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Diodes Incorporated L30ESD24VC3-2
- Part No.:
- L30ESD24VC3-2
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
L30ESD24VC3-2.pdf
- Description:
- ESD SUPPRESSOR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,468
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Product details
Overview
L30ESD24VC3-2 from Diodes Incorporated is a unidirectional ESD protection diode in SOT-23 package, rated for 24 V reverse stand-off voltage, 300 W peak pulse power (8/20 µs), and clamping voltage of 36 V at 1 A, used to safeguard high-speed data lines in portable electronics against IEC 61000-4-2 Level 4 ESD events.
For engineers reviewing the L30ESD24VC3-2 datasheet, L30ESD24VC3-2 pinout, L30ESD24VC3-2 application, or L30ESD24VC3-2 equivalent, key selection criteria include clamping voltage at defined IPP, junction capacitance under 60 pF at 0 V, 24 V VRWM tolerance, and SOT-23 footprint compatibility with high-density PCB layouts.
Technical Context
This device implements two independent unidirectional TVS structures in a single SOT-23-3 package, each with cathode-ground configuration (Pins 1&2 = cathode, Pin 3 = ground). It operates as a low-capacitance transient suppressor optimized for signal integrity on 24 V-rated interfaces.
Designed per IEC 61000-4-2 (±15 kV air / ±8 kV contact) and MIL-STD-883C Method 3015-6 Class 3 (>25 kV), it delivers 36 V clamping at 1 A and 43 V at 4 A while maintaining ≤60 pF junction capacitance - critical for USB 2.0, HDMI, and industrial sensor bus protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 24 V - Maximum continuous operating voltage before conduction begins; defines safe working range for 24 V signal rails. |
| Breakdown Voltage (VBR) | 26.7–29.6 V at IR = 1 mA - Ensures reliable triggering above normal operating voltage with margin against false triggering. |
| Clamping Voltage (VC) | 36 V at IPP = 1 A; 43 V at IPP = 4 A - Limits transient voltage seen by downstream ICs during ESD strikes. |
| Junction Capacitance | 30–60 pF at VR = 0 V, f = 1 MHz - Low enough to avoid signal distortion on data lines up to ~100 Mbps. |
| Peak Pulse Power | 300 W at tp = 8/20 µs - Withstands high-energy transients without degradation in compact SOT-23 form factor. |
| ESD Rating | >±15 kV (air), >±8 kV (contact) per IEC 61000-4-2 Level 4 - Meets industrial and consumer immunity requirements. |
Pinout & Package
SOT-23-3 package with gull-wing leads, RoHS-compliant matte tin plating, UL 94V-0 molding compound, and dimensions per DS44372 Rev. 9-2: A = 0.89–1.05 mm, D = 2.75–3.04 mm, E = 1.20–1.60 mm, G = 1.70–2.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Channel 1) | Connected to protected signal line; conducts transient current to ground when voltage exceeds VBR. |
| 2 | Cathode (Channel 2) | Independent second protection path; enables dual-line shielding (e.g., differential pair or separate I/O lines). |
| 3 | Ground (Common Anode) | Shared return path for both channels; must be low-inductance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional Dual-Channel Protection | Two independent 24 V-rated TVS paths in one SOT-23-3 package - saves board space vs. discrete diodes. |
| Low Junction Capacitance | 30–60 pF - preserves signal rise/fall times on high-speed interfaces without added jitter or attenuation. |
| High ESD Immunity | >25 kV per MIL-STD-883C, Class 3 - exceeds automotive and industrial reliability test requirements. |
| Green Construction | Halogen- and antimony-free, lead-free, RoHS 3 compliant - meets global environmental compliance mandates. |
Applications
| USB 2.0 Data Lines | HDMI Hot-Plug Detection |
|---|---|
Use Scenario: Protecting D+ and D− lines in USB 2.0 peripherals against ESD during cable insertion or handling. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed inline between connector and USB transceiver. Use Value: Clamps transients to ≤43 V at 4 A while adding only 30–60 pF loading - maintains eye diagram integrity at 480 Mbps. | Use Scenario: Safeguarding HDMI HPD (Hot-Plug Detect) and DDC (Display Data Channel) lines from user-induced ESD. IC Role / Device Role / Timing Role: Dual-channel clamp isolating two low-voltage control signals sharing common ground return. Use Value: Prevents false HPD toggling or DDC communication failure during plug/unplug cycles with >±15 kV air-gap immunity. |
| Industrial Sensor Interfaces | Automotive Body Control Modules |
Use Scenario: Shielding analog or digital I/O lines (e.g., RS-485, CAN FD stubs) in factory automation sensors exposed to harsh ESD environments. IC Role / Device Role / Timing Role: Signal-line protector on 24 V supply-referenced sensor outputs requiring low-leakage (<1 µA) standby behavior. Use Value: Maintains <1 µA reverse leakage at 24 V while delivering 300 W surge handling - avoids DC offset errors or false triggers. | Use Scenario: Protecting LIN bus or diagnostic pins in BCMs where space-constrained SOT-23 placement is required near connectors. IC Role / Device Role / Timing Role: Compact dual-path ESD guard for bidirectional control lines operating at 12–24 V nominal rail voltages. Use Value: Enables compliance with ISO 10605 (330 pF/330 Ω) and IEC 61000-4-2 via 24 V VRWM and 43 V clamping at 4 A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Single-channel, SMA package, 300 W PPP, 38.9 V VC @ 1 A, 100 pF CJ | Higher capacitance limits use on >10 Mbps lines; larger footprint requires more PCB area. | Select when dual-channel integration is unnecessary and higher clamping voltage is acceptable. |
| TPD2E001DRSR | Two-channel unidirectional, 5.5 V VRWM, 12 pF CJ, 12 V VC @ 1 A, SOT-23-6 | Lower voltage rating and smaller clamping make it unsuitable for 24 V systems but ideal for 3.3/5 V logic. | Choose for low-voltage, ultra-low-capacitance applications where 24 V operation is not required. |
Compared with SMAJ24A and TPD2E001DRSR, L30ESD24VC3-2 uniquely balances 24 V stand-off, dual-channel integration in SOT-23-3, and sub-60 pF capacitance - making it optimal for space-constrained, medium-voltage data line protection where channel count and layout density matter.
Availability
L30ESD24VC3-2 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial sensor I/O hardening, and automotive body control module design requiring stable component supply and long-term lifecycle support.
Supply support for L30ESD24VC3-2 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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, computing, and automotive markets.
L30ESD24VC3-2 belongs to Diodes' ESD protection product line, engineered specifically for compact, high-efficiency transient suppression on medium-voltage data and control lines in portable and ruggedized electronics.
FAQ
What is the maximum clamping voltage of L30ESD24VC3-2 at 4 A?
The clamping voltage is 43 V at IPP = 4 A with an 8/20 µs waveform, as specified in the DS44372 Rev. 9-2 datasheet. This value ensures downstream 24 V-rated ICs remain within safe absolute maximum ratings during high-energy ESD events.
Can L30ESD24VC3-2 protect bidirectional signal lines like RS-485?
No - it is unidirectional only (cathode-to-ground configuration). For bidirectional lines, a symmetric dual-diode array such as SP3012-02UTG would be required. L30ESD24VC3-2 is intended for single-ended or ground-referenced signals like USB D+/D− or HDMI HPD.
Is the SOT-23-3 footprint compatible with standard reflow profiles?
Yes - it supports JEDEC J-STD-020D-compliant reflow profiles, including peak temperatures up to 260 °C for 10 seconds. The matte tin finish and Pb-free construction ensure compatibility with lead-free assembly processes without dewetting or voiding risks.
Does L30ESD24VC3-2 meet AEC-Q200 stress testing requirements?
No - it is not AEC-Q200 qualified. While it operates from −55 °C to +125 °C and passes MIL-STD-883C ESD testing, Diodes does not list this part in its AEC-Q200-qualified portfolio. Automotive designs requiring qualification should consider alternatives like D3V3Z5U-7-F.
L30ESD24VC3-2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 17A (8/20µs)
- Power - Peak Pulse:
- 250W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- 30pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
L30ESD24VC3-2 FAQ
1.How can I place an order for L30ESD24VC3-2 through Aetrix?
Please submit a Request for Quotation (RFQ) for L30ESD24VC3-2 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 L30ESD24VC3-2 reliable?
The price and inventory of L30ESD24VC3-2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L30ESD24VC3-2 is usually 5 days.
3.What payment methods are accepted for L30ESD24VC3-2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L30ESD24VC3-2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for L30ESD24VC3-2?
L30ESD24VC3-2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your L30ESD24VC3-2 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 L30ESD24VC3-2?
For technical support, including L30ESD24VC3-2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L30ESD24VC3-2 requirements.
6.How does Aetrix verify that L30ESD24VC3-2 is sourced from the original manufacturer or authorized distributors?
All L30ESD24VC3-2 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 L30ESD24VC3-2 meets industry standards.
7.What is the process for return or replacement of L30ESD24VC3-2?
All L30ESD24VC3-2 units undergo pre-shipment inspection (PSI). If there is an issue with L30ESD24VC3-2, 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 L30ESD24VC3-2 part is unused and in its original packaging.
Return procedure for L30ESD24VC3-2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
L30ESD24VC3-2 Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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