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onsemi CM1220-04CP
- Part No.:
- CM1220-04CP
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 5-WFBGA, WLCSP
- Datasheet:
-
CM1220-04CP.pdf
- Description:
- TVS DIODE 9VC 5WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:8,833
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Product details
Overview
CM1220-04CP from onsemi is a 4-channel ESD protection array in a 5-bump WLCSP (0.96 mm × 1.33 mm), designed for high-speed I/O, LCD, and camera data lines in mobile handsets. It delivers ±15 kV IEC 61000-4-2 contact discharge protection, ±30 kV HBM ESD immunity, 14 pF typical channel capacitance, and 6.0 V diode standoff voltage.
For engineers reviewing the CM1220-04CP datasheet, pinout, applications, or equivalent options, this device is selected for low-capacitance, high-voltage ESD clamping in space-constrained portable electronics with strict signal integrity requirements.
Technical Context
The CM1220-04CP integrates four avalanche-type ESD diodes in a monolithic Chip Scale Package, each configured as a bidirectional clamp between I/O and GND. Its low dynamic resistance (2.3 Ω positive / 0.9 Ω negative) ensures rapid energy dissipation during ESD transients.
OptiGuard coating enhances solder-joint reliability during reflow assembly, while the WLCSP-5 footprint minimizes parasitic inductance-critical for preserving high-frequency signal fidelity up to 1 GHz, as confirmed by insertion loss characterization in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent ESD protection channels, enabling discrete line-level protection without shared path compromises |
| ESD Rating (IEC 61000-4-2) | ±15 kV contact discharge-exceeds Level 4 compliance, suitable for handheld device touch/signal interfaces |
| ESD Rating (HBM) | ±30 kV-supports robust handling during PCB assembly and end-user operation |
| Diode Capacitance | 14 pF typical at 2.5 V reverse bias-low enough to avoid signal degradation on 100+ Mbps data lines (e.g., MIPI D-PHY) |
| Standoff Voltage | 6.0 V-ensures no conduction during normal 3.3 V or 5 V I/O operation |
| Clamp Voltage (Positive) | 6.8 V max at 10 mA-limits transient overvoltage to safe levels for downstream IC inputs |
| Package | WLCSP-5 (0.96 mm × 1.33 mm, 0.5 mm pitch)-enables direct placement adjacent to connectors or display flex cables |
Pinout & Package
CM1220-04CP uses a 5-bump Wafer-Level Chip Scale Package (WLCSP-5, Case 567AY), with solder bumps arranged in a 3×2 grid (A1, A3, B2, C1, C3), where B2 is dedicated GND and all others are I/O channels.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | ESD1 | First protected I/O channel-bidirectional ESD clamp to GND |
| A3 | ESD2 | Second protected I/O channel-electrically isolated from ESD1 |
| B2 | GND | Common ground reference for all four ESD diodes-must be low-inductance connection to system GND plane |
| C1 | ESD3 | Third protected I/O channel-supports independent routing for parallel data lanes |
| C3 | ESD4 | Fourth protected I/O channel-completes full 4-line protection set for interface buses like camera CSI-2 |
Key Features
| Feature | Design Value |
|---|---|
| OptiGuard coating | Enhanced intermetallic formation control during Pb-free reflow, reducing voiding risk and improving long-term mechanical reliability of solder joints |
| Low 14 pF capacitance | Preserves rise/fall times on high-speed digital signals (e.g., 400 Mbps LVDS or MIPI), minimizing bit error rate in camera and display links |
| ±30 kV HBM rating | Eliminates need for secondary ESD handling controls during SMT assembly and board test |
| WLCSP-5 footprint | Reduces PCB real estate by >70% vs. SOIC-8 alternatives-critical for thin mobile form factors |
| Pb-free & RoHS compliant | Meets global environmental regulations without requiring exemption waivers or special procurement tracking |
Applications
| Mobile Handset LCD Interface | Smartphone Camera Data Lines |
|---|---|
Use Scenario: Protecting RGB or LVDS video data lines between application processor and LCD panel in ultra-thin smartphones. IC Role / Device Role / Timing Role: ESD transient suppressor placed directly at LCD flex connector to prevent latch-up or gate oxide damage in display driver ICs. Use Value: 14 pF capacitance avoids skew between differential pairs; ±15 kV IEC rating withstands pocket discharge events during daily use. | Use Scenario: Shielding MIPI CSI-2 data lanes (D0P/D0N, D1P/D1N) connecting image sensor to SoC in dual-camera modules. IC Role / Device Role / Timing Role: Per-lane bidirectional clamping device ensuring signal integrity across 1–2 Gbps serial links while meeting IEC 61000-4-2 Level 4. Use Value: Four independent channels match standard 2-lane CSI-2 configuration; low dynamic resistance limits voltage overshoot to <7 V during 30 kV HBM strikes. |
| Keypad/Button ESD Protection | Notebook Computer I/O Ports |
Use Scenario: Guarding mechanical keypad scan lines and capacitive touch button inputs against user-hand ESD in ruggedized handheld PCs. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) clamp that remains transparent during DC bias but activates within <1 ns of ESD onset. Use Value: 0.1 µA max leakage at +3.3 V prevents false keypress detection; ±30 kV HBM rating covers worst-case assembly handling. | Use Scenario: Safeguarding USB 2.0 D+/D− and HDMI hot-plug detect lines on ultrabook docking connectors. IC Role / Device Role / Timing Role: High-speed ESD buffer placed immediately upstream of port controller IC to absorb connector-insertion transients. Use Value: Compact WLCSP-5 allows placement within 2 mm of connector edge; 6.0 V standoff avoids interference with 3.3 V logic thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DRYR | 4-channel, 12 pF typical capacitance, ±12 kV IEC 61000-4-2, SOT-5X3 package (1.45 mm × 1.2 mm) | Larger footprint and lower ESD rating limit use in premium mobile designs requiring Level 4 compliance | Select when lower capacitance is prioritized over maximum ESD margin and board space is less constrained |
| ESD5V3U2U-2/TR | 4-channel, 15 pF typical capacitance, ±15 kV IEC 61000-4-2, X2DFN-0.65 package (0.95 mm × 1.35 mm) | Near-identical footprint and ESD rating, but lacks OptiGuard coating and has higher leakage (≤5 µA) | Choose for cost-sensitive consumer devices where solder-joint reliability under thermal cycling is secondary to unit cost |
Compared with TPD4E001DRYR and ESD5V3U2U-2/TR, the CM1220-04CP provides superior ESD margin (±30 kV HBM), proven assembly reliability via OptiGuard, and tighter leakage control-making it preferred for flagship mobile platforms where field failure rates must remain below 10 ppm.
Availability
CM1220-04CP is available at Aetrix Electronics and suitable for mobile handset LCD interfaces, smartphone camera modules, keypad/button circuits, notebook computer I/O ports, and handheld PC designs requiring stable component supply and guaranteed long-term sourcing.
Supply support for CM1220-04CP 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and ESD protection solutions for automotive, industrial, and portable electronics markets.
The CM1220-04CP belongs to onsemi's OptiGuard-enabled ESD protection portfolio, engineered specifically for high-density, high-reliability mobile interface protection where minimal capacitance, maximum ESD immunity, and assembly robustness are co-primary design constraints.
FAQ
What is the operating temperature range for the CM1220-04CP?
The CM1220-04CP is rated for operation from −40 °C to +85 °C, matching the extended ambient requirements of mobile consumer electronics. This range is validated per Table 3 of the official datasheet and supports reliable performance in both cold storage environments and thermally stressed handheld usage scenarios. The CM1220-04CP maintains its ±15 kV IEC 61000-4-2 rating across this full temperature span.
Does the CM1220-04CP require external biasing or control signals?
No, the CM1220-04CP operates passively with no external bias, power, or control connections required. Its avalanche diodes function automatically during ESD events, clamping voltage only when transient thresholds are exceeded. All five bumps serve strictly as signal (A1, A3, C1, C3) or ground (B2) terminals-no enable pins, VCC, or configuration logic exist. The CM1220-04CP is fully functional upon soldering.
How does the OptiGuard coating on the CM1220-04CP improve manufacturing yield?
OptiGuard modifies the surface metallurgy of the CM1220-04CP's solder bumps to promote uniform intermetallic compound (IMC) growth during Pb-free reflow, reducing void formation and enhancing coplanarity retention. This directly improves first-pass SMT yield for fine-pitch WLCSP packages, especially on thermally asymmetric PCBs. The CM1220-04CP's OptiGuard process is qualified per JEDEC J-STD-020 moisture sensitivity level 1.
Can the CM1220-04CP protect both analog and digital signal lines?
Yes-the CM1220-04CP protects any low-voltage signal line operating ≤6.0 V, including analog camera sensor outputs (e.g., analog RGB), digital I²C control lines, and high-speed digital data lanes (e.g., MIPI D-PHY). Its 14 pF capacitance and sub-1 ns response time ensure compatibility with both domains. Signal integrity validation for the CM1220-04CP includes insertion loss testing up to 1 GHz, confirming suitability for mixed-signal routing.
What is the maximum recommended PCB pad size for the CM1220-04CP?
The manufacturer specifies a non-solder-mask-defined round PCB pad of 0.240 mm diameter for the CM1220-04CP, with a 0.290 mm solder mask opening and 0.300 mm laser-cut stencil aperture. Deviating beyond ±50 µm edge-to-corner ball tolerance risks misalignment or bridging. These dimensions are optimized for the 0.5 mm bump pitch and are documented in Table 5 of the CM1220 datasheet to ensure repeatable reflow joint quality for the CM1220-04CP.
CM1220-04CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 5-WFBGA, WLCSP
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 9V
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-WLCSP (0.96x1.33)
CM1220-04CP FAQ
1.How can I place an order for CM1220-04CP through Aetrix?
Please submit a Request for Quotation (RFQ) for CM1220-04CP 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 CM1220-04CP reliable?
The price and inventory of CM1220-04CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CM1220-04CP is usually 5 days.
3.What payment methods are accepted for CM1220-04CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CM1220-04CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CM1220-04CP?
CM1220-04CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CM1220-04CP 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 CM1220-04CP?
For technical support, including CM1220-04CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CM1220-04CP requirements.
6.How does Aetrix verify that CM1220-04CP is sourced from the original manufacturer or authorized distributors?
All CM1220-04CP 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 CM1220-04CP meets industry standards.
7.What is the process for return or replacement of CM1220-04CP?
All CM1220-04CP units undergo pre-shipment inspection (PSI). If there is an issue with CM1220-04CP, 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 CM1220-04CP part is unused and in its original packaging.
Return procedure for CM1220-04CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CM1220-04CP Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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