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Discrete Wire for Connection, DF1E Series (2.5 mm Pitch)【1-100 Pieces Per Package】

Discrete Wire for Connection, DF1E Series (2.5 mm Pitch)
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Product Description

A board-to-cable, cable-to-cable connector with a lock (2.5-mm pitch). The inner locking type mechanism prevents the connector from disconnecting due to impact.
In-stock items are custom products, therefore returns and cancellations are not possible. Thank you.

Main Features of DF1E Series 2.5‑mm Pitch Board-to-Cable Connector With Lock

Added full-lock function / Inner-lock system full-lock mechanism / Mis-insertion prevention

Added full-lock function / Inner-lock system full-lock mechanism / Mis-insertion prevention

Can be double locked

Can be double locked

Added full-lock function

The full-lock mechanism features an inner lock system. This mechanism prevents disengagements due to unexpected external shock.

Increase in crimping contact fixation force and semi-insertion prevention

The double lock is activated for the usage method in which stress is applied to the cable, to increase crimping contact fixation force, and to prevent the semi-insertion (incomplete insertion) of the crimping contact.

Adopts a molded lance

A molded lance has been adopted as the contact lances may become deformed due to terminal entanglement after crimping.

Prevents mis-insertion

Equipped with a mechanism which completely prevents reverse insertion and insertion between dissimilar contacts.

Solder crack prevention measures

Glass-reinforced resin has been adopted for the pin header as a measure against solder cracking caused by heat shrinkage.

Potting (resin filler) compatible

Pin headers in which potting is possible are available in the product lineup. Low-profile (in-house comparison) models with a mounting height of 19.8 mm (no retainer) compatible with potting of up to 8 mm are available.

Reduced production equipment costs

Because DF1B series crimping contacts are used for the female contacts, there is no need to invest in new equipment. However, if applying a retainer with a wire of AWG#22 or higher, please use DF1E crimp contacts. Female in-line crimp contacts are used in combination with DF1B applicators so there is no need to investment in new equipment.

Wide range of applications

Circuit board soldered DIP types and in-line types with a wide range of applications are available within the same product series.

Compliant with UL and C-UL standards
Supports use with glow wires (compliant with IEC 60695-2-11)

Product Standards

RatingRated Current (Note 1)
AWG#20 to 24: 3 A
26: 2 A
28: 1 A
30: 0.5 A
Rated Voltage 250 V AC
Operating temperature range: -35 to +85°C (Note 2)
Operating humidity range 40 to 80%
Storage temperature range -10 to +60°C (Note 3)
Storage humidity range 40 to 70% (Note 3)
Ratings of UL and C-UL Standard Compliant Products
RatingRated CurrentAWG#20 to 22: 3 A
AWG#24 to 28: 1 A
AWG#30: 0.5 A
Rated voltage30 V AC

UL, C-UL File No. E52653
(C-UL applicable country: Canada / UL applicable country: U.S.A.)

ItemStandardConditions
1. Contact resistance30 mΩ or lessMeasure at 20 mV or less and 1 mA
2. Insulation resistance1,000 MΩ or moreMeasure at 500 V DC
3. Withstand VoltageThere shall be no flashover or dielectric breakdown.Apply 650 V AC of voltage for 1 min.
4. Single unit insertion/extraction forceMin. 0.29 N, Max. 4.41 NMeasure using a steel pin of □0.635 ±0.002
5. Durability (insertion/extraction)30 mΩ or less30 insertions and extractions
6. Vibration resistanceThere shall be no discontinuity for 1 μs or greater.Frequency: 10 to 55 Hz, Single amplitude: 0.75 mm. Three directions, 2 hours
7. Shock resistanceThere shall be no discontinuity for 1 μs or greater.Acceleration: 490 m/s2, 11 ms, Half sine wave, Three times each in 3 directions
8. Humidity resistance30 mΩ or lessLeave at temperature 40°C ±2°C and humidity 90 to 95% for 96 hours
9. Temperature cycle30 mΩ or less(-55°C: 30 mins > 5 to 35°C: 5 mins > 85°C: 30 mins > 5 to 35°C: 5 mins) 5 cycles
10. Solder Heat ResistanceNo deformation of components affecting performance.Flow: 260°C, 10 seconds
Manual soldering - Soldering iron temperature: 300°C for 3 seconds

Note 1: The rated current may vary depending on the wire size used. The rating of the header is 3 A.
(Note 2) This includes temperature increases caused by the flow of current.
(Note 3) The term "storage" refers to products stored for long periods of time prior to mounting and use. The operating temperature and humidity range are applicable in a non-energized state after board mounting.

Product Specifications

Connector TypeContacts, sockets, headers, in-line plugs, accessories
Compliance StandardsJIS, IEC
Number of Contacts2, 10, 11, 12, 13, 14, 15, 3, 4, 5, 6, 7, 8, 9
No. of Rows (Mating Part)1
Mounting Pitch3 mm
Opening Pitch2.5 mm
Rated Current3 A
Rated Voltage (AC)250 V AC
Number of Matings and Un-Matings30, 50
Board Mounting MethodThrough-hole DIP
Opening DirectionStraight
Board Mounting StyleStandard on-board
Panel Mounting MethodSnap-in
Contact PlatingGold, tin
Wiring MethodCrimp
Compatible Wire TypeDiscrete wire
Compatible Wire Size (AWG) Min.AWG 22, 28
Compatible Wire Size (AWG) Max.AWG 20, 24
Operating Temperature Range (Max.)85°C
Operating Temperature Range (Min.)-35°C
Glow Wire CompatibleYes

Product Materials

ProductPart NameMaterialsFinishFlame-Retardant Standard
SocketInsulatorPolyamide resinNatural (white)UL94V-0
HeaderInsulatorPolyamide resin (glass-reinforced)Natural (beige)UL94V-0
ContactsBrassTin or gold plated-
In-line plugInsulatorPolyamide resinNatural (white)UL94V-0
RetainerInsulatorPolyamide resinBlackUL94V-0
Crimp contactContactsPhosphor bronzeTin or gold plated-

Product Usage Precautions

1. Recommended soldering conditions

  • Flow conditions for automatic soldering devices - Solder temperature: 260°C, Soldering time: within 10 seconds
  • Manual soldering conditions - Soldering iron temperature: 300°C, Soldering time: within 3 seconds

2. Cleaning conditions

  • If washing with potting-compatible headers, be aware that any residual cleaning solutions within the connector may cause malfunctions to occur.

3. Precautions

  • Forcible extraction of connectors may cause connector damage to occur. If extraction is difficult, gently push in the connector and engage the lock to facilitate extraction.
  • Depending on the wiring layout within equipment, tension may be applied to the wires, possibly causing the contacts to become disengaged. The manufacturer recommends the use of a retainer when this happens.
  • Incomplete insertion of the contact can be prevented by mounting a retainer; however, mounting of a retainer might not be possible when the contact protrudes beyond the socket. Insert the contact securely and then mount the retainer.
  • If the potting process is implemented, be sure to fill the connector with resin with due consideration given to the surface tension of the resin.
  • Depending on the manufacturing lot of this product or its storage state following manufacture, the color/hue of the product may change slightly. However, this does not affect performance.
Part Number
DF1E-2EP-2.5C
DF1E-3EP-2.5C
DF1E-3P-2.5DS(05)
DF1E-4EP-2.5C
DF1E-5EP-2.5C
DF1E-6EP-2.5C
DF1E-8EP-2.5C
DF1E-9EP-2.5C
DF1E-10EP-2.5C
DF1E-10P-2.5DS(05)
DF1E-2022PC
DF1E-2428PC
DF1EA-2EP-2.5C
DF1EA-3EP-2.5C
DF1EA-4EP-2.5C
DF1EA-5EP-2.5C
DF1EA-6EP-2.5C
DF1EA-10EP-2.5C
DF1EC-7P-2.5DSA(05)
DF1EC-9P-2.5DSA(05)
DF1EC-11P-2.5DSA(05)
DF1EC-13P-2.5DSA(05)
Part NumberPriceMinimum Order Qty.Number of pc(s). included in pkg.Volume DiscountDays to ShipApplicable pin/contact Number Of Pins Connector Type Rated Current
(A)
Wiring Method Connection direction Plating of part touching terminal Product Category Specifications Features Conforming wire size
(AWG)
Contact Pitch
(mm)
Wire connection form Terminal pitch
(mm)
Special Notes

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Basic Information

Connector Shape Rectangular Connector series initials D/E/F D/E/F DF
Allowable Voltage(V) AC250 Representative Standard UL / CUL Operating Temperature Range(°C) -35 to +85
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