NEW

FX26 Series140℃

Suitable forPowertrain
Applications

FloatingVibration Absorb

High Temp

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Inverter■Features
1. Vibration ResistanceDesign absorbs the amplitude of the boards that occur
in the Z direction (connector mating direction) thatoccurs in a vibration environment.

❶2. Heat Resistance up to 140℃

❷The special contact design enables product use underhigh temperature environments. Additionally the twopoint contact design enhances reliability.

❹3. Board Misalignment Absorption
・X and Y Directions : ±0.7mm Floating Range
・Z Direction : ±0.75mm Effective Mating Length❸

4. Contact Pitch : 1mm

Board Misalignment
Absorption❶ X Direction : ±0.7mm❷ Y Direction : ±0.7mm❸ Z Direction : ±0.75mm

5. Connection Type : Stacking
Height : 15mm/18mm/20mm/23mm/25mm
6. Pin Count Variations : 20/30/40/50/60
7. Rated Current : 0.5A/pin❺

Board Amplitude
Absorption❹ ❺ Vibration Absorption⊿Z：0.05mm

8. Pick and Place Mounting
Dustproof and suction caps are installed on standard
product. (Reel Packaging)

9. Excellent mating performance with largeguide post
Large self-alignment range for easy mating operation.

140℃
Environment
Compatible

2022.81

FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector■Product Specifications
Operating Temperature : -40 to 140℃ (Note 1)

Rated Current : 0.5A

Storage Temperature Range : -10 to 60℃ (Note 2)

Ratings
Rated Voltage : 125V AC/DC (Note 3)

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Items
Specifications
1．Contact Resistance
65mΩ Max.
2．Insulation Resistance 1000MΩ Min.
3．Withstanding Voltage No flashover or breakdown.
4．Mating Durability
Contact resistance : 75mΩ Max.
5．Vibration ResistanceNo electrical discontinuity of 1μs ormore.

6．Shock ResistanceNo electrical discontinuity of 1μs or
more.

7．Moisture Resistance
8．Temperature Cycles
9．Heat ResistanceContact Resistance : 75mΩ Max.
Insulation Resistance : 1000mΩ Min.
Contact Resistance : 75mΩ Max.
Insulation Resistance : 1000MΩ Min.
Contact Resistance : 75mΩ Max.

Operating Humidity Range : 85% Max. relative humidity(No dew condensation)
Storage Humidity Range : 60% Max. relative humidity(No dew condensation)
ConditionsMeasured at 100mA
Measured at 250V DC
375V AC for 1 min.
10 insertion / extraction cycles.
Frequency 50 to 100 → 100 to 150 → 150 to 300Hz
Acceleration 98 → 98 to 294 → 294m/s2, test for 3 hours inthe 3-axis direction for 1 complete cycle. (Note 4)
Acceleration of 980m/s2 ; duration 6ms, sine half-wave,
3 cycles in each of the 3 axes each in both directions.
Left for 1000 hours at 60℃ and 90 to 95% RH
Temperature : -40 → 140℃
Time : 30 → 30min. for 1,000 cycles
Left at 140℃ for 1,000 hours

Note 1 : Includes the temperature rise due to current flow.
Note 2 : Storage refers to to long-term storage of the unused product before mounting on board.
Note 3 : The creepage distance is 32V AC when based on IEC 60664-1 Pollution degree 2.
Note 4 : The board amplitude of the connector mounting portion is kept below 0.05mm.

■Materials / Finish

2

Part
Insulator

Materials
Polyamide Resin

Contact

Copper Alloy

Solder Tab

Phosphor Bronze

Color / Finish
BlackContact Portion : Gold Plating
Mounting Portion : Gold Plating
Pure Tin PlatedStandard
UL94V-0−−FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector

Product Number Structure
Refer to the chart below when determining the product specifications from the product number.
Please select from the product numbers listed in this catalog when placing orders.

●Straight Header❶Series

FX26 - 30 P - 1 SV❶❷❸❹❺●Straight Receptacle❸: Header: Receptacle❹Contact Pitch：1ｍｍ❹❺❻Product Height❻

SV : Straight Type：Mated height [mm] =Numerical value on
the header side + Numerical value on thereceptacle sideConnection Variations Overview[mm]Receptacle20

FX26-**S-1SV2025

FX26-**S-1SV1818

FX26-**S-1SV1523Header

15Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

❷❸Connector Type PS❺Product Type

FX26 - 30 S - 1 SV 20
❶

：FX26

❷No. of Pos.

FX26-**P-1SV(Note 3)

FX26-**P-1SV5
Note 1 : ** correspond to pin counts.
Note 2 : Please contact a Hirose representative for release status.
Note 3 : This type (height 23, 25mm) is a custom product. Please contact a Hirose representative for more information.

3

FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector■Part Dimensions

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

●Straight Header［FX26-**P-1SV］

Recommended Land Pattern Diagram
Ｄ±0.05X

Ｅ

Y
Hole : 2×Ø1.3±0.05

Ａ±0.3

ＦＧＪ

0.05 Y

7.7

Ｈ
P= 1

3.9

Ｃ±0.2
P=1±0.15

15.3

5.1

10.1

9.3

0.05 Y

13.8±0.3(14.3)

Ｂ±0.3

4×2

1.

C

w=0.15±0.03

0.5±0.03

0.05 X

2×2.3±0.05

0.3±0.05

10.15±0.3

Ｋ※Via prohibited area
Pattern prohibited areaEF

0.05 X0Ø1-0.050Ø1.2 -0.05

9.6±0.2

5.6±0.2

1±0.25

Ｄ±0.05

Unit：mm

4Part No.

HRS No.

No. of Pos.

ABCDGH

FX26-20P-1SV

576-1002-0 00

20

21.7 20.6

920

18.7 13.5 11.4 4.5 9.65 19.3

FX26-30P-1SV

576-1003-0 00

30

26.7 25.6

1425

23.7 18.5 16.4

FX26-40P-1SV

576-1004-0 00

40

31.7 30.6

1930

28.7 23.5 21.4 9.5 14.65 29.3 250 pcs per reel

FX26-50P-1SV

576-1005-0 00

50

36.7 35.6

2435

33.7 28.5 26.4

FX26-60P-1SV

576-1006-0 00

60

41.7 40.6

294038.7 33.5 31.4 14.5 19.65 39.3

7JK

Packaging Quantity

12.15 24.3

12 17.15 34.3

FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector■Part Dimensions

Recommended Land Pattern Diagram
Ｄ±0.05X

Ｅ

YＦ

Hole : 2×Ø1.3±0.05

Ａ±0.3

Ｇ
Ｈ

P=1±0.15

P= 1Ｊ
0.05 Y

7.7

Ｃ±0.2

3.9

Ｂ±0.3

15.3

9.3

5.1

10.1

13.8±0.3(14.3)

0.05 Y4×2

1.

C

w=0.15±0.03

0.5±0.03

0.05 X

2×2.3±0.05※0.3±0.05

15.15±0.3

Ｋ0.05 X

Via prohibited area
Pattern prohibited area

5.6±0.2

1±0.25

Ｄ±0.050
Ø1-0.050Ø1.2 -0.05

9.6±0.2

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

［FX26-**P-1SV5］

Unit：mmPart No.

HRS No.

No. of Pos.

A

B

C

DEF

GH

J

K

Packaging Quantity

FX26-20P-1SV5 Upon Request (Note 1)

20

21.7 20.6

920

18.7 13.5 11.4 4.5 9.65 19.3

FX26-30P-1SV5 Upon Request (Note 1)30

26.7 25.6

142523.7 18.5 16.4

FX26-40P-1SV5 Upon Request (Note 1)

40

31.7 30.6

1930

28.7 23.5 21.4 9.5 14.65 29.3 200 pcs per reel

FX26-50P-1SV5 Upon Request (Note 1)

50

36.7 35.6

2435

33.7 28.5 26.4

FX26-60P-1SV560

41.7 40.6

2940

38.7 33.5 31.4 14.5 19.65 39.3

576-1506-0 00

712.15 24.3

12 17.15 34.3

Note 1 : Pin counts with the HRS No. left blank can be developed upon request.
For details contact a Hirose sales representative.

5FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector■Part Dimensions

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

●Straight Receptacle［FX26-**S-1SV20］

Recommended Land Pattern Diagram
Ｄ±0.05ＦX
Ａ±0.3

YHole : 2×Ø1.3±0.05

Ｂ±0.2
P=1±0.15

Ｇ

P= 10.05 Y

0.55±0.03

2.8

1.5

w=0.25±0.05×t=0.15±0.03
C±0.158.8

6.5

7.8±0.3

0.05 Y

0.05 X

3.75±0.15

2×2.2±0.05

0.05 X

16.7±0.3

H

1±0.25

D±0.05(7.8)

0Ø1 -0.05

0Ø1.2 -0.05

6±0.22±0.2

E±0.3

Unit：mm

6Part No.

HRS No.

No. of Pos.

ABCDEF

FX26-20S-1SV20

576-1302-0 00

20

FX26-30S-1SV20

576-1303-0 00

30

FX26-40S-1SV20

576-1304-0 00

FX26-50S-1SV20

576-1305-0 00

FX26-60S-1SV20

576-1306-0 00

GH

20.3

913.4

15.2

19.8

25.3

1418.4

20.2

24.8

40

30.3

1923.4

25.2

50

35.3

2428.4

30.2

60

40.3

2933.435.2

Packaging Quantity

4.5

9.3

18.6

7

11.8

23.6

29.8

9.5

14.3

28.6 200 pcs per reel

34.8

1216.833.639.8

14.5

19.3

38.6

FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector■Part Dimensions

Recommended Land Pattern Diagram
Ｄ±0.05

X
Ａ±0.3

ＦY

Ｂ±0.2

P= 1

Hole : 2×Ø1.3±0.05

P=1±0.15

Ｇ
0.05 Y

0.55±0.03

3.75±0.15

2.8

1.5

w=0.25±0.05×t=0.15±0.03
C±0.158.8

6.5

7.8±0.3

0.05 Y

0.05 X

2×2.2±0.05

0.05 XGH

Packaging Quantity

14.7±0.3

H2±0.2

1±0.25

D±0.05
E±0.30Ø1 -0.05(7.8)
0Ø1.2 -0.05

6±0.2Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

［FX26-**S-1SV18］

Unit：mmPart No.

HRS No.

No. of Pos.

A

BCDE

F

FX26-20S-1SV18

Under Development (Note 1)

20

FX26-30S-1SV18

Under Development (Note 1)

30

20.3

913.4

15.2

19.8

4.5

9.3

18.6

25.3

1418.4

20.2

24.8

7

11.8

23.6

FX26-40S-1SV18

576-1404-0 00

FX26-50S-1SV18576-1405-0 00

40

30.3

1923.4

25.2

29.8

9.5

14.3

28.6 200 pcs per reel

50

35.3

2428.430.2

34.8

1216.833.6FX26-60S-1SV18

Under Development (Note 1)

6040.32933.4

35.2

39.8

14.5

19.3

38.6

Note 1 : Pin counts with the HRS No. left blank are currently under development.
For details contact a Hirose sales representative.

7

FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector■Part Dimensions

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

［FX26-**S-1SV15］

Recommended Land Pattern Diagram
B±0.3

Ｄ±0.05XＦYC±0.2

Ｇ

P= 1Hole : 2×Ø1.3±0.05

0.05 Y

P=1±0.15w=0.25±0.05×t=0.15±0.03
D±0.150.55±0.03

2.8

1.5

8.8

6.5

7.8±0.3

0.05 Y

0.05 X

2×2.2±0.05

3.75±0.15

0.05 X

E±0.05(7.8)

F±0.3

2±0.2

6±0.2

1±0.2511.7±0.3

H0Ø1.2 -0.05

0Ø1 -0.05

Unit：mmPart No.

HRS No.

No. of Pos.

A

B

C

DE

F

FX26-20S-1SV15

Under Development (Note 1)

20

FX26-30S-1SV15

576-1203-0 00

30

FX26-40S-1SV15

Under Development (Note 1)

FX26-50S-1SV15

Under Development (Note 1)

20.3

913.4

15.2

19.8

25.31418.4

20.2

24.8

40

30.3

1923.4

25.2

50

35.3

2428.430.2

FX26-60S-1SV15

Under Development (Note 1)

60

40.3

2933.435.2

Note 1 : Pin counts with the HRS No. left blank are currently under development.
For details contact a Hirose sales representative.

8GHPackaging Quantity

4.5

9.3

18.6

7

11.8

23.6

29.8

9.5

14.3

28.6 250 pcs per reel

34.8

1216.8

33.6

39.8

14.5

19.3

38.6

FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector■Embossed Packaging Diagram●Straight Header［FX26-**P-1SV］［FX26-**P-1SV5］
2±0.15
Ø1.5 ＋0.10

P=24±0.1
P=4±0.1

Embossed Cover Tape.8±0Ø21Ｆ max(Ø80)

1.7 ＋0.15
0Part (With Suction Cap)

Embossed Carrier Tape

(7.3)

(D)

(0.5)

1.5 ＋0.1
0(Ø380)Ｅ＋0.4＋20

Unit：mmPart No.
FX26-**P-1SV
FX26-**P-1SV5

No. of Pos.
20, 3040, 50, 60
20, 3040, 50, 60

A
20.2
26.2
20.2
26.2

B
40.4
52.4
40.4
52.4

C4456
4456

D
13.45
18.45

E
44.4
56.4
44.4
56.4

F50.462.450.462.4

Packaging Quantity
250 pcs per reel
200 pcs per reel

●Straight Receptacle［FX26-**S-1SV20］［FX26-**S-1SV18］［FX26-**S-1SV15］
Embossed Cover Tape

P=20±0.15
P=4±0.12±0.2
Ø1.5 ＋0.10

Ø1±210.

Ø

2Ｆ maxＥ＋0.4＋20(Ø80)

Ｂ±0.1
Ｃ±0.3

80.

3±

Part (With Suction Cap) (5.4)
1.5 ＋0.1
0Embossed Carrier Tape

(Ｄ)

(0.5)

1.7(Ø380)

Ａ±0.3■Reel Diagram＋0.15
0Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Ｂ±0.1
Ｃ±0.30.2
3±Ø1Ａ±0.1■Reel Diagram

Unit：mmPart No.
FX26-**S-1SV20
FX26-**S-1SV18
FX26-**S-1SV15

No. of Pos.
20, 3040, 50, 60
20, 3040, 50, 60
20, 3040, 50, 60

A
20.2
26.2
20.2
26.2
20.2
26.2

B
40.4
52.4
40.4
52.4
40.4
52.4

C
4456
4456
4456

D2018
15E
44.4
56.4
44.4
56.4
44.4
56.4

F
50.4
62.4
50.4
62.4
50.4
62.4

Packaging Quantity
200 pcs per reel
200 pcs per reel
250 pcs per reel

9FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector■Recommended Temperature Profile(Peak Temperature : 250℃ Max.)

260240220℃220200℃

Temperature (℃)

200180160140150℃

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

0(90 to 120 sec.)
Preheating Time(150 to 200℃)(Within 60 sec.)
Soldering Time
(220℃ Min.)<Applicable Conditions>
Test Board Measurements
Material
Solder Composition
Flux Content
Metal Mask Thickness
Reflow Times： 110×85×1.6mm： Glass Epoxy： Sn-3Ag-0.5Cu： 11wt%： 0.15mm： 2 times Max.

※The temperature profile is a reference under the above
conditions. Temperature profile may change dependingon the solder paste types, manufacturers, PCB size,and other soldering materials. Please fully check themounting conditions before use.

■Cleaning Conditions●Cleaning with Organic Solvent
Solvent

Cleaning at Normal Temperature

Heated Cleaning

IPA (Isopropyl Alcohol)○○●Cleaning with Water
When water-type cleaning agents (terpene, alkaline saponification agents) are used, select cleaning agents basedon the 'table of influence' on metals and resins issued by the cleaning agent manufacturer.
Caution : Do not leave the connector with any water content left on it.

●Cleaning Precautions
If flux or cleaning agent remains on the connector during part cleaning with organic solvent and water-based
agents, it may cause deterioration of electrical performance. Confirm cleaning is performed properly.

■Usage Precautions●Securing Boards Together
If the board is supported only by the connector, an excessive load may be applied, causing damage or poor contact.
Use other methods to secure the board other than connectors.

●About Board-to-Board Set Up Dimensions
The dimensions between PCBs shall be within the following range :FX26-**S-1SV**

FX26-**P-1SV**h±0.75mm

h : connector height (15, 18, 20, 23, 25)※The above ±0.75mm intersection is different from board amplitude. Refer to the next page for board amplitude.

10

FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector●Mating Operations Cautions
It is recommended to operate straight and without tilting.
・The mating self-alignment is ±1.2mm in the X and Y directions.
Mate the connector while following the self-alignment guide and without applying excessive force.

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

±1.2mm±1.2mm

X Direction (Length)

Y Direction (Width)※Rotational insertion and extraction are not recommended as it may damage the connector.

・To prevent incomplete mating or mating failure, install a backup on the back surface of the connector mounting portion
during mating. Fix the board with screws after mating it securely.

Spacer●Permissible Misalignment in the Mated State (Floating Range)
This connector is designed to float when mated, with a permissible misalignment of ±0.7mm in both the X andY directions.
However, it is not applicable to absorbing when the misalignment amount is continually changing due tovibration, etc. Be sure to secure PCBs after mating.
±0.7mm±0.7mmFloating Side(Header Side Connector)

X Direction (Length Side)Y Direction (Width Side)●Board Amplitude Under Vibration Conditions
This connector can absorb the board amplitude in the Z direction (connector mating direction).
However, it cannot absorb any vibration in the Z direction. The maximum absorption is 0.05mm.
Make a board design that suppresses the amplitude (Amount of change in height between substrates) of theconnector mounting portion to 0.05mm or less under a vibration environment in use.
Also, design the fastening position, fastening method and case.
・Pay attention to board resonance.
・When frequency exceeds 1000Hz under constant and sweep vibrations, reduce the acceleration applied to theconnector and connector mating portion to 5G or less.

11

FX26 Series●140℃ Heat and Vibration Resistant Board-to-Board Floating Connector

Aug.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

MEMO：

2-6-3,Nakagawa Chuoh,Tsuzuki-Ku,Yokohama-Shi 224-8540,JAPANhttps://www.hirose.com/

12

The characteristics and the specifications contained herein are for reference purpose. Please refer to the latest customer drawings prior to use.
The contents of this catalog are current as of date of 08/2022. Contents are subject to change without notice for the purpose of improvements.