My Inquiry
My Account
STMicroelectronics DSL04-008SC6
- Part No.:
- DSL04-008SC6
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
DSL04-008SC6.pdf
- Description:
- TVS DIODE 8VWM 25VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,576
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DSL04-008SC6 from STMicroelectronics is a low-capacitance bidirectional TVS diode array designed to protect VDSL2 line drivers in CPE and DSLAM equipment against IEC 61000-4-2 (±15 kV air / ±8 kV contact) and IEC 61000-4-5 (±1 kV, 42 Ω) surges. It features a 8 V working voltage (VRM), 10 V minimum breakdown voltage (VBR), 25 A peak pulse current (8/20 µs), 1 pF typical junction capacitance, and 0.2 µA leakage at 25 °C.
For engineers reviewing the DSL04-008SC6 datasheet, DSL04-008SC6 pinout, DSL04-008SC6 application, or DSL04-008SC6 equivalent, key selection criteria include low capacitance for high-speed xDSL signal integrity, robust surge immunity for telecom infrastructure, and SOT23-6L footprint compatibility with space-constrained line card layouts.
Technical Context
This device implements a dual-channel, symmetric, bidirectional TVS structure with two independent protection paths (I/O1–+VLD–I/O2 and I/O1––VLD–I/O2), enabling flexible connection of the middle terminals (+VLD/–VLD) depending on grounding scheme and common-mode vs. differential surge requirements. Its low 1 pF capacitance ensures minimal signal distortion up to VDSL2 frequencies (30 MHz).
The junction design supports operation from –40 °C to +125 °C and withstands 30 kV peak pulse voltage per IEC 61000-4-5, while maintaining sub-1 µA leakage across temperature and meeting MIL-STD-883G Class 3 HBM (8 kV) requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRM) | 8 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line DC bias. |
| Breakdown Voltage (VBR) | 10 V min at 1 mA - Clamping initiates reliably above this threshold during transient events. |
| Clamping Voltage (VCL) | 25 V max at 15 A (8/20 µs) - Limits peak voltage seen by downstream driver during worst-case surge. |
| Junction Capacitance (C) | 1 pF typ at 2 V - Enables use in VDSL2 (up to 30 MHz) without degrading signal rise time or insertion loss. |
| Leakage Current (IRM) | 0.2 µA max at 25 °C - Ensures negligible DC loading on high-impedance line driver outputs. |
| Peak Pulse Current (Ipp) | 15 A (8/20 µs waveform) - Withstands repeated IEC 61000-4-5 level-2 surges without degradation. |
| Operating Temperature | –40 °C to +125 °C - Supports deployment in uncontrolled telco cabinet environments. |
Pinout & Package
DSL04-008SC6 is housed in a RoHS-compliant, lead-free SOT23-6L package (ECOPACK® certified), measuring 2.8–3.05 mm × 1.5–1.75 mm × 1.3–1.6 mm (L × W × H), with 0.95 mm pitch and UL 94 V0 epoxy molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O1 | Differential signal input/output terminal 1 | Connects to one side of twisted-pair line; forms primary protection path with +VLD and –VLD. |
| +VLD | Positive voltage reference node | Optional connection point for positive rail or floating reference; enables common-mode clamp configuration. |
| I/O2 | Differential signal input/output terminal 2 | Connects to second line conductor; completes bidirectional protection loop with I/O1. |
| I/O1 | Differential signal input/output terminal 1 (redundant pin) | Same electrical node as Pin 1; provided for layout symmetry and routing flexibility. |
| –VLD | Negative voltage reference node | Optional connection point for ground or negative rail; used with +VLD to configure dual-rail clamping. |
| I/O2 | Differential signal input/output terminal 2 (redundant pin) | Same electrical node as Pin 3; supports balanced PCB trace routing and thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional dual-channel architecture | Enables simultaneous protection of both line conductors without polarity constraints or external biasing. |
| 1 pF typical junction capacitance | Preserves signal integrity in VDSL2 systems (up to 30 MHz) with <0.1 dB insertion loss at 10 MHz. |
| IEC 61000-4-2 Level 4 compliance | Guarantees survival under ±15 kV air and ±8 kV contact ESD events in field-deployed CPE units. |
| SOT23-6L footprint | Provides compact, surface-mountable solution compatible with standard pick-and-place and reflow processes (JEDEC J-STD-020). |
| 0.2 µA leakage at 25 °C | Minimizes power loss and offset error in high-gain line driver front-ends operating near VRM. |
Applications
| VDSL2 Customer Premises Equipment (CPE) | DSL Access Multiplexer (DSLAM) Line Cards |
|---|---|
Use Scenario: Protecting analog front-end of VDSL2 transceivers in residential gateways and modems exposed to lightning-induced surges on outdoor copper lines. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at line interface, clamping fast-rising surges before they reach the line driver IC. Use Value: Prevents permanent damage to sensitive CMOS line drivers while maintaining <1 pF loading for full-band VDSL2 (up to 30 MHz) performance. | Use Scenario: Surge protection for multi-port DSLAM line cards handling aggregated traffic from hundreds of subscriber lines. IC Role / Device Role / Timing Role: Primary overvoltage guard on each differential pair, coordinated with gas discharge tubes for staged protection. Use Value: Survives repeated ±1 kV IEC 61000-4-5 surges and enables reliable operation even when upstream gas tube degrades or oscillates. |
| ADSL2+ Backhaul Interfaces | Industrial Ethernet-over-Copper Gateways |
Use Scenario: Securing legacy ADSL2+ interfaces in remote monitoring systems deployed in electrically noisy substations or railway cabinets. IC Role / Device Role / Timing Role: Low-capacitance ESD/surge protector between twisted-pair PHY and line driver, rated for –40 °C to +85 °C extended industrial range. Use Value: Delivers 8 kV HBM ESD robustness and maintains signal fidelity at 2.2 MHz carrier frequencies without added termination complexity. | Use Scenario: Protecting Ethernet PHYs running over legacy telephone wiring in factory automation networks. IC Role / Device Role / Timing Role: Bidirectional TVS array bridging differential data pairs, referenced to local chassis ground via –VLD/+VLD terminals. Use Value: Enables reuse of existing copper cabling infrastructure while meeting IEC 61000-4-5 level-2 surge immunity for industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1002-008KTG | Unidirectional, 8 V VRWM, 12 V VBR, 1.5 pF Cj, 12 A Ipp (8/20 µs) | Lacks bidirectional capability and dual-rail reference terminals (+VLD/–VLD); requires separate ground-referenced placement. | Select when only unidirectional protection is needed and board space allows discrete placement per line. |
| ESD56081D05 | Bidirectional, 5 V VRWM, 6.5 V VBR, 0.9 pF Cj, 12 A Ipp (8/20 µs), SOT23-6 | Lower working voltage limits use to ≤5 V systems; not rated for VDSL2 line driver protection at 8–24 V bias. | Prefer for USB or low-voltage data lines; avoid for xDSL line-side protection due to insufficient VRWM margin. |
Compared with SP1002-008KTG and ESD56081D05, DSL04-008SC6 uniquely combines 8 V VRWM, bidirectional symmetry, dual reference terminals, and 1 pF capacitance-making it the only option qualified for direct integration into VDSL2 line driver protection circuits per IEC 61000-4-2/4-5.
Availability
DSL04-008SC6 is available at Aetrix Electronics and suitable for VDSL2 CPE design, DSLAM line card production, and industrial Ethernet-over-copper gateway development requiring stable component supply and long-term lifecycle support.
Supply support for DSL04-008SC6 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, delivering intelligent power, analog, MEMS, and microcontroller solutions for automotive, industrial, and communications markets.
DSL04 belongs to ST's high-speed line protection product line, engineered specifically for telecom-grade surge resilience in xDSL physical layer interfaces while preserving signal bandwidth and DC bias integrity.
FAQ
What is the maximum continuous operating voltage for DSL04-008SC6?
The maximum continuous reverse operating voltage (VRM) is 8 V. This value defines the highest DC or RMS AC voltage that can be continuously applied across the device without exceeding specified leakage current limits (≤0.2 µA at 25 °C). Operation above 8 V risks premature conduction and accelerated aging.
Can +VLD and –VLD pins be left unconnected?
Yes. The +VLD and –VLD pins are optional reference terminals. When left unconnected, DSL04-008SC6 operates as a standard bidirectional differential TVS. Connecting them enables configurable common-mode clamping-e.g., tying –VLD to ground and +VLD to a positive rail creates asymmetric protection thresholds aligned with system biasing.
How does DSL04-008SC6 differ from DSL04-005SC6?
DSL04-008SC6 has a higher working voltage (8 V vs. 5 V VRM) and breakdown voltage (10 V vs. 6.5 V VBR), making it suitable for VDSL2 line drivers operating at higher bias voltages. Both share identical package, capacitance (1 pF), leakage (0.2 µA), and surge ratings-but DSL04-005SC6 is intended for lower-voltage ADSL/ISDN interfaces.
Is DSL04-008SC6 compatible with lead-free reflow soldering?
Yes. DSL04-008SC6 uses a lead-free, RoHS-compliant SOT23-6L package qualified for standard JEDEC J-STD-020 reflow profiles, including peak temperatures up to 245 °C for 20–40 seconds. ST specifies a recommended profile with ramp rates ≤3 °C/s and a 60-second liquidus duration (max 90 s).
DSL04-008SC6 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):
- 8V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 15A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
DSL04-008SC6 FAQ
1.How can I place an order for DSL04-008SC6 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSL04-008SC6 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 DSL04-008SC6 reliable?
The price and inventory of DSL04-008SC6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSL04-008SC6 is usually 5 days.
3.What payment methods are accepted for DSL04-008SC6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSL04-008SC6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSL04-008SC6?
DSL04-008SC6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSL04-008SC6 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 DSL04-008SC6?
For technical support, including DSL04-008SC6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSL04-008SC6 requirements.
6.How does Aetrix verify that DSL04-008SC6 is sourced from the original manufacturer or authorized distributors?
All DSL04-008SC6 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 DSL04-008SC6 meets industry standards.
7.What is the process for return or replacement of DSL04-008SC6?
All DSL04-008SC6 units undergo pre-shipment inspection (PSI). If there is an issue with DSL04-008SC6, 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 DSL04-008SC6 part is unused and in its original packaging.
Return procedure for DSL04-008SC6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DSL04-008SC6 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
