onsemi NP2300SAMCT3G
- Part No.:
- NP2300SAMCT3G
- Manufacturer:
- onsemi
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
NP2300SAMCT3G.pdf
- Description:
- THYRISTOR 190V 150A DO-214AA
- Quantity:
- Payment:

- Shipping:

Inventory:6,820
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Product details
Overview
NP2300SAMCT3G from onsemi is a bidirectional ultra-low-capacitance thyristor surge protection device (TSPD) designed for telecom line protection in high-speed xDSL and T1/E1 interfaces. It features ±190 V repetitive peak off-state voltage (VDRM), ±260 V breakover voltage (V(BO)), 23 pF nominal off-state capacitance at 1 MHz, 4 V on-state voltage at 2.2 A, and 150 mA holding current - enabling transparent operation and fast crowbar clamping without signal distortion.
For engineers reviewing the NP2300SAMCT3G datasheet, pinout, applications, or equivalent options, this device is selected for telecom surge compliance with GR-1089-CORE, ITU-T K.20/K.21/K.45, and IEC 61000-4-5 - requiring precise VDRM/V(BO) margining, low Co for broadband integrity, and robust 150 A (10×1000 µs) non-repetitive surge capability.
Technical Context
The NP2300SAMCT3G operates as a bidirectional crowbar-type protector: it remains high-impedance (open-circuit) during normal operation (IDRM ≤ 5 µA at VDRM), then switches to low-impedance (short-circuit) when transient voltage exceeds V(BO) = ±260 V, shunting surge current to ground. Its ultra-low 23 pF off-state capacitance ensures minimal insertion loss and phase distortion in >10 MHz DSL/T1 data paths.
Thermal design relies on its SMB (DO-214AA) package with 90 °C/W junction-to-ambient resistance; electrical robustness includes 500 A/µs di/dt rating and guaranteed operation from −40 °C to +150 °C junction temperature - supporting fail-safe protection in central office and CPE equipment exposed to lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | ±190 V - maximum continuous AC/DC line voltage the device blocks without triggering; must exceed system peak operating voltage (e.g., 150 Vrms ring voltage = 212 Vpeak). |
| V(BO) | ±260 V - guaranteed maximum clamping voltage seen by protected circuit; sets upper limit of transient overvoltage exposure. |
| Co | 23 pF at 1 MHz, 2 Vdc - enables <0.1 dB insertion loss in ADSL2+ (up to 2.2 MHz) and preserves signal integrity in T1 (1.544 MHz) lines. |
| VT | 4 V at 2.2 A pk - low on-state voltage allows high surge current conduction (IPPS7 = 50 A for 10×1000 µs) without thermal runaway in SMB package. |
| IH | 150 mA - minimum current required to sustain conduction; must exceed system fault-hold current to ensure automatic recovery post-surge. |
| IDRM | 5 µA at VDRM - ultra-low leakage ensures no DC loading or bias shift in voice/data hybrid circuits. |
| di/dt | ±500 A/µs - withstands rapid surge rise times typical of lightning-induced transients without false triggering. |
Pinout & Package
NP2300SAMCT3G uses the SMB (DO-214AA, Case 403C) surface-mount package: 2-terminal bidirectional device with symmetrical anode/cathode configuration; no polarity marking required. Dimensions: 4.57 × 3.81 × 2.41 mm (L × W × H), with 2.26 mm standoff height and 5.59 mm body length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bidirectional) | Surge current path terminal | Interchangeable terminals; connects across protected line pair (e.g., Tip-Ring); conducts equally in both directions during overvoltage events. |
| Cathode / Anode (Bidirectional) | Surge current path terminal | Identical function to first terminal; no internal asymmetry - enables placement flexibility in differential line protection layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low off-state capacitance | 23 pF - preserves high-frequency signal fidelity in xDSL/T1 systems up to 2.2 MHz without equalization penalty. |
| Low leakage current | ≤5 µA at ±190 V - eliminates DC path loading in POTS splitter and SLIC interface circuits. |
| Precise bidirectional breakover | ±260 V (guaranteed max) - enables accurate coordination with equipment failure thresholds (e.g., SLIC absolute max rating). |
| High surge current rating | 50 A (10×1000 µs waveform) - meets GR-1089-CORE Level C surge immunity requirements for central office deployment. |
| Pb-free, RoHS-compliant packaging | SMB (DO-214AA) with matte tin lead finish - supports lead-free reflow profiles (J-STD-020) and industrial environmental compliance. |
Applications
| ADSL Central Office Line Card | T1/E1 Data Interface Protection |
|---|---|
|
Use Scenario: Protecting copper line interfaces on DSLAM line cards against lightning-induced surges in outdoor plant environments. IC Role / Device Role / Timing Role: Bidirectional crowbar protector placed across Tip-Ring pairs upstream of SLIC and POTS splitter. Use Value: 23 pF capacitance prevents attenuation of ADSL2+ upstream tones (138–2208 kHz); ±260 V V(BO) coordinates with SLIC 300 V abs max rating. |
Use Scenario: Safeguarding T1 framer and transceiver ICs in enterprise PBX and channel bank equipment connected to telco demarcation points. IC Role / Device Role / Timing Role: Primary surge shunt on balanced 100 Ω T1 receive/transmit pairs before transformer coupling and receiver input. Use Value: 50 A (10×1000 µs) IPPS7 rating satisfies TIA-968-A Level B surge test; ±190 V VDRM exceeds 150 Vrms ring voltage peak (212 V). |
| xDSL Customer Premises Equipment | Broadband Voice Gateway Protection |
|
Use Scenario: Integrated surge protection in residential DSL modems/routers handling simultaneous voice and data on shared copper lines. IC Role / Device Role / Timing Role: Secondary protector downstream of gas tube or GDT, providing low-capacitance clamping for high-speed data paths. Use Value: 4 V VT ensures minimal voltage overshoot during clamping; 150 mA IH guarantees auto-recovery after 100 ms surges without latch-up. |
Use Scenario: Protecting analog telephone interface (FXS/FXO) ports in VoIP gateways against induced surges from adjacent power lines or lightning. IC Role / Device Role / Timing Role: Bidirectional line protector across tip-ring of POTS port, co-located with hybrid transformer. Use Value: ≤5 µA IDRM prevents DC loop current disruption; ±260 V V(BO) stays below 300 V capacitor dielectric rating in voice circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional telecom surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NP2100SAMCT3G | VDRM = ±180 V, V(BO) = ±240 V - 10 V lower blocking/clamping than NP2300SAMCT3G. | Suitable where system peak voltage ≤ 200 V (e.g., lower-voltage CPE designs); less margin vs. 212 V ring voltage peak. | Select when tighter V(BO) coordination is needed with 240 V-rated SLICs or where lower clamping reduces stress on downstream TVS. |
| NP2600SAMCT3G | VDRM = ±220 V, V(BO) = ±300 V - 30 V higher blocking/clamping; same 23 pF Co and 4 V VT. | Required for systems with >200 V peak operating voltage (e.g., legacy T1 with high ringing voltage) or 300 V equipment thresholds. | Choose for enhanced margin in central office line cards facing worst-case GR-1089-CORE Level C surges with elevated baseline voltages. |
Compared with NP2100SAMCT3G and NP2600SAMCT3G, the NP2300SAMCT3G provides optimal VDRM/V(BO) balance for standard 150 Vrms telecom lines (212 Vpeak), delivering 10 V more blocking headroom than NP2100SAMCT3G while avoiding unnecessary clamping voltage overhead versus NP2600SAMCT3G - simplifying coordination with common 260–280 V protection IC thresholds.
Availability
NP2300SAMCT3G is available at Aetrix Electronics and suitable for xDSL line card design, T1/E1 interface protection, and broadband voice gateway development requiring stable component supply, RoHS-compliant sourcing, and full traceability for telecom infrastructure programs.
Supply support for NP2300SAMCT3G 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 management, analog, sensors, and logic solutions for automotive, industrial, and communications markets.
The NPMC Series, including NP2300SAMCT3G, was developed specifically for telecom line protection - delivering ultra-low capacitance, precise bidirectional clamping, and GR-1089-CORE-compliant surge robustness in compact SMB packages.
FAQ
What is the maximum continuous operating voltage the NP2300SAMCT3G can block?
The NP2300SAMCT3G has a repetitive peak off-state voltage (VDRM) of ±190 V - meaning it reliably blocks AC or DC voltages up to 190 V peak in either polarity during normal operation. This rating ensures transparency in telecom circuits with nominal 48 V DC battery feed and 150 Vrms AC ringing (212 Vpeak), provided design margin accounts for tolerance and transients.
How does the NP2300SAMCT3G achieve low signal distortion in high-speed data lines?
The NP2300SAMCT3G achieves low signal distortion through its ultra-low 23 pF off-state capacitance (Co), measured at 1 MHz and 2 Vdc bias. This minimizes insertion loss and phase shift across ADSL2+ (up to 2.2 MHz) and T1 (1.544 MHz) bandwidths, preserving bit error rate performance without requiring additional equalization circuitry in the signal path.
What surge waveform does the NP2300SAMCT3G support at its rated 50 A peak impulse current?
The NP2300SAMCT3G supports a 10×1000 µs double-exponential decay waveform at its 50 A non-repetitive peak impulse current (IPPS7) rating. This matches GR-1089-CORE Level C surge test requirements for central office equipment and ensures reliable clamping under long-duration lightning-induced transients.
Does the NP2300SAMCT3G require external circuitry to reset after a surge event?
No, the NP2300SAMCT3G resets automatically after a surge event. Its 150 mA holding current (IH) ensures the device returns to high-impedance blocking state once line current falls below this threshold - typically within microseconds after surge decay. No external trigger, gate control, or power cycling is needed for recovery.
Is the NP2300SAMCT3G compatible with lead-free reflow soldering processes?
Yes, the NP2300SAMCT3G is Pb-free and RoHS-compliant, packaged in an SMB (DO-214AA) case with matte tin leads. It is qualified for standard lead-free reflow profiles per J-STD-020, with peak temperatures up to 260 °C - making it suitable for automated SMT assembly in telecom infrastructure manufacturing.
NP2300SAMCT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Breakover:
- 260V
- Voltage - Off State:
- 190V
- Voltage - On State:
- 4 V
- Current - Peak Pulse (8/20µs):
- 150 A
- Current - Peak Pulse (10/1000µs):
- 50 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 23pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
NP2300SAMCT3G FAQ
1.How can I place an order for NP2300SAMCT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for NP2300SAMCT3G 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 NP2300SAMCT3G reliable?
The price and inventory of NP2300SAMCT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NP2300SAMCT3G is usually 5 days.
3.What payment methods are accepted for NP2300SAMCT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NP2300SAMCT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NP2300SAMCT3G?
NP2300SAMCT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NP2300SAMCT3G 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 NP2300SAMCT3G?
For technical support, including NP2300SAMCT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NP2300SAMCT3G requirements.
6.How does Aetrix verify that NP2300SAMCT3G is sourced from the original manufacturer or authorized distributors?
All NP2300SAMCT3G 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 NP2300SAMCT3G meets industry standards.
7.What is the process for return or replacement of NP2300SAMCT3G?
All NP2300SAMCT3G units undergo pre-shipment inspection (PSI). If there is an issue with NP2300SAMCT3G, 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 NP2300SAMCT3G part is unused and in its original packaging.
Return procedure for NP2300SAMCT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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