LM124DR from UMW, in a SOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	1OUT	output	Output of op-amp 1. Push-pull output stage capable of driving loads to within ~1.5V of VCC (high-level) and near GND (low-level, ~5mV typical with RL≤10kΩ).
2	1IN-	input	Inverting (negative) input of op-amp 1. Input common-mode range includes ground (0 to VCC-1.5V typical). Input bias current typ -20 nA.
3	1IN+	input	Non-inverting (positive) input of op-amp 1. Input common-mode range includes ground (0 to VCC-1.5V typical).
4	VCC	power_in	Positive supply voltage. Single-supply operation: 3V to 32V (26V max for LM2902). Dual-supply operation: ±1.5V to ±16V (±13V for LM2902). Typical quiescent current 0.8 mA.
5	2IN+	input	Non-inverting (positive) input of op-amp 2. Input common-mode range includes ground.
6	2IN-	input	Inverting (negative) input of op-amp 2. Input common-mode range includes ground.
7	2OUT	output	Output of op-amp 2. Push-pull output stage; short-circuit duration to ground is unlimited (TA=25°C, VCC≤15V).
8	3OUT	output	Output of op-amp 3.
9	3IN-	input	Inverting (negative) input of op-amp 3.
10	3IN+	input	Non-inverting (positive) input of op-amp 3.
11	GND	power_in	Ground / negative supply reference. All voltages (except differential and IOS test) are with respect to this network GND.
12	4IN+	input	Non-inverting (positive) input of op-amp 4.
13	4IN-	input	Inverting (negative) input of op-amp 4.
14	4OUT	output	Output of op-amp 4.

Key specifications

Parameter	Value
Manufacturer	UMW
Package	SOP-14
Category	Op-amp/Cmp
Pins	14

Ordering variants

Same part, different packaging or reel option.

LM124DR
LM124DRD
LM124DRN
LM124DRPWR
LM124DRPW

CAD (KiCad official)

Symbol: LM124DR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOP-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm124dr.step`	195 KB	You want the bare part, or you mark your own boards.
`lm124dr-etched.step`	1.7 MB	You want the part with `LM124DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 437 faces against 237 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: UMW datasheet (13 pp, sha256 788d49747ca05cb8, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF