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STMicroelectronics DSL04-024SC6
- Part No.:
- DSL04-024SC6
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
DSL04-024SC6.pdf
- Description:
- TVS DIODE 24VWM SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,886
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Product details
Overview
DSL04-024SC6 from STMicroelectronics is a low-capacitance bidirectional TVS diode array designed to protect VDSL2 line drivers against IEC 61000-4-2 (±15 kV air / ±8 kV contact) and IEC 61000-4-5 (±1 kV, 42 Ω) surges in CPE and DSLAM equipment. It features a 24 V standoff voltage (VRM), 27 V breakdown (VBR), 52 V clamping at 15 A (8/20 µs), 1 pF typical capacitance, and 0.2 µA leakage at 25 °C.
For engineers reviewing the DSL04-024SC6 datasheet, DSL04-024SC6 pinout, DSL04-024SC6 application, or DSL04-024SC6 equivalent, this device is selected for high-speed xDSL line protection where sub-2 pF capacitance, precise 24 V operating margin, and robust multi-standard surge immunity are required in SOT23-6L space-constrained layouts.
Technical Context
This TVS array implements a symmetrical dual-channel architecture with independent I/O1–I/O2 paths and configurable middle terminals (+VLD/–VLD) for flexible grounding or biasing in differential line driver protection. Its low 1 pF junction capacitance ensures minimal signal distortion up to VDSL2 frequencies (30 MHz).
The device operates across –40 °C to +125 °C junction temperature and withstands 30 kV peak pulse voltage per IEC 61000-4-5, enabling reliable operation even when paired with oscillating or downgraded gas discharge tubes in hybrid protection schemes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 24 V - Maximum continuous working voltage before conduction begins; sets safe operating margin for 24 V nominal line drivers. |
| Breakdown Voltage (VBR) | 27 V min at 1 mA - Confirmed turn-on threshold ensuring fast response before downstream IC damage. |
| Clamping Voltage (VCL) | 52 V at 15 A (8/20 µs) - Peak voltage seen by protected circuit during worst-case surge; limits stress on line driver output stage. |
| Junction Capacitance (C) | 1 pF typ at 2 V - Enables <1% signal attenuation at 30 MHz, critical for VDSL2 upstream/downstream integrity. |
| Leakage Current (IRM) | 0.2 µA max at 25 °C - Minimizes DC loading on high-impedance line driver feedback paths. |
| Surge Standards | IEC 61000-4-2 Level 4 (±8 kV contact), IEC 61000-4-5 Level 2 (±1 kV) - Validated immunity for global telecom deployment. |
Pinout & Package
DSL04-024SC6 is housed in a RoHS-compliant, lead-free SOT23-6L package (ECOPACK® grade), with dimensions per JEDEC MO-178AA: 2.8–3.05 mm length, 1.5–1.75 mm width, 1.1–1.45 mm height, and 0.95 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O1 | Differential input/output channel 1 terminal | Connects to one side of VDSL2 line transformer secondary or line driver output; forms primary protection path. |
| +VLD | Positive voltage reference node | Optional connection point for positive bias or ground reference; enables asymmetric clamping configuration. |
| I/O2 | Differential input/output channel 2 terminal | Connects to opposite side of transformer secondary; completes balanced protection pair with I/O1. |
| –VLD | Negative voltage reference node | Optional connection point for negative bias or ground reference; used with +VLD to configure common-mode suppression. |
| GND | Package substrate / thermal pad | Internally tied to die substrate; must be soldered to PCB ground plane for thermal dissipation and ESD return path. |
| NC | No connect | Unused internal bond pad; left unconnected per design; no external routing required. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional symmetric clamping | Enables identical surge protection on both polarities without polarity-sensitive layout constraints. |
| 1 pF typical junction capacitance | Maintains >99% signal fidelity at VDSL2 Nyquist frequency (17.664 MHz), avoiding data corruption or echo cancellation failure. |
| Configurable +VLD/–VLD terminals | Supports three grounding modes: floating, single-ended ground, or differential ground-adapting to legacy vs. new line card designs. |
| Survives degraded gas tube conditions | Remains functional even when upstream gas discharge tube exhibits voltage oscillation or reduced hold-off, improving system-level robustness. |
Applications
| VDSL2 Customer Premises Equipment (CPE) | DSL Access Multiplexer (DSLAM) |
|---|---|
Use Scenario: Protecting line driver outputs in residential VDSL2 modems/routers exposed to lightning-induced surges on copper pairs. IC Role / Device Role / Timing Role: Primary transient voltage suppressor placed between line driver output and transformer secondary, clamping ESD and surge energy before it reaches the driver IC. Use Value: Prevents permanent damage to 24 V-rated line drivers while preserving signal integrity up to 30 MHz via 1 pF capacitance. | Use Scenario: Safeguarding high-density line card outputs in central office DSLAMs handling multiple subscriber lines under repeated surge exposure. IC Role / Device Role / Timing Role: Front-end surge protector on each line port, absorbing IEC 61000-4-5 ±1 kV transients before they propagate into shared power rails or control logic. Use Value: Enables hot-swap maintenance without system reset by limiting fault current to non-disruptive levels during surge events. |
| ADSL2+ to VDSL2 Migration Platforms | Multi-Standard xDSL Line Cards |
Use Scenario: Retrofitting legacy ADSL2+ hardware to support higher-speed VDSL2 without redesigning protection networks. IC Role / Device Role / Timing Role: Drop-in replacement for higher-capacitance TVS arrays, maintaining same footprint while reducing insertion loss at elevated frequencies. Use Value: Eliminates need for board re-spin by delivering 1 pF capacitance compatible with both ADSL2+ (2.2 MHz) and VDSL2 (30 MHz) bandwidths. | Use Scenario: Single-line-card support for G.fast, VDSL2, and SHDSL standards requiring scalable surge protection across varying voltage rails (12–24 V). IC Role / Device Role / Timing Role: Configurable protection element whose +VLD/–VLD pins allow adaptation to different line driver supply topologies (single-ended, split-rail, or floating). Use Value: Reduces BOM count by supporting multiple xDSL variants with one device, lowering inventory and qualification overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS-based xDSL line protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech RClamp0524P.TCT | Unidirectional, 5 V VRM, 1.5 pF capacitance, lower clamping (18 V @ 5 A) | Requires external biasing for bidirectional use; suited for low-voltage digital interfaces, not 24 V line drivers | Select only if protecting 3.3/5 V PHYs-not suitable for direct DSL line driver placement. |
| ON Semiconductor NUP4202MR6T1G | Bidirectional, 12 V VRM, 0.8 pF capacitance, 25 V clamping @ 5 A | Limited to ≤12 V systems; insufficient standoff for 24 V VDSL2 line drivers | Valid for ADSL2+ or SHDSL (12 V rails); cannot replace DSL04-024SC6 without derating or redesign. |
Compared with RClamp0524P.TCT and NUP4202MR6T1G, DSL04-024SC6 uniquely delivers 24 V standoff, bidirectional symmetry, and 52 V clamping at 15 A-all in a 1 pF SOT23-6L package-making it the only qualified solution for 24 V VDSL2 line driver protection without external components.
Availability
DSL04-024SC6 is available at Aetrix Electronics and suitable for VDSL2 CPE, DSLAM line cards, xDSL migration platforms, and multi-standard telecom equipment requiring stable component supply across extended product lifecycles.
Supply support for DSL04-024SC6 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, power, MCU, and sensor solutions for industrial, automotive, and communications markets.
DSL04 belongs to ST's ECOPACK®-certified transient protection portfolio, engineered specifically for high-speed wired communication interfaces-including xDSL, Ethernet, and USB-where ultra-low capacitance and multi-standard surge compliance are mandatory.
FAQ
What is the maximum peak pulse current DSL04-024SC6 can handle?
DSL04-024SC6 is rated for 15 A peak pulse current under the 8/20 µs waveform per IEC 61000-4-5. This value is confirmed in Table 2 of DS8922 Rev 3 and validated through ST's qualification testing. The device maintains clamping voltage ≤52 V at this current, ensuring downstream line drivers remain within safe operating area during surge events.
Can +VLD and –VLD pins be left unconnected?
Yes, +VLD and –VLD are optional configuration terminals and may be left unconnected without affecting basic bidirectional protection functionality. Their use is only required when implementing custom common-mode suppression, split-rail grounding, or biasing schemes. The device operates fully as a two-channel TVS array with I/O1 and I/O2 alone.
Is DSL04-024SC6 compatible with lead-free reflow processes?
Yes, DSL04-024SC6 uses a lead-free SOT23-6L package qualified for standard Pb-free reflow profiles. ST specifies a peak temperature of 240–245 °C for 2–3 seconds, with ramp rates ≤3 °C/s pre-peak and cooling ≥2 °C/s post-peak, aligned with IPC/JEDEC J-STD-020. The epoxy meets UL 94 V0 flammability rating.
How does DSL04-024SC6 differ from DSL04-020SC6?
DSL04-024SC6 has a 24 V standoff voltage (VRM) and 27 V minimum breakdown (VBR), whereas DSL04-020SC6 is rated for 20 V VRM and 23 V VBR. Both share identical 1 pF capacitance, 0.2 µA leakage, and SOT23-6L packaging. The higher voltage rating makes DSL04-024SC6 suitable for 24 V line driver rails, while DSL04-020SC6 targets 20 V or lower systems.
DSL04-024SC6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- 15A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
DSL04-024SC6 FAQ
1.How can I place an order for DSL04-024SC6 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSL04-024SC6 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 DSL04-024SC6 reliable?
The price and inventory of DSL04-024SC6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSL04-024SC6 is usually 5 days.
3.What payment methods are accepted for DSL04-024SC6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSL04-024SC6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSL04-024SC6?
DSL04-024SC6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSL04-024SC6 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 DSL04-024SC6?
For technical support, including DSL04-024SC6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSL04-024SC6 requirements.
6.How does Aetrix verify that DSL04-024SC6 is sourced from the original manufacturer or authorized distributors?
All DSL04-024SC6 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 DSL04-024SC6 meets industry standards.
7.What is the process for return or replacement of DSL04-024SC6?
All DSL04-024SC6 units undergo pre-shipment inspection (PSI). If there is an issue with DSL04-024SC6, 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 DSL04-024SC6 part is unused and in its original packaging.
Return procedure for DSL04-024SC6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DSL04-024SC6 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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