My Inquiry
My Account
onsemi NP3100SBMCT3G
- Part No.:
- NP3100SBMCT3G
- Manufacturer:
- onsemi
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
NP3100SBMCT3G.pdf
- Description:
- THYRISTOR 275V 250A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,280
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NP3100SBMCT3G from onsemi is a bidirectional ultra-low-capacitance thyristor surge protection device (TSPD) designed for telecom line protection in xDSL and T1/E1 interfaces. It features ±275 V repetitive peak off-state voltage (VDRM), ±350 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 low signal distortion in high-speed data lines.
For engineers reviewing the NP3100SBMCT3G datasheet, pinout, applications, or equivalent options, key selection considerations include VDRM margin over system operating voltage, V(BO) alignment with protected circuit failure threshold, low Co for minimal insertion loss, surge current capability per GR-1089-CORE Class B/C waveforms, and SMB package compatibility with telecom PCB layouts.
Technical Context
The NP3100SBMCT3G operates as a 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), shunting surge energy to ground. Its bidirectional symmetry supports AC-coupled telecom lines without polarity constraints.
It meets GR-1089-CORE, ITU-T K.20/K.21/K.45, IEC 61000-4-5, and FCC Part 68 requirements. The device sustains non-repetitive peak impulse currents up to 250 A (10×160 µs) and 150 A (2×10 µs), with thermal resistance RθJA = 90 °C/W on standard FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | ±275 V - ensures stable open-circuit behavior under worst-case telecom line peaks (e.g., 48 VDC + 150 Vrms ring = ~260 V peak) |
| V(BO) | ±350 V - defines maximum clamped voltage seen by protected circuitry; must be below SLIC or coupling capacitor breakdown rating |
| Co | 23 pF @ 1 MHz, 2 Vdc - enables <0.1 dB insertion loss in 100 Ω DSL/T1 lines up to 2.2 MHz |
| VT | 4 V @ 2.2 A pk - limits power dissipation during surge conduction; supports >500 A surge handling in SMB package |
| IH | 150 mA - prevents latch-up after surge; must exceed max steady-state line current (e.g., ADSL line feed current) |
| IDRM | 5 µA @ VDRM - guarantees near-zero leakage during normal operation; avoids DC bias shift in voice/DSL hybrid circuits |
| IPPS (B) | 250 A @ 10×160 µs - satisfies GR-1089-CORE Category B surge immunity testing for central office equipment |
Pinout & Package
NP3100SBMCT3G uses the SMB (DO-214AA, Case 403C) surface-mount package: 2-terminal, bidirectional, symmetrical layout with cathode/anode terminals interchangeable due to device symmetry. Dimensions: 4.06–4.57 mm (L) × 3.30–3.81 mm (W) × 1.90–2.41 mm (H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bidirectional surge path terminal | Interchangeable; connects across differential telecom line (Tip/Ring); no polarity marking required |
| Case / Body | Non-electrical mechanical interface | Thermally conductive but electrically isolated; soldered to PCB copper pour for thermal relief |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low off-state capacitance | 23 pF - preserves signal integrity in broadband DSL (up to 12 Mbps) and T1 (1.544 Mbps) transmission |
| Pb-free, RoHS-compliant SMB package | DO-214AA footprint - enables drop-in replacement in legacy telecom designs; compatible with standard reflow profiles |
| Precise bidirectional V(BO) | ±350 V - ensures consistent clamping across both polarities; eliminates need for dual-device back-to-back configuration |
| Low on-state voltage | 4 V @ 2.2 A - minimizes I²R heating during surge; supports repeated surges without thermal runaway |
| High surge current rating | 250 A (10×160 µs) - exceeds GR-1089-CORE Category B requirement; provides design margin for lightning-induced transients |
Applications
| ADSL Central Office Line Card | T1/E1 Data Interface Protection |
|---|---|
Use Scenario: Protects line interface circuitry on DSLAM cards from induced lightning surges and power cross events on twisted-pair subscriber loops. IC Role / Device Role / Timing Role: Crowbar-type transient suppressor placed across Tip/Ring before SLIC and line transformer. Use Value: 23 pF capacitance avoids attenuation of upstream/downstream ADSL signals; ±350 V V(BO) clamps transients below SLIC absolute maximum rating (typically ±380 V). | Use Scenario: Shields T1/E1 framer and transceiver ICs from ESD and surge events on long-haul balanced data lines. IC Role / Device Role / Timing Role: Bidirectional overvoltage clamp installed differential across receive/transmit pairs at network boundary. Use Value: Symmetrical ±275 V VDRM blocks common-mode noise while allowing full 100–150 Vpp AC signaling; 250 A surge rating meets Telcordia GR-1089-CORE Category B. |
| xDSL Customer Premises Equipment | Broadband Voice over DSL (VoDSL) |
Use Scenario: Integrated into residential DSL modems/routers to protect internal PHY and analog front-end from induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Primary line-side surge arrestor mounted directly at RJ-11 connector entry point. Use Value: SMB package fits compact CPE PCBs; 150 mA IH exceeds typical line feed current (<100 mA), ensuring automatic recovery post-surge. | Use Scenario: Safeguards voice codec and hybrid circuitry in VoDSL gateways where analog voice and digital data share same pair. IC Role / Device Role / Timing Role: Low-capacitance protector maintaining voice band (300–3400 Hz) fidelity while suppressing fast transients. Use Value: 23 pF Co introduces <0.02 dB loss at 4 kHz - imperceptible to POTS quality; ±350 V V(BO) prevents clipping of 200 Vpk ringing signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar thyristor surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NP3100SCMC | Same electrical specs (VDRM, V(BO), Co, VT), identical SMB package, but marked with "C" suffix indicating alternate assembly/test lot - functionally identical to NP3100SBMCT3G | No difference in circuit implementation or layout; validated for same GR-1089-CORE and ITU-K.21 use cases | Select NP3100SCMC only if sourcing constraints require alternate date-code or tape-and-reel supplier; performance and reliability are equivalent. |
| SM15T27CA | Higher VDRM (±27 V) and lower V(BO) (±36.7 V); 350 pF Co - unsuitable for high-speed data; designed for low-frequency AC mains protection | Intended for 50/60 Hz power line protection, not telecom data lines; excessive capacitance would distort DSL signals | Not recommended for NP3100SBMCT3G applications; only consider for non-broadband, low-frequency surge scenarios where capacitance is not critical. |
Compared with NP3100SCMC (functionally identical variant) and SM15T27CA (low-frequency alternative), NP3100SBMCT3G uniquely delivers telecom-optimized 23 pF capacitance, ±275 V/±350 V voltage ratings, and 250 A GR-1089-CORE compliance - making it irreplaceable for high-speed xDSL and T1/E1 line protection where signal integrity and regulatory conformance are co-dependent.
Availability
NP3100SBMCT3G is available at Aetrix Electronics and suitable for xDSL central office line cards, T1/E1 data interface protection, and broadband voice over DSL (VoDSL) equipment requiring stable component supply, RoHS-compliant packaging, and GR-1089-CORE certified surge immunity.
Supply support for NP3100SBMCT3G 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 manufacturer specializing in energy-efficient power, analog, sensor, and logic solutions for automotive, industrial, cloud, medical, and telecom markets.
The NPMC Series - including NP3100SBMCT3G - was engineered specifically for telecom infrastructure protection, delivering ultra-low capacitance and precise breakover voltage to meet stringent ITU-T and Telcordia standards for DSL, T1/E1, and VoIP line interfaces.
FAQ
What is the maximum continuous operating voltage for NP3100SBMCT3G?
The NP3100SBMCT3G has a repetitive peak off-state voltage (VDRM) of ±275 V, meaning it can safely block up to 275 V peak in either polarity during normal operation. This rating ensures reliable open-circuit behavior under worst-case telecom line conditions, such as combined 48 VDC battery feed and 150 Vrms AC ringing voltage (≈260 V peak), with margin for transients.
Does NP3100SBMCT3G require external bias or control circuitry?
No, NP3100SBMCT3G is a passive crowbar device with no control pins or bias requirements. It operates autonomously: remaining high-impedance until line voltage exceeds ±350 V (V(BO)), then latching low-impedance until current falls below 150 mA (IH). No drivers, timers, or auxiliary power are needed - simplifying protection circuit design.
How does NP3100SBMCT3G differ from TVS diodes in telecom protection?
Unlike unidirectional or bidirectional TVS diodes, NP3100SBMCT3G offers 23 pF off-state capacitance - significantly lower than typical TVS devices (often >100 pF). This enables minimal signal distortion in high-speed DSL/T1 lines. Additionally, its thyristor structure provides sharper turn-on and higher surge current handling (250 A vs. typical TVS 100 A) without degradation over repeated events.
Is NP3100SBMCT3G compliant with RoHS and lead-free soldering standards?
Yes, NP3100SBMCT3G is Pb-free and RoHS-compliant, as indicated by the "G" suffix in its part number. It uses standard SnAgCu reflow profiles and is qualified per J-STD-020 moisture sensitivity level (MSL) 1, supporting automated SMT assembly without special handling or baking requirements.
Can NP3100SBMCT3G be used in series or parallel configurations?
NP3100SBMCT3G is designed for single-device placement across differential lines (Tip/Ring) and is not intended for series or parallel use. Its bidirectional symmetry and matched V(BO) eliminate need for back-to-back pairing. Parallel use risks current imbalance due to parameter spread; series use violates VDRM derating rules and is unsupported by onsemi's application guidance.
NP3100SBMCT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Breakover:
- 350V
- Voltage - Off State:
- 275V
- Voltage - On State:
- 4 V
- Current - Peak Pulse (8/20µs):
- 250 A
- Current - Peak Pulse (10/1000µs):
- 80 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 29pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
NP3100SBMCT3G FAQ
1.How can I place an order for NP3100SBMCT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for NP3100SBMCT3G 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 NP3100SBMCT3G reliable?
The price and inventory of NP3100SBMCT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NP3100SBMCT3G is usually 5 days.
3.What payment methods are accepted for NP3100SBMCT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NP3100SBMCT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NP3100SBMCT3G?
NP3100SBMCT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NP3100SBMCT3G 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 NP3100SBMCT3G?
For technical support, including NP3100SBMCT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NP3100SBMCT3G requirements.
6.How does Aetrix verify that NP3100SBMCT3G is sourced from the original manufacturer or authorized distributors?
All NP3100SBMCT3G 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 NP3100SBMCT3G meets industry standards.
7.What is the process for return or replacement of NP3100SBMCT3G?
All NP3100SBMCT3G units undergo pre-shipment inspection (PSI). If there is an issue with NP3100SBMCT3G, 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 NP3100SBMCT3G part is unused and in its original packaging.
Return procedure for NP3100SBMCT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NP3100SBMCT3G Tags
-
TISP4015L1AJR-S
Bourns Inc.
-
TISP4015L1BJR-S
Bourns Inc.
-
SMP100LC-270
STMicroelectronics
-
TISP4240M3BJR-S
Bourns Inc.
-
SMP100LC-35
STMicroelectronics
-
SMP100LC-65
STMicroelectronics
-
SMP100LC-8
STMicroelectronics
-
TISP4P035L1NR-S
Bourns Inc.
-
TISP4350H3BJR-S
Bourns Inc.
-
TISP4011H1BJR-S
Bourns Inc.
-
SMP100LC-400
STMicroelectronics
-
P0300SALRP
Littelfuse Inc.
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
