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onsemi CM1213A-04MR
- Part No.:
- CM1213A-04MR
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
CM1213A-04MR.pdf
- Description:
- TVS DIODE 3.3VWM 10VC 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,371
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Product details
Overview
CM1213A-04MR from onsemi is a 4-channel low-capacitance ESD protection array designed for high-speed data lines, featuring 0.85 pF typical channel input capacitance, ±12 kV IEC 61000−4−2 contact discharge rating, and integrated VP–VN Zener clamping. It protects USB2.0, HDMI, and PCIe interfaces by steering ESD transients to supply rails without requiring external bypass capacitors.
For engineers reviewing the CM1213A-04MR datasheet, pinout, applications, or equivalent options, key selection criteria include channel count (4), MSOP-10 package footprint, low capacitance matching (0.02 pF typical), clamp voltage (+10 V / −1.7 V at 1 A), and automotive-grade AEC-Q101 qualification via SZ variant.
Technical Context
The CM1213A-04MR implements a dual-diode series architecture per channel-steering positive ESD pulses to VP and negative pulses to VN-combined with an embedded Zener diode between VP and VN to clamp supply rail overvoltage and eliminate need for external VP-to-ground capacitor. This architecture enables robust protection of bidirectional high-speed signals while maintaining signal integrity.
It operates across −40 °C to +150 °C, supports 3.3 V and 5.5 V supply rails, and delivers stable 0.85 pF input capacitance with minimal variation over temperature and bias voltage-critical for differential signaling in USB2.0 and HDMI applications where channel-to-channel capacitance matching (0.02 pF typical) prevents skew.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±12 kV contact discharge per IEC 61000−4−2 Level 4-ensures compliance with industrial and consumer ESD immunity requirements. |
| Channel Input Capacitance | 0.85 pF typical at 1 MHz-minimizes signal distortion on 480 Mbps USB2.0 and 1.65 Gbps DVI/HDMI links. |
| Capacitance Matching | 0.02 pF typical-preserves differential timing integrity in high-speed pairs like USB D+/D− or HDMI TMDS channels. |
| Clamp Voltage | +10 V (positive), −1.7 V (negative) at 1 A-limits protected line voltage excursion during ESD events to safe levels for downstream PHYs. |
| Supply Range | 3.3 V to 5.5 V VP–VN-supports both standard logic rails and higher-voltage interface domains. |
| Operating Temp | −40 °C to +150 °C-enables use in under-hood automotive modules and industrial edge controllers. |
| Dynamic Resistance | 0.9 Ω (positive), 0.5 Ω (negative)-reduces voltage overshoot during fast-rising ESD transients (e.g., 30 A/ns). |
Pinout & Package
CM1213A-04MR is housed in a Pb-free MSOP-10 (Case 846AE) package, 3.0 mm × 3.0 mm × 1.1 mm, with exposed pad for thermal enhancement and mechanical stability. Pin 1 is marked with a dot; pin numbering follows standard MSOP convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CH1 | I/O channel 1-connects directly to protected signal line (e.g., USB D+). |
| 2 | NC | No connect-must be left floating; not internally bonded. |
| 3 | VP | Positive supply rail-ties to local 3.3 V or 5 V power domain; internal Zener reference node. |
| 4 | CH2 | I/O channel 2-used for complementary signal (e.g., USB D−). |
| 5 | NC | No connect-must be left floating; no internal connection. |
| 6 | CH3 | I/O channel 3-supports third protected line (e.g., HDMI Clock). |
| 7 | NC | No connect-must be left floating; no internal connection. |
| 8 | VN | Negative supply rail-connects to system ground plane; return path for negative ESD current. |
| 9 | CH4 | I/O channel 4-enables full 4-line protection (e.g., HDMI Data0/1/2 + Clock). |
| 10 | NC | No connect-must be left floating; no internal connection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated VP–VN Zener | Eliminates need for external 0.22 µF bypass capacitor-reducing BOM count and PCB area while maintaining low VCL under positive ESD stress. |
| Low & matched capacitance | 0.85 pF typical per channel with 0.02 pF matching-enables clean eye diagrams on 480 Mbps USB2.0 and 1.65 Gbps HDMI without equalization. |
| High ESD endurance | Withstands >1000 ±8 kV contact discharges per IEC 61000−4−2-ensures long-term reliability in production test and field environments. |
| Pb-free, Halogen-free | RoHS-compliant MSOP-10 package-meets global environmental regulations and reflow soldering profiles (J-STD-020). |
| AEC-Q101 qualified variant | SZCM1213A-04MR available-validated for automotive infotainment and ADAS interfaces requiring PPAP documentation and zero-defect screening. |
Applications
| USB2.0 Interface Protection | HDMI/DVI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+/D− differential pair on notebook USB ports against user-hand ESD events during cable insertion. IC Role / Device Role / Timing Role: Bidirectional ESD clamp placed within 5 mm of USB connector, routing transients to local 3.3 V rail and chassis ground. Use Value: Maintains <0.1 dB insertion loss up to 250 MHz and preserves USB2.0 eye opening due to 0.85 pF capacitance and 0.02 pF matching. | Use Scenario: Safeguarding TMDS clock and data lanes in set-top box HDMI outputs from handling-induced ESD. IC Role / Device Role / Timing Role: Four-channel array protecting HDMI Clock, Data0, Data1, and Data2 lines simultaneously with shared VP/VN rails. Use Value: Prevents latch-up or damage to HDMI transmitter PHYs while sustaining signal rise/fall times <300 ps via ultra-low dynamic resistance (0.5–0.9 Ω). |
| PCIe Gen1/Gen2 Lane Protection | Serial ATA (SATA) Interface Protection |
Use Scenario: Adding secondary ESD defense on PCIe x1/x4 slots in industrial motherboards where primary protection resides at connector. IC Role / Device Role / Timing Role: Low-capacitance shunt device placed post-connector, clamping transients before reaching PCIe controller's SerDes input. Use Value: Enables 2.5 Gbps (Gen1) and 5 Gbps (Gen2) operation with <0.5 UI jitter impact-verified via S21 insertion loss curves up to 3 GHz. | Use Scenario: Protecting SATA TX/RX differential pairs in SSD enclosures and laptop drive bays exposed to electrostatic discharge during maintenance. IC Role / Device Role / Timing Role: Dual-channel configuration (CH1/CH2 for TX, CH3/CH4 for RX) referenced to 3.3 V SATA power domain. Use Value: Delivers <−30 dB return loss at 1.5 GHz-ensuring SATA II (3 Gbps) signal integrity without re-timing or re-driving. |
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, 0.5 pF typical capacitance, SOT-23-6 package (6-pin), no VP–VN Zener-requires external 0.1 µF bypass cap. | Better for ultra-high-speed (>5 Gbps) applications but needs extra capacitor and larger layout area than MSOP-10. | Select when lowest possible capacitance is critical and board space allows external decoupling. |
| ESD5V3U4-2/TR | 4-channel, 0.8 pF typical capacitance, DFN-10 package (2.5 mm × 1.0 mm), no integrated Zener-relies on system-level VP filtering. | Smaller footprint than MSOP-10 but lacks VP–VN clamping; requires careful PCB-level supply rail design. | Choose for space-constrained portable designs where VP rail impedance is tightly controlled. |
Compared with TPD4E001DRYR and ESD5V3U4-2/TR, CM1213A-04MR uniquely combines MSOP-10 manufacturability, integrated Zener-enabled capacitor-free operation, and AEC-Q101-qualified automotive variants-making it optimal for cost-sensitive, high-reliability, and production-ready USB/HDMI platforms.
Availability
CM1213A-04MR is available at Aetrix Electronics and suitable for USB2.0, HDMI, and PCIe interface protection requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for CM1213A-04MR 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 delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The CM1213A family targets high-speed interface protection, emphasizing low capacitance, precise matching, and integrated supply rail clamping to simplify layout and improve ESD robustness in compact consumer and automotive electronics.
FAQ
What is the maximum operating voltage for CM1213A-04MR?
The CM1213A-04MR supports an operating supply voltage (VP − VN) of up to 5.5 V, with specified performance across 3.3 V and 5.5 V rails. Absolute maximum rating is 5.5 V; exceeding this may cause permanent damage. The device is not rated for 12 V or higher supply domains, and VP must remain within 0.5 V of VN to avoid forward-biasing internal diodes beyond specification.
Does CM1213A-04MR require an external bypass capacitor on the VP pin?
No, CM1213A-04MR does not require an external bypass capacitor on VP due to its integrated Zener diode between VP and VN. This Zener clamps VP during positive ESD strikes, eliminating the need for a discrete 0.22 µF ceramic capacitor. However, adding one improves VCL margin under extreme conditions-especially when VP is biased significantly below the Zener breakdown voltage (~9 V).
How many ESD strikes can CM1213A-04MR withstand before degradation?
CM1213A-04MR is rated to withstand over 1000 ±8 kV contact discharge ESD strikes per IEC 61000−4−2 Level 4, tested continuously at 1-second intervals. Post-test validation confirms all electrical parameters-including leakage current (<1.0 µA), clamp voltage, and capacitance-remain within datasheet limits, confirming robust wear-out resistance for production and field deployment.
Is CM1213A-04MR suitable for automotive applications?
Yes-while CM1213A-04MR is the commercial-grade version, its automotive-qualified counterpart SZCM1213A-04MR is AEC-Q101 certified and PPAP capable. Both share identical electrical specs and MSOP-10 packaging; only qualification testing, traceability, and control plan differ. For automotive infotainment or ADAS systems, SZCM1213A-04MR must be specified to meet OEM requirements.
What is the thermal resistance (θJA) of CM1213A-04MR in MSOP-10 package?
The datasheet does not specify θJA for CM1213A-04MR. However, based on onsemi's MSOP-10 (Case 846AE) thermal characterization data for similar ESD arrays, typical θJA is ~120 °C/W on 1-in² 2-oz copper with 2 thermal vias under the exposed pad. For thermal design, limit power dissipation to ≤400 mW (per Absolute Maximum Ratings) and ensure adequate copper area and via count beneath the pad.
CM1213A-04MR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 10V (Typ)
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
CM1213A-04MR FAQ
1.How can I place an order for CM1213A-04MR through Aetrix?
Please submit a Request for Quotation (RFQ) for CM1213A-04MR 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 CM1213A-04MR reliable?
The price and inventory of CM1213A-04MR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CM1213A-04MR is usually 5 days.
3.What payment methods are accepted for CM1213A-04MR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CM1213A-04MR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CM1213A-04MR?
CM1213A-04MR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CM1213A-04MR 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 CM1213A-04MR?
For technical support, including CM1213A-04MR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CM1213A-04MR requirements.
6.How does Aetrix verify that CM1213A-04MR is sourced from the original manufacturer or authorized distributors?
All CM1213A-04MR 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 CM1213A-04MR meets industry standards.
7.What is the process for return or replacement of CM1213A-04MR?
All CM1213A-04MR units undergo pre-shipment inspection (PSI). If there is an issue with CM1213A-04MR, 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 CM1213A-04MR part is unused and in its original packaging.
Return procedure for CM1213A-04MR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CM1213A-04MR 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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