Nexperia USA Inc. IP4302CX2/A,315
- Part No.:
- IP4302CX2/A,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- 2-XFBGA, WLCSP
- Datasheet:
-
IP4302CX2/A,315.pdf
- Description:
- TVS DIODE 2WLCSP
- Quantity:
- Payment:

- Shipping:

Inventory:4,245
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Product details
Overview
IP4302CX2/A from Nexperia is a bidirectional ESD protection diode designed for single-line signal integrity in space-constrained portable electronics. It delivers ±15 kV IEC 61000-4-2 contact discharge protection, features 10 pF capacitance at 0 V, and uses a 0.52 mm × 0.7 mm Wafer-Level Chip-Scale Package (WLCSP2) with 0.40 mm height - enabling SIM card interface and mobile handset data line protection.
For engineers reviewing the IP4302CX2/A datasheet, IP4302CX2/A pinout, IP4302CX2/A application, or IP4302CX2/A equivalent, this device is selected for ultra-low-profile ESD hardening of bidirectional analog/digital lines where leakage (<20 nA at ±5 V), breakdown symmetry (±14.0–16.5 V), and PCB layout efficiency are critical.
Technical Context
The IP4302CX2/A integrates two back-to-back silicon diodes monolithically in a symmetrical WLCSP2 package, eliminating polarity marking and supporting bidirectional transient clamping on one signal path. Its breakdown voltage is tightly specified at ±14.0–16.5 V (1 mA), and it sustains ≥1000 IEC 61000-4-2 contact discharges without degradation.
Designed for placement directly at I/O connectors, it operates across –35 °C to +85 °C ambient and supports Pb-free reflow up to 260 °C peak. The device exhibits <20 nA reverse leakage at ±5 V and maintains ≤10 pF capacitance at 1 MHz/0 V - preserving high-speed signal fidelity in USB, SIM, and audio interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±15 kV contact discharge (IEC 61000-4-2); exceeds Level 4 (±8 kV) by >87% - ensures robust field reliability in handheld devices |
| Breakdown Voltage | ±14.0–16.5 V at 1 mA - symmetric clamping threshold prevents false triggering on bidirectional signals |
| Diode Capacitance | ≤10 pF at 1 MHz / 0 V - minimizes signal distortion on high-frequency lines like SIM CLK/DATA |
| Reverse Leakage | ≤20 nA at ±5 V - preserves low-power standby current in battery-operated systems |
| Package Dimensions | 0.52 mm × 0.7 mm × 0.40 mm WLCSP2 - enables placement within 1 mm of connector pads for optimal ESD path inlays |
| Ambient Temp Range | –35 °C to +85 °C - validated for consumer-grade portable electronics operating environments |
Pinout & Package
IP4302CX2/A uses a 2-bump Wafer-Level Chip-Scale Package (WLCSP2) with electrically and mechanically symmetrical construction - no polarity marking required. The package has A1-A1 bump configuration and measures 0.52 mm × 0.7 mm with 0.40 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Forms one half of the back-to-back pair; connects to protected line when referenced to ground |
| 2 | Cathode (Diode 2) | Completes bidirectional clamping path; enables symmetric conduction during positive/negative ESD events |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Clamping | Single-device protection for AC-coupled or dual-polarity signal lines - eliminates need for discrete diode pairs |
| Ultra-Low Profile | 0.40 mm max height - fits beneath mechanical shields and enables ultra-thin smartphone bezel designs |
| Low Capacitance | ≤10 pF - maintains signal integrity on 10+ Mbps data lines (e.g., SIM I/O, headset mic/audio) |
| Pb-Free & Halogen-Free | RoHS-compliant, Dark Green certified - meets global environmental compliance without performance trade-offs |
Applications
| Cellular Handset Data Lines | SIM Card Interface Protection |
|---|---|
|
Use Scenario: Protecting UART, I²C, or GPIO lines between baseband processor and peripheral ICs in smartphones. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed at board edge before ESD-sensitive SoC pins. Use Value: Prevents latch-up or gate oxide damage from human-body-model discharges during handling or use - validated for ≥1000 ±15 kV pulses. |
Use Scenario: Shielding SIM card slot contacts (CLK, I/O, RST) from insertion/removal ESD events. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp ensuring <10 pF loading on 1–5 MHz clock/data signals. Use Value: Maintains reliable SIM detection and communication without signal rise-time degradation or false resets. |
| Wireless Headset Audio Paths | USB 2.0 D+/D− Lines |
|
Use Scenario: Guarding analog microphone and stereo audio output traces in Bluetooth earbuds and headsets. IC Role / Device Role / Timing Role: Symmetric clamping element preserving DC bias and AC signal swing on audio paths. Use Value: Eliminates pop/click artifacts caused by ESD-induced transients while adding <0.1 dB gain error. |
Use Scenario: Hardening USB 2.0 differential data lines against ESD in portable accessories and OTG adapters. IC Role / Device Role / Timing Role: Line-specific protector with matched capacitance on D+ and D− to preserve differential impedance. Use Value: Enables full-speed (480 Mbps) operation without eye-diagram closure - verified per USB-IF ESD test plan. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T5G (ON Semiconductor) | Lower breakdown (±3.3 V), higher capacitance (30 pF), SOD-523 package (1.2 × 0.8 mm) | Better suited for 3.3 V logic rails but degrades high-speed signal integrity | Select only if system operates below 5 V and speed <10 Mbps |
| TPD2E001DRYR (Texas Instruments) | Two-channel array (dual-line), 12 pF, X2SON-6 package (1.0 × 1.0 mm) | Requires more PCB area; optimized for multi-line protection rather than single-line miniaturization | Choose when protecting adjacent signal pairs (e.g., USB D+/D−) with shared ground |
Compared with ESD5Z3.3T5G and TPD2E001DRYR, the IP4302CX2/A uniquely balances ultra-miniaturization (0.52 × 0.7 mm), ±15 kV robustness, and 10 pF capacitance - making it the only option qualified for single-line ESD hardening in sub-8 mm SIM card slots and thin-bezel display flex interfaces.
Availability
IP4302CX2/A is available at Aetrix Electronics and suitable for cellular handsets, SIM card modules, wireless audio accessories, and USB peripheral designs requiring stable component supply and long-term lifecycle support.
Supply support for IP4302CX2/A 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
Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The IP4302CX2/A belongs to Nexperia's ESD protection portfolio, engineered specifically for miniaturized portable electronics where board space, signal integrity, and IEC-level ESD immunity are co-constrained design priorities.
FAQ
Is IP4302CX2/A suitable for automotive applications?
No. The IP4302CX2/A is not automotive-qualified and has not been tested to AEC-Q200 or ISO 10605 standards. It is rated for consumer-grade ambient temperature (–35 °C to +85 °C) and intended for cellular handsets, wearables, and portable electronics - not under-hood or safety-critical vehicle systems.
What is the maximum recommended PCB trace length between IP4302CX2/A and the protected connector?
Nexperia recommends placing the device within 1 mm of the I/O connector pad. Longer traces increase inductance, reducing clamping effectiveness during fast-rising ESD transients (e.g., 15 kV contact discharge with <1 ns rise time). Ground return path must be direct and low-inductance via dedicated vias.
Does IP4302CX2/A require external biasing or series resistance?
No. The device operates passively as a shunt protector and requires no external bias, pull-up/down resistors, or current-limiting components. Its symmetrical back-to-back diode structure clamps both polarities automatically when transient voltage exceeds ±14 V - compatible with unpowered or hot-plug scenarios.
Can IP4302CX2/A be used for surge or lightning protection?
No. It is rated exclusively for ESD transients per IEC 61000-4-2 (±15 kV contact, ±15 kV air) and MIL-STD-883D HBM (±4 kV). It lacks energy-handling capability for longer-duration surges (IEC 61000-4-5) or lightning-induced spikes - use dedicated TVS arrays or GDTs for those applications.
IP4302CX2/A,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- 2-XFBGA, WLCSP
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- 14V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 10pF @ 1MHz
- Operating Temperature:
- -35°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-WLCSP (0.52x0.70)
IP4302CX2/A,315 FAQ
1.How can I place an order for IP4302CX2/A,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for IP4302CX2/A,315 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 IP4302CX2/A,315 reliable?
The price and inventory of IP4302CX2/A,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IP4302CX2/A,315 is usually 5 days.
3.What payment methods are accepted for IP4302CX2/A,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IP4302CX2/A,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IP4302CX2/A,315?
IP4302CX2/A,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IP4302CX2/A,315 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 IP4302CX2/A,315?
For technical support, including IP4302CX2/A,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IP4302CX2/A,315 requirements.
6.How does Aetrix verify that IP4302CX2/A,315 is sourced from the original manufacturer or authorized distributors?
All IP4302CX2/A,315 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 IP4302CX2/A,315 meets industry standards.
7.What is the process for return or replacement of IP4302CX2/A,315?
All IP4302CX2/A,315 units undergo pre-shipment inspection (PSI). If there is an issue with IP4302CX2/A,315, 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 IP4302CX2/A,315 part is unused and in its original packaging.
Return procedure for IP4302CX2/A,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IP4302CX2/A,315 Tags

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ESD9B5.0ST5G
onsemi

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DESD3V3E1BL-7B
Diodes Incorporated

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ESD5Z3.3T1G
onsemi

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D5V0H1B2LP-7B
Diodes Incorporated

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D5V0P1B2LP-7B
Diodes Incorporated

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DESD5V0U1BA-7
Diodes Incorporated

-
ESD5Z5.0T1G
onsemi

-
DESD5V0U1BB-7
Diodes Incorporated

-
D12V0L1B2LP-7B
Diodes Incorporated

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PESD2V0Y1BSFYL
Nexperia USA Inc.

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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage

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D5V0L1B2WS-7
Diodes Incorporated
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