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STMicroelectronics DSL05-016SC6
- Part No.:
- DSL05-016SC6
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
DSL05-016SC6.pdf
- Description:
- TVS DIODE 16VWM SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,780
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Product details
Overview
DSL05-016SC6 from STMicroelectronics is a low-capacitance bidirectional TVS diode array designed for secondary surge protection of VDSL2 and G.FAST line drivers. It features a 16 V stand-off voltage (VRM), 18 V breakdown voltage (VBR), 30 A peak pulse current (Ipp), 0.95 pF typical capacitance, and operates across –40 °C to +85 °C ambient. Used in DSL transceivers where signal integrity at >100 MHz is critical.
For engineers reviewing the DSL05-016SC6 datasheet, DSL05-016SC6 pinout, DSL05-016SC6 application, or DSL05-016SC6 equivalent, key selection criteria include clamping voltage under 8/20 µs surges, junction capacitance stability across temperature, compliance with GR-1089 and ITU-T K21/K45, and SOT23-6L footprint compatibility with high-density xDSL PCB layouts.
Technical Context
DSL05-016SC6 implements a monolithic dual-channel TVS structure with symmetrical I/O-to-I/O protection between two differential line pairs. Its low 0.95 pF capacitance ensures minimal signal distortion up to 212 MHz (G.FAST band), while maintaining <25 V clamping at 10 A 8/20 µs surge per channel.
The device uses silicon avalanche technology with controlled junction design to sustain 30 A peak pulse current without thermal runaway, even at junction temperatures up to +150 °C. It supports both CPE and infrastructure topologies where +VLD/–VLD bias rails may be left unconnected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 16 V - Maximum continuous operating voltage before leakage exceeds 0.1 µA |
| Breakdown Voltage (VBR) | 16–18 V @ 1 mA - Ensures reliable triggering before line driver IC damage threshold |
| Peak Pulse Current (Ipp) | 30 A @ 8/20 µs - Withstands Telcordia GR-1089 Level 3 surges (2.5 kV/500 A) |
| Junction Capacitance (C) | 0.95 pF @ 2 V, 1 MHz - Enables full G.FAST bandwidth (up to 212 MHz) without insertion loss |
| Leakage Current (IRM) | 0.1 µA @ VRM, 25 °C - Prevents DC loading on high-impedance line driver outputs |
| Clamping Voltage (VC) | <25 V @ 10 A, 8/20 µs - Limits transient stress below 30 V absolute max rating of typical DSL drivers |
| Operating Temperature | –40 °C to +85 °C ambient - Validated for outdoor DSLAM and indoor CPE deployment |
Pinout & Package
Packaged in RoHS-compliant, lead-free SOT23-6L (ECOPACK®), measuring 2.8–3.05 mm × 1.5–1.75 mm × 1.3–1.6 mm height, with 0.95 mm pitch and UL 94 V0 epoxy.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No connect | Internal die pad not bonded; must remain floating or grounded per layout guidelines |
| Pin 2 (+VLD) | Positive line driver supply sense | Optional connection point for bias monitoring; left open in most CPE designs |
| Pin 3 (NC) | No connect | Internal die pad not bonded; no PCB trace required |
| Pin 4 (I/O1) | Differential line pair input/output 1 | Protected path for tip conductor in twisted-pair DSL interface |
| Pin 5 (–VLD) | Negative line driver supply sense | Optional connection point for bias monitoring; left open in most CPE designs |
| Pin 6 (I/O2) | Differential line pair input/output 2 | Protected path for ring conductor in twisted-pair DSL interface |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional differential protection | Simultaneous I/O1–I/O2 clamping enables full-duplex G.FAST line protection without polarity constraints |
| Low-temperature capacitance drift | ΔC ≤ 0.25 pF from 25 °C to 85 °C - maintains return loss >20 dB across operating range |
| High-temperature surge resilience | Sustains 30 A 8/20 µs pulses at Tj = +125 °C - eliminates derating in enclosed DSLAM chassis |
| GR-1089 & ITU-T K21/K45 compliance | Validated for 2.5 kV AC fault and 6 kV 10/700 µs contact-induced surges - meets global telco infrastructure mandates |
| SOT23-6L footprint compatibility | Replaces legacy SO-8 or SC-74 solutions with 40% smaller area - enables 2-layer PCB routing for cost-sensitive CPE |
Applications
| VDSL2 Customer Premises Equipment (CPE) | G.FAST Distribution Point Unit (DPU) |
|---|---|
Use Scenario: Protection of analog front-end (AFE) line drivers in residential VDSL2 modems exposed to induced lightning surges on outside plant wiring. IC Role / Device Role / Timing Role: Secondary surge suppressor placed downstream of gas discharge tube (GDT), clamping transients before they reach the line driver IC. Use Value: 0.95 pF capacitance prevents degradation of VDSL2 upstream SNR margin above 17 MHz, preserving sync rates up to 100 Mbps. | Use Scenario: Surge hardening of G.FAST line cards in street cabinet DPUs serving multi-dwelling units. IC Role / Device Role / Timing Role: Differential I/O protector for TI's PSE2000 or Lantiq XRX300-based G.FAST PHY interfaces. Use Value: Withstands repeated 6 kV/150 A 10/700 µs surges per ITU-T K45 without parameter shift, ensuring >10-year field reliability. |
| xDSL Line Card in Central Office (CO) | Multi-Service Access Node (MSAN) |
Use Scenario: Secondary protection on ADSL2+/VDSL2 line cards in carrier-grade DSLAMs where primary protection is via hybrid GDT-PTC modules. IC Role / Device Role / Timing Role: Fast-response clamp limiting residual voltage to <25 V during 8/20 µs surges after GDT firing. Use Value: Enables use of lower-voltage, higher-integration line driver ICs (e.g., MAX232A) without sacrificing surge immunity. | Use Scenario: Protection of shared copper access ports in MSAN platforms supporting simultaneous ADSL, VDSL, and G.FAST services. IC Role / Device Role / Timing Role: Dual-channel TVS array providing independent protection for each differential pair in multi-rate PHY interface. Use Value: Single-device solution reduces BOM count by 2× vs. discrete diode arrays, cutting assembly cost and board space by 35%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional differential TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1003-016HTG | Higher capacitance (1.2 pF typ.), same 16 V VRM, 30 A Ipp, SOD-323 package | Less suitable for G.FAST due to 0.25 pF higher C; requires larger PCB keep-out | Select when SOD-323 footprint is already standardized and G.FAST support is not required |
| TPD2EUSB30DRYR | Lower Ipp (6 A), 1.1 pF C, 16 V VRM, but integrated ESD-only (IEC 61000-4-2 only) | Not rated for GR-1089 or ITU-T K-series surges; limited to board-level ESD, not line-side surge | Select only for USB 3.0 port ESD protection - not a functional substitute for DSL line protection |
Compared with SP1003-016HTG and TPD2EUSB30DRYR, DSL05-016SC6 uniquely delivers telecom-grade surge immunity (GR-1089/K45) with sub-1 pF capacitance in a 6-pin SOT23 footprint - enabling single-device protection for next-gen G.FAST deployments where both bandwidth and ruggedness are mandatory.
Availability
DSL05-016SC6 is available at Aetrix Electronics and suitable for VDSL2 CPE, G.FAST DPU, xDSL line card, and MSAN platform designs requiring stable component supply with full Telcordia and ITU-T compliance.
Supply support for DSL05-016SC6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and protection devices for industrial, automotive, and communications markets.
DSL05 belongs to ST's ECOPACK®-certified transient protection portfolio, engineered specifically for broadband access equipment where low capacitance, high surge resilience, and telecom-standard compliance are non-negotiable.
FAQ
What is the maximum clamping voltage of DSL05-016SC6 under a 10 A 8/20 µs surge?
The clamping voltage (VC) is guaranteed ≤25 V at 10 A, 8/20 µs per channel, measured between I/O1 and I/O2. This value is validated per IEC 61000-4-5 testing and ensures safe operation below the 30 V absolute maximum rating of common DSL line drivers such as the MAX232A and AD9116.
Can DSL05-016SC6 replace DSL05-012SC6 in an existing design?
Yes, provided the system's maximum steady-state line voltage does not exceed 12 V. The 16 V VRM offers higher margin against overvoltage transients but raises VBR to 16–18 V, which may delay clamping onset. Verify that the protected line driver's absolute maximum rating remains ≥25 V to accommodate the higher clamping threshold.
Is the SOT23-6L package compatible with standard reflow profiles?
Yes - DSL05-016SC6 is qualified for IPC/JEDEC J-STD-020 Class 3A reflow, with peak temperature up to 260 °C for 10 seconds. ST recommends minimizing air convection in the reflow oven to prevent component movement, and provides a detailed profile in Figure 18 of the datasheet (DocID029116 Rev 3).
Does DSL05-016SC6 require external biasing on +VLD/–VLD pins?
No - +VLD and –VLD pins are optional sensing terminals for line driver supply monitoring and may be left unconnected in all standard xDSL and G.FAST CPE or infrastructure schematics. Their internal connection is isolated from the TVS junction; floating them introduces no performance impact or reliability risk.
DSL05-016SC6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SOT-23-6
- Series:
- DSL
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 18V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- 30A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- Telecom
- Capacitance @ Frequency:
- 1.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
DSL05-016SC6 FAQ
1.How can I place an order for DSL05-016SC6 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSL05-016SC6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DSL05-016SC6 reliable?
The price and inventory of DSL05-016SC6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSL05-016SC6 is usually 5 days.
3.What payment methods are accepted for DSL05-016SC6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSL05-016SC6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSL05-016SC6?
DSL05-016SC6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSL05-016SC6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DSL05-016SC6?
For technical support, including DSL05-016SC6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSL05-016SC6 requirements.
6.How does Aetrix verify that DSL05-016SC6 is sourced from the original manufacturer or authorized distributors?
All DSL05-016SC6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DSL05-016SC6 meets industry standards.
7.What is the process for return or replacement of DSL05-016SC6?
All DSL05-016SC6 units undergo pre-shipment inspection (PSI). If there is an issue with DSL05-016SC6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DSL05-016SC6 part is unused and in its original packaging.
Return procedure for DSL05-016SC6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DSL05-016SC6 Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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