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STMicroelectronics DSL05-008SC6
- Part No.:
- DSL05-008SC6
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
DSL05-008SC6.pdf
- Description:
- TVS DIODE 8VWM SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:6,679
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Product details
Overview
DSL05-008SC6 from STMicroelectronics is an 8 V standoff voltage bidirectional TVS diode array designed for secondary surge protection of VDSL2 and G.FAST line drivers. It delivers 30 A (8/20 µs) peak pulse current, 0.95 pF typical capacitance, 50 nA leakage at 25 °C, and operates across –40 to +85 °C ambient, deployed in CPE and infrastructure DSL interfaces.
For engineers reviewing the DSL05-008SC6 datasheet, DSL05-008SC6 pinout, DSL05-008SC6 application, or DSL05-008SC6 equivalent, key selection criteria include low-capacitance line protection, GR-1089/ITU-T K20–K45 compliance, SOT23-6L footprint compatibility, and thermal stability up to 150 °C junction temperature.
Technical Context
This device implements a monolithic dual-channel TVS structure with symmetrical clamping for differential DSL lines. It features bidirectional breakdown at ±8 V (min), clamps transients to ≤15 V at 10 A (8/20 µs), and maintains stable capacitance (<1.2 pF) from 1 V to 8 V reverse bias.
Designed for placement between line driver output and transformer, it operates without external bias and sustains surge immunity under oscillating gas tube conditions. Its 0.95 pF typ capacitance ensures minimal signal distortion up to 212 MHz (G.FAST band).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 8 V - Maximum continuous operating voltage before conduction begins |
| Peak Pulse Current (Ipp) | 30 A (8/20 µs) - Withstands telecom-grade surges per GR-1089 and ITU-T K21 |
| Junction Capacitance (C) | 0.95 pF typ @ 2 V - Enables clean signal integrity through ADSL2+ to G.FAST (up to 212 MHz) |
| Leakage Current (IRM) | 0.1 nA max @ VRM - Minimizes DC loading on line driver output stage |
| Clamping Voltage (Vc) | ≤15 V @ 10 A - Limits transient overvoltage seen by downstream driver IC |
| Operating Temperature | –40 °C to +85 °C ambient - Validated for outdoor CPE and central office environments |
Pinout & Package
DSL05-008SC6 is housed in a RoHS-compliant, lead-free SOT23-6L package (ECOPACK® grade), measuring 3.05 × 1.75 × 1.45 mm with gull-wing leads and tape-and-reel delivery (3000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No connect | Internal die pad not bonded; left floating per design |
| Pin 2 (+VLD) | Positive line driver terminal | Anode of Channel 1 TVS; connects to +side of differential DSL pair |
| Pin 3 (NC) | No connect | Internal die pad not bonded; left floating per design |
| Pin 4 (I/O1) | Differential input/output 1 | Cathode of Channel 1 / Anode of Channel 2; common node for bidirectional clamping |
| Pin 5 (–VLD) | Negative line driver terminal | Cathode of Channel 2 TVS; connects to –side of differential DSL pair |
| Pin 6 (I/O2) | Differential input/output 2 | Cathode of Channel 2 / Anode of Channel 1; second common clamping node |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | ±8 V (min) breakdown ensures matched protection for both polarities of DSL differential signals |
| Low temperature coefficient of capacitance | Capacitance shift <0.25 pF from –40 °C to +85 °C - preserves impedance matching across operating range |
| High-temperature power derating | Maintains 30 A surge capability up to 125 °C junction - supports compact, unventilated CPE enclosures |
| GR-1089 & ITU-T K20/K21/K45 compliance | Validated for 2.5 kV/500 A (2/10 µs) and 6 kV/150 A (10/700 µs) - meets global telco infrastructure requirements |
Applications
| VDSL2 Customer Premises Equipment (CPE) | G.FAST Distribution Point Unit (DPU) |
|---|---|
Use Scenario: Protection of line driver outputs in residential VDSL2 modems and gateways exposed to induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Secondary surge clamp placed between driver IC and line transformer, absorbing energy before it reaches sensitive analog front-end. Use Value: 0.95 pF capacitance prevents high-frequency attenuation, enabling full 30 MHz VDSL2 bandwidth without equalization penalty. | Use Scenario: Surge hardening of G.FAST line cards in street cabinet DPUs serving fiber-to-the-distribution-point networks. IC Role / Device Role / Timing Role: Differential transient suppressor on twisted-pair output, coordinated with upstream gas discharge tube (GDT) primary protection. Use Value: Survives repeated 6 kV/10/700 µs surges while maintaining <1.2 pF capacitance - critical for 106 MHz G.FAST symbol rate fidelity. |
| ADSL2+ Remote Terminal Units | xDSL Central Office Line Cards |
Use Scenario: Cost-sensitive secondary protection in legacy ADSL2+ RTUs deployed in multi-dwelling units with shared copper drops. IC Role / Device Role / Timing Role: Low-leakage (0.1 nA max) TVS array minimizing standby power impact on line driver bias networks. Use Value: 50 nA leakage at 25 °C reduces quiescent current burden on driver's current sources, improving thermal margin in dense card layouts. | Use Scenario: High-reliability surge suppression on carrier-grade xDSL line cards handling >100 subscriber lines per shelf. IC Role / Device Role / Timing Role: Dual-channel monolithic protector replacing discrete diode pairs, reducing PCB area and assembly cost. Use Value: SOT23-6L footprint cuts board space by 65% vs. SO-8 alternatives - enables higher port density per line card. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSL line protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech RCLAMP0524P.TCT | 5 V standoff, 12 A Ipp (8/20 µs), 0.3 pF typ capacitance | Targeted at lower-voltage data lines (USB, Ethernet); insufficient clamping headroom for VDSL2/G.FAST | Select only for sub-6 V systems where lower capacitance outweighs reduced surge margin |
| ON Semiconductor NUP4202MR6T1G | 12 V standoff, 20 A Ipp, 1.5 pF typ capacitance | Higher capacitance degrades G.FAST signal integrity above 50 MHz; wider tolerance on VBR | Acceptable for ADSL2+ but not recommended for >30 MHz deployments due to bandwidth limitation |
Compared with DSL05-008SC6, RCLAMP0524P.TCT offers lower capacitance but inadequate voltage headroom for VDSL2 line drivers, while NUP4202MR6T1G provides higher standoff but introduces measurable insertion loss above 50 MHz - making DSL05-008SC6 the optimal balance of surge margin, bandwidth, and thermal robustness for G.FAST-ready designs.
Availability
DSL05-008SC6 is available at Aetrix Electronics and suitable for VDSL2 customer premises equipment, G.FAST distribution point units, and xDSL central office line cards requiring stable component supply and long-term lifecycle support.
Supply support for DSL05-008SC6 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 analog, MCU, power, and protection devices for industrial, automotive, and communications markets.
DSL05 belongs to ST's ECOPACK®-certified transient protection portfolio, engineered specifically for broadband access infrastructure with emphasis on low capacitance, telecom-standard compliance, and high-temperature reliability.
FAQ
What is the maximum junction temperature rating for DSL05-008SC6?
The absolute maximum junction temperature is +150 °C, with continuous operation validated from –40 °C to +85 °C ambient. Derating curves in Figure 3 confirm 30 A surge capability remains usable up to 125 °C junction temperature, supporting thermally constrained CPE enclosures without forced cooling.
Can DSL05-008SC6 be used in series with a gas discharge tube (GDT)?
Yes - DSL05-008SC6 is explicitly qualified for coordinated secondary protection downstream of GDTs. Its fast response (sub-nanosecond) clamps residual overshoot after GDT ionization, and its thermal robustness allows operation even during GDT oscillation or slow decay events, as confirmed in Section 1 description.
Is the SOT23-6L package compatible with standard reflow profiles?
Yes - the device complies with IPC/JEDEC J-STD-020 moisture sensitivity level 1 and supports peak reflow temperatures up to 260 °C for 10 seconds. Figure 18 in the datasheet provides ST's recommended Pb-free reflow profile, including preheat, soak, ramp-up, and cooling zones aligned to industry standards.
Does DSL05-008SC6 require external bias or control signals?
No - DSL05-008SC6 is a passive, bidirectional TVS diode array with no pins requiring voltage bias, enable signals, or configuration. It operates solely based on voltage threshold conduction and requires no external components beyond standard PCB layout practices for high-frequency surge paths.
DSL05-008SC6 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):
- 8V (Max)
- Voltage - Breakdown (Min):
- 9.5V
- 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
DSL05-008SC6 FAQ
1.How can I place an order for DSL05-008SC6 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSL05-008SC6 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 DSL05-008SC6 reliable?
The price and inventory of DSL05-008SC6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSL05-008SC6 is usually 5 days.
3.What payment methods are accepted for DSL05-008SC6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSL05-008SC6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSL05-008SC6?
DSL05-008SC6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSL05-008SC6 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 DSL05-008SC6?
For technical support, including DSL05-008SC6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSL05-008SC6 requirements.
6.How does Aetrix verify that DSL05-008SC6 is sourced from the original manufacturer or authorized distributors?
All DSL05-008SC6 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 DSL05-008SC6 meets industry standards.
7.What is the process for return or replacement of DSL05-008SC6?
All DSL05-008SC6 units undergo pre-shipment inspection (PSI). If there is an issue with DSL05-008SC6, 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 DSL05-008SC6 part is unused and in its original packaging.
Return procedure for DSL05-008SC6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DSL05-008SC6 Tags
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