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STMicroelectronics ESDZL5-1F4
- Part No.:
- ESDZL5-1F4
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
ESDZL5-1F4.pdf
- Description:
- TVS DIODE 5.5VWM 10VC 0201
- Quantity:
- Payment:
- Shipping:
Inventory:135,483
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Product details
Overview
ESDZL5-1F4 from STMicroelectronics is a unidirectional single-line TVS diode designed for ESD protection of high-speed data lines, featuring 7.5–9.5 pF capacitance, 9.5 V clamping voltage (8 kV contact discharge), and 5.5 V stand-off voltage in a 0201 package. It targets space-constrained portable electronics requiring low-capacitance, low-clamping transient suppression.
For engineers reviewing the ESDZL5-1F4 datasheet, ESDZL5-1F4 pinout, ESDZL5-1F4 application, or ESDZL5-1F4 equivalent, key selection criteria include line capacitance ≤9.5 pF, clamping voltage ≤10 V at 7 A, stand-off voltage ≥5.5 V, and compatibility with 0201 SMT assembly processes for smartphones and wearables.
Technical Context
This device operates as a snapback-type unidirectional TVS, triggering above 5.8 V (typ.) and holding conduction until voltage drops below 4.0 V (min.), enabling fast recovery after ESD events. Its ultra-low dynamic resistance (0.2 Ω) ensures minimal voltage overshoot during 7 A, 8/20 µs transients.
Designed for I/O line protection in DC-biased interfaces, it requires DC bias <4.0 V to guarantee return to non-conducting state post-transient. The 0201 footprint (0.18 mm² PCB area) supports miniaturized layouts without compromising IEC 61000-4-2 Level 4 compliance (±30 kV air / ±15 kV contact).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 5.5 V - Maximum continuous reverse voltage before leakage exceeds 100 nA; sets upper limit for protected line DC bias. |
| Clamping Voltage (VCL) | 9.5 V @ 8 kV contact discharge - Peak voltage seen by protected circuit during worst-case ESD strike; critical for IC input tolerance. |
| Line Capacitance (CLINE) | 7.5–9.5 pF @ 1 MHz - Enables use on USB 2.0, MIPI D-PHY, and I²C lines without signal integrity degradation. |
| Peak Pulse Current (IPP) | 7 A @ 8/20 µs - Sustains full IEC 61000-4-2 Level 4 stress without failure; defines surge handling capability. |
| Trigger Voltage (VTrig) | 5.8–10 V - Threshold where device transitions from high-impedance to low-impedance clamping; determines turn-on speed and margin vs. VRM. |
| Dynamic Resistance (RD) | 0.2 Ω - Limits voltage rise during current surge; directly impacts clamping performance under high di/dt transients. |
Pinout & Package
The ESDZL5-1F4 is housed in a standard 0201 surface-mount package (0.6 mm × 0.3 mm, 0.3 mm height), compliant with ECOPACK®2 environmental requirements. Pin 1 is marked by a bar on the component body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to protected signal line; forward-biased during negative ESD transients (e.g., -8 kV contact discharge). |
| Pin 2 | Cathode | Connected to ground; provides low-impedance path for ESD current during positive transients (e.g., +8 kV contact discharge). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low line capacitance | 7.5–9.5 pF enables integration on >100 Mbps digital interfaces (e.g., USB 2.0, MIPI D-PHY) without bandwidth loss. |
| Low clamping voltage | 9.5 V peak under 8 kV contact discharge protects 5 V-tolerant I/O pins without latch-up risk. |
| 0201 footprint | 0.18 mm² PCB area reduces layout congestion in multi-line protection arrays for compact mobile PCBs. |
| IEC 61000-4-2 Level 4 compliance | Withstands ±30 kV air / ±15 kV contact discharge - meets highest industrial ESD immunity requirement. |
Applications
| Smartphones & Accessories | Wearable Electronics |
|---|---|
Use Scenario: Protecting USB-C CC and SBU lines from user-handling ESD during cable insertion. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between connector and PMIC/USB controller. Use Value: 9.5 V clamping prevents damage to 5 V-tolerant PHY inputs while 7.5 pF capacitance avoids signal rise-time degradation. | Use Scenario: Shielding touch sensor I²C bus (SDA/SCL) from electrostatic discharge during wristband contact. IC Role / Device Role / Timing Role: Single-line ESD suppressor on each I²C line, grounded to system GND plane. Use Value: 0201 size allows dual-channel protection within 1.2 mm² total area; 100 nA leakage preserves battery life in always-on sensing mode. |
| Tablets & Notebooks | Home Automation Sensors |
Use Scenario: Safeguarding MIPI D-PHY data lanes connecting display panel to SoC against ESD from stylus or finger contact. IC Role / Device Role / Timing Role: Per-lane TVS diode placed adjacent to display connector, minimizing trace length to ground. Use Value: 9.5 pF capacitance maintains >800 Mbps data rate integrity; 0.2 Ω RD limits voltage overshoot during 7 A transient. | Use Scenario: Protecting Zigbee/Thread RF module GPIOs exposed on edge connectors from installation ESD. IC Role / Device Role / Timing Role: Standoff-voltage-matched TVS (5.5 V VRM) on each GPIO, referenced to local digital ground. Use Value: 4.0–4.6 V holding voltage ensures automatic reset after transient; 100 nA IRM avoids loading low-power wake-up circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional single-line ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E10B06DPYR (TI) | 6 V VRM, 10.5 V VCL, 12 pF CLINE, 0201 package | Higher capacitance limits use on >480 Mbps interfaces; lower VRM restricts use on 5 V-biased lines | Select when 6 V standoff suffices and slightly higher clamping is acceptable for cost-sensitive designs. |
| ESD9X5.0ST5G (ON Semi) | 5 V VRM, 12 V VCL, 25 pF CLINE, SOD-923 package (0.8 × 0.6 mm) | Larger footprint (2.5× PCB area); higher capacitance excludes high-speed data lines | Choose only if 0201 assembly is unavailable and board space permits larger package. |
Compared with TPD1E10B06DPYR and ESD9X5.0ST5G, ESDZL5-1F4 offers the lowest capacitance (7.5–9.5 pF) and smallest footprint (0.18 mm²), making it optimal for space- and bandwidth-critical mobile I/O protection where 5.5 V standoff and sub-10 V clamping are required.
Availability
ESDZL5-1F4 is available at Aetrix Electronics and suitable for smartphones, wearable electronics, and tablets requiring stable component supply with guaranteed long-term availability and consistent 0201 assembly support.
Supply support for ESDZL5-1F4 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, specializing in automotive, industrial, power, and analog/mixed-signal solutions with over 40 years of innovation in protection devices.
The ESDZL series belongs to ST's dedicated ESD protection product line, engineered specifically for ultra-compact, high-performance transient suppression in consumer portable electronics with stringent capacitance and PCB area constraints.
FAQ
What is the maximum DC voltage that can be applied across ESDZL5-1F4 without triggering conduction?
The maximum continuous DC voltage is 5.5 V (VRM), defined as the reverse stand-off voltage where leakage remains ≤100 nA. Exceeding this risks premature conduction and increased power dissipation. For reliable recovery after ESD events, the DC bias must also stay below the minimum holding voltage of 4.0 V to ensure the device returns to its high-impedance state.
How does the 0201 package impact soldering reliability and thermal performance?
The 0201 package has a small thermal mass and limited pad area, requiring precise stencil design (75 µm thickness) and reflow profiling to avoid tombstoning or cold joints. Its low junction-to-ambient thermal resistance (enabled by direct copper pad contact) supports 60 W peak pulse power dissipation, but sustained power must remain negligible due to minimal silicon volume and no heatsinking capability.
Can ESDZL5-1F4 protect bidirectional signal lines like USB D+/D−?
No - ESDZL5-1F4 is unidirectional and only clamps positive transients on Pin 2 (cathode-to-ground) and negative transients on Pin 1 (anode-to-ground). For bidirectional lines such as USB D+/D−, two devices per line (anode-to-line/cathode-to-ground and cathode-to-line/anode-to-ground) or a dedicated bidirectional TVS (e.g., ESDZL5-2F4) are required to ensure symmetrical clamping in both polarities.
Why does the clamping voltage differ between Pin1→Pin2 and Pin2→Pin1 measurements?
The asymmetry arises from its unidirectional snapback structure: Pin2→Pin1 (cathode-to-ground) clamps at 3 V because the device conducts in forward direction during negative transients; Pin1→Pin2 (anode-to-ground) clamps at 9.5 V because it operates in reverse avalanche mode during positive transients. This behavior is inherent to single-diode unidirectional TVS topology and matches the intended protection directionality.
ESDZL5-1F4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 0201 (0603 Metric)
- Series:
- ESDZ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 10V
- Current - Peak Pulse (10/1000µs):
- 7A (8/20µs)
- Power - Peak Pulse:
- 60W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 7.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 0201
ESDZL5-1F4 FAQ
1.How can I place an order for ESDZL5-1F4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDZL5-1F4 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 ESDZL5-1F4 reliable?
The price and inventory of ESDZL5-1F4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDZL5-1F4 is usually 5 days.
3.What payment methods are accepted for ESDZL5-1F4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDZL5-1F4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDZL5-1F4?
ESDZL5-1F4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDZL5-1F4 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 ESDZL5-1F4?
For technical support, including ESDZL5-1F4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDZL5-1F4 requirements.
6.How does Aetrix verify that ESDZL5-1F4 is sourced from the original manufacturer or authorized distributors?
All ESDZL5-1F4 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 ESDZL5-1F4 meets industry standards.
7.What is the process for return or replacement of ESDZL5-1F4?
All ESDZL5-1F4 units undergo pre-shipment inspection (PSI). If there is an issue with ESDZL5-1F4, 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 ESDZL5-1F4 part is unused and in its original packaging.
Return procedure for ESDZL5-1F4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDZL5-1F4 Tags
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Diodes Incorporated
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Diodes Incorporated
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