DG412DQ-T1-E3 from Vishay, in a TSSOP-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	TTL/CMOS logic control input for switch 1. Logic '0' ≤ 0.8 V (SW1 OFF), logic '1' ≥ 2.4 V (SW1 ON). Input current ±0.5 µA max.
2	D1	passive	Analog drain terminal of switch 1. Bidirectional analog signal terminal, ±15 V analog range, RDS(on) ≈ 25 Ω. Conducts equally well in both directions when ON.
3	S1	passive	Analog source terminal of switch 1. Bidirectional analog signal terminal, ±15 V analog range. Continuous current 30 mA max, peak 100 mA (1 ms, 10% DC).
4	V-	power_in	Negative analog supply. Typically -15 V; V+ to V- must not exceed 44 V. Sets negative rail of analog signal range.
5	GND	power_in	Ground reference. GND to V- limited to 25 V max.
6	S4	passive	Analog source terminal of switch 4. Bidirectional analog signal terminal, ±15 V analog range.
7	D4	passive	Analog drain terminal of switch 4. Bidirectional analog signal terminal, ±15 V analog range, RDS(on) ≈ 25 Ω.
8	IN4	input	TTL/CMOS logic control input for switch 4. Logic '0' ≤ 0.8 V (SW4 OFF), logic '1' ≥ 2.4 V (SW4 ON).
9	IN3	input	TTL/CMOS logic control input for switch 3. Logic '0' ≤ 0.8 V (SW3 OFF), logic '1' ≥ 2.4 V (SW3 ON).
10	D3	passive	Analog drain terminal of switch 3. Bidirectional analog signal terminal, ±15 V analog range, RDS(on) ≈ 25 Ω.
11	S3	passive	Analog source terminal of switch 3. Bidirectional analog signal terminal, ±15 V analog range.
12	VL	power_in	Logic supply voltage (typically +5 V). Powers the TTL/CMOS-compatible digital control interface. Range (GND - 0.3) to (V+) + 0.3.
13	V+	power_in	Positive analog supply. Typically +15 V; V+ to V- must not exceed 44 V. Sets positive rail of analog signal range.
14	S2	passive	Analog source terminal of switch 2. Bidirectional analog signal terminal, ±15 V analog range.
15	D2	passive	Analog drain terminal of switch 2. Bidirectional analog signal terminal, ±15 V analog range, RDS(on) ≈ 25 Ω.
16	IN2	input	TTL/CMOS logic control input for switch 2. Logic '0' ≤ 0.8 V (SW2 OFF), logic '1' ≥ 2.4 V (SW2 ON).

Key specifications

Parameter	Value
Manufacturer	Vishay
Package	TSSOP-16
Category	Comm/UART
Pins	16

Ordering variants

Same part, different packaging or reel option.

DG412DQ-T1-E3DQ-E3
DG412DQ-T1-E3
DG412DQ-T1-E3DJ
DG412DQ-T1-E3DJ-E3
DG412DQ-T1-E3DY
DG412DQ-T1-E3DY-E3
DG412DQ-T1-E3DY-T1
DG412DQ-T1-E3DY-T1-E3

CAD (KiCad official)

Symbol: DG412DQ-T1-E3
Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
3D model: TSSOP-16 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Vishay datasheet (14 pp, sha256 7d2688acee1bfd79, 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