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STMicroelectronics ESDA22P150-1U3M
- Part No.:
- ESDA22P150-1U3M
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 3-UDFN Exposed Pad
- Datasheet:
-
ESDA22P150-1U3M.pdf
- Description:
- TVS DIODE 20VWM 27.5VC 3QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,599
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Product details
Overview
ESDA22P150-1U3M from STMicroelectronics is a unidirectional single-line transient voltage suppressor (TVS) diode designed for high-power ESD and EOS protection on Vbus power lines. It delivers 4500 W peak pulse power (8/20 µs), clamps at ≤34 V under 150 A surge, and features a 20 V stand-off voltage with 0.25 µA leakage at 25 °C - ideal for USB power rail protection in compact portable electronics.
For engineers reviewing the ESDA22P150-1U3M datasheet, ESDA22P150-1U3M pinout, ESDA22P150-1U3M application, or ESDA22P150-1U3M equivalent, key selection criteria include clamping voltage at rated Ipp, dynamic resistance, IEC 61000-4-2 ±30 kV compliance, QFN-3 package thermal performance, and unidirectional polarity matching system ground architecture.
Technical Context
This TVS diode employs an avalanche breakdown structure optimized for fast response (<1 ns) to ESD transients and robust energy absorption across both 8/20 µs and 10/1000 µs waveforms. Its low dynamic resistance (0.06 Ω at 8/20 µs) ensures minimal voltage overshoot during high-current surges up to 150 A.
The device operates within –55 °C to +150 °C junction temperature range and maintains stable leakage (<250 nA at VRM = 20 V) across temperature. Its QFN-3 package integrates an exposed thermal pad for enhanced PCB heat dissipation during repetitive surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 20 V - maximum continuous DC operating voltage before leakage exceeds specification |
| Breakdown Voltage (VBR) | 21–23.5 V @ 1 mA - defines onset of avalanche conduction for reliable triggering |
| Clamping Voltage (VCL) | 31–34 V @ 150 A, 8/20 µs - limits peak voltage seen by protected IC during worst-case surge |
| Peak Pulse Power (Ppp) | 4500 W @ 8/20 µs - determines survivability against high-energy ESD/EOS events |
| Dynamic Resistance (RD) | 0.06 Ω @ 8/20 µs - governs voltage rise per ampere of surge current, critical for low-clamp design |
| Leakage Current (IRM) | 250 nA @ 20 V, 25 °C - ensures negligible standby power loss in battery-powered systems |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2 Level 4) - certifies immunity to real-world human-body ESD events |
Pinout & Package
ESDA22P150-1U3M uses a 3-pin QFN package (2.0 × 2.0 × 0.55 mm) with wettable flanks and an exposed thermal pad. Pin 1 and Pin 2 are internally connected GND terminals; Pin 3 is the Vbus line connection. The package enables high-density layout and efficient thermal transfer to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 & Pin 2 | Ground (GND) | Parallel-connected cathode return path - must be shorted externally to minimize inductance and improve clamping speed |
| Pin 3 | Vbus (Anode) | Input terminal for protected power line - connects directly to USB Vbus or battery feed prior to load switch |
Key Features
| Feature | Design Value |
|---|---|
| Low clamping voltage | 31 V max at 150 A (8/20 µs) - reduces stress on downstream DC-DC converters and load switches |
| High peak pulse power | 4500 W (8/20 µs) - withstands multiple IEC 61000-4-2 Level 4 discharges without degradation |
| Ultra-low dynamic resistance | 0.06 Ω - minimizes IR drop during surge, enabling tighter voltage margin design |
| QFN-3 with thermal pad | 2.0 × 2.0 mm footprint - saves board space vs. SOD-323/SMA packages while improving thermal reliability |
| Low leakage current | 0.25 µA @ 25 °C - preserves battery life in always-on portable devices |
Applications
| USB Vbus Protection | Smartphone Power Rail Protection |
|---|---|
Use Scenario: Protecting USB Type-C Vbus line from hot-plug surges and ESD during cable insertion. IC Role / Device Role / Timing Role: Unidirectional TVS placed between connector and power management IC (PMIC) input. Use Value: Clamps transients to ≤34 V, preventing PMIC overvoltage shutdown or latch-up during ±30 kV contact discharge. | Use Scenario: Safeguarding main battery input rail against ESD coupling through flex cables or button traces. IC Role / Device Role / Timing Role: Primary front-end surge protector upstream of battery fuel gauge and charging controller. Use Value: 4500 W rating absorbs multi-pulse ESD events without parametric shift, ensuring long-term BMS accuracy. |
| Tablet Charging Port Protection | Portable Medical Device Battery Input |
Use Scenario: Shielding micro-USB or proprietary charging port from user-hand ESD and inductive kickback. IC Role / Device Role / Timing Role: Standalone TVS on Vbus path, co-located with common-mode choke for combined EMI/ESD filtering. Use Value: 0.06 Ω RD enables sub-32 V clamping at 100 A, preserving USB PD negotiation integrity during surge. | Use Scenario: Securing Li-ion battery input in handheld diagnostic tools exposed to clinical ESD environments. IC Role / Device Role / Timing Role: First-line protection element before low-dropout regulator (LDO) and analog front-end circuitry. Use Value: 250 nA leakage prevents measurable battery drain over 5-year device lifetime, meeting IEC 60601-1 leakage limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | DO-214AC package; 32.4 V clamping @ 13.9 A (8/20 µs); 400 W Ppp | Larger footprint; lower surge rating; no thermal pad | Select when cost priority outweighs space/power density; not suitable for ≥100 A surge requirements |
| SP1003-02HTG | SOD-323 package; 24 V VRM; 33 V clamping @ 100 A; 3500 W Ppp | Smaller size but higher clamping; no integrated thermal pad | Choose for ultra-compact layouts where 3500 W rating suffices and thermal margin allows |
Compared with SMAJ20A and SP1003-02HTG, ESDA22P150-1U3M provides 11× higher peak power and 0.06 Ω dynamic resistance - enabling robust protection in space-constrained, high-surge USB and battery applications where thermal management and low-voltage clamping are critical.
Availability
ESDA22P150-1U3M is available at Aetrix Electronics and suitable for USB Vbus protection, smartphone power rail hardening, and portable medical device battery input circuits requiring stable component supply and full IEC 61000-4-2 Level 4 compliance.
Supply support for ESDA22P150-1U3M 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, MCU, power, and protection devices for automotive, industrial, and consumer markets.
ESDA22P150-1U3M belongs to ST's ESDA series of high-power TVS diodes, engineered specifically for board-level ESD immunity in space-constrained, high-reliability portable electronics with demanding surge endurance requirements.
FAQ
What is the recommended PCB layout for ESDA22P150-1U3M to ensure optimal clamping performance?
Minimize trace inductance by placing the device within 3 mm of the protected connector, using direct short traces from Pin 1/2 to solid ground plane, and connecting the exposed thermal pad to ≥4 thermal vias to inner ground layers. Avoid routing sensitive signals near the TVS or sharing ground paths with noisy digital circuits.
Can ESDA22P150-1U3M be used for bidirectional signal line protection?
No - it is a unidirectional TVS diode intended only for DC power line protection such as Vbus or battery inputs. Bidirectional protection requires symmetrical breakdown characteristics, which this device lacks; use ESDALx-1Ux or similar bidirectional arrays for data lines like USB D+/D−.
How does the 0.06 Ω dynamic resistance impact system-level ESD robustness?
This low RD value reduces the voltage overshoot (ΔV = Ipp × RD) during surge events - for example, limiting additional voltage rise to just 9 V at 150 A - thereby keeping total clamped voltage well below typical 3.3 V or 5 V IC absolute maximum ratings and preventing latch-up or damage.
Is the QFN-3 package compatible with standard reflow profiles for lead-free assembly?
Yes - ST specifies a peak reflow temperature of 240–245 °C for 60 seconds (max 90 s), with ramp rates ≤3 °C/s pre-peak and ≤6 °C/s cooling. The ECOPACK®-compliant QFN supports RoHS-compliant "no-clean" solder paste and achieves reliable solder joint formation with recommended stencil opening ratios (90% for leads, 50% for thermal pad).
ESDA22P150-1U3M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 3-UDFN Exposed Pad
- Series:
- ESDA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20V (Max)
- Voltage - Breakdown (Min):
- 21V
- Voltage - Clamping (Max) @ Ipp:
- 27.5V
- Current - Peak Pulse (10/1000µs):
- 11A
- Power - Peak Pulse:
- 330W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 3-QFN (2x2)
ESDA22P150-1U3M FAQ
1.How can I place an order for ESDA22P150-1U3M through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDA22P150-1U3M 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 ESDA22P150-1U3M reliable?
The price and inventory of ESDA22P150-1U3M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDA22P150-1U3M is usually 5 days.
3.What payment methods are accepted for ESDA22P150-1U3M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDA22P150-1U3M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDA22P150-1U3M?
ESDA22P150-1U3M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDA22P150-1U3M 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 ESDA22P150-1U3M?
For technical support, including ESDA22P150-1U3M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDA22P150-1U3M requirements.
6.How does Aetrix verify that ESDA22P150-1U3M is sourced from the original manufacturer or authorized distributors?
All ESDA22P150-1U3M 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 ESDA22P150-1U3M meets industry standards.
7.What is the process for return or replacement of ESDA22P150-1U3M?
All ESDA22P150-1U3M units undergo pre-shipment inspection (PSI). If there is an issue with ESDA22P150-1U3M, 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 ESDA22P150-1U3M part is unused and in its original packaging.
Return procedure for ESDA22P150-1U3M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDA22P150-1U3M Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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