2.54DSA(**) 547-0022-8-** 18 45.72 43.18 10 MSD7B-18P-2.54DSA(**) 547-0025-6-** 18 45.72 43.18 16.46 MDF7-19P-2.54DSA(**) 547-0155-1-** 19 48.26 45.72 10 MDF7B-19P-2.54DSA(**) 547-0184-0-** 19 48.26 45.72 16.46 MDF7-20P-2.54DSA(**) 547-0123-5-** 20 50.8 48.26 10 MDF7B-20P-2.54DSA(**) 547-0052-9-** 20 50.8 48.26 16.46 MDF7-21P-2.54DSA(**) 547-0156-4-** 21 53.34 50.8 10 MDF7B-21P-2.54DSA(**) 547-0185-2-** 21 53.34 50.8 16.46 MDF7-22P-2.54DSA(**) 547-0157-7-** 22 55.88 53.34 10 MDF7B-22P-2.54DSA(**) 547-0186-5-** 22 55.88 53.34 16.46 MDF7-23P-2.54DSA(**) 547-0158-0-** 23 58.42 55.88 10 MDF7B-23P-2.54DSA(**) 547-0066-3-** 23 58.42 55.88 16.46 MDF7-24P-2.54DSA(**) 547-0159-2-** 24 60.96 58.42 10 MDF7B-24P-2.54DSA(**) 547-0067-6-** 24 60.96 58.42 16.46 MDF7-25P-2.54DSA(**) 547-0023-0-** 25 63.5 60.96 10 MDF7B-25P-2.54DSA(**) 547-0026-9-** 25 63.5 60.96 16.46 Note 1: The board to board size in the above table represents the case where the 1.6mm thickness board is used. Note 2: The quantity for delivery is determined per pack (100 pcs.). If needed, please order the products per pack. A74 B Unit: mm YES The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact yourType HiroseConnector sales representative. MDF7 Series2.54mm Pitch Bottom Entry MDF7P (Board to Board Size 2.54 to 8mm) MDF7C (Board to Board Size 5.08 to 15mm,with Locator) Unit: mm Unit: mm Part Number CL No. Number of Contacts MDF7P- 3P-2.54DSA(**) ------- 3 7.62 5.08 12.5 MDF7P- 5P-2.54DSA(**) ------- 5 12.7 10.16 12.5 MDF7C- 5P-2.54DSA(**) 547-0344-4-** MDF7P- 6P-2.54DSA(**) ------- 6 15.24 12.7 12.5 MDF7P- 7P-2.54DSA(**) ------- 7 MDF7P- 8P-2.54DSA(**) ------- 8 MDF7P- 9P-2.54DSA(**) ------- MDF7P-10P-2.54DSA(**) 547-0360-0-** MDF7P-11P-2.54DSA(**) ------- MDF7P-12P-2.54DSA(**) 547-0345-7-** CL No. Number of Contacts MDF7C- 3P-2.54DSA(**) ------- 3 7.62 5.08 19.46 5 12.7 10.16 19.46 MDF7C- 7P-2.54DSA(**) 547-0378-6-** 7 17.78 15.24 19.46 17.78 15.24 12.5 MDF7C- 8P-2.54DSA(**) 547-0375-8-** 8 20.32 17.78 19.46 20.32 17.78 12.5 MDF7C- 9P-2.54DSA(**) ------- 9 22.86 20.32 19.46 ------- 10 25.4 22.86 19.46 11 27.97 25.4 19.46 B C RoHS A B C RoHS 9 22.86 20.32 12.5 MDF7C-10P-2.54DSA(**) 10 25.4 22.86 12.5 MDF7C-11P-2.54DSA(**) 547-0376-0-** 11 27.94 25.4 12 30.48 27.94 19.46 12 30.48 27.94 12.5 MDF7C-13P-2.54DSA(**) 547-0401-6-** 13 33.02 30.48 19.46 12.5 MDF7C-12P-2.54DSA(**) ------- 13 33.02 30.48 12.5 MDF7C-14P-2.54DSA(**) 547-0380-8-** 14 35.56 33.02 19.46 MDF7P-14P-2.54DSA(**) 547-0385-1-** 14 35.56 33.02 12.5 MDF7C-15P-2.54DSA(**) ------- 15 38.1 35.56 19.46 YES MDF7P-15P-2.54DSA(**) 547-0230-5-** 15 38.1 35.56 12.5 MDF7C-16P-2.54DSA(**) ------- 16 40.64 38.1 19.46 MDF7P-16P-2.54DSA(**) 547-0346-0-** 16 40.64 38.1 MDF7C-17P-2.54DSA(**) ------- 17 43.18 40.64 19.46 MDF7P-13P-2.54DSA(**) ------- Part Number A 12.5 YES MDF7P-17P-2.54DSA(**) ------- 17 43.18 40.46 12.5 MDF7C-18P-2.54DSA(**) 547-0029-7-** 18 45.72 43.18 19.46 MDF7P-18P-2.54DSA(**) ------- 18 45.72 43.18 12.5 MDF7C-19P-2.54DSA(**) 547-0361-3-** 19 48.26 45.72 19.46 19 48.26 45.72 12.5 MDF7C-20P-2.54DSA(**) 547-0198-4-** 20 50.8 48.26 19.46 MDF7P-19P-2.54DSA(**) 547-0347-2-** MDF7P-20P-2.54DSA(**) ------- 20 50.8 48.26 12.5 MDF7C-21P-2.54DSA(**) ------- 21 53.34 50.8 19.46 MDF7P-21P-2.54DSA(**) ------- 21 53.34 50.8 12.5 MDF7C-22P-2.54DSA(**) ------- 22 55.88 53.34 19.46 MDF7P-22P-2.54DSA(**) ------- 22 55.88 53.34 12.5 MDF7C-23P-2.54DSA(**) ------- 23 58.42 55.88 19.46 MDF7P-23P-2.54DSA(**) ------- 23 58.42 55.88 12.5 MDF7C-24P-2.54DSA(**) ------- 24 60.96 58.42 19.46 MDF7P-24P-2.54DSA(**) ------- 24 60.96 58.42 12.5 MDF7C-25P-2.54DSA(**) 547-0305-2-** 25 63.5 60.96 19.46 25 63.5 60.96 12.5 MDF7P-25P-2.54DSA(**) 547-0348-5-** Note 1: The board to board size in the above table represents the case where the 1.6mm thickness board is used. Note 2: A quantity for delivery is determined per pack (100 pcs.). If needed, please order the products per pack. Note 3: As for the products, which HRS No. is not indicated in the above table, we will correspond to samples, and mass-production according to your demand. Please contact HRS company, as required. A75 The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or willBottom be discontinued soon.Type PleaseConnector check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact your Hirose sales representative. MDF7 Series2.54mm Pitch Entry Single-Row Right Angle Pin Header [Specific No.] -* *, (* *) (55) :Tin plated (56) :Gold plated Board Through-hole Diameter: O1.0++0.1 0 Unit: mm Part Number CL No. Number of Contacts A B 10.16 RoHS Part Number CL No. Number of Contacts A MDF7- 5P-2.54DS(**) 547-0160-1-** 5 12.7 MDF7-16P-2.54DS(**) 547-0169-6-** 16 40.64 38.1 MDF7- 6P-2.54DS(**) 547-0161-4-** 6 15.24 12.7 MDF7-17P-2.54DS(**) 547-0170-5-** 17 43.18 40.64 MDF7- 7P-2.54DS(**) 547-0162-7-** 7 17.78 15.24 MDF7-18P-2.54DS(**) 547-0019-3-** 18 45.72 43.18 MDF7- 8P-2.54DS(**) 547-0163-0-** 8 20.32 17.78 MDF7-19P-2.54DS(**) 547-0171-8-** 19 48.26 45.72 MD7F-20P-2.54DS(**) 547-0172-0-** 20 50.8 22.86 YES MDF7-21P-2.54DS(**) 547-0173-3-** 21 53.34 50.8 MDF7- 9P-2.54DS(**) 547-0164-2-** 9 22.86 20.32 MDF7-10P-2.54DS(**) 547-0165-5-** 10 25.4 MDF7-11P-2.54DS(**) 547-0166-8-** 11 27.94 25.4 MDF7-22P-2.54DS(**) 547-0174-6-** 22 55.88 53.34 MDF7-12P-2.54DS(**) 547-0116-0-** 12 30.48 27.94 MDF7-23P-2.54DS(**) 547-0175-9-** 23 58.42 55.88 MDF7-13P-2.54DS(**) 547-0167-0-** 13 33.02 30.48 MDF7-24P-2.54DS(**) 547-0176-1-** 24 60.96 58.42 MDF7-14P-2.54DS(**) 547-0168-3-** 14 35.56 33.02 MDF7-25P-2.54DS(**) 547-0028-4-** 25 63.5 MDF7-15P-2.54DS(**) 547-0027-1-** 15 38.1 35.56 Note: A quantity for delivery is determined per pack (100 pcs.). If needed, please order the products per pack. BApplication Pattern and PCB mounting pattern When the single-row straight pin header is used When the header with locator is used The locator moves as the connector is inserted. When the board to board size is set to MAX To separate clearance between the boards, the operation limit t is defined as the state where the male pin has passed through the receptacle. A76 B When the right angle pin header is used 48.26 60.96 RoHS YES The product information in this catalog is for reference only. Please request the Engineering Drawing for the most current and accurate design information. All non-RoHS products have been discontinued, or will be discontinued soon. Please check the products status on the Hirose website RoHS search at www.hirose-connectors.com, or contact yourType HiroseConnector sales representative. MDF7 Series2.54mm Pitch Bottom Entry Double-Row Straight Pin Header [Specific No.] -* *, (* *) (55) :Tin plated Blank :Gold plated Board Through-hole Diameter: O1.0++0.1 0 MDF7 (Board to Board Size: 2.54 to 5.5mm) Part Number MDF7-12DP-2.54DSA(**) MDF7-14DP-2.54DSA(**) MDF7-16DP-2.54DSA(**) MDF7-20DP-2.54DSA(**) MDF7-22DP-2.54DSA(**) MDF7-24DP-2.54DSA(**) MDF7-26DP-2.54DSA(**) MDF7-30DP-2.54DSA(**) MDF7-34DP-2.54DSA(**) MDF7-40DP-2.54DSA(**) MDF7-46DP-2.54DSA(**) Number of Contacts CL No. 12 547-0034-7-** 14 547-0365-4-** 16 547-0364-1-** 20 547-0114-4-** 22 547-0093-6-** 24 547-0250-2-** 26 547-0251-5-** 30 547-0037-5-** 34 547-0252-8-** 40 547-0253-0-** 46 547-0254-3-** A 15.24 17.78 20.32 25.4 27.94 30.48 33.02 38.1 43.18 50.8 58.42 B 12.7 15.24 17.78 22.86 25.4 27.94 30.48 35.56 40.64 48.26 55.88 MDF7P (Board to Board Size: 2.54 to 8mm) Unit: mm C RoHS 10 10 10 10 10 10 YES 10 10 10 10 10 Part Number MDF7P-12DP-2.54DSA(**) MDF7P-14DP-2.54DSA(**) MDF7P-16DP-2.54DSA(**) MDF7P-20DP-2.54DSA(**) MDF7P-22DP-2.54DSA(**) MDF7P-24DP-2.54DSA(**) MDF7P-26DP-2.54DSA(**) MDF7P-30DP-2.54DSA(**) MDF7P-34DP-2.54DSA(**) MDF7P-40DP-2.54DSA(**) MDF7P-46DP-2.54DSA(**) Number of Contacts CL No. 12 547-0407-2-** 14 ------- 16 547-0367-0-** 20 547-0260-6-** 22 547-0261-9-** 24 547-0262-1-** 26 547-0263-4-** 30 547-0264-7-** 34 ------- 40 ------- 46 ------- A 15.24 17.78 20.32 25.4 27.94 30.48 33.02 38.1 43.18 50.8 58.42 B 12.7 15.24 17.78 22.86 25.4 27.94 30.48 35.56 40.64 48.26 55.88 Unit: mm C RoHS 12.5 12.5 12.5 12.5 12.5 12.5 YES 12.5 12.5 12.5 12.5 12.5 Note 1: The board to board size in the above table represents the state where the 1.6mm thickness board is used. Note 2: A quantity for delivery is determined per pack (100 pcs.). If needed, please order the products per pack. Note 3: As for the products, which HRS No. is not indicated in the above table, we will correspond to samples, and mass-production according to your demand. Please contact HRS company, as required. BApplication Pattern and PCB mounting pattern When the double-row straight pin header is used BPrecautions 1. Recommended Soldering Condition Flow Condition by Automatic Soldering Unit Soldering temperature: 2555c, Soldering time: within 10 seconds Manual Soldering Condition Soldering iron temperature: 34010c, Soldering time: within 3 seconds 2. Board Masking If the automatic soldering unit is used, block the pin header through-hole on the receptacle mounted board with the masking tape, etc., and prevent the flux pervasion. In addition, if much flux is adhered so as to affect the contact, please be sure to clean the board. 3. Cleaning Condition Refer to Nylon Connector Use Hand book. 4. Cautions It is impossible to fix the board to the board by the connector only. Please take actions to fix the board without using the connector. If the board deformation could occur due to vibration, please use the gold plating. Don't use the connector as the top entry. A77