USBLC6-4SC6 - 4-Channel Low-Capacitance ESD TVS | STMicroelectronics
N.º da peça: USBLC6-4SC6 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
USBLC6-4SC6 Visão geral
An ESD protection array is a specialized discrete-semiconductor category placed between external connectors and sensitive interface circuitry. TVS diodes conduct during an electrostatic discharge or transient event and clamp the line to a controlled voltage, diverting stress away from the downstream controller. USBLC6-4SC6 is therefore an application-specific protection component rather than a signal-conditioning IC or a general-purpose power TVS diode. Its four protected conductors make it suitable for compact multipin interfaces where board area and routing simplicity are important.
The principal verified characteristics are the 17 V clamp rating, 5 A Ipp capability for the specified 8/20 microsecond pulse, four-line protection, very-low-capacitance construction, and SOT-23-6 surface-mount package. STMicroelectronics identifies USB 2.0, Ethernet links, and video lines as representative applications. These use cases benefit from placing the protection network close to a connector, where an electrostatic event can be intercepted before it propagates into the host controller or transceiver.
The low-capacitance implementation is the key signal-integrity feature. Added protection capacitance can lengthen rise and fall times, reduce eye margin, and impair high-speed signaling when placed in a long edge-coupled or impedance-controlled path. USBLC6-4SC6 addresses that trade-off with a very-low-capacitance monolithic array, while its four-line architecture reduces the component count compared with separate single-line protection devices. Exact capacitance, working voltage, leakage current, response characteristics, and temperature limits were not supplied in the retrieved data and must be confirmed in the manufacturer datasheet before release to production.
Typical placements include USB Type-A ports, service connectors, Ethernet magnetics interfaces, video inputs, and other low-voltage exposed connectors. Place the device on the connector side of the board, route protected traces away from the entry point, and keep the ground return short and low-inductance. ESD events rise rapidly, so physical proximity and return-path geometry are as important as the nominal clamp rating.
This page combines the verified manufacturer product description, distributor listings, package information, and cross-reference evidence. It also highlights the limitation that no pricing, complete pinout, complete alternative parameter matrix, or several electrical parameters were present in the supplied source data, so those fields remain explicitly unresolved rather than inferred.
Alternativas drop-in para USBLC6-4SC6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
USBLC6-4SC6Y
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ESDSRV05-4
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
SRV05-4HTG
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
USBLC6-4SC6 Especificações
| Product Type | Monolithic ESD protection array |
| Protected Lines | 4 lines |
| Clamp Voltage | 17 V |
| Peak Pulse Current | 5 A at 8/20 microseconds |
| Waveform | 8/20 microseconds |
| Capacitance Class | Very low capacitance |
| Encapsulamento | SOT-23-6, surface mount |
| Contagem de pinos | 6 pins |
| Tipo de montagem | Surface mount |
| Primary Protection Function | Electrostatic discharge protection |
Guia de Configuração de Pinos do USBLC6-4SC6 sot-23-6, surface mount
Configuração de pinos para USBLC6-4SC6 (pacote sot-23-6, surface mount). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para USBLC6-4SC6.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
USBLC6-4SC6 é adequado para 6 aplicaçãos: USB 2.0 Connector Protection, Ethernet Link Protection, Video Input Protection, Low-Voltage Service Connector Protection, High-Speed Data-Line Protection, USB and Peripheral Interface Boards.
USB 2.0 Connector Protection
USBLC6-4SC6 fits at an exposed USB 2.0 connector because STMicroelectronics identifies USB 2.0 as a target interface and the device protects four lines with very-low capacitance. Place the SOT-23-6 array between the connector pads and the protected board traces, with its shortest possible connection to the interface ground. The verified 17 V clamp and 5 A Ipp under an 8/20 microsecond waveform provide the defined transient rating, while the low-capacitance objective limits added loading. Exact USB data-rate margin still requires the manufacturer capacitance and leakage data, which were not included in the supplied snippets.
Recomendado
Ethernet Link Protection
The USBLC6-4SC6 is applicable to Ethernet links because its manufacturer product page explicitly includes Ethernet among the high-speed interfaces protected by the USBLC6-4 family. The four-line array can protect multiple conductors entering through a compact network connector while keeping the added protection capacitance low. Layout remains critical: the ESD device should sit near the connector, and its transient return should not share a long path with sensitive analog or clock traces. Verify the interface operating voltage against the unreported working-voltage specification before using the 17 V clamp rating as a substitute for that parameter.
Recomendado
Video Input Protection
USBLC6-4SC6 can be placed at an exposed video interface because STMicroelectronics identifies video lines among the intended applications. The very-low-capacitance construction is useful when protecting several high-speed video conductors without intentionally adding a large shunt load. The device should be oriented so the shortest possible path connects the connector-side transient to the protection network and then to the downstream receiver. The verified 17 V clamp and 5 A Ipp value describe the transient suppressor, but signal amplitude, channel capacitance, and return-loss budgets must be checked against the complete manufacturer datasheet before layout sign-off.
Recomendado
Low-Voltage Service Connector Protection
USBLC6-4SC6 is suitable for service or compact external connectors that expose four low-voltage conductors to user contact. The monolithic four-line arrangement reduces the number of discrete protection footprints in a constrained connector area and keeps the protection device close to the entry point. Route each exposed conductor through the appropriate protection network before it reaches sensitive logic, and connect the suppressor ground to the enclosure or chassis-related return where the system architecture requires it. The retrieved source does not specify a system working voltage, so this use requires validation of the exact line voltages and leakage requirements.
Recomendado
High-Speed Data-Line Protection
Use USBLC6-4SC6 when several high-speed data conductors must share a compact ESD protection point. Its four-line monolithic structure addresses multiple lines in one SOT-23-6 footprint, while the very-low-capacitance description helps limit edge-rate degradation. In a practical board, place the device at the connector boundary and keep protected traces short and controlled-impedance where applicable. The verified transient rating is 17 V clamp and 5 A Ipp at 8/20 microseconds; that rating should be treated as an ESD transient specification, not as a substitute for line-voltage or signal-integrity validation.
Recomendado
USB and Peripheral Interface Boards
USBLC6-4SC6 can be integrated into compact USB and peripheral-interface boards where connector access and ESD robustness are required together. The surface-mount SOT-23-6 package supports normal automated board assembly, while the four-line monolithic construction allows a single protection location near multiple connector pins. Because the source material does not provide an exact pinout or a full capacitance value, the PCB designer must follow the STMicroelectronics package drawing and verify each connection. The same 17 V and 5 A values apply to the verified device, not to an inferred alternative.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para USBLC6-4SC6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | USBLC6-4SC6Y | ESDSRV05-4 | SRV05-4HTG |
|---|---|---|---|---|
| Package | SOT-23-6 | SOT-23-6 | SOT-23-6 | SOT-23-6 |
| Brand | STMicroelectronics | STMicroelectronics | YINT | Semtech Corporation |
| Primary Protection | ESD protection | ESD protection | ESD protection candidate | Similar transient-protection function |
| Target Interfaces | USB 2.0, Ethernet links, video lines | USB 2.0, Ethernet links, video lines | USB, service-port, compact connector designs | Similar high-speed protection function |
Principais diferenciais
- Manufacturer-specific high-speed interface positioning (vs SRV05-4HTG)
- Verified transient clamp and pulse rating (vs ESDSRV05-4)
- Four-line monolithic integration (vs USBLC6-4SC6Y)
Notas de projeto
Place USBLC6-4SC6 as close as practical to the external connector, with protected traces routed through the device before reaching the controller. ESD transients are high-frequency events, so the physical path from connector pad to protection array and from the array to a low-inductance ground should be short. Avoid placing sensitive clock, analog, or high-speed routing underneath or immediately beside the unprotected connector-side traces. Confirm the package pin map against the STMicroelectronics datasheet before finalizing the footprint.
The very-low-capacitance construction is intended for high-speed interfaces, but the supplied sources do not provide the exact capacitance curve. Before release, compare the device capacitance, leakage, channel-to-channel matching, and rise-time impact with the maximum data-rate and impedance budget. Do not infer USB, Ethernet, or video signal margin from the 17 V clamp rating alone; the clamp rating describes transient protection while capacitance determines high-speed signal degradation.
Do not use USBLC6-4SC6 as a substitute for surge protection, overvoltage protection, or an unspecified continuous-voltage clamp without checking the complete manufacturer ratings. ESD performance also depends on system grounding, enclosure discharge path, connector construction, and the placement of the protection array. A correctly rated device can be ineffective if the ESD current is forced through a long trace or an unsuitable ground return. Validate the assembled board with the intended interface and test procedure.
Verify that the selected replacement has the same SOT-23-6 footprint, exact I/O-to-I/O and ground connectivity, suitable working-voltage range, comparable channel capacitance, and required ESD pulse performance. The available cross-reference results mention ESDSRV05-4 and SRV05-4HTG, but one explicitly reports inconsistent parameters and possible circuit modification. Treat those parts as engineering-review candidates until their manufacturer datasheets and pin drawings are compared directly.
Informações de conformidade
The supplied search results mention comparison pages involving RoHS and REACH, but no authoritative compliance statement for STMicroelectronics USBLC6-4SC6 was included. Compliance fields therefore remain unknown. AEC-Q100 is not applicable to this discrete ESD protection device unless a specific automotive qualification is established by the manufacturer.
