TS5A3159QDBVRQ1 - 1.3Ω SPDT Analog Switch | TI | AEC-Q100
MPN: TS5A3159QDBVRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.55 | $0.55 |
| 10 | $0.47 | $4.70 |
| 100 | $0.39 | $39.00 |
| 500 | $0.35 | $175.00 |
| 1,000 | $0.31 | $310.00 |
Drop-in alternatives for TS5A3159QDBVRQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TS5A3159DBVR
✅ Drop-In✓ In Stock
$0.28 / Unit
View Datasheet →TS5A3159ADBVT
✅ Drop-In📋 Reference alternative (not in catalog)
TS5A3160DBVT
✅ Drop-In📋 Reference alternative (not in catalog)
TS5A4595DBVR
⚡ Same Package📋 Reference alternative (not in catalog)
74LVC1G3157
⚡ Same Package📋 Reference alternative (not in catalog)
TS5A3159QDBVRQ1 Maximum Ratings & Electrical Characteristics
| Configuration | 1 x SPDT (2:1) |
| Number of Channels | 1 |
| ON-State Resistance (Max) | 1.3 ohm |
| ON-State Resistance (Typ) | 1 ohm (0.7 ohm typ per Xecor comparison data) |
| Supply Voltage Range | 1.65 V to 5.5 V |
| Logic Supply Voltages | 1.8 V, 2.5 V, 3.3 V, 5 V |
| ON Capacitance (Typ) | 8 pF to 10 pF |
| Switching Feature | Break-before-make |
| THD | Excellent (low distortion per TI product page) |
| Automotive Qualification | AEC-Q100 (-Q1) |
| Package | SOT-23-6 (DBV) |
| Mounting Type | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL level] |
TS5A3159QDBVRQ1 Pin Configuration
| Pin 1 | NO — Normally-open throw terminal |
| Pin 2 | GND — Ground |
| Pin 3 | COM — Common terminal (source/drain) |
| Pin 4 | IN — Digital logic control input (channel select) |
| Pin 5 | V+ — Power supply, 1.65 V to 5.5 V |
| Pin 6 | NC — Normally-closed throw terminal |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TS5A3159QDBVRQ1 is suitable for 6 applications: Automotive Audio Source Selection, Sensor Signal Multiplexing, Automotive ECU Communication Line Sharing, Portable and Battery-Powered Devices, Industrial Signal Gating, Test and Measurement Signal Routing.
Automotive Audio Source Selection
The TS5A3159QDBVRQ1's 1Ω typ ON-resistance and low THD make it ideal for routing audio signals between sources (AUX, microphone, tuner) into an automotive amplifier input. Its 1.3Ω max Ron adds negligible insertion loss even with low-impedance source impedances, and the break-before-make action eliminates clicks and pops during source switching. AEC-Q100 qualification satisfies automotive OEM reliability requirements. Place the switch close to the head-unit input with short traces to preserve bandwidth and minimize crosstalk.
Recommended
Sensor Signal Multiplexing
In battery-management and body-control modules, one precision ADC input often must serve multiple sensors. The TS5A3159QDBVRQ1 routes each sensor output to the converter with only 1Ω typ of series resistance, preserving measurement accuracy for low-impedance sensor outputs. The 1.65 V to 5.5 V supply range matches common 3.3 V and 5 V ADC front ends. The 8-10 pF ON capacitance sets acquisition-network settling; allow adequate ADC sampling time or add a buffer amplifier after COM.
Recommended
Automotive ECU Communication Line Sharing
The switch can connect one microcontroller UART or GPIO to two different transceiver paths, sharing scarce MCU pins across redundant or optional interfaces. With 1.65 V to 5.5 V operation, it interfaces cleanly with 3.3 V and 5 V logic domains. Break-before-make prevents bus contention glitches during path changeover. Keep switched digital traces short and verify that signal edge rates remain within the switch bandwidth to avoid added rise-time degradation.
Recommended
Portable and Battery-Powered Devices
In handheld and wearable systems, the TS5A3159QDBVRQ1 switches headphone, microphone, or accessory-detect lines while operating down to 1.65 V, compatible with single-cell lithium and low-voltage rails. Its tiny SOT-23-6 footprint (about 3x3 mm including lands) suits dense portable layouts, and low Ron preserves audio loudness with low-impedance sources. THD performance keeps the audio path clean for consumer listening quality.
Recommended
Industrial Signal Gating
Factory automation IO modules use SPDT switches to gate analog or digital signals between redundant controllers and field wiring. The TS5A3159QDBVRQ1 offers low-loss routing (1Ω typ) and robust logic-compatible control across 1.8-5 V rails. Its wide supply tolerance tolerates industrial rail variation, and the break-before-make function prevents momentary signal shorts during redundancy switchover. Consider series protection for field-side transients beyond the switch absolute maximum ratings.
Recommended
Test and Measurement Signal Routing
Bench instruments and probe accessories use analog switches for range selection and path routing. The TS5A3159QDBVRQ1's flat 1Ω Ron and low ON capacitance (8-10 pF typ) minimize measurement error at moderate frequencies, while the 5.5 V maximum supply covers standard logic-domain fixtures. The Q1-qualified die gives additional confidence in switching repeatability over temperature. Calibrate out residual Ron in precision paths and keep ground returns solid to limit switching transients.
Recommended
Recommended Products Summary
Engineering reference data for TS5A3159QDBVRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TS5A3159DBVR | TS5A3159ADBVT | TS5A3160DBVT | 74LVC1G3157 |
|---|---|---|---|---|---|
| Package | SOT-23-6 (DBV) | SOT-23-6 (DBV) - same | SOT-23-6 (DBV) - same | SOT-23-6 (DBV) - same | SOT-23-6 - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Configuration | 2:1 SPDT | 2:1 SPDT | 2:1 SPDT | 2:1 SPDT | 2:1 SPDT |
| Supply Voltage Range | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V |
| ON-Resistance | 1 ohm typ / 1.3 ohm max | 1 ohm typ / 1.3 ohm max | 0.7 ohm typ | 1 ohm typ | about 6 ohm |
| Logic Control Polarity | Active-high IN | Active-high IN | Active-high IN | Active-low IN | Active-high select |
| Automotive Grade (AEC-Q100) | Yes (-Q1) | No | No | No | No |
| Price (1 unit, as of 2026-08-29) | about $0.40-$0.55 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- AEC-Q100 automotive qualification (vs TS5A3159DBVR)
- Low ON-resistance (1.3 ohm max) (vs 74LVC1G3157)
- Active-high logic control (vs TS5A3160DBVT)
Design Notes
Place the TS5A3159QDBVRQ1 close to the signal source and keep NO/NC/COM traces short. Parasitic trace capacitance adds to the 8-10 pF typ ON capacitance and directly reduces bandwidth and increases settling time for ADC acquisition networks. Use a solid ground plane under the switch and place a 100 nF ceramic decoupling capacitor within 2 mm of the V+ pin (pin 5).
The break-before-make action protects against channel shorting but does not protect against signals exceeding the supply rails. Ensure analog signals on NO, NC, and COM stay within 0 V to V+ at all times, including during fault or power-down conditions; use clamp diodes or a supply-sequencing scheme if signals can be present when V+ is absent. Unused throw terminals should be terminated, not left floating, to limit crosstalk and ESD exposure.
For audio path switching, source impedance interacts with Ron to form a divider: with a 1.3Ω max Ron and a 600Ω source, attenuation is under 0.01 dB, but with very low-impedance (<50Ω) sources even 1Ω Ron causes measurable level error. The digital IN control edge can couple charge into COM; add a small RC (e.g., 100Ω/1 nF) on sensitive analog nodes if switching-click artifacts appear in audio applications.
Compliance Information
RoHS compliant per distributor listings. -Q1 suffix denotes AEC-Q100 qualification per TI product page. REACH and halogen-free status not stated in provided data.
