NXP Semiconductors IP4142CX5/LF,135
- Part No.:
- IP4142CX5/LF,135
- Manufacturer:
- NXP Semiconductors
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
IP4142CX5/LF,135.pdf
- Description:
- IC ESD PROTECTION GENERIC 5CSP
- Quantity:
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- Shipping:

Inventory:5,077
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Product details
Overview
IP4142CX5/LF from NXP is a 4-channel ESD protection diode array in a 5-ball CSP package, featuring back-to-back diode configuration with common ground, 16 pF typical line capacitance, <1 µA reverse leakage at 3 V, and IEC 61000-4-2 Level 4 (±8 kV contact) ESD immunity - designed for high-density consumer interface protection including USB, SIM card, and baseband signal lines.
For engineers reviewing the IP4142CX5/LF datasheet, IP4142CX5/LF pinout, IP4142CX5/LF application, or IP4142CX5/LF equivalent, this device delivers ultra-compact ESD suppression for space-constrained mobile and portable electronics where low capacitance, minimal PCB footprint, and robust transient immunity are critical selection criteria.
Technical Context
The IP4142CX5/LF integrates four bidirectional ESD protection diodes sharing a single ground terminal, enabling compact routing of multiple signal lines without individual ground traces. Its back-to-back structure supports AC-coupled and DC-biased interfaces while maintaining symmetrical clamping behavior.
Designed for consumer and computing interfaces, it operates across 0–3.3 V supply rails, exhibits 16 pF typical line capacitance suitable for ≤40 MHz digital signals, and achieves ±8 kV contact/±15 kV air discharge ESD robustness per IEC 61000-4-2 - verified under standard test conditions with no derating required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Number of protected lines | 4 independent signal paths with shared ground terminal |
| Line capacitance (Cline) | 16 pF typical - preserves signal integrity up to ~40 MHz interfaces |
| ESD rating (IEC 61000-4-2) | ±8 kV contact, ±15 kV air - meets Level 4 immunity without external components |
| Reverse leakage current (IR) | <1 µA at VR = 3 V - negligible loading on low-power signal lines |
| Package | 5-ball CSP, 0.91 × 1.28 × 0.65 mm - enables direct placement beneath connectors or ICs |
| Configuration | Bidirectional back-to-back diode per channel - supports AC and DC-coupled signals |
Pinout & Package
IP4142CX5/LF uses a 5-ball chip-scale package (CSP) with ball pitch of 0.5 mm. The package has no exposed pad and is compatible with standard SMT reflow profiles (JEDEC J-STD-020 compliant). Ground connection is provided via Ball B2; signal terminals occupy Balls A1, A2, C1, and C2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Protected signal line 1 | Input/output path for first interface signal (e.g., D+ or SIM CLK) |
| A2 | Protected signal line 2 | Input/output path for second interface signal (e.g., D− or SIM DAT) |
| C1 | Protected signal line 3 | Input/output path for third interface signal (e.g., SIM VCC or keypad line) |
| C2 | Protected signal line 4 | Input/output path for fourth interface signal (e.g., SIM RST or audio MIC) |
| B2 | Ground (GND) | Common cathode/anode reference for all four back-to-back diodes |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection | Four independent channels with symmetric ±8 kV contact discharge clamping |
| Ultra-small footprint | 0.91 × 1.28 mm CSP - reduces board area vs. discrete diode solutions by >70% |
| Low line capacitance | 16 pF typical - avoids signal degradation in USB 1.1, SIM, and keypad interfaces |
| Lead-free and RoHS-compliant | Meets EU Directive 2011/65/EU - suitable for consumer electronics manufacturing |
| Back-to-back diode architecture | Enables use on AC-coupled lines without polarity concerns or biasing networks |
Applications
| USB 1.1 Interface Protection | SIM Card Interface Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of a USB 1.1 transceiver in a smartphone or tablet against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Standalone ESD clamp placed between connector and PHY, operating transparently during normal data transmission. Use Value: Prevents latch-up or damage to the USB PHY while maintaining signal rise/fall times due to 16 pF capacitance and sub-1 µA leakage. |
Use Scenario: Shielding SIM card clock, data, reset, and power lines from electrostatic discharge during card insertion/removal in mobile handsets. IC Role / Device Role / Timing Role: Passive ESD suppressor placed directly at SIM card connector, grounding transients before they reach baseband processor pins. Use Value: Enables reliable SIM operation in high-ESD environments (e.g., dry climates, plastic enclosures) without degrading 1–5 MHz clock/data timing margins. |
| Keypad Interface Protection | Baseband Audio Line Protection |
Use Scenario: Safeguarding mechanical keypad scan lines (row/column) in feature phones or industrial handhelds exposed to repeated finger contact. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on each key line, referenced to common system ground. Use Value: Eliminates false keypresses caused by ESD-induced glitches while preserving DC logic levels and scan cycle timing. |
Use Scenario: Protecting analog microphone bias and differential audio paths in voice-enabled IoT devices subject to handling ESD. IC Role / Device Role / Timing Role: Back-to-back diode clamp on MIC+ and MIC− lines, with shared ground to minimize layout complexity. Use Value: Maintains SNR and THD performance by limiting transient overshoot to <1.5 V without adding series resistance or filtering delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IP4042CX5/LF | Same 5-ball CSP package, 14 pF Cline, identical pinout, but rated for ±8 kV contact only (no air discharge spec stated) | Suitable for lower-risk environments where air discharge immunity is not mandated | Select when 14 pF capacitance is preferred over 16 pF and full IEC air discharge compliance is unnecessary |
| IP4343CX5/LF | Smaller 0.93 × 0.93 mm CSP, 10 pF Cline, 2-channel (not 4-channel), same back-to-back topology | Applicable only where exactly two signal lines require protection in ultra-dense layouts | Choose for dual-line interfaces like USB 2.0 D+/D− where minimal capacitance outweighs channel count needs |
Compared with IP4142CX5/LF, IP4042CX5/LF offers slightly lower capacitance but lacks published air discharge rating, while IP4343CX5/LF reduces size and capacitance at the cost of halving channel count - making IP4142CX5/LF the optimal balance of density, channel count, and full IEC 61000-4-2 compliance.
Availability
IP4142CX5/LF is available at Aetrix Electronics and suitable for USB 1.1 interface protection, SIM card interface protection, and keypad interface protection requiring stable component supply across high-volume consumer electronics production.
Supply support for IP4142CX5/LF 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.
The IP4142CX5/LF belongs to NXP's interface protection portfolio, engineered specifically for space-constrained mobile platforms needing integrated, low-capacitance ESD suppression across multiple baseband signal lines.
FAQ
What is the maximum operating voltage for IP4142CX5/LF?
The IP4142CX5/LF is rated for continuous operation up to 3.3 V DC on protected lines. Its breakdown voltage exceeds 5 V, ensuring safe clamping during ESD events while remaining transparent during normal 3.3 V logic-level signaling. This rating is validated per NXP's characterization data and applies across the full industrial temperature range (−40°C to +85°C).
Does IP4142CX5/LF require external biasing or pull-up resistors?
No, the IP4142CX5/LF operates passively and requires no external biasing, pull-up, or pull-down resistors. Its back-to-back diode structure provides symmetrical clamping for both positive and negative transients without DC path dependency. It is fully functional when placed directly between signal line and ground, as confirmed in NXP's application guidance for SIM and keypad interfaces.
Can IP4142CX5/LF be used for USB 2.0 high-speed (480 Mbps) interfaces?
No, IP4142CX5/LF is not recommended for USB 2.0 high-speed interfaces. Its 16 pF line capacitance exceeds the ≤1.5 pF requirement for 480 Mbps signaling integrity. NXP specifies IP4059CX5/LF (1.0 pF) or IP4359CX4/LF (3 pF) for USB 2.0 HS applications - IP4142CX5/LF is validated only for ≤40 MHz interfaces such as USB 1.1, SIM, and keypad.
What is the thermal resistance (RθJA) of IP4142CX5/LF?
The IP4142CX5/LF has a junction-to-ambient thermal resistance of 290°C/W, measured on a standard 4-layer JEDEC test board (JESD51-7). This value reflects its ultra-thin CSP construction and absence of thermal pad; sustained power dissipation must remain below 100 mW to avoid exceeding 125°C junction temperature under worst-case ambient conditions.
Is IP4142CX5/LF compatible with lead-free reflow soldering processes?
Yes, IP4142CX5/LF is qualified for lead-free reflow soldering per JEDEC J-STD-020 Rev. E, supporting peak temperatures up to 260°C for 30 seconds. Its 5-ball CSP structure uses SAC305-compatible terminations, and NXP confirms full reliability after three reflow cycles - making it suitable for modern RoHS-compliant assembly lines.
IP4142CX5/LF,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- -
- Series:
- -
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Type:
- -
- Unidirectional Channels:
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- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
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- Voltage - Breakdown (Min):
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- Voltage - Clamping (Max) @ Ipp:
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- Current - Peak Pulse (10/1000µs):
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- Power - Peak Pulse:
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- Power Line Protection:
- -
- Applications:
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- Capacitance @ Frequency:
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- Operating Temperature:
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- Qualification:
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- Mounting Type:
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- Supplier Device Package:
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IP4142CX5/LF,135 FAQ
1.How can I place an order for IP4142CX5/LF,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for IP4142CX5/LF,135 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 IP4142CX5/LF,135 reliable?
The price and inventory of IP4142CX5/LF,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IP4142CX5/LF,135 is usually 5 days.
3.What payment methods are accepted for IP4142CX5/LF,135?
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IP4142CX5/LF,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IP4142CX5/LF,135 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 IP4142CX5/LF,135?
For technical support, including IP4142CX5/LF,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IP4142CX5/LF,135 requirements.
6.How does Aetrix verify that IP4142CX5/LF,135 is sourced from the original manufacturer or authorized distributors?
All IP4142CX5/LF,135 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 IP4142CX5/LF,135 meets industry standards.
7.What is the process for return or replacement of IP4142CX5/LF,135?
All IP4142CX5/LF,135 units undergo pre-shipment inspection (PSI). If there is an issue with IP4142CX5/LF,135, 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 IP4142CX5/LF,135 part is unused and in its original packaging.
Return procedure for IP4142CX5/LF,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IP4142CX5/LF,135 Tags

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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ESD5Z5.0T1G
onsemi

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Diodes Incorporated

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D12V0L1B2LP-7B
Diodes Incorporated

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Nexperia USA Inc.

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Toshiba Semiconductor and Storage

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Diodes Incorporated
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