My Inquiry
My Account
Diodes Incorporated DBLC24CI-7
- Part No.:
- DBLC24CI-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DBLC24CI-7.pdf
- Description:
- Dataline Protection PP SOD323 T&
- Quantity:
- Payment:
- Shipping:
Inventory:5,458
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DBLC24CI-7 from Diodes Incorporated is a bidirectional ultra-low-capacitance TVS diode designed for ESD protection of high-speed data lines, featuring 24 V reverse working voltage, 0.6 pF typical input capacitance, ±20 kV contact/±30 kV air ESD rating per IEC 61000-4-2, and 6 A peak pulse current handling in an SOD323 package-used in USB 2.0 and 10/100/1000BASE-T Ethernet interfaces.
For engineers reviewing the DBLC24CI-7 datasheet, DBLC24CI-7 pinout, DBLC24CI-7 application, or DBLC24CI-7 equivalent, key selection criteria include clamping voltage at 6 A (58 V), low capacitance for signal integrity, thermal resistance (500 °C/W), and SOD323 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a single-channel, bidirectional transient voltage suppressor optimized for electrostatic discharge suppression on unidirectional or bidirectional signal paths. Its silicon avalanche structure enables fast response (<1 ns) to ESD transients while maintaining sub-1 μA leakage at 24 V reverse bias.
The SOD323 package supports automated placement and reflow soldering with JEDEC Level 1 moisture sensitivity, and its 0.6 pF capacitance ensures minimal signal distortion up to 3 GHz-critical for USB 2.0 (480 Mbps) and Gigabit Ethernet PHY interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 24 V - Maximum continuous DC or RMS signal voltage before conduction begins. |
| Breakdown Voltage (VBR) | 26.7 V min at 1 mA - Threshold where avalanche conduction initiates under transient stress. |
| Clamping Voltage (VCL) | 58 V max at 6 A, 8/20 µs - Peak voltage seen by protected circuit during worst-case surge. |
| Input Capacitance (CIN) | 0.6 pF typ at 0 V, 1 MHz - Enables <0.1 dB insertion loss in 50 Ω USB/GigE traces. |
| ESD Rating | ±20 kV contact / ±30 kV air - Meets IEC 61000-4-2 Level 4 for system-level immunity. |
| Peak Pulse Power | 350 W at 8/20 µs - Sustains multiple ESD events without degradation. |
| Thermal Resistance (RθJA) | 500 °C/W - Requires minimal copper area for thermal management in FR-4 layouts. |
Pinout & Package
Package: SOD323 - 2-pin surface-mount plastic package, 1.30 mm × 1.70 mm body, 0.30 mm nominal lead length, matte tin-plated alloy 42 leadframe, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | ESD current sink path (bidirectional) | Connected to protected line; conducts transient current to cathode during positive or negative ESD event. |
| Cathode (Pin 2) | ESD current return path (bidirectional) | Typically tied to ground plane; completes low-inductance path for transient energy dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD clamping | Protects AC-coupled or differential lines (e.g., USB D+/D−, Ethernet pairs) without polarity constraints. |
| 0.6 pF input capacitance | Preserves signal edge rate and eye diagram integrity in 480 Mbps USB 2.0 and 1.25 Gbps Ethernet applications. |
| ±20 kV contact ESD rating | Exceeds IEC 61000-4-2 Level 4, enabling robust front-panel and connector interface protection. |
| SOD323 footprint | Enables placement adjacent to connectors with minimal trace length, reducing parasitic inductance and improving clamping efficacy. |
| Lead-free & halogen-free | Complies with RoHS 3 (2015/863/EU) and automotive "Green" standards (<900 ppm Br/Cl, <1000 ppm Sb). |
Applications
| USB 2.0 Interfaces | Ethernet PHY Protection |
|---|---|
Use Scenario: Protecting D+ and D− data lines of USB 2.0 host/device ports against user-handling ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed within 3 mm of USB connector, shunting transients before reaching transceiver IC. Use Value: Maintains 480 Mbps signaling integrity with <0.1 dB loss due to 0.6 pF capacitance and limits clamping voltage to ≤58 V at 6 A. | Use Scenario: Safeguarding 10/100/1000BASE-T Ethernet magnetics secondary side or PHY pins from cable-discharge events. IC Role / Device Role / Timing Role: One DBLC24CI-7 per differential pair (e.g., TX+/TX−), mounted directly at RJ-45 jack footprint. Use Value: Prevents PHY latch-up or damage while preserving signal rise/fall times via ultra-low capacitance and sub-1 ns response. |
| Wireless Module Antenna Ports | Industrial Sensor Interface Lines |
Use Scenario: ESD protection on RF front-end antenna switch control lines or low-speed GPIOs in handheld wireless systems. IC Role / Device Role / Timing Role: Clamp on antenna tuning or band-switch control signals exposed to user-accessible zones. Use Value: Survives repeated ±30 kV air discharge without parameter shift, verified over >1000 ESD strikes per IEC test protocol. | Use Scenario: Shielding analog or digital sensor outputs (e.g., I²C, SPI, RS-485) in factory-floor equipment from maintenance-tool ESD. IC Role / Device Role / Timing Role: Single-channel protection on sensor bus lines routed through metal enclosures or operator panels. Use Value: Delivers 24 V working voltage margin above common 3.3 V/5 V/12 V sensor supply rails and withstands industrial ambient temperatures up to +150 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | 0.8 pF CIN, 15 V VRWM, 30 kV air ESD, SOT-553 package | Lower working voltage limits use to ≤15 V systems; larger 1.6 mm × 1.6 mm footprint | Select when lower clamping voltage (25 V @ 1 A) is prioritized over bandwidth preservation. |
| SMA6J24A-Q | 24 V VRWM, 100 pF CIN, 600 W PPP, DO-214AC package | High capacitance restricts use to DC/low-frequency lines only; unsuitable for USB/Ethernet | Choose only for power-rail or low-speed control-line protection where capacitance is non-critical. |
Compared with TPD2E001DRYR and SMA6J24A-Q, DBLC24CI-7 uniquely balances 24 V operating margin, 0.6 pF capacitance, and SOD323 size-making it optimal for high-speed data line protection where signal fidelity and board space are constrained.
Availability
DBLC24CI-7 is available at Aetrix Electronics and suitable for USB 2.0 interfaces, Gigabit Ethernet PHY protection, and industrial sensor interface lines requiring stable component supply across production lifecycles.
Supply support for DBLC24CI-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The DBLC24CI-7 belongs to Diodes' ultra-low-capacitance TVS portfolio, engineered specifically for high-speed data line ESD protection in consumer, computing, and industrial connectivity applications.
FAQ
What is the maximum clamping voltage of DBLC24CI-7 at 6 A?
The maximum clamping voltage is 58 V under 8/20 µs waveform conditions at 6 A peak pulse current, as specified in the Electrical Characteristics table of DS43658 Rev. 2–2. This value ensures downstream transceivers remain within safe operating voltage limits during worst-case ESD events.
Can DBLC24CI-7 be used for USB 3.0 or higher-speed interfaces?
No-DBLC24CI-7 is characterized for 0.6 pF capacitance at 1 MHz, and its frequency response degrades above ~1 GHz. It is validated for USB 2.0 (480 Mbps) and 1000BASE-T, but not for USB 3.x (5+ Gbps), PCIe, or HDMI, which require sub-0.3 pF devices with tighter capacitance tolerance.
Is DBLC24CI-7 qualified for automotive applications?
DBLC24CI-7 is not AEC-Q101 qualified. The datasheet explicitly states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing-customers must contact Diodes directly for qualified alternatives such as the D3V3Z1BQ series.
How does the SOD323 package affect thermal performance?
With RθJA = 500 °C/W on standard FR-4 (2 oz copper), the SOD323 limits continuous power dissipation to 250 mW. For transient ESD events, thermal mass is sufficient due to short pulse duration (<100 ns), but sustained overvoltage requires external current limiting or derating per Figure 4's TJ derating curve.
DBLC24CI-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 58V
- Current - Peak Pulse (10/1000µs):
- 6A (8/20µs)
- Power - Peak Pulse:
- 350W
- Power Line Protection:
- No
- Applications:
- Ethernet, USB
- Capacitance @ Frequency:
- 0.6pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
DBLC24CI-7 FAQ
1.How can I place an order for DBLC24CI-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLC24CI-7 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 DBLC24CI-7 reliable?
The price and inventory of DBLC24CI-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLC24CI-7 is usually 5 days.
3.What payment methods are accepted for DBLC24CI-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLC24CI-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLC24CI-7?
DBLC24CI-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLC24CI-7 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 DBLC24CI-7?
For technical support, including DBLC24CI-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLC24CI-7 requirements.
6.How does Aetrix verify that DBLC24CI-7 is sourced from the original manufacturer or authorized distributors?
All DBLC24CI-7 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 DBLC24CI-7 meets industry standards.
7.What is the process for return or replacement of DBLC24CI-7?
All DBLC24CI-7 units undergo pre-shipment inspection (PSI). If there is an issue with DBLC24CI-7, 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 DBLC24CI-7 part is unused and in its original packaging.
Return procedure for DBLC24CI-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DBLC24CI-7 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…
