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STMicroelectronics ESDALC5-1BT2
- Part No.:
- ESDALC5-1BT2
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOD-882
- Datasheet:
-
ESDALC5-1BT2.pdf
- Description:
- TVS DIODE 5VWM SOD882T
- Quantity:
- Payment:
- Shipping:
Inventory:6,160
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Product details
Overview
ESDALC5-1BT2 from STMicroelectronics is a bidirectional single-line TVS diode in SOD882T package designed for ESD protection of high-speed data lines. It features 5.8 V minimum breakdown voltage, 26 pF junction capacitance at 0 V, ±30 kV IEC 61000-4-2 contact/air discharge rating, <60 nA leakage at 5 V, and 9 A peak pulse current-ideal for cellular handset I/O port protection.
For engineers reviewing the ESDALC5-1BT2 datasheet, ESDALC5-1BT2 pinout, ESDALC5-1BT2 application, or ESDALC5-1BT2 equivalent, key selection criteria include low-line capacitance for signal integrity, compact 0.6 mm² PCB footprint, monolithic reliability, and compliance with MIL-STD-883G Class 3 HBM and IEC 61000-4-2 Level 4.
Technical Context
This device operates as a clamping-type transient voltage suppressor with symmetrical bidirectional conduction between its two terminals (I/O1 and I/O2), enabling robust ESD protection without polarity constraints. Its low dynamic resistance (0.23–0.25 Ω) ensures rapid voltage clamping during fast transients, while the 11–17 V breakdown range supports stable triggering across process and temperature variations.
The SOD882T package enables ultra-compact placement on high-density PCBs, and its monolithic silicon construction eliminates bond-wire parasitics-critical for preserving RF performance up to 1 GHz, as confirmed by S21 attenuation measurements showing >25 dB suppression at 100 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 5.8 V min. (I/O2→I/O1, 1 mA); ensures reliable turn-on before damage to downstream ICs |
| Junction Capacitance (CLINE) | 26 pF at 0 V (1 MHz); preserves signal integrity on USB 2.0, HDMI, or MIPI D-PHY lines |
| Clamping Voltage (VCL) | 11 V max. (I/O2→I/O1, 8/20 µs, 9 A); limits stress on protected IC's I/O pins during ESD events |
| Leakage Current (IRM) | <60 nA at 5 V; avoids DC loading on low-power sensor or audio interfaces |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2); exceeds Level 4 immunity requirements |
| Peak Pulse Power | 150 W (8/20 µs); sustains multiple high-energy transients without degradation |
| Package | SOD882T; 0.6 mm² footprint, 0.82 mg weight, compatible with standard 0201 reflow profiles |
Pinout & Package
SOD882T is a surface-mount, two-terminal plastic package with exposed cathode marking (H) and defined pin 1 orientation per ST's marking layout. Dimensions: 1.00 × 0.60 × 0.45 mm (L × W × H), with 0.65 mm pitch between terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity required |
| I/O2 | Anode/Cathode (bidirectional) | Paired terminal completing symmetrical ESD path; identical electrical behavior to I/O1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential lines without polarity awareness |
| Low 26 pF capacitance | Maintains >25 dB insertion loss up to 1 GHz, suitable for 480 Mbps USB 2.0 signaling |
| Monolithic silicon integration | Eliminates wire-bond inductance, ensuring sub-nanosecond response to 150 ps ESD pulses |
| ECOPACK2 compliance | Fulfills RoHS, REACH, and halogen-free requirements without compromising surge robustness |
| 0.6 mm² PCB area | Reduces layout congestion in space-constrained mobile front-end modules and camera modules |
Applications
| USB 2.0 Data Lines | HDMI Hot-Plug Detection |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB ports against repeated ESD events during cable insertion. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed directly at connector, shunting transients before reaching USB PHY. Use Value: 26 pF capacitance prevents signal rise-time degradation; 11 V clamping keeps USB receiver input within safe operating range. | Use Scenario: Safeguarding HDMI HPD (Hot-Plug Detect) line in portable media players during frequent display connection/disconnection. IC Role / Device Role / Timing Role: Low-leakage (<60 nA) TVS maintaining DC logic level integrity while suppressing ±8 kV contact discharges. Use Value: Prevents false HPD toggling and ensures reliable plug detection without adding RC delay or power loss. |
| MIPI D-PHY Camera Interface | Audio Jack ESD Protection |
Use Scenario: Shielding high-speed clock and data lanes between image sensor and SoC in slim smartphone cameras. IC Role / Device Role / Timing Role: Ultra-low-capacitance TVS mounted adjacent to connector, minimizing stub length to preserve 1.5 Gbps eye diagram. Use Value: Sub-30 pF capacitance and 0.25 Ω dynamic resistance limit jitter increase to <0.5 UI, meeting MIPI D-PHY v2.1 spec. | Use Scenario: Protecting 3.5 mm audio jack mic and ground lines in wireless earbuds against user-hand ESD during handling. IC Role / Device Role / Timing Role: Compact bidirectional TVS placed at jack PCB entry point, absorbing ±15 kV human-body-model discharges. Use Value: 0.6 mm² footprint fits within tight jack mounting zone; <60 nA leakage avoids bias shift in electret microphone preamp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDALC6-1BT2 | Higher 6.2 V min. breakdown voltage; same 26 pF capacitance and SOD882T package | Better suited for 5 V tolerant I/O rails where higher trigger threshold reduces false triggering | Select when protecting 5 V logic with margin above VCC, not for 3.3 V or lower systems |
| TPD1E05U06DPYR | Lower 5.5 V breakdown; 0.5 pF lower capacitance (25.5 pF); same 2-pin SOD-523 package | Marginally better high-frequency performance but lower ESD robustness (±12 kV contact) | Prefer only when system-level ESD testing confirms ±12 kV sufficiency and 0.5 pF matters for >1 GHz links |
Compared with ESDALC6-1BT2 and TPD1E05U06DPYR, ESDALC5-1BT2 delivers optimal balance of low-voltage triggering (5.8 V), proven ±30 kV immunity, and production-ready 26 pF performance-making it the default choice for cost-sensitive, high-volume mobile I/O protection where full IEC 61000-4-2 Level 4 compliance is mandatory.
Availability
ESDALC5-1BT2 is available at Aetrix Electronics and suitable for cellular phone handsets, USB peripheral interfaces, and HDMI consumer electronics requiring stable component supply and full IEC 61000-4-2 Level 4 ESD immunity.
Supply support for ESDALC5-1BT2 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 analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
The ESDALC series targets high-speed interface protection, emphasizing ultra-low capacitance, monolithic reliability, and compact packaging for next-generation mobile and wearable electronics.
FAQ
What is the maximum operating temperature for ESDALC5-1BT2?
The junction temperature range is –55 °C to +150 °C, and storage temperature extends to –65 °C to +150 °C. The device maintains specified electrical characteristics across this full range, with leakage current rising predictably to ~1000 nA at 150 °C (per Figure 3 and 4).
Does ESDALC5-1BT2 require external biasing or control signals?
No. It is a passive, two-terminal device with no bias, enable, or configuration pins. It functions solely through avalanche breakdown and clamping action-no external circuitry, power, or firmware is needed for operation.
How does the SOD882T package differ mechanically from SOD882?
SOD882T has reduced body height (0.30–0.40 mm vs. 0.40–0.50 mm for SOD882) and identical terminal dimensions, enabling tighter stacking clearance in multi-layer mobile PCBs while retaining compatibility with standard 0201 pick-and-place tooling.
Can ESDALC5-1BT2 protect against lightning-induced surges?
No. It is rated for ESD transients (IEC 61000-4-2, 150 W, 8/20 µs), not lightning (IEC 61000-4-5, kA-level, 10/1000 µs). For lightning, use higher-energy TVS arrays or gas discharge tubes upstream of this device.
ESDALC5-1BT2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SOD-882
- Series:
- ESDA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 5.8V
- 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-882T
ESDALC5-1BT2 FAQ
1.How can I place an order for ESDALC5-1BT2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDALC5-1BT2 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 ESDALC5-1BT2 reliable?
The price and inventory of ESDALC5-1BT2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDALC5-1BT2 is usually 5 days.
3.What payment methods are accepted for ESDALC5-1BT2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDALC5-1BT2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDALC5-1BT2?
ESDALC5-1BT2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDALC5-1BT2 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 ESDALC5-1BT2?
For technical support, including ESDALC5-1BT2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDALC5-1BT2 requirements.
6.How does Aetrix verify that ESDALC5-1BT2 is sourced from the original manufacturer or authorized distributors?
All ESDALC5-1BT2 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 ESDALC5-1BT2 meets industry standards.
7.What is the process for return or replacement of ESDALC5-1BT2?
All ESDALC5-1BT2 units undergo pre-shipment inspection (PSI). If there is an issue with ESDALC5-1BT2, 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 ESDALC5-1BT2 part is unused and in its original packaging.
Return procedure for ESDALC5-1BT2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDALC5-1BT2 Tags
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