SRV05-4 - 5V 4-Ch Low-Cap TVS Array, 12A 8/20us | onsemi
Teilenummer: SRV05-4 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $0.45 | $0,45 |
| 10 | $0.38 | $3,80 |
| 100 | $0.26 | $26,00 |
| 500 | $0.21 | $105,00 |
| 1.000 | $0.18 | $180,00 |
| 3.000 | $0.15 | $450,00 |
SRV05-4 Übersicht
A TVS diode array is a solid-state silicon-avalanche protection device placed in parallel with sensitive I/O pins; when an overvoltage event exceeds its breakdown threshold, it avalanches to a low impedance and shunts transient current away from the protected device. Within the broader component hierarchy, the SRV05-4 sits under discrete semiconductors, then overvoltage/surge protection, then transient voltage suppressors, then TVS diode arrays, then semiconductor. It is the IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (lightning) compliance gatekeeper for downstream controllers.
Key features include an array of surge-rated diodes with an integrated TVS element, a low operating voltage of 5.0 V that matches common 3.3 V/5 V logic rails, solid-state silicon-avalanche construction with no wear-out mechanism, and a small SOT-23-6 footprint that saves board area versus discrete TVS solutions. The RailClamp-style architecture minimizes capacitance imbalance between channels, reducing inter-symbol jitter on high-speed differential pairs.
Technically, the device integrates steering diodes that route positive transients to the internal Zener/TVS clamp element on the Vcc reference, providing symmetrical ESD protection on every I/O pin relative to ground. The 12 A 8/20 us peak pulse rating corresponds to a peak pulse power in the 80 W range, and the IEC 61000-4-2 ESD rating reaches +/-15 kV air and +/-8 kV contact per the manufacturer datasheet.
Typical applications include USB 2.0/USB-C data line protection, HDMI/DisplayPort TMDS lines, SD card slots, SIM card interfaces, LVDS lines in display panels, and 10/100 Ethernet PHYs. In each case the array's low capacitance keeps the eye diagram closed while the TVS element absorbs the surge.
When designing with the SRV05-4, place the device as close as possible to the external connector to keep the protected trace inductance low, and route the ground connection directly to the chassis/earth ground via a short, wide trace to maximize ESD/eft dissipation. Always observe the maximum working voltage rating to avoid DC leakage during normal operation.
This page synthesizes distributor pricing, drop-in alternatives, parametric comparisons, and practical design notes not aggregated in any single source on the web, intended to give procurement and design engineers a one-stop reference for SRV05-4.
Drop-in-Alternativen für SRV05-4 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
SRV05-4MR6T1G
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SRV05-4MR6G
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SRV05-4.TCT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SRV05-4L-TP
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SRV05-4-P-T7
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SRV05-4HTG-D
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TPD4E1U06
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SRV05-4 Technische Daten
| Manufacturer | onsemi |
| Part Status | Active |
| Type | Steering (Rail to Rail) |
| Unidirectional Channels | 4 |
| Voltage - Reverse Standoff (Typ) | 5 V |
| Voltage - Breakdown (Min) | 6 V |
| Voltage - Clamping (Max) @ Ipp | 17.5 V |
| Current - Peak Pulse (8/20 us) | 12 A |
| Power Line Protection | Yes |
| Capacitance @ Frequency | 3 pF typical |
| ESD Protection (IEC 61000-4-2) | +/-15 kV air, +/-8 kV contact |
| EFT Protection (IEC 61000-4-4) | 40 A (5/50 ns) |
| Lightning Protection (IEC 61000-4-5) | 12 A (8/20 us) |
| Betriebstemperatur | -40C to +85C |
| Montageart | Surface Mount |
| Gehäuse / Bauform | SOT-23-6 (MR6) |
| Supplier Device Package | SOT-23-6 |
| RoHS-Status | Compliant |
| Lead Free | Yes |
SRV05-4 Pin-Konfiguration
| Pin 1 | I/O 1 — Protected I/O line 1 (anode of steering diode) |
| Pin 2 | GND — Ground / chassis ground return |
| Pin 3 | I/O 2 — Protected I/O line 2 (anode of steering diode) |
| Pin 4 | I/O 3 — Protected I/O line 3 (anode of steering diode) |
| Pin 5 | Vcc — 5 V bias / TVS clamp reference |
| Pin 6 | I/O 4 — Protected I/O line 4 (anode of steering diode) |
Typische Anwendungen
SRV05-4 ist geeignet für 7 Anwendungs: USB 2.0 / USB-C Data Line Protection, HDMI / DisplayPort TMDS Protection, SD Card / MicroSD Slot Protection, LVDS Display Panel Interface, SIM Card / Smart Card Reader, 10/100 Ethernet PHY Protection, Industrial Control / Fieldbus Protection.
USB 2.0 / USB-C Data Line Protection
The SRV05-4's 3 pF typical capacitance keeps USB 2.0 high-speed (480 Mbps) eye diagrams compliant while its 5 V reverse standoff matches Vbus directly without DC leakage. With +/-15 kV air / +/-8 kV contact IEC 61000-4-2 ESD rating and 12 A 8/20 us surge rating, it absorbs plug-discharge events and field-induced transients at the USB-C receptacle. Place the device within 5 mm of the connector and stitch the GND pin directly to the chassis pour; the integrated steering-diode array replaces four discrete TVS units, saving roughly 60% of PCB area versus discrete protection.
Empfohlen
HDMI / DisplayPort TMDS Protection
The SRV05-4 protects four TMDS data lines plus a return path with matched sub-3 pF capacitance that preserves the HDMI 1.4 / DisplayPort 1.2 transition rise-time budget. The 17.5 V clamping ceiling is well above the 5 V TMDS common-mode but below the abs-max of typical HDMI redriver ICs, so transient events are shunted before reaching the retimer/redriver. The SOT-23-6 footprint fits between the HDMI connector and the redriver IC, requiring only a single ground via for the GND pin - the rail-to-rail steering topology handles both positive and negative ESD events symmetrically.
Empfohlen
SD Card / MicroSD Slot Protection
The SRV05-4's 4-channel topology directly maps to the SD card CLK/CMD/DAT0/DAT1 lines, providing matched-channel capacitance that keeps SD UHS-I (104 MHz) timing margins intact. The 5 V reverse working voltage accommodates the 3.3 V signal swing plus the SD card's hot-insertion transients, and the 12 A 8/20 us peak pulse handles field-induced surges from the user's body or charged-cable events. Tie the SRV05-4's Vcc pin to the SD-card power rail so the steering diodes bias correctly; this configuration has been validated in onsemi's reference designs.
Empfohlen
LVDS Display Panel Interface
The SRV05-4 protects LVDS clock/data pairs in display panels and embedded LCD modules where channel-to-channel capacitance matching is critical to avoid skew-induced color errors. With 3 pF typical capacitance and sub-pF variation between channels, the SRV05-4 maintains the tight LVDS intra-pair skew budget (typically <50 ps) that LVDS serializers and deserializers require. Its wide -40C to +85C operating range covers automotive and industrial display environments, and the 5 V reverse standoff aligns with common 3.3 V LVDS driver supplies for clean DC biasing.
Empfohlen
SIM Card / Smart Card Reader
The SRV05-4 protects SIM card I/O lines (I/O, CLK, RST, VPP) from ESD events that occur when the user inserts or removes the card in environments with low humidity or charged surfaces. Its sub-3 pF capacitance preserves the SIM clock rise time (typically 1-5 MHz) without distorting the contact protocol, while the IEC 61000-4-2 rating ensures the card socket survives field-coupled ESD during card-swapping operations. Place the SRV05-4 directly behind the card connector with GND tied to the chassis pour; this placement has been validated in onsemi's reference designs.
Empfohlen
10/100 Ethernet PHY Protection
The SRV05-4 can be deployed on 10/100 Ethernet MII/RMII signal lines or low-speed GPIO interfaces, where its 4-channel steering-diode topology protects two differential pairs plus two status/strap lines from cable-discharge ESD. The 3 pF capacitance is acceptable for 100BASE-TX (125 MHz) but not for 1000BASE-T, so designers running Gigabit should pair the SRV05-4 with an isolation transformer and consider a sub-0.5 pF TVS array like TPD4E1U06 on the PHY side. The 12 A 8/20 us peak pulse rating handles cable-discharge events typical of industrial Ethernet installations.
Empfohlen
Industrial Control / Fieldbus Protection
The SRV05-4 protects RS-485, RS-232, CAN, and LIN transceiver lines in industrial automation equipment where long cable runs pick up high-energy transients from motors, relays, and switching power supplies. Its 12 A 8/20 us peak pulse current handles the EFT bursts (IEC 61000-4-4 40 A, 5/50 ns) common in factory-floor environments, and its -40C to +85C operating range covers unheated enclosures. Place one SRV05-4 on each connector side of the transceiver and tie GND to chassis earth via a wide, short trace; this layout minimizes the ground-loop inductance that limits surge dissipation.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für SRV05-4 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | SRV05-4.TCT | SRV05-4L-TP | SRV05-4-P-T7 | SRV05-4HTG-D | TPD4E1U06 |
|---|---|---|---|---|---|---|
| Brand | onsemi | Semtech | MCC | ProTek Devices | Littelfuse | Texas Instruments |
| Package | SOT-23-6 | SOT-23-6 | SOT-23-6L | SOT-23-6 | SOT-23-6 | SOT-23-6 |
| Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Reverse Standoff Voltage (Vrwm) | 5 V | 5 V | 5 V | 5 V | 5 V | 5.5 V |
Wichtigste Unterscheidungsmerkmale
- Highest 8/20 us surge rating in its class (vs. TPD4E1U06 (Texas Instruments))
- Industry-standard 4-channel topology with multi-source availability (vs. Proprietary single-source alternatives)
- Balanced capacitance and surge trade-off (vs. SRV05-4HTG-D (Littelfuse))
Designhinweise
Place the SRV05-4 within 5 mm of the external connector and tie pin 2 (GND) to the chassis/earth ground via a short, wide trace or multiple vias. The inductance of the GND return path is the single biggest determinant of effective ESD dissipation - a long GND trace can allow several volts of inductive kick that defeats the device's low clamping voltage rating.
Do not exceed 5 V on the Vcc pin (pin 5) under DC conditions - the device enters avalanche at its breakdown voltage (~6 V) and the resulting leakage will exceed the microamp range expected on a quiescent bias rail. If your system Vbus exceeds 5 V, select a higher-Vrwm variant such as SRV05-6 or use a Zener in series. Also, never leave Vcc floating; the steering diodes require the 5 V bias to function symmetrically.
Route the four I/O traces as 90-ohm differential pairs (USB) or as matched-length singles (LVDS), keeping the SRV05-4 placed symmetrically with respect to the connector. Avoid running protected traces under the SRV05-4 or under any other TVS array; the magnetic field from a nearby avalanche event can couple into adjacent traces. Keep the SRV05-4 ground stitch via(s) within one via-diameter of the GND pad to minimize ground-loop inductance.
For USB 3.x SuperSpeed (5 Gbps) and USB-C SS/RX lines, the SRV05-4's 3 pF capacitance is too high and will close the eye diagram. Use a sub-0.5 pF array such as TPD4E1U06 or SRV05-4HTG-D instead. The SRV05-4 is fully adequate for USB 2.0 (480 Mbps), SD UHS-I (104 MHz), LVDS, HDMI 1.4 TMDS, and other interfaces below ~250 MHz.
Compliance-Informationen
RoHS and REACH compliant per onsemi product page; lead-free SOT-23-6 package. Not AEC-Q100 qualified - for AEC-Q100 automotive TVS arrays, consider the ESDA family or NXP's PESD5V0 series. Halogen-free status: confirm via manufacturer declaration letter.
