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onsemi NTVB090NSA-L
- Part No.:
- NTVB090NSA-L
- Manufacturer:
- onsemi
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
NTVB090NSA-L.pdf
- Description:
- THYRISTOR 90V 50A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,561
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Product details
Overview
NTVB090NSA-L from onsemi is a bidirectional thyristor surge protector (TSPD) designed for overvoltage protection in telecom line interfaces. It features 90 V peak off-state voltage (VDRM), 130 V breakover voltage (VBO), 4.0 V on-state voltage (VT), 150 mA holding current (IH), and supports 75 A peak surge current (10×360 µs waveform) - deployed in central office, access network, and customer premises equipment.
For engineers reviewing the NTVB090NSA-L datasheet, pinout, applications, or equivalent options, key selection criteria include bidirectional crowbar action, SMB package compatibility, GR-1089-CORE/ITU-T K.20 compliance, low capacitance (58 pF), and thermal resistance of 90 °C/W for telecom surge clamping designs.
Technical Context
The NTVB090NSA-L operates as a voltage-triggered crowbar device: it remains high-impedance below 90 V (VDRM) and latches into low-impedance conduction above 130 V (VBO) in either polarity. Its 4.0 V on-state voltage ensures minimal power dissipation during clamping, while 150 mA holding current guarantees reliable latch-off only after surge energy subsides.
Designed for telecom line protection, it meets IEC 61000-4-5, ITU-T K.20/K.21/K.45, and GR-1089-CORE standards. Its 58 pF typical capacitance at 1 MHz minimizes signal distortion on voice/data lines, and the SMB (DO-214AA) package enables surface-mount integration with 90 °C/W junction-to-ambient thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | 90 V - Maximum repetitive off-state voltage before triggering; defines safe operating range for protected line. |
| VBO | 130 V - Breakover voltage threshold in both polarities; initiates crowbar action during surge events. |
| VT | 4.0 V - On-state voltage at 1.0 A peak; determines clamping voltage drop and power dissipation during conduction. |
| IH | 150 mA - Minimum current required to maintain conduction; ensures device resets only after surge decays. |
| CO | 58 pF - Typical capacitance at 1 MHz/2 Vdc; preserves signal integrity on analog/digital telecom lines. |
| IPPS4 | 75 A - Non-repetitive surge current rating for 10×360 µs waveform per GR-1089-CORE; validates robustness against lightning-induced transients. |
| RθJA | 90 °C/W - Junction-to-ambient thermal resistance on FR4 PCB (3″×4.5″, 2 oz Cu); informs thermal design margin under sustained surge duty. |
Pinout & Package
SMB (DO-214AA) surface-mount package per JEDEC case 403C, with 2-terminal configuration: MT1 and MT2 are symmetrical, bidirectional anode/cathode terminals requiring no polarity assignment in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MT1 | Main Terminal 1 | Bidirectional current path terminal; interchangeable with MT2; connects to protected line or ground reference point. |
| MT2 | Main Terminal 2 | Bidirectional current path terminal; identical function to MT1; enables symmetric placement across differential or single-ended lines. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional crowbar protection | Clamps overvoltage in both polarities without external polarity control - eliminates need for dual-device solutions. |
| Low clamping voltage | 4.0 V on-state voltage limits energy dissipation and prevents downstream component damage during surge conduction. |
| GR-1089-CORE compliance | Validated for 75 A (10×360 µs) surge current - meets central office equipment immunity requirements for lightning surges. |
| Low signal-line capacitance | 58 pF typical capacitance minimizes insertion loss and phase distortion on voice-grade and broadband DSL lines. |
| SMB package footprint | Standard DO-214AA outline enables drop-in replacement and automated assembly compatibility with existing telecom PCB layouts. |
Applications
| DSL Line Card Protection | Central Office Subscriber Line Interface |
|---|---|
|
Use Scenario: Protecting ADSL/VDSL line cards from lightning-induced surges on copper loop pairs. IC Role / Device Role / Timing Role: Bidirectional crowbar clamping device placed between line transformer secondary and codec interface. Use Value: Limits transient voltage to ≤4 V during 75 A surges, preserving codec IC integrity and meeting ITU-T K.21 immunity requirements. |
Use Scenario: Surge protection for subscriber line interface circuits (SLIC) in carrier-class central office switches. IC Role / Device Role / Timing Role: Primary overvoltage protector on tip/ring lines prior to hybrid transformer and SLIC front-end. Use Value: Withstands 150 A (2×10 µs) GR-1089-CORE surges while maintaining <58 pF capacitance to avoid echo cancellation degradation. |
| VoIP Gateway Analog Port Protection | ISDN BRI S/T Interface Protection |
|
Use Scenario: Safeguarding analog FXS ports in enterprise VoIP gateways against accidental AC power cross-connects and induced surges. IC Role / Device Role / Timing Role: Fast-acting crowbar element shunting surge current away from line driver and codec ICs. Use Value: 130 V VBO ensures no false triggering during normal 90 V ringing signals, while 150 mA IH guarantees clean reset post-surge. |
Use Scenario: Protecting ISDN Basic Rate Interface (BRI) S/T bus lines from ESD and lightning surges in PBX and NT1 devices. IC Role / Device Role / Timing Role: Bidirectional voltage clamp on balanced 2B+D differential pair, placed before line receiver IC. Use Value: 58 pF capacitance avoids skew between B-channels and preserves 144 kbps data integrity per ITU-T I.430. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar thyristor surge protector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NTVB090NSB-L | Same electrical specs (VDRM, VBO, IH, CO), but shipped in 2500/reel vs. 2500/reel - identical performance and marking (90NB vs. 90NA). | Identical use cases; differs only in date code format and reel packaging label - no functional or layout impact. | Select NTVB090NSB-L if sourcing requires alternate date-code traceability or specific distributor packaging preference. |
| NTVB065NSA-L | Lower VDRM (65 V) and VBO (88 V); same IH (150 mA), VT (4.0 V), and CO (79 pF); reduced surge rating (90 A @ 10×160 µs). | Suitable for lower-voltage analog lines (e.g., POTS, alarm circuits) where 90 V operating margin is excessive. | Choose NTVB065NSA-L only when system nominal voltage is ≤65 V and full 90 V VDRM headroom is unnecessary. |
Compared with NTVB090NSA-L, NTVB090NSB-L offers identical protection performance with alternate marking and packaging, while NTVB065NSA-L provides lower-voltage clamping for cost-sensitive or lower-margin line applications - neither is pin-compatible in the sense of direct substitution without system-level voltage revalidation.
Availability
NTVB090NSA-L is available at Aetrix Electronics and suitable for DSL line card protection, central office subscriber line interfaces, and VoIP gateway analog port protection requiring stable component supply and GR-1089-CORE compliance.
Supply support for NTVB090NSA-L 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 connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NTVB Series is part of onsemi's dedicated surge protection portfolio, engineered specifically for telecom infrastructure applications requiring bidirectional, low-capacitance, high-surge-current clamping with regulatory compliance out-of-the-box.
FAQ
What is the primary function of the NTVB090NSA-L in a telecom circuit?
The NTVB090NSA-L functions as a bidirectional thyristor surge protector (TSPD) that acts as a crowbar device - remaining non-conductive below 90 V (VDRM) and latching into low-impedance conduction above 130 V (VBO) to divert surge energy away from sensitive downstream components. In the NTVB090NSA-L, this behavior protects analog and digital telecom line interfaces from lightning-induced transients and AC power cross-connects while maintaining signal integrity via its 58 pF capacitance.
Does the NTVB090NSA-L require external trigger circuitry to operate?
No, the NTVB090NSA-L is a self-triggering, voltage-activated device with no external control pins or bias requirements. It relies solely on intrinsic thyristor characteristics: once voltage across MT1–MT2 exceeds 130 V in either polarity, it breaks over and latches until current falls below 150 mA (IH). The NTVB090NSA-L is designed for passive, always-on protection without supporting ICs or timing circuits.
What standards does the NTVB090NSA-L meet for telecom surge immunity?
The NTVB090NSA-L is validated to meet GR-1089-CORE (75 A, 10×360 µs), ITU-T K.20/K.21/K.45, IEC 61000-4-5, TIA-968-A, FCC Part 68, EN 60950, and UL 1950. These certifications confirm its suitability for central office, access network, and customer premises equipment where standardized surge immunity is mandatory - a core validation point for the NTVB090NSA-L in regulated telecom deployments.
Can the NTVB090NSA-L be used in DC power line protection?
The NTVB090NSA-L is not recommended for DC power rail protection due to its 150 mA holding current (IH) and lack of automatic reset - once triggered by overvoltage, it remains latched until load current drops below IH. In constant-current DC systems, this causes persistent short-circuit behavior. The NTVB090NSA-L is optimized for intermittent telecom line surges, not continuous DC fault clearing.
What is the thermal derating behavior of the NTVB090NSA-L under repeated surge conditions?
The NTVB090NSA-L has a junction-to-ambient thermal resistance of 90 °C/W on standard FR4 PCB (3″×4.5″, 2 oz Cu). Under repeated surges, thermal accumulation must stay within −40°C to +150°C operating range; datasheet notes require cooling between polarity tests. For high-duty-cycle applications, the NTVB090NSA-L demands careful PCB copper area allocation and spacing to avoid thermal runaway - its 90 °C/W RθJA directly governs safe surge repetition rate.
NTVB090NSA-L Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Breakover:
- 130V
- Voltage - Off State:
- 90V
- Voltage - On State:
- 4 V
- Current - Peak Pulse (8/20µs):
- -
- Current - Peak Pulse (10/1000µs):
- 50 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 58pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
NTVB090NSA-L FAQ
1.How can I place an order for NTVB090NSA-L through Aetrix?
Please submit a Request for Quotation (RFQ) for NTVB090NSA-L 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 NTVB090NSA-L reliable?
The price and inventory of NTVB090NSA-L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NTVB090NSA-L is usually 5 days.
3.What payment methods are accepted for NTVB090NSA-L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NTVB090NSA-L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NTVB090NSA-L?
NTVB090NSA-L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NTVB090NSA-L 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 NTVB090NSA-L?
For technical support, including NTVB090NSA-L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NTVB090NSA-L requirements.
6.How does Aetrix verify that NTVB090NSA-L is sourced from the original manufacturer or authorized distributors?
All NTVB090NSA-L 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 NTVB090NSA-L meets industry standards.
7.What is the process for return or replacement of NTVB090NSA-L?
All NTVB090NSA-L units undergo pre-shipment inspection (PSI). If there is an issue with NTVB090NSA-L, 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 NTVB090NSA-L part is unused and in its original packaging.
Return procedure for NTVB090NSA-L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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