FD Series Electrical Connector

Mechanical Performance

Shell	Aluminum alloy
Contact	Gold-plated, copper alloy, welding type
Mechanical life	300 cycles

Sinusoidal Vibration

Sinusoidal Vibration	P/N
10Hz~2000Hz, Acceleration 98 m/s²	FD-2/20/26/50, FDA-20
10Hz~2000Hz, Acceleration 98 m/s²	A FD-2A/2B, FDA-50/50M
10Hz~50Hz, amplitude 2 mm, 50~2000Hz, Acceleration 196 m/s²	J/K FD-2A/2B/20/26/50
	K FD-2A/2B/20/26/50
	CC FD-2A/2B/20/26/50
	F FD-50Tn/Zn, FDB-50
	J/K+ FD-20/26/50
5~16 Hz, Amplitude 1mm, 16~60Hz, Acceleration 10 m/s²	FD-4

Shock

Shock	P/N
490 m/s²	J/K FD-2A/2B/20/26/50
	F FD-50Tn/Zn
	K FD-2A/2B/20/26/50
	CC FD-2A/2B/20/26/50
700 m/s²	FDA-50/50M
735 m/s²	FD-2/20/26/50, FDC-50, FDA-20
735 m/s²	A FD-2A/2B, SG FD-20/50
980 m/s²	J/K+ FD-20/26/50, FDB-50

Acceleration

Acceleration	P/N
85m/s²	FDA-50/50M
98m/s²	A FD-2A/2B, FD-2, J/K FD-2A/2B, CC FD-2A/2B
196m/s²	FD-4
833m/s²	FD-20/26/50, FDA-20, J/K FD-20/26/50, CC FD-20/26/50, F FD-50Tn/Zn, FDB-50> SG FD-20/50
1000m/s²	J/K+ FD-20/26/50

Separation Force

– Unit (N)

P/N	FD-2C	FD-4	FD-2A FD-2B
Separation Force	9.8-29.4	≤25	9.8~49
P/N	FD-20	FD-26/50	FD-26Tn/Zn FD-50Tn/Zn
Separation Force	19.6~59	39.2~78.5	58.8~98
P/N	FDA-20	FDA-50	FDB-50
Separation Force	9.8~68.6	40~100	39.2~98
P/N	J/K+FD-20	J/K+FD-26	J/K+FD-50
Separation Force	28~59	48~78.5	48~78.5

Electrical Performance

Contact Resistance and Rated Current

Working diameter (mm)	Wire hole diameter (mm)	Contact resistance (mΩ)	Rated current (A)
Φ0.8	Φ1.0	≤5	5
Φ0.9	Φ1.4	≤5	5
Φ1.0	Φ1.4	≤5	5
Φ1.2	Φ1.4	≤5	5
Φ1.5	Φ1.8	≤5	10

Insulation Resistance

– Unit (MΩ）

P/N	Normal	High Temperature	Damp
FD-2A/2B/20/26/50 A FD-2A/2B FDA-20 SG FD-20/50	1000	1000	10
CC FD-2A/2B/20/26/50 J/K FD-2A/2B/20/26/50 FDB F FD-50Tn/Zn FD-4	1000	500	20
FD-2C	100	50	10
FDA-50/50M	500	500	10

Withstand Voltage

– Unit (AC Vrms)

P/N	Standard	Damp	Low air pressure
J/K FD-2A/2B CC FD-2A/2B	250 Vrms	150 Vrms	100 Vrms
A FD-2A/2B FD-2A/2B FD-4 FD-2C	250 Vrms	150 Vrms	75 Vrms
FD-20/26/50 J/K FD-20/26/50 F FD-50Tn/Zn CC FD-20/26/50 FDA-20 FDA-50/50M FDB-50 SG FD-20/50	1000 Vrms	500 Vrms	200 Vims

Environmental Performance

Working temperature range

-40°C~+85°C

-55°C~+125°C (FDB)

Working Pressure

222. 9kPa~6. 67Pa

Relative humidity

95%~98% at 40±2°C

Salt fog

96h (FDB)

144h(FD-4)

Order Mark

	J/K	FD	A	20	T	A
Quality Grade: Unmarked – J grade J/K J/K+ – Reliability Growth Class, CC – Space Class F – Reliability Growth Class (for FD-50Tn/Zn), A – Random vibration performance increased (for FD-2)	J/K
Main Code		FD
Configuration Null – flame-proof non-flame-proof plug B – waterproof improvement, with rainproof function			A
Number of Contacts: 2, 4, 20, 26, 50				20
T – Plug Z – Receptacle					T
Type: A – Contact diameter: Φ1.2, Φ0.9 (for FD-2), diamond-shaped flange of socket housing (for FD-20), B – Contact diameter: Φ1.2 (for FD-2), socket Shell square flange (FD-20), C – with cable-type separation plug, n – separation force increased (applicable to FD-26/50), a – improved type (applicable to FD-4), M-sealed socket (applicable to FDA-50M)						A

Specification

Quality Grade	Plug	Mating Receptacle
J	FD-2TA	FD-2ZA
	FD-2TB	FD-2ZB
	FD-2TC	FD-2ZB
	FD-4Ta	FD-4Za
	FD-4T1	FD-4Z
	FD-20T	FD-20ZA/ZB
	FD-20T (Long)	FD-20ZA/ZB
	FDA-20T	FD-20ZA/ZB
	FDA-20T (Long)	FDC-20T
	FD-26T	FD-26Z/Z10
	FD-26T2	FD-26Z/Z10
	FD-26T7	FD-26Z/Z10
	FD-26Tn	FD-26Zn
	FD-50T	FD-50Z
	FD-50Tn	FD-50Zn
	FDA-50T	FDA-50Z
	FDB-50T	FDB-50Z
Reliability Growth Class	A FD-2TA	A FD-2ZA
	A FD-2TB	A FD-2ZB
	J/K FD-2TA	J/K FD-2ZA
	J/K FD-2TB	J/K FD-2ZB
	J/K FD-20T	J/K FD-20ZA/ZB
	J/K FD-26T	J/K FD-26Z
	J/K FD-50T	J/K FD-50Z
	J/K+ FD-20T	J/K+ FD-20ZA/ZB
	J/K+ FD-26T	J/K+ FD-26Z
	J/K+ FD-50T	J/K+ FD-50Z
	F FD-50Tn	F FD-50Zn
Space Class	CC FD-2TA	CC FD-2ZA
	CC FD-2TB	CC FD-2ZB
	CC FD-20T	CC FD-20ZA/ZB
	CC FD-20T (Long)	CC FD-20ZA/ZB
	CC FD-26T	CC FD-26Z
	CC FD-50T	CC FD-50Z
	SG FD-20T	SG FD-20ZA/ZB
	SG FD-50T	SG FD-50Z

Contact Arrangement

FD-2A

FD-2B

FD-2C

FD-4

FD-20

FDC-20

FD Series

FD Series MIL-Spec Connectors