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onsemi NP2300SBT3G
- Part No.:
- NP2300SBT3G
- Manufacturer:
- onsemi
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
NP2300SBT3G.pdf
- Description:
- THYRISTOR 190V 80A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,428
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Product details
Overview
NP2300SBT3G from onsemi is a bidirectional thyristor surge protector (TSPD) designed for overvoltage protection in telecom line interfaces. It features 190 V peak off-state voltage (VDRM), 260 V breakover voltage (VBO), 4.0 V on-state voltage (VT), 150 mA holding current (IH), and supports 500 A(pk) 10×1000 µs surge current per GR-1089-CORE. It is used in central office and customer premises equipment to meet IEC 61000-4-5 and ITU-T K.20/21 compliance.
For engineers reviewing the NP2300SBT3G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, SMB package dimensions, bidirectional crowbar behavior, surge waveform ratings (2×10 µs to 10×1000 µs), and RoHS-compliant lead-free construction - all critical for telecom surge protection design validation.
Technical Context
The NP2300SBT3G operates as a voltage-triggered bidirectional crowbar device: it remains high-impedance below VDRM (190 V), switches to low-impedance conduction at VBO (260 V ±5%), and latches until current falls below IH (150–250 mA). Its dv/dt rating of 5.0 kV/s prevents false triggering under fast transients.
It is rated for continuous operation from −40°C to +150°C, with thermal resistance RθJA = 90°C/W on FR4 PCB (3″×4.5″, 2 oz copper), and exhibits typical capacitance of 36 pF at 1 MHz - enabling minimal signal distortion in voice/data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | 190 V - Maximum repetitive off-state voltage both polarities; defines maximum steady-state line voltage it can block without leakage. |
| VBO | 260 V - Breakover voltage threshold where device triggers into conduction; ensures reliable clamping above normal operating voltage. |
| VT | 4.0 V - On-state voltage at 1.0 A(pk); determines power dissipation during surge event (P = VT × IPPS). |
| IH | 150–250 mA - Minimum current required to maintain conduction; ensures clean reset after surge subsides. |
| IPPS7 | 100 A(pk) - Non-repetitive surge current rating for 10×1000 µs waveform; validates compliance with GR-1089-CORE Level C. |
| CO | 36 pF - Junction capacitance at 1 MHz / 2 Vdc bias; preserves signal integrity in broadband telecom interfaces. |
| dV/dt | 5.0 kV/s - Critical rate of rise of off-state voltage; prevents spurious turn-on from fast-rising noise transients. |
Pinout & Package
NP2300SBT3G uses the SMB (DO-214AA, Case 403C) surface-mount package: 4.06–4.57 mm length, 3.30–3.81 mm width, 1.90–2.41 mm height, with gull-wing leads. Marking "230B" identifies the device on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MT1 | Main Terminal 1 | Anode/cathode terminal for bidirectional conduction; symmetric with MT2 - no polarity assignment required. |
| MT2 | Main Terminal 2 | Second main terminal; forms the protected line pair (e.g., Tip/Ring or Line1/Line2) with MT1. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional crowbar action | Protects AC-coupled telecom lines without polarity sensitivity - eliminates need for dual-device discrete solutions. |
| GR-1089-CORE Level C compliance | Validated for 100 A(pk) 10×1000 µs surge - meets stringent central office equipment immunity requirements. |
| Low 36 pF capacitance | Minimizes insertion loss and phase distortion in voice-band (0.3–3.4 kHz) and DSL signals up to 30 MHz. |
| Pb-free, RoHS-compliant SMB package | Enables drop-in replacement in legacy telecom designs while meeting modern environmental manufacturing standards. |
| −40°C to +150°C operating range | Supports deployment in uncontrolled environments including outdoor cabinets and remote terminal units. |
Applications
| Central Office Line Cards | DSLAM Protection Modules |
|---|---|
|
Use Scenario: Protecting analog subscriber line interface circuits (SLIC) from lightning-induced surges on POTS lines. IC Role / Device Role / Timing Role: Crowbar-type primary protector placed before line transformer and SLIC IC to shunt >100 A surges away from sensitive silicon. Use Value: Prevents catastrophic failure of SLICs and codec ICs by limiting transient voltage to <4 V during conduction - preserving system uptime and repair cost. |
Use Scenario: Safeguarding ADSL/VDSL line drivers and receivers against induced surges on twisted-pair distribution frames. IC Role / Device Role / Timing Role: First-stage overvoltage clamp on line-side differential pairs, coordinated with secondary TVS diodes for multi-level protection. Use Value: Maintains signal fidelity with only 36 pF capacitance - avoids attenuation or echo in upstream/downstream bands up to 30 MHz. |
| IP Phone Interface Circuits | ISDN BRI NT1 Units |
|
Use Scenario: Surge hardening of Ethernet-powered VoIP phone line interfaces exposed to building wiring faults. IC Role / Device Role / Timing Role: Bidirectional TSPD across tip/ring pins to absorb 2×10 µs and 10×160 µs transients per TIA-968-A. Use Value: Enables single-device protection without polarity reversal concerns - reduces BOM count and layout area by 50% vs. back-to-back diodes. |
Use Scenario: Overvoltage protection for ISDN Basic Rate Interface (BRI) network termination units handling S/T interface surges. IC Role / Device Role / Timing Role: Primary protector on S/T bus lines, triggered before secondary protection stages to handle up to 150 A(pk) 2×10 µs events. Use Value: Meets ITU-T K.20/21 Class A/B requirements with guaranteed 190 V blocking - ensures interoperability with global ISDN infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar thyristor surge protector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NP2300SAT3G | Same VDRM/VBO/IH, identical SMB package, but marked "230A" - corresponds to Series A surge rating (150 A 2×10 µs, 90 A 10×160 µs). | Optimized for higher-speed surge waveforms; less suitable for long-tail 10×1000 µs events requiring Level C compliance. | Select NP2300SAT3G when prioritizing fast-rise transient response over sustained energy handling. |
| NP2300SCT3G | Same electrical specs and package, marked "230C" - rated for 500 A(pk) 2×10 µs and 200 A(pk) 10×700 µs per GR-1089-CORE Level C. | Higher surge margin for extreme environments (e.g., overhead line exposure); may require derating in thermally constrained layouts. | Choose NP2300SCT3G for deployments where worst-case lightning coupling exceeds 100 A(pk) 10×1000 µs. |
Compared with NP2300SAT3G and NP2300SCT3G, the NP2300SBT3G provides balanced surge capability (100 A 10×1000 µs) and thermal performance (RθJA = 90°C/W), making it optimal for standard central office and DSLAM applications requiring GR-1089-CORE Level C without over-engineering.
Availability
NP2300SBT3G is available at Aetrix Electronics and suitable for central office line cards, DSLAM protection modules, IP phone interface circuits, and ISDN BRI NT1 units requiring stable component supply, RoHS-compliant sourcing, and validated telecom surge immunity.
Supply support for NP2300SBT3G 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, sensing, and connectivity solutions for automotive, industrial, cloud, and communications markets.
The NP Series thyristor surge protectors were developed specifically for telecom infrastructure applications - delivering robust, bidirectional overvoltage protection with precise VDRM/VBO matching and industry-standard surge waveform compliance.
FAQ
What is the peak off-state voltage rating of the NP2300SBT3G?
The NP2300SBT3G has a peak off-state voltage (VDRM) rating of 190 V for both polarities. This value represents the maximum repetitive voltage the device can block without entering conduction under normal operating conditions. It is measured at 25°C and ensures compatibility with telecom line voltages up to ±190 V, including ringing and longitudinal surges. The NP2300SBT3G maintains this rating across its full operating temperature range of −40°C to +150°C.
How does the NP2300SBT3G differ from the NP2300SAT3G and NP2300SCT3G variants?
The NP2300SBT3G, NP2300SAT3G, and NP2300SCT3G share identical electrical parameters (VDRM, VBO, VT, IH) and SMB package, differing only in surge waveform ratings and marking codes ("230B", "230A", "230C"). The NP2300SBT3G is rated for 100 A(pk) 10×1000 µs per GR-1089-CORE Level C, whereas NP2300SAT3G targets faster 2×10 µs events and NP2300SCT3G supports higher 500 A(pk) 2×10 µs surges. All three are RoHS-compliant and pin-compatible.
Does the NP2300SBT3G require external gate control or biasing?
No, the NP2300SBT3G is a gateless, voltage-triggered thyristor device. It requires no external gate signal, bias resistor, or control circuitry. Conduction initiates automatically when the voltage across MT1–MT2 exceeds the breakover voltage (VBO = 260 V) in either polarity, and it remains latched until current drops below the holding current (IH = 150–250 mA). This self-triggering behavior simplifies protection circuit design and improves reliability.
What is the thermal resistance of the NP2300SBT3G, and how does it impact layout?
The NP2300SBT3G has a junction-to-ambient thermal resistance (RθJA) of 90°C/W when mounted on a standard FR4 PCB (3″×4.5″, 2 oz copper, fan-out pattern). This value assumes no additional copper pour or thermal vias. For high-surge-frequency applications, designers should allocate ≥25 mm² of 2 oz copper connected to both MT1 and MT2 pads to maintain safe junction temperatures below 150°C. The NP2300SBT3G's SMB footprint allows direct integration into existing telecom PCB footprints.
Is the NP2300SBT3G compliant with IEC 61000-4-5 and ITU-T K.20/21 standards?
Yes, the NP2300SBT3G is explicitly validated for compliance with IEC 61000-4-5 (10×1000 µs surge, 2 kV line-earth), ITU-T K.20 (75 A 10×360 µs), K.21 (100 A 10×700 µs), and GR-1089-CORE Level C (100 A 10×1000 µs). These ratings are confirmed in the official onsemi datasheet (NP0640S/D, Rev. 5) and supported by third-party test reports referenced in the device's regulatory documentation. The NP2300SBT3G is also UL Recognized (File E171778).
NP2300SBT3G 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):
- -
- Current - Peak Pulse (10/1000µs):
- 80 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 56pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
NP2300SBT3G FAQ
1.How can I place an order for NP2300SBT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for NP2300SBT3G 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 NP2300SBT3G reliable?
The price and inventory of NP2300SBT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NP2300SBT3G is usually 5 days.
3.What payment methods are accepted for NP2300SBT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NP2300SBT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NP2300SBT3G?
NP2300SBT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NP2300SBT3G 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 NP2300SBT3G?
For technical support, including NP2300SBT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NP2300SBT3G requirements.
6.How does Aetrix verify that NP2300SBT3G is sourced from the original manufacturer or authorized distributors?
All NP2300SBT3G 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 NP2300SBT3G meets industry standards.
7.What is the process for return or replacement of NP2300SBT3G?
All NP2300SBT3G units undergo pre-shipment inspection (PSI). If there is an issue with NP2300SBT3G, 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 NP2300SBT3G part is unused and in its original packaging.
Return procedure for NP2300SBT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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