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onsemi CM1216-08MR
- Part No.:
- CM1216-08MR
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
CM1216-08MR.pdf
- Description:
- TVS DIODE 3.3V 9V 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,443
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Product details
Overview
CM1216-08MR from onsemi is an 8-channel low-capacitance ESD protection array designed for high-speed data lines, offering ±15 kV IEC 61000-4-2 contact ESD protection per channel, 1.6 pF typical channel input capacitance, and mutual capacitance of 0.13 pF. It is used in HDMI, DVI, and Serial ATA interfaces where minimal signal distortion and robust transient suppression are required.
For engineers reviewing the CM1216-08MR datasheet, pinout, applications, or equivalent options, key selection criteria include channel count (8), I/O-to-GND capacitance matching (0.04 pF typical), clamp voltage (+9.0 V / −1.5 V at 1 A), dynamic resistance (0.6 Ω positive / 0.4 Ω negative), and MSOP-10 package compatibility with high-density PCB layouts.
Technical Context
The CM1216-08MR implements a dual-diode steering architecture per channel-each I/O pin connects to both VP (positive rail) and VN (negative rail) via series diodes-to divert ESD transients to supply rails. It operates within a 3.3 V to 5.5 V supply range and requires a 0.22 µF ceramic bypass capacitor between VP and VN for optimal clamping performance.
Its design targets systems where parasitic inductance must be minimized: layout guidelines specify placement adjacent to connectors and short traces to VP/VN, as even 10 nH of inductance can elevate clamp voltage by 300 V during a 30 A/1 ns ESD pulse. The device is not internally zener-clamped between VP and VN (unlike CM1213), relying instead on external bypassing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Protection Level | ±15 kV per IEC 61000-4-2 contact discharge-ensures compliance with industrial and consumer ESD immunity requirements without external components. |
| Channel Input Capacitance | 1.6 pF typical at 1 MHz-preserves signal integrity on USB2.0, HDMI, and SATA links operating up to 3 Gbps. |
| Mutual Capacitance | 0.13 pF typical-minimizes crosstalk between adjacent channels in tightly spaced high-speed routing. |
| Clamp Voltage (Positive) | +9.0 V at 1 A, 8/20 µs-limits voltage overshoot on protected lines during fast transients, reducing risk of downstream IC damage. |
| Clamp Voltage (Negative) | −1.5 V at 1 A, 8/20 µs-prevents reverse-bias overstress on receivers tied to ground-referenced inputs. |
| Dynamic Resistance | 0.6 Ω (positive), 0.4 Ω (negative)-low impedance path ensures rapid energy dissipation and stable clamping under repetitive ESD events. |
| Supply Voltage Range | 3.3 V to 5.5 V-supports direct integration into 3.3 V and 5 V logic domains without level-shifting circuitry. |
Pinout & Package
CM1216-08MR is housed in a 10-pin MSOP package (Case 846AE), 3 mm × 3 mm footprint, 0.5 mm pitch, with exposed pad for thermal enhancement. Pin 1 is CH1; pins 9 and 10 are CH7 and CH8 respectively; VP (pin 8) and VN (pin 5) require low-inductance connection to respective supply rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH1–CH8 | I/O | Eight bidirectional ESD protection channels-each connects to system signal line and routes transients to VP or VN via internal diode pairs. |
| VN | GND | Negative supply rail terminal-must be connected directly to system ground plane with minimal trace length to reduce inductive voltage rise during negative ESD events. |
| VP | PWR | Positive supply rail terminal-requires 0.22 µF ceramic capacitor placed adjacent to pin 8 to stabilize clamping and suppress rail bounce. |
Key Features
| Feature | Design Value |
|---|---|
| 8-channel ESD protection | Enables single-device protection of full HDMI Type A (19-pin) or DVI-D dual-link interfaces with shared VP/VN rails. |
| 1.6 pF channel capacitance | Meets <2 pF requirement for HDMI 1.4a and SATA III AC-coupled differential pairs without degrading eye diagram margin. |
| 0.04 pF capacitance matching | Ensures balanced differential signaling integrity across CH1–CH8, critical for minimizing common-mode noise in high-speed serial links. |
| 1000+ ESD strike endurance | Supports manufacturing handling, field service, and repeated hot-plug cycles without degradation in clamping performance. |
| Pb-free MSOP-10 package | Complies with RoHS Directive 2011/65/EU and supports lead-free reflow profiles (JEDEC J-STD-020, peak 260°C). |
Applications
| HDMI Interface Protection | DVI Dual-Link Protection |
|---|---|
Use Scenario: Protecting HDMI 1.4a source outputs (TX) in set-top boxes and digital TVs against user-handling ESD during cable insertion. IC Role / Device Role / Timing Role: ESD transient suppressor placed at connector side of TMDS clock and data lanes, before AC coupling capacitors. Use Value: 1.6 pF loading avoids TMDS signal rise/fall time degradation; ±15 kV rating exceeds IEC 61000-4-2 Level 4 requirement for consumer equipment. | Use Scenario: Shielding DVI-D dual-link pixel clock and 24 data channels in LCD monitors and medical imaging displays. IC Role / Device Role / Timing Role: Per-lane ESD clamp on each of 25 signal lines (including clock), sharing common VP/VN rails to minimize component count. Use Value: 0.13 pF mutual capacitance prevents inter-pair crosstalk that could induce jitter or bit errors in 165 MHz pixel clocks. |
| Serial ATA III Port Protection | PCI Express Gen2 Lane Protection |
Use Scenario: Safeguarding SATA III (6 Gbps) host controller ports in desktop PCs and external SSD enclosures against electrostatic discharge during drive hot-swap. IC Role / Device Role / Timing Role: Bidirectional ESD clamp on differential TX/RX pairs, positioned immediately after the SATA connector. Use Value: Low 0.04 pF capacitance matching preserves differential skew budget (<0.2 ps) required for SATA III link training success. | Use Scenario: Protecting PCIe Gen2 (5 GT/s) x1 or x4 edge connectors in industrial embedded computers and GPU-accelerated vision systems. IC Role / Device Role / Timing Role: Channelized ESD suppression on each lane's differential pair, leveraging shared VP/VN to avoid discrete rail clamps per lane. Use Value: 0.6 Ω dynamic resistance ensures sub-100 ps response time-critical for clamping transients faster than PCIe Gen2 bit period (200 ps). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD8S300ARGER | 8-channel, 1.0 pF typical capacitance, ±12 kV IEC 61000-4-2, WSON-16 package (4 mm × 4 mm) | Lower capacitance suits PCIe Gen3/USB3.1, but larger footprint and higher cost per channel | Select when <1.2 pF is mandatory and board area allows 4×4 mm; avoid if MSOP-10 layout is fixed. |
| SP1006-08UTG | 8-channel, 0.65 pF typical capacitance, ±15 kV, SOT-23-8 package (no VP/VN pins-ground-referenced only) | Ground-only topology limits use to single-supply systems; no rail-to-rail clamping capability | Choose only for cost-sensitive, low-speed applications where VP/VN biasing is unavailable or unnecessary. |
Compared with TPD8S300ARGER and SP1006-08UTG, CM1216-08MR offers the optimal balance of ultra-low capacitance (1.6 pF), full rail-to-rail clamping, compact MSOP-10 size, and proven deployment in HDMI/DVI/SATA-making it preferred for space-constrained, dual-supply high-speed interfaces.
Availability
CM1216-08MR is available at Aetrix Electronics and suitable for HDMI interface protection, DVI dual-link shielding, Serial ATA III port hardening, and PCIe Gen2 lane safeguarding requiring stable component supply across production lifecycles.
Supply support for CM1216-08MR 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 power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, medical, and IoT applications.
The CM1216 family belongs to onsemi's transient protection product line, engineered specifically for high-speed digital interfaces where ESD robustness must coexist with sub-2 pF signal loading and minimal crosstalk.
FAQ
What is the maximum operating voltage for CM1216-08MR?
The CM1216-08MR supports an operating supply voltage range of 3.3 V to 5.5 V between VP and VN pins, as specified in Table 4 of the official datasheet. This range ensures compatibility with standard 3.3 V and 5 V logic domains. Exceeding 5.5 V may damage the internal diode structure. The absolute maximum rating for VP–VN is 6 V, but sustained operation above 5.5 V is not recommended. CM1216-08MR must be biased within this window to maintain specified clamp voltage and leakage current performance.
Does CM1216-08MR include internal Zener clamping between VP and VN?
No, CM1216-08MR does not integrate a Zener diode between VP and VN. Unlike the CM1213, it relies entirely on external bypassing-specifically a 0.22 µF ceramic capacitor between VP and VN-to stabilize rail voltage during ESD events. This design choice reduces part count but places layout responsibility on the designer to minimize inductance in the VP/VN loop. CM1216-08MR's clamping action occurs solely through its channel diodes steering current to VP or VN.
Can CM1216-08MR protect differential high-speed signals like HDMI TMDS pairs?
Yes, CM1216-08MR is explicitly validated for HDMI TMDS protection, as confirmed in its Applications section and design notes. Each channel protects one signal line (e.g., TMDS Data0+), with matched 0.04 pF capacitance ensuring balanced loading across differential pairs. Its 1.6 pF typical input capacitance and 0.13 pF mutual capacitance preserve signal integrity up to 3 Gbps. CM1216-08MR must be placed per-lane, with VP and VN shared across all eight channels, and bypassed with a low-ESR 0.22 µF capacitor.
What is the recommended PCB layout practice for CM1216-08MR?
Place CM1216-08MR as close as possible to the connector-ideally within 5 mm-to minimize unprotected trace length. Route I/O traces directly to connector pins with no stubs. Connect VP (pin 8) and VN (pin 5) to their respective supply planes using multiple vias and keep traces under 2 mm. Mount the 0.22 µF ceramic capacitor between VP and VN with trace lengths <1 mm. Avoid routing other signals near the VP/VN loop. These practices prevent inductive voltage overshoot-e.g., 10 nH of inductance can add 300 V to clamp voltage during a 30 A/ns ESD pulse. CM1216-08MR performance depends critically on this layout discipline.
Is CM1216-08MR compliant with RoHS and REACH regulations?
Yes, CM1216-08MR is Pb-free and RoHS compliant, as stated in the "Features" section of the datasheet and confirmed in the ordering information (MR suffix denotes Pb-free MSOP package). It meets EU Directive 2011/65/EU (RoHS 2) and associated substance restrictions under REACH Annex XVII. The device uses matte tin lead finish and halogen-free molding compound. Full compliance documentation-including test reports and declarations-is available from onsemi's quality portal. CM1216-08MR is suitable for export to EU, UK, and other regulated markets requiring full environmental conformance.
CM1216-08MR 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:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 9V (Typ)
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- DVI, HDMI, USB
- Capacitance @ Frequency:
- 1.6pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
CM1216-08MR FAQ
1.How can I place an order for CM1216-08MR through Aetrix?
Please submit a Request for Quotation (RFQ) for CM1216-08MR 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 CM1216-08MR reliable?
The price and inventory of CM1216-08MR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CM1216-08MR is usually 5 days.
3.What payment methods are accepted for CM1216-08MR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CM1216-08MR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CM1216-08MR?
CM1216-08MR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CM1216-08MR 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 CM1216-08MR?
For technical support, including CM1216-08MR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CM1216-08MR requirements.
6.How does Aetrix verify that CM1216-08MR is sourced from the original manufacturer or authorized distributors?
All CM1216-08MR 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 CM1216-08MR meets industry standards.
7.What is the process for return or replacement of CM1216-08MR?
All CM1216-08MR units undergo pre-shipment inspection (PSI). If there is an issue with CM1216-08MR, 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 CM1216-08MR part is unused and in its original packaging.
Return procedure for CM1216-08MR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CM1216-08MR 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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