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STMicroelectronics ESDALCL5-1BM2
- Part No.:
- ESDALCL5-1BM2
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOD-882
- Datasheet:
-
ESDALCL5-1BM2.pdf
- Description:
- TVS DIODE 3VWM SOD882
- Quantity:
- Payment:
- Shipping:
Inventory:21,196
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Product details
Overview
ESDALCL5-1BM2 from STMicroelectronics is a bidirectional single-line TVS diode designed for ESD protection of high-speed data lines, featuring 5.0 V minimum breakdown voltage, 26 pF typical capacitance at 0 V, 10 nA leakage at 3 V, SOD882 package (0.6 mm² PCB area), and compliance with IEC 61000-4-2 Level 4 (±30 kV contact/air discharge). It targets portable consumer electronics requiring low parasitic capacitance and minimal board space.
For engineers reviewing the ESDALCL5-1BM2 datasheet, ESDALCL5-1BM2 pinout, ESDALCL5-1BM2 application, or ESDALCL5-1BM2 equivalent, key selection criteria include line capacitance impact on signal integrity, leakage current effect on battery-powered operation, clamping voltage under 9 A IEC pulse, and SOD882 footprint compatibility with fine-pitch I/O routing in space-constrained designs.
Technical Context
The ESDALCL5-1BM2 implements a Transil-based bidirectional clamping structure optimized for transient suppression on unidirectional or bidirectional signal paths. Its symmetrical VBR (5–8 V reverse / 11–13 V forward) enables robust protection regardless of signal polarity, while low dynamic resistance (650 mΩ) ensures rapid voltage clamping during ESD events.
Designed for integration directly at I/O connectors or IC pins, it operates within -55 °C to +150 °C junction temperature range and sustains 150 W peak pulse power (8/20 µs waveform). The device's ECOPACK®2-compliant SOD882 package supports lead-free reflow per JEDEC J-STD-020, with maximum lead temperature of 260 °C for 10 s.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 5.0 V min (reverse), 11 V min (forward); defines minimum voltage at which clamping activates to protect downstream circuitry |
| Line Capacitance (Cline) | 26 pF typ at 0 V; preserves signal integrity on high-speed interfaces like USB 2.0 or HDMI up to ~500 MHz |
| Leakage Current (IRM) | 10 nA at 3 V; minimizes standby power drain in battery-operated portable devices |
| Clamping Voltage (VCL) | ~16 V at 9 A (8/20 µs); limits transient overvoltage seen by protected IC to safe levels |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2 Level 4); exceeds industrial immunity requirements |
| Package | SOD882 (0.6 mm² footprint); enables placement adjacent to connectors without compromising trace routing |
| Peak Pulse Power | 150 W (8/20 µs); handles worst-case ESD transients without degradation |
Pinout & Package
SOD882 surface-mount package: ultra-compact 2-terminal device with cathode bar marking on Pin 1 side; dimensions 0.60 × 1.00 mm (L × W), height 0.47 mm; requires precise stencil design (100 µm thickness, 90% opening ratio for leads) and controlled reflow profile (peak 240–245 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (cathode-bar marked side) | Connects to protected I/O line; polarity determines conduction direction during transient |
| Pin 2 | Cathode | Reference terminal tied to system ground or common return path for bidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD clamping | Enables protection of AC-coupled or differential signals without polarity constraints |
| Low 26 pF line capacitance | Maintains >500 MHz bandwidth on high-speed serial links without signal distortion |
| 10 nA leakage @ 3 V | Extends battery life in always-on portable healthcare and audio devices |
| 0.6 mm² PCB footprint | Reduces layout congestion near miniaturized connectors (e.g., micro-USB, SIM card slots) |
| ECOPACK®2 compliance | Meets RoHS, halogen-free, and lead-free soldering requirements for global market access |
Applications
| Portable Multimedia Players | Cellular Phone Handsets |
|---|---|
Use Scenario: ESD protection on headphone jack, micro-USB, or SD card interface in MP3 players and tablets. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed at connector entry point to clamp ±30 kV discharges before reaching codec or controller ICs. Use Value: 26 pF capacitance avoids audio band attenuation; 10 nA leakage preserves multi-day battery runtime. | Use Scenario: Signal line protection on front-panel touch buttons, proximity sensor I²C bus, and camera module flex cables. IC Role / Device Role / Timing Role: Low-capacitance shunt device absorbing HBM-class ESD pulses induced during user handling or assembly. Use Value: SOD882 size fits tight spacing between display FPC and main PCB; clamps transients below 16 V to prevent logic upset. |
| Notebook I/O Ports | Portable Healthcare Equipment |
Use Scenario: Protection of USB 2.0, HDMI, or audio jacks against accidental ESD during docking or peripheral insertion. IC Role / Device Role / Timing Role: First-line defense at port connector, limiting voltage overshoot to <16 V during 9 A IEC pulse. Use Value: Symmetrical VBR ensures protection for both hot-plug and idle states; low leakage avoids sensor bias drift. | Use Scenario: ESD safeguard on ECG electrode inputs, Bluetooth LE antenna feedlines, and USB charging ports in handheld monitors. IC Role / Device Role / Timing Role: Low-leakage TVS maintaining signal fidelity on high-impedance analog front-ends while surviving clinical-grade ESD stress. Use Value: 5 V min VBR aligns with 3.3 V rail tolerance; 0.6 mm² footprint enables placement directly at medical connector shell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E05U06DPYR | Lower capacitance (0.5 pF), higher VBR (6.5 V min), same SOD-523 package | Better for >1 GHz RF lines (e.g., Wi-Fi antenna), less suitable for 3.3 V logic due to higher clamping | Select when protecting ultra-high-frequency analog or RF paths where sub-1 pF capacitance is critical |
| ESD9X5.0ST5G | Higher leakage (100 nA @ 3 V), same 5 V VBR, SOD-923 package (smaller but less robust thermal dissipation) | Acceptable for cost-sensitive consumer audio, not recommended for precision analog sensors due to leakage-induced offset | Choose for non-battery-critical applications where footprint reduction outweighs leakage sensitivity |
Compared with TPD1E05U06DPYR and ESD9X5.0ST5G, ESDALCL5-1BM2 offers balanced performance: moderate 26 pF capacitance suits USB/audio interfaces, 10 nA leakage supports long battery life, and SOD882 provides better thermal margin than SOD-923 for repeated ESD events.
Availability
ESDALCL5-1BM2 is available at Aetrix Electronics and suitable for portable multimedia players, cellular phone handsets, and notebook I/O ports requiring stable component supply, consistent ESD immunity certification, and long-term production continuity.
Supply support for ESDALCL5-1BM2 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 microcontrollers, power ICs, sensors, and protection devices for automotive, industrial, and consumer markets.
The ESDALC series targets high-reliability ESD protection in space-constrained portable electronics, emphasizing low capacitance, ultra-low leakage, and compact packaging for next-generation mobile and medical devices.
FAQ
What is the maximum operating temperature for ESDALCL5-1BM2?
The ESDALCL5-1BM2 has a specified junction temperature range of -55 °C to +150 °C, with storage temperature from -65 °C to +150 °C. Its SOD882 package supports continuous operation at ambient temperatures up to +85 °C in standard PCB layouts, provided thermal relief is maintained per ST's reflow and layout guidelines.
Does ESDALCL5-1BM2 require external biasing or control signals?
No - ESDALCL5-1BM2 is a passive bidirectional TVS diode requiring no external power, bias, or control. It operates solely through avalanche breakdown when transient voltage exceeds its VBR threshold, automatically returning to high-impedance state once the event subsides.
Can ESDALCL5-1BM2 be used on differential pairs like USB D+/D-?
Yes - its symmetrical bidirectional structure allows placement across differential lines (e.g., one device per line, or shared ground configuration). With 26 pF capacitance per line and matched VBR, it maintains common-mode rejection and signal integrity without skew, validated in ST's application notes for USB 2.0 protection.
How does the 650 mΩ dynamic resistance affect clamping performance?
The 650 mΩ dynamic resistance (measured at IPP = 1 A, tp = 2.5 µs) directly determines voltage rise above VBR during ESD events. At 9 A peak pulse, this contributes ~5.85 V additional drop, resulting in total clamping voltage ~16 V - a value confirmed in Figure 8 of the datasheet and critical for ensuring downstream ICs remain within absolute maximum ratings.
ESDALCL5-1BM2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SOD-882
- Series:
- ESDA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3V
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 26pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-882
ESDALCL5-1BM2 FAQ
1.How can I place an order for ESDALCL5-1BM2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDALCL5-1BM2 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 ESDALCL5-1BM2 reliable?
The price and inventory of ESDALCL5-1BM2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDALCL5-1BM2 is usually 5 days.
3.What payment methods are accepted for ESDALCL5-1BM2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDALCL5-1BM2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDALCL5-1BM2?
ESDALCL5-1BM2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDALCL5-1BM2 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 ESDALCL5-1BM2?
For technical support, including ESDALCL5-1BM2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDALCL5-1BM2 requirements.
6.How does Aetrix verify that ESDALCL5-1BM2 is sourced from the original manufacturer or authorized distributors?
All ESDALCL5-1BM2 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 ESDALCL5-1BM2 meets industry standards.
7.What is the process for return or replacement of ESDALCL5-1BM2?
All ESDALCL5-1BM2 units undergo pre-shipment inspection (PSI). If there is an issue with ESDALCL5-1BM2, 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 ESDALCL5-1BM2 part is unused and in its original packaging.
Return procedure for ESDALCL5-1BM2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDALCL5-1BM2 Tags
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