DG211BDY-T1-E3 from Vishay, in a SOIC-16. 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	IN1	input	Digital control input for switch 1. TTL/CMOS compatible; VINH ≥ 2.4 V (logic 1) opens the switch on DG211B, VINL ≤ 0.8 V (logic 0) closes it. Input current ±1 µA max, input capacitance ~5 pF.
2	D1	passive	Drain terminal of analog switch 1. Bidirectional analog signal terminal; connects to source S1 when switch is ON. Signal range ±15 V typical (V+ = +15 V, V- = -15 V); RDS(on) ~45 Ω typ.
3	S1	passive	Source terminal of analog switch 1. Bidirectional analog signal terminal paired with D1. Continuous current rating 30 mA; signals exceeding V+ or V- are clamped by internal diodes.
4	V-	power_in	Negative analog supply rail. Typical -15 V for dual-supply operation; supports down to -22 V absolute max. Sets the negative limit of the analog signal range.
5	GND	power_in	Ground reference for digital logic and single-supply operation. Referenced to V+ up to 25 V max. In single-supply mode V- is tied to GND.
6	S4	passive	Source terminal of analog switch 4. Bidirectional analog signal terminal paired with D4.
7	D4	passive	Drain terminal of analog switch 4. Bidirectional analog signal terminal; connects to S4 when switch is ON.
8	IN4	input	Digital control input for switch 4. TTL/CMOS compatible logic-level input; controls D4-S4 channel per truth table (logic 1 opens on DG211B).
9	IN3	input	Digital control input for switch 3. TTL/CMOS compatible; controls D3-S3 channel per truth table.
10	D3	passive	Drain terminal of analog switch 3. Bidirectional analog signal terminal paired with S3.
11	S3	passive	Source terminal of analog switch 3. Bidirectional analog signal terminal paired with D3.
12	VL	power_in	Logic supply rail for digital inputs. Typically +5 V; sets the reference level for the TTL/CMOS input thresholds (VINH ≥ 2.4 V, VINL ≤ 0.8 V). Logic supply current IL ~10 µA typical.
13	V+	power_in	Positive analog supply rail. Typical +15 V for dual-supply operation; supports up to +22 V absolute max. Sets the positive limit of the analog signal range.
14	S2	passive	Source terminal of analog switch 2. Bidirectional analog signal terminal paired with D2.
15	D2	passive	Drain terminal of analog switch 2. Bidirectional analog signal terminal paired with S2.
16	IN2	input	Digital control input for switch 2. TTL/CMOS compatible; controls D2-S2 channel per truth table.

Key specifications

Parameter	Value
Manufacturer	Vishay
Package	SOIC-16
Category	Interface
Pins	16

Ordering variants

Same part, different packaging or reel option.

DG211BDY-T1-E3
DG211BDY-T1-E3DY-E3
DG211BDY-T1-E3DJ
DG211BDY-T1-E3DJ-E3
DG211BDY-T1-E3DQ
DG211BDY-T1-E3DQ-T1
DG211BDY-T1-E3DQ-E3
DG211BDY-T1-E3DQ-T1-E3

CAD (KiCad official)

Symbol: DG211BDY-T1-E3
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`dg211bdy-t1-e3.step`	217 KB	You want the bare part, or you mark your own boards.
`dg211bdy-t1-e3-etched.step`	2.6 MB	You want the part with `DG211BDY-T1-E3` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 671 faces against 267 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: Vishay datasheet (14 pp, sha256 d32f2a163665a3fd, retrieved 2026-08-17, tier: manufacturer)
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