ALPS Alpine SCDA3A0102 Replacement → KINGCONN 7SDCN-F0-0028, 7SDCN-F0-0037, 7SDCN-F0-1012 | Same-Interface SD card sockets

ALPS Alpine SCDA3A0102 (SD card, inner solder tail without frame legs, push-push) carries the lifecycle status Obsolete at Mouser (checked 2026-09-02). The in-production KINGCONN SD card sockets with the same card interface: 7SDCN-F0-0028, 7SDCN-F0-0037, 7SDCN-F0-1012 (eject mechanism: push-push). The match has been reviewed by KINGCONN R&D; ask KINGCONN before you order — send the original part number or your drawing through the form, and the Taoyuan R&D team confirms pin-out and footprint before you order.

Original part

Brand	ALPS Alpine
Part number	SCDA3A0102
Distributor status	Obsolete source: Mouser · checked 2026-09-02
Original description	SD card, inner solder tail without frame legs, push-push
Card interface	SD card sockets
Eject mechanism	push-push

KINGCONN match

7SDCN-F0-0028

Matching basis: same interface · same eject mechanism

Drawing specifications

Current rating	0.5 Amperes DC(per pin)
Operating temperature	-25°C ~ 85°C
Housing material	LCP UL 94V-0
Contact material	Copper alloy
Shell material	Stailess steel
Plating	Gold Flash Plated At Contact Area, Tin Plated At Solded Area,Nickel Underplated Overall
UL flammability rating	UL 94V-0
Housing colour	Black
RoHS	compliant

Source: engineering drawing for this part number

Part page & drawing →

7SDCN-F0-0037

Matching basis: same interface · same eject mechanism

Drawing specifications

Operating voltage	3.3V
Current rating	0.5A MAX.
Withstand voltage	500V AC 1 MINUTE.
Contact resistance	100 mOHMS MAX.
Operating temperature	-25°C~85°C
Durability	10000 CYCLES.
Housing material	LCP
Contact material	PH/BR
Shell material	SUS304
Housing colour	BLACK
RoHS	compliant

Source: engineering drawing for this part number

Part page & drawing →

7SDCN-F0-1012

SD, H=2.85mm

Matching basis: same interface · same eject mechanism

Drawing specifications

Mated height	2.85 mm
RoHS	compliant

Source: engineering drawing for this part number

Part page & drawing →

What to verify before ordering

Pin assignment and pad layout: the same interface does not guarantee the same pin order.
Hold-down positions and termination style (SMT / through-hole).
Presence and polarity of the card-detect and write-protect switches.
Mated height and card-insertion direction: both published values are shown side by side; judge the difference yourself.

Frequently asked questions

What is the KINGCONN replacement for ALPS Alpine SCDA3A0102?

7SDCN-F0-0028, 7SDCN-F0-0037, 7SDCN-F0-1012 — SD card sockets with the same interface · same eject mechanism. The match has been reviewed by KINGCONN R&D; ask KINGCONN before ordering so R&D can confirm pin-out and footprint.

Is ALPS Alpine SCDA3A0102 discontinued?

The lifecycle field at Mouser lists it as "Obsolete" (checked 2026-09-02). Lifecycle status reflects the distributor listing on the check date and may change.

Is 7SDCN-F0-0028 a drop-in replacement for ALPS Alpine SCDA3A0102?

Not guaranteed. The two share the same interface · same eject mechanism, but pin assignment, hold-down positions and detect-switch polarity can differ — compare the drawings, or send the original part number to KINGCONN R&D for evaluation.

Other discontinued SD card sockets

Molex 5009980900 Obsolete SD card, 9 circuits, top-mount shielded, push-push, 2.50mm pitch
ALPS Alpine SCDA9A0400 Obsolete SD card, standard type, inner solder tail, push-push
ALPS Alpine SCDABA0801 Obsolete SD card, standard type, long-stroke push-push (7.5mm), with stand-off
ALPS Alpine SCDABA0101 Obsolete SD card, standard type, long-stroke push-push (7.5mm), 0mm stand-off
ALPS Alpine SCDA3A0100 Obsolete SD card, standard mount, inner solder tail without frame legs, 0mm stand-off
ALPS Alpine SCDA7A0101 Obsolete SD card, push-push
ALPS Alpine SCDA6A0101 Obsolete SD card, slim type
ALPS Alpine SCDA2A0100 Obsolete SD / MultiMediaCard, 0mm stand-off
ALPS Alpine SCDA8A0201 Obsolete SD / MultiMediaCard, reverse mount, push-push
ALPS Alpine SCDA2A0101 Obsolete SD / MultiMediaCard, reverse mount, 0mm stand-off

Full cross-reference table → · Part not listed? Paste any brand's part number into the Second Source Finder, or read the discontinued-connector replacement guide.

Molex and ALPS Alpine are trademarks of their respective owners, used here only to identify original part numbers; KINGCONN Technology is not affiliated with either company. Lifecycle status reflects distributor listings on the check date and may change.
Last verified: 2026-09-02