onsemi ESD7371P2T5G
- Part No.:
- ESD7371P2T5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
ESD7371P2T5G.pdf
- Description:
- TVS DIODE 5.3VWM SOD923
- Quantity:
- Payment:

- Shipping:

Inventory:44,570
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Product details
Overview
ESD7371P2T5G from onsemi is a unidirectional ultra-low-capacitance ESD protection diode in SOD-923 package, featuring 0.7 pF max junction capacitance at 0 V, 5.3 V stand-off voltage, and clamping voltage of 11–15 V at 1 A IPP - designed for RF signal line protection in antenna, PA, and RF switch paths of wireless handsets.
For engineers reviewing the ESD7371P2T5G datasheet, pinout, applications, or equivalent options, key selection criteria include capacitance linearity over bias voltage, dynamic resistance under TLP stress, IEC61000-4-2 ±8 kV contact/air robustness, and SOD-923 footprint compatibility with high-density RF layouts.
Technical Context
This device operates as a unidirectional clamping diode with cathode-anode polarity, leveraging silicon PN junction behavior to limit transient overvoltage while maintaining sub-0.7 pF capacitance across 0–5 V bias range. Its low dynamic resistance (<1 Ω) ensures minimal voltage overshoot during fast ESD pulses.
The ESD7371P2T5G meets IEC61000-4-2 Level 4 (±8 kV contact, ±15 kV air) and supports 1000+ ESD strikes without degradation. Its CV linearity and <1 nA leakage at 5.3 V VRWM enable stable RF insertion loss performance in antenna front-end designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance (CJ) | 0.43 pF typ @ 0 V, 0.7 pF max - enables minimal RF signal distortion in GHz-band antenna lines |
| Stand-off Voltage (VRWM) | 5.3 V - sets maximum continuous operating voltage before conduction begins |
| Clamping Voltage (VC) | 11–15 V @ 1 A IPP - limits peak transient voltage seen by protected IC during ESD event |
| Breakdown Voltage (VBR) | 7.0 V min @ 1 mA - defines sharp turn-on threshold for reliable clamping onset |
| Leakage Current (IR) | <1 nA @ 5.3 V - prevents DC loading or bias shift in sensitive RF receiver paths |
| Dynamic Resistance (RDYN) | 0.45 Ω typ - reduces voltage overshoot during fast TLP pulses (100 ns) |
| ESD Rating | IEC61000-4-2 Level 4: ±8 kV contact / ±15 kV air - validated for handheld device interface compliance |
Pinout & Package
SOD-923 package (0.80 × 0.60 × 0.37 mm), surface-mount, anode-cathode polarized configuration with molded plastic body and matte tin lead finish. Compatible with reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to system ground or low-impedance return path; carries ESD current during positive transients |
| 2 | Anode | Connected to protected signal line (e.g., antenna feed); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Capacitance linearity over voltage | 0.39–0.7 pF across 0–5 V bias - preserves RF amplitude and phase integrity in tunable front-ends |
| Ultra-low dynamic resistance | 0.45 Ω typical - minimizes clamping voltage rise under high-current ESD pulses |
| AEC-Q101 qualification | Qualified for automotive infotainment and telematics modules requiring extended temperature reliability |
| Pb-free, halogen-free construction | RoHS-compliant with JEDEC-standard SOD-923 footprint - supports green manufacturing and reflow processes |
Applications
| Antenna Line Protection | RF Power Amplifier Output |
|---|---|
Use Scenario: ESD protection on main cellular/Wi-Fi/GNSS antenna feed lines in smartphones and IoT terminals. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between RF switch output and antenna connector. Use Value: 0.43 pF capacitance and linear CV response maintain S11/S22 matching and minimize insertion loss below −0.2 dB up to 3 GHz. |
Use Scenario: Transient suppression at PA output stage prior to antenna switching or filtering. IC Role / Device Role / Timing Role: Standoff-rated shunt element that conducts only during ESD events, preserving PA DC bias and gain stability. Use Value: 5.3 V VRWM allows integration into 5 V PA supply rails without leakage-induced quiescent current drift. |
| NFC Interface Protection | USB 2.0 High-Speed Data Lines |
Use Scenario: ESD safeguard for 13.56 MHz NFC reader/writer coil driver outputs and data pins. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (configured as unidirectional with GND reference) on differential NFC signaling paths. Use Value: Sub-0.7 pF capacitance avoids detuning of resonant LC tank and maintains field strength within ±5% tolerance. |
Use Scenario: I/O line protection for USB 2.0 D+/D− signals in portable accessories and host controllers. IC Role / Device Role / Timing Role: Ground-referenced unidirectional ESD suppressor placed adjacent to USB connector. Use Value: 11–15 V clamping at 1 A IPP prevents damage to USB PHY transceivers while meeting USB-IF ESD immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD7381P2T5G | 0.35 pF typ capacitance, 3.3 V VRWM, same SOD-923 package | Better suited for 3.3 V logic and low-voltage RF interfaces (e.g., Bluetooth LE antennas) | Select when lower stand-off voltage and tighter capacitance spec are required for sub-3 V systems |
| CM1213-04SO | Quad-channel, 0.8 pF per line, SOIC-14 package, 5.5 V VRWM | Supports multi-line protection (e.g., USB D+/D− + VBUS + ID) but occupies larger PCB area | Choose for board-level consolidation of multiple I/O protections where space permits and discrete placement is impractical |
Compared with ESD7371P2T5G, ESD7381P2T5G offers lower capacitance and reduced stand-off for 3.3 V domains, while CM1213-04SO trades ultra-small size for channel count and package footprint - making ESD7371P2T5G optimal for single-line, space-constrained RF paths demanding 5.3 V compatibility and proven linearity.
Availability
ESD7371P2T5G is available at Aetrix Electronics and suitable for RF antenna protection, power amplifier output safeguarding, and NFC interface hardening requiring stable component supply and AEC-Q101-qualified reliability.
Supply support for ESD7371P2T5G 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
onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier focused on energy-efficient electronics, delivering high-performance analog, logic, discrete, and custom devices.
The ESD7371 Series was developed specifically for ultra-low-capacitance ESD protection in RF front-end modules, targeting antenna, PA, and switch applications in mobile and wireless infrastructure where signal integrity and miniaturization are critical.
FAQ
What is the primary circuit role of the ESD7371P2T5G?
The ESD7371P2T5G functions as a unidirectional clamping diode placed between a protected RF signal line (e.g., antenna feed) and ground. During normal operation, it remains non-conductive with <1 nA leakage at 5.3 V VRWM; during ESD events, it rapidly turns on to clamp transient voltages to 11–15 V, diverting current away from sensitive downstream ICs. This role is confirmed in the datasheet's IV characteristics, schematic diagrams, and application notes.
Does the ESD7371P2T5G meet automotive qualification standards?
Yes, the ESD7371P2T5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the datasheet's Features section and Ordering Information table. The "SZ" prefix variant (SZESD7371P2T5G) denotes automotive-grade screening and control, and the device operates across −55 °C to +150 °C junction temperature range - satisfying automotive environmental and reliability requirements.
What is the exact package type and dimensions of the ESD7371P2T5G?
The ESD7371P2T5G uses the SOD-923 package (Case 514AB), measuring 0.80 mm × 0.60 mm × 0.37 mm. This is confirmed in the Ordering Information table and Mechanical Case Outline drawing on page 5 of the datasheet. The package features two terminals: pin 1 (cathode) and pin 2 (anode), with polarity band marking per Style 1 generic diagram.
How does the capacitance of the ESD7371P2T5G behave across bias voltage?
The ESD7371P2T5G exhibits industry-leading capacitance linearity: 0.39 pF at 0 V bias, rising to 0.7 pF max across 0–5 V, as shown in Figure 2 (CV Characteristics) and specified in the Electrical Characteristics table. This flat CV curve minimizes impedance variation in RF paths, directly enabling stable antenna matching and low insertion loss - a key design value cited for wireless handset antenna line use.
What ESD test standards does the ESD7371P2T5G comply with?
The ESD7371P2T5G complies with IEC61000-4-2 Level 4: ±8 kV contact discharge and ±15 kV air discharge, verified for 1000+ strikes. It also meets IEC61000-4-5 surge requirements (3.0 A) and has a 20 kV non-repetitive ESD rating per note 1 in Maximum Ratings. These values are tabulated in the datasheet's Features, Maximum Ratings, and Application Note AND8308/D sections.
ESD7371P2T5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SOD-923
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.3V (Max)
- Voltage - Breakdown (Min):
- 7V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- RF Antenna
- Capacitance @ Frequency:
- 0.43pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
ESD7371P2T5G FAQ
1.How can I place an order for ESD7371P2T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD7371P2T5G 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 ESD7371P2T5G reliable?
The price and inventory of ESD7371P2T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD7371P2T5G is usually 5 days.
3.What payment methods are accepted for ESD7371P2T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD7371P2T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD7371P2T5G?
ESD7371P2T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD7371P2T5G 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 ESD7371P2T5G?
For technical support, including ESD7371P2T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD7371P2T5G requirements.
6.How does Aetrix verify that ESD7371P2T5G is sourced from the original manufacturer or authorized distributors?
All ESD7371P2T5G 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 ESD7371P2T5G meets industry standards.
7.What is the process for return or replacement of ESD7371P2T5G?
All ESD7371P2T5G units undergo pre-shipment inspection (PSI). If there is an issue with ESD7371P2T5G, 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 ESD7371P2T5G part is unused and in its original packaging.
Return procedure for ESD7371P2T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD7371P2T5G Tags

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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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DESD5V0U1BB-7
Diodes Incorporated

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D12V0L1B2LP-7B
Diodes Incorporated

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