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STMicroelectronics DSL03-010SC6
- Part No.:
- DSL03-010SC6
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
DSL03-010SC6.pdf
- Description:
- IC PROTECTION DSL SOT23-6
- Quantity:
- Payment:
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Inventory:8,917
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Product details
Overview
DSL03-010SC6 from STMicroelectronics is a low-capacitance bidirectional TVS diode array designed for I/O protection of DSL line drivers in ADSL/VDSL2 systems. It provides 10 V stand-off voltage, 29 V clamping voltage at 16 A (8/20 µs), 0.5 pF typical capacitance, and complies with ITU-T K20/21, GR-1089, and IEC 61000-4-5 Level 2.
For engineers reviewing the DSL03-010SC6 datasheet, DSL03-010SC6 pinout, DSL03-010SC6 application, or DSL03-010SC6 equivalent, key selection criteria include sub-1 pF capacitance for high-speed signal integrity, 16 A surge current capability, bidirectional I/O-to-I/O protection topology, and SOT23-6L package compatibility with space-constrained DSL modem front-ends.
Technical Context
The DSL03-010SC6 implements a monolithic dual-channel bidirectional TVS structure with common-cathode configuration across two independent I/O pairs. Its design enables simultaneous protection of differential DSL line pairs without signal path asymmetry or added series impedance.
It maintains stable clamping performance up to 125 °C junction temperature and retains full 16 A surge rating under thermal stress - critical for sustained operation in unventilated DSLAM or CPE enclosures where ambient temperatures exceed 70 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 10 V - maximum continuous operating voltage before breakdown; sets upper limit for normal-mode DSL signal swing tolerance |
| Clamping Voltage (VCL) | 29 V at 16 A (8/20 µs) - peak voltage seen by protected line driver during worst-case surge; ensures safe margin below IC absolute max ratings |
| Junction Capacitance (C) | 0.5 pF typ. - preserves signal integrity up to VDSL2 35 MHz bandwidth; avoids insertion loss or group delay distortion |
| Leakage Current (IRM) | 0.2 µA at 25 °C - negligible DC loading on line driver bias networks; prevents offset drift or gain error in analog front-end stages |
| Surge Rating (IEC 61000-4-5) | ±1 kV, 42 Ω - meets Level 2 immunity requirement for telecom infrastructure; validated for repeated surges without parameter shift |
| Package | SOT23-6L - 6-pin surface-mount package with 0.95 mm pitch; supports automated placement and reflow in high-volume DSL modem assembly |
Pinout & Package
SOT23-6L package: 6-pin, lead-free, RoHS-compliant, UL94 V0 epoxy body, 17.3 mg unit weight, tape-and-reel packaging (3000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O Channel A Anode | Input/output terminal for first protected differential pair; connects directly to DSL line driver output |
| 2 | I/O Channel A Cathode | Common cathode node for Channel A; ties to system ground reference plane via low-inductance path |
| 3 | GND | Dedicated ground pin - isolated from cathode pins to minimize ground bounce coupling during surge events |
| 4 | I/O Channel B Cathode | Common cathode node for Channel B; electrically separate from Pin 2 to prevent cross-talk between protected lines |
| 5 | I/O Channel B Anode | Input/output terminal for second protected differential pair; matches Pin 1 layout for symmetric PCB routing |
| 6 | No Connect | Internally unconnected; must remain floating - no external tie to GND or VCC to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional I/O-to-I/O protection | Enables single-device protection of both polarities in full-duplex DSL lines without external polarity control circuitry |
| 0.5 pF typical capacitance | Minimizes high-frequency signal attenuation and phase distortion across VDSL2 frequency band (up to 35 MHz) |
| 16 A peak pulse current (8/20 µs) | Withstands multiple GR-1089-compliant surges without degradation - verified per Telcordia test sequence |
| Thermal stability to 125 °C | Maintains clamping voltage and leakage specs across full industrial temperature range; eliminates derating in sealed CPE units |
| SOT23-6L footprint | Matches standard pick-and-place tooling; allows drop-in replacement of legacy TVS arrays without PCB redesign |
Applications
| ADSL/VDSL Line Driver Protection | VDSL2 Class AB Modem Interface |
|---|---|
Use Scenario: Protecting analog front-end drivers in residential DSL modems exposed to induced surges from nearby power lines or lightning. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at line driver output pins to clamp ESD and surge energy before reaching sensitive amplifier stages. Use Value: Prevents permanent damage to line drivers while maintaining <0.5 dB insertion loss at 12 MHz - critical for achieving ANSI T1.413 compliance. | Use Scenario: Surge protection for VDSL2 Class AB modems deployed in multi-dwelling units with shared building grounding and long copper drops. IC Role / Device Role / Timing Role: I/O-to-I/O TVS array safeguarding differential TX/RX pairs against 6 kV/10/700 µs ITU-T K21 power induction transients. Use Value: Enables uninterrupted operation after 100+ surge events without parameter shift - validated per Figure 2 power derating curve. |
| VDSL2 Class H Long-Reach Deployment | DSLAM Line Card Transient Suppression |
Use Scenario: Front-end protection in VDSL2 Class H modems operating over >3 km loops with elevated noise and surge coupling risk. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to line driver outputs to preserve signal fidelity while shunting fast-rising transients. Use Value: 0.5 pF capacitance ensures <0.1° group delay variation across 17 MHz - meeting ETSI EN 300 422-1 spectral mask requirements. | Use Scenario: Protection of centralized DSLAM line cards handling 24–48 subscriber lines in telco central offices subject to AC power fault transients. IC Role / Device Role / Timing Role: Dual-channel TVS providing independent surge suppression for each twisted-pair port per line card ASIC interface. Use Value: 29 V clamping voltage guarantees line driver survival under 2.5 kV/2/10 µs GR-1089 AC fault tests - confirmed in Table 1 absolute ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional I/O transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1002-010HTG | 0.35 pF capacitance, 12 V stand-off, 24 V clamping at 12 A; SOD-323 package | Lower capacitance suits higher-frequency PON or G.fast interfaces; lower surge rating limits use to lighter-duty CPE | Select when <0.4 pF is mandatory and surge threat is limited to IEC 61000-4-2 ESD only |
| TPD4E05U06DQAR | 0.5 pF, 5.5 V stand-off, 14 V clamping at 4 A; quad-channel SOT-563 package | Designed for USB/PCIe ESD protection; insufficient surge rating for GR-1089 or ITU-T K21 compliance | Use only for board-level ESD hardening - not for telecom-grade surge immunity |
Compared with SP1002-010HTG and TPD4E05U06DQAR, DSL03-010SC6 uniquely delivers telecom-certified 16 A surge handling in a dual-channel SOT23-6L footprint, making it the only option qualified for VDSL2 line driver protection where both low capacitance and GR-1089 compliance are simultaneously required.
Availability
DSL03-010SC6 is available at Aetrix Electronics and suitable for ADSL/VDSL2 modem design, DSLAM line card manufacturing, and telecom infrastructure equipment requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for DSL03-010SC6 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, specializing in automotive, industrial, and communications ICs with strong IP in analog, power, and protection devices.
The DSL03 series belongs to ST's dedicated telecom protection portfolio, engineered specifically to meet Telcordia GR-1089 and ITU-T K-series surge immunity standards for xDSL infrastructure and customer premises equipment.
FAQ
What is the maximum operating temperature for DSL03-010SC6?
The DSL03-010SC6 has an operating junction temperature range of –40 °C to +125 °C, with full electrical specifications guaranteed across this range. Its peak pulse power capability remains stable up to Tj = 125 °C, as shown in Figure 2 of the official datasheet (DocID022325 Rev 2). This makes it suitable for sealed, fanless DSL modem enclosures where internal temperatures may exceed 85 °C.
Can DSL03-010SC6 be used for Ethernet PHY protection?
No - DSL03-010SC6 is optimized for xDSL line frequencies (up to 35 MHz) and does not meet IEEE 802.3 specifications for Ethernet surge immunity. Its 29 V clamping voltage exceeds the 12 V maximum allowed for 100BASE-TX PHY protection, and its IEC 61000-4-5 rating (±1 kV) falls short of the ±2 kV requirement for Ethernet ports. Use ST's ESDALC6V1 or similar Ethernet-qualified TVS arrays instead.
Is the NC pin (Pin 6) required to be left floating?
Yes - Pin 6 is internally unconnected and must remain floating per ST's layout guidelines. Connecting it to GND or VCC introduces parasitic capacitance that degrades high-frequency performance and may cause unexpected clamping behavior during fast transients. The SOT23-6L footprint accommodates this requirement with standard land pattern clearance.
How does DSL03-010SC6 differ from DSL03-022SC6 in system-level design?
DSL03-010SC6 (10 V VRM) targets low-voltage DSL drivers with tight headroom margins, while DSL03-022SC6 (22 V VRM) suits higher-voltage line drivers used in extended-reach VDSL2 deployments. Their clamping voltages differ (29 V vs. 52 V), so substituting one for the other risks either premature conduction (10 V part on 22 V line) or insufficient protection (22 V part on 10 V line), violating ITU-T K21 surge thresholds.
DSL03-010SC6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- -
- Series:
- DSL
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- -
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
DSL03-010SC6 FAQ
1.How can I place an order for DSL03-010SC6 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSL03-010SC6 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 DSL03-010SC6 reliable?
The price and inventory of DSL03-010SC6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSL03-010SC6 is usually 5 days.
3.What payment methods are accepted for DSL03-010SC6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSL03-010SC6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSL03-010SC6?
DSL03-010SC6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSL03-010SC6 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 DSL03-010SC6?
For technical support, including DSL03-010SC6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSL03-010SC6 requirements.
6.How does Aetrix verify that DSL03-010SC6 is sourced from the original manufacturer or authorized distributors?
All DSL03-010SC6 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 DSL03-010SC6 meets industry standards.
7.What is the process for return or replacement of DSL03-010SC6?
All DSL03-010SC6 units undergo pre-shipment inspection (PSI). If there is an issue with DSL03-010SC6, 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 DSL03-010SC6 part is unused and in its original packaging.
Return procedure for DSL03-010SC6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DSL03-010SC6 Tags
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DESD3V3E1BL-7B
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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