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Diodes Incorporated DBLC15CI-7
- Part No.:
- DBLC15CI-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DBLC15CI-7.pdf
- Description:
- Dataline Protection PP SOD323 T&
- Quantity:
- Payment:
- Shipping:
Inventory:5,429
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Product details
Overview
DBLC15CI-7 from Diodes Incorporated is a bidirectional ultra-low-capacitance TVS diode designed for ESD protection of high-speed data lines, featuring 0.6 pF typical input capacitance, 15 V reverse working voltage, ±27 kV contact/±30 kV air ESD rating per IEC 61000-4-2, and 9.5 A peak pulse current (8/20 μs), deployed in USB 2.0 and 10/100/1000BASE-T Ethernet interfaces.
For engineers reviewing the DBLC15CI-7 datasheet, DBLC15CI-7 pinout, DBLC15CI-7 application, or DBLC15CI-7 equivalent, this device is selected for signal integrity–critical ESD protection where sub-1 pF capacitance and fast clamping response are required to avoid data distortion on 480 Mbps USB or gigabit Ethernet lanes.
Technical Context
The DBLC15CI-7 implements a single-channel, symmetric (bidirectional) avalanche-clamping structure optimized for transient suppression without DC bias dependency. Its low-junction-capacitance design minimizes signal loading on differential or single-ended high-frequency lines.
It operates within –55°C to +150°C junction temperature range, delivers 36.8 V clamping voltage at 9.5 A peak pulse current (8/20 μs), and maintains <1 μA leakage at 15 V reverse bias - enabling reliable protection in thermally demanding industrial and automotive-adjacent environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 15 V - Maximum continuous DC or RMS signal voltage the line can carry without triggering conduction. |
| Breakdown Voltage | 16.7 V min at 1 mA - Ensures robust margin above 15 V operating rail before avalanche onset. |
| Clamping Voltage | 36.8 V max at 9.5 A (8/20 μs) - Limits transient overvoltage seen by downstream ICs during ESD events. |
| Input Capacitance | 0.6 pF typ at 0 V, 1 MHz - Preserves signal integrity on USB 2.0 (480 Mbps) and 1000BASE-T (1 Gbps) differential pairs. |
| ESD Rating | ±27 kV contact / ±30 kV air per IEC 61000-4-2 - Meets Level 4 system-level ESD immunity requirements. |
| Peak Pulse Power | 350 W at 8/20 μs - Sustains high-energy transients without thermal runaway under standard surge waveform. |
Pinout & Package
Package: SOD323 - 2-pin surface-mount plastic package with matte tin-plated alloy 42 leadframe, 0.004 g weight, UL 94V-0 rated molding compound, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | ESD current sink path (bidirectional) | Connected to protected signal line; conducts transient current to cathode during either polarity surge. |
| Cathode (Pin 2) | ESD current return path (bidirectional) | Typically tied to ground plane; completes low-inductance discharge path for both positive and negative ESD pulses. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD compliance | ±27 kV contact / ±30 kV air - Eliminates need for external ESD test failure rework in end-equipment certification. |
| Ultra-low input capacitance | 0.6 pF typical - Prevents rise-time degradation and bit-error-rate increase on high-speed serial links. |
| Single-channel bidirectional protection | One device protects full-duplex or AC-coupled lines without polarity constraints - reduces BOM count vs. unidirectional solutions. |
| Lead-free & green construction | Halogen- and antimony-free, RoHS 3 compliant - Supports environmental compliance for global industrial and consumer shipments. |
Applications
| USB 2.0 Interface Protection | Ethernet PHY Line Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− pins of USB 2.0 transceivers against user-handling ESD in portable docking stations. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: 0.6 pF capacitance avoids signal integrity loss at 480 Mbps, while ±27 kV contact rating ensures pass/fail compliance in IEC 61000-4-2 testing. |
Use Scenario: Shielding MDI differential pairs in 1000BASE-T Ethernet PHYs from cable-discharge events in enterprise switches. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted adjacent to RJ45 magnetics to clamp surges before reaching PHY inputs. Use Value: Symmetric clamping preserves common-mode rejection ratio (CMRR) and prevents receiver saturation during fast-rising ESD transients. |
| Handheld Wireless Antenna Feedline | Industrial Sensor Interface |
|
Use Scenario: Guarding RF front-end antenna switch control lines in LTE/Wi-Fi modules against board-level ESD coupling. IC Role / Device Role / Timing Role: Signal-line protector on GPIO-controlled RF path selection lines operating near RF bands. Use Value: Sub-1 pF capacitance prevents detuning of matching networks and avoids insertion loss degradation at 2.4 GHz/5 GHz. |
Use Scenario: Securing analog sensor outputs (e.g., RS-485, CAN FD stubs) in factory automation gateways exposed to maintenance personnel ESD. IC Role / Device Role / Timing Role: Point-of-entry TVS on isolated interface lines upstream of digital isolators or level shifters. Use Value: 15 V VRWM aligns with 12 V industrial bus rails; 36.8 V clamping ensures downstream logic remains within safe absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR (TI) | 0.8 pF typical capacitance; 14 V VRWM; ±8 kV IEC 61000-4-2 contact rating | Limited to lower-tier ESD immunity requirements; not suitable for Level 4 certified systems | Select when cost sensitivity outweighs highest-level ESD robustness and 0.6 pF is noncritical. |
| SZ1.5SMC15AT3G (onsemi) | 1500 pF typical capacitance; 15 V VRWM; 100 A IPP; designed for power-line surge, not signal lines | Unusable on >10 Mbps data lines due to excessive capacitive loading | Only appropriate for DC power rail or low-frequency analog protection - avoid for USB/Ethernet. |
Compared with TPD2E001DRYR and SZ1.5SMC15AT3G, the DBLC15CI-7 uniquely balances Level 4 ESD immunity, sub-1 pF capacitance, and 15 V working voltage - making it irreplaceable for certified high-speed serial interface protection where signal fidelity and surge robustness are jointly constrained.
Availability
DBLC15CI-7 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, 1000BASE-T Ethernet PHY safeguarding, and handheld wireless antenna feedline ESD hardening requiring stable component supply across production lifecycles.
Supply support for DBLC15CI-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 spanning Asia, Europe, and North America.
The DBLC15CI-7 belongs to Diodes' ultra-low-capacitance TVS portfolio, engineered specifically for high-speed data line protection in consumer, industrial, and networking equipment where ESD robustness must coexist with signal integrity.
FAQ
What is the maximum clamping voltage of DBLC15CI-7 at its rated peak pulse current?
The DBLC15CI-7 exhibits a maximum clamping voltage of 36.8 V when subjected to a 9.5 A peak pulse current with an 8/20 μs waveform, as specified in the Electrical Characteristics table of DS43656 Rev. 2–2. This value ensures downstream transceivers remain within their absolute maximum voltage ratings during worst-case ESD events.
Can DBLC15CI-7 be used on differential USB 2.0 lines without degrading eye diagram margins?
Yes - with 0.6 pF typical input capacitance at 1 MHz and minimal parasitic inductance in the SOD323 package, the DBLC15CI-7 introduces negligible rise-time degradation or jitter on USB 2.0 D+/D− signals. Layout best practices (short traces, symmetric placement, ground plane proximity) maintain eye opening >60% at 480 Mbps.
Is DBLC15CI-7 qualified to AEC-Q200 for automotive use?
No - the DBLC15CI-7 is not AEC-Q200 qualified. The datasheet explicitly states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing; users needing automotive qualification must contact Diodes Incorporated directly for designated AEC-compliant alternatives.
What is the thermal resistance (RθJA) of DBLC15CI-7 under standard PCB conditions?
The thermal resistance from junction to ambient (RθJA) is 500 °C/W when mounted on a standard FR-4 PCB with 2 oz copper per Diodes' recommended pad layout (Document DS43656 Rev. 2–2, Note 5). This value assumes no additional copper pour or thermal vias beyond the baseline footprint.
DBLC15CI-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):
- 15V (Max)
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 36.8V
- Current - Peak Pulse (10/1000µs):
- 9.5A (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
DBLC15CI-7 FAQ
1.How can I place an order for DBLC15CI-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLC15CI-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 DBLC15CI-7 reliable?
The price and inventory of DBLC15CI-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLC15CI-7 is usually 5 days.
3.What payment methods are accepted for DBLC15CI-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLC15CI-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLC15CI-7?
DBLC15CI-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLC15CI-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 DBLC15CI-7?
For technical support, including DBLC15CI-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLC15CI-7 requirements.
6.How does Aetrix verify that DBLC15CI-7 is sourced from the original manufacturer or authorized distributors?
All DBLC15CI-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 DBLC15CI-7 meets industry standards.
7.What is the process for return or replacement of DBLC15CI-7?
All DBLC15CI-7 units undergo pre-shipment inspection (PSI). If there is an issue with DBLC15CI-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 DBLC15CI-7 part is unused and in its original packaging.
Return procedure for DBLC15CI-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DBLC15CI-7 Tags
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ESD9B5.0ST5G
onsemi
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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