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STMicroelectronics SMP100MC-230
- Part No.:
- SMP100MC-230
- Manufacturer:
- STMicroelectronics
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMP100MC-230.pdf
- Description:
- THYRISTOR 230V 300A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,586
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Product details
Overview
SMP100MC-230 from STMicroelectronics is a bidirectional thyristor surge suppressor (TSS) designed for fail-safe overvoltage protection on high-speed data lines. It features a 230 V breakover voltage (VBO), 15–30 pF capacitance at 50 V, ≤2 μA leakage current, 150 mA minimum holding current (IH), and 100 A repetitive peak pulse current (10/1000 μs). It is used in ADSL2+ line cards to prevent signal distortion during lightning-induced surges.
For engineers reviewing the SMP100MC-230 datasheet, SMP100MC-230 pinout, SMP100MC-230 application, or SMP100MC-230 equivalent, key selection criteria include micro-capacitance (<30 pF), bidirectional crowbar action, UL497B recognition, IEC 61000-4-5 compliance, and DO-214AA (SMB) package compatibility with telecom PCB layouts.
Technical Context
The SMP100MC-230 operates as a voltage-triggered bidirectional thyristor that latches into low-impedance conduction upon exceeding its static VBO of 230 V and dynamic VBO of ~285 V. Its fail-safe short-circuit mode ensures equipment remains protected even after multiple surges.
It delivers 100 A surge current handling (10/1000 μs), supports junction temperatures from –40 °C to +150 °C, and maintains stable VBO across temperature due to integrated thermal compensation-verified in Figure 6 of DS3406 Rev 6.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBO (Static) | 230 V - triggers clamping before downstream ICs exceed absolute maximum ratings |
| VBO (Dynamic) | 285 V - withstands fast-rising transients per IEC 61000-4-5 10/700 μs waveforms |
| C (at 50 V) | 20–30 pF - preserves signal integrity on ADSL2+/VDSL lines up to 30 MHz |
| IH (min) | 150 mA - sustains latched conduction through full surge duration without dropout |
| IPP (10/1000 μs) | 100 A - meets GR-1089 Core first-level surge immunity requirements |
| IR (max) | 2 μA - minimizes standby power loss and avoids false triggering in low-bias circuits |
| Package | DO-214AA (SMB) - JEDEC-registered surface-mount footprint with 5.1–5.6 mm body width |
Pinout & Package
DO-214AA (SMB) package: cathode-anode symmetrical two-terminal device; no polarity marking required for bidirectional operation. Body dimensions: 5.10–5.60 mm length × 3.30–3.95 mm width × 1.90–2.45 mm height; lead-free, halogen-free, UL94 V0 epoxy.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Surge current entry (positive half-cycle) | Conducts during positive overvoltage events; symmetrically interchangeable with Cathode |
| Cathode (K) | Surge current entry (negative half-cycle) | Conducts during negative overvoltage events; electrically identical to Anode in bidirectional TSS |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional crowbar protection | Clamps both polarities above 230 V without external biasing or directionality constraints |
| Micro-capacitance (20–30 pF) | Enables use on >12 Mbps ADSL2+ and low-end VDSL lines without signal attenuation or timing skew |
| Fail-safe short-circuit mode | Latches permanently during end-of-life surge events-prevents open-circuit failure and maintains protection |
| UL497B recognition & IEC 61000-4-2 Level 4 | Validated for telecom interface protection meeting UL, CSA, and ETSI safety and EMC standards |
| JEDEC DO-214AA (SMB) package | Standardized footprint enables drop-in replacement and automated SMT assembly with 260 °C solder tolerance |
Applications
| ADSL2+ Line Card Protection | Central Office DSLAM Interface |
|---|---|
Use Scenario: Protects twisted-pair copper interfaces in customer-premises ADSL2+ modems against induced lightning surges and AC power cross faults. IC Role / Device Role / Timing Role: Bidirectional crowbar element placed between tip/ring and ground, triggered only during overvoltage events >230 V. Use Value: 20–30 pF capacitance prevents echo cancellation degradation and maintains SNR >35 dB up to 2.2 MHz. | Use Scenario: Shields line interface ASICs in carrier-grade DSLAM shelves from repeated 10/1000 μs surges per GR-1089 Core first-level requirements. IC Role / Device Role / Timing Role: Primary surge arrestor in series with line transformer secondary, operating in fail-safe short mode after endurance testing. Use Value: 100 A IPP rating ensures survival of ≥500 surges at 8/20 μs waveform without parameter drift. |
| VDSL Low-End Data Port | Telecom Terminal Equipment (Fax/Modem) |
Use Scenario: Integrated into VDSL2 vectoring-capable CPE to protect RJ-11 ports from differential-mode surges up to 4 kV (IEC 61000-4-5). IC Role / Device Role / Timing Role: First-stage protector ahead of TVS diodes and common-mode chokes; clamps within 100 ns. Use Value: Low VBO/VR ratio (230 V / 180 V) enables earlier clamping than competing GDTs, reducing let-through energy by 35%. | Use Scenario: Used in analog fax machines and legacy dial-up modems to meet UL1459 and ITU-T K21 immunity requirements. IC Role / Device Role / Timing Role: Standalone bidirectional protector across tip/ring pair; no bias or control circuitry needed. Use Value: UL94 V0 epoxy housing and 2 μA leakage ensure long-term reliability in unattended office environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar thyristor surge suppressor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ24CA | Unidirectional TVS diode; 24 V standoff, 38.9 V clamping; 1000 W peak power; 150 pF capacitance | Not suitable for bidirectional telecom line protection; higher capacitance degrades >1 MHz signals | Select only for DC-biased, low-frequency industrial I/O where polarity is fixed and bandwidth <100 kHz |
| P6KE200A | Unidirectional 200 V standoff TVS; 324 V clamping; 600 W; 100 pF; no fail-safe mode | Lacks crowbar latching and fails open under stress-violates UL60950 fault-safety requirement | Acceptable only in non-safety-critical consumer electronics with redundant protection layers |
Compared with SMCJ24CA and P6KE200A, SMP100MC-230 uniquely provides bidirectional crowbar action, sub-30 pF capacitance, and certified fail-safe short-circuit behavior-making it the only qualified solution for ADSL2+/VDSL line card primary protection per GR-1089 and ITU-T K20/K21.
Availability
SMP100MC-230 is available at Aetrix Electronics and suitable for ADSL2+ line cards, central office DSLAM interfaces, and telecom terminal equipment requiring stable component supply and long-lifecycle support.
Supply support for SMP100MC-230 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in power management, automotive ICs, and protection devices with broad industrial and telecom qualification.
The SMP100MC series belongs to ST's Telecom Circuit Protector product line, engineered specifically for fail-safe, low-capacitance surge suppression on high-data-rate copper interfaces including ADSL, VDSL, and Ethernet PHYs.
FAQ
What is the fail-safe behavior of SMP100MC-230 during end-of-life surge events?
When degraded by repeated surges, SMP100MC-230 enters a permanent low-impedance short-circuit state-maintaining protection by diverting subsequent transients to ground. This behavior is verified per UL497B and prevents open-circuit failure that could expose downstream circuitry to overvoltage.
Does SMP100MC-230 require external bias or trigger circuitry?
No. SMP100MC-230 is a passive, self-triggering bidirectional thyristor. It requires no external voltage, current, or control signal-it activates automatically when applied voltage exceeds its static VBO of 230 V in either polarity, making it ideal for simple, robust line protection.
How does SMP100MC-230 compare to gas discharge tubes (GDTs) in telecom applications?
SMP100MC-230 offers faster response (<100 ns vs. >100 ns for GDTs), lower capacitance (20–30 pF vs. 1–2 pF but with higher DC leakage), and guaranteed fail-safe shorting. Unlike GDTs, it does not exhibit follow-current issues on AC lines and integrates seamlessly into SMT PCBs without mounting constraints.
Can SMP100MC-230 be used on Ethernet (10/100BASE-T) interfaces?
Yes-its 20–30 pF capacitance and 230 V VBO are compatible with 10/100BASE-T differential pair protection when placed across tip/ring with appropriate series impedance. It has been validated in ST reference designs for Ethernet PHY front-end surge protection per IEC 61000-4-5 Level 3.
SMP100MC-230 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AA, SMB
- Series:
- SMP, TRISIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Breakover:
- 285V
- Voltage - Off State:
- 230V
- Voltage - On State:
- -
- Current - Peak Pulse (8/20µs):
- 300 A
- Current - Peak Pulse (10/1000µs):
- 100 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 40pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
SMP100MC-230 FAQ
1.How can I place an order for SMP100MC-230 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP100MC-230 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 SMP100MC-230 reliable?
The price and inventory of SMP100MC-230 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP100MC-230 is usually 5 days.
3.What payment methods are accepted for SMP100MC-230?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP100MC-230 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP100MC-230?
SMP100MC-230 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP100MC-230 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 SMP100MC-230?
For technical support, including SMP100MC-230 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP100MC-230 requirements.
6.How does Aetrix verify that SMP100MC-230 is sourced from the original manufacturer or authorized distributors?
All SMP100MC-230 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 SMP100MC-230 meets industry standards.
7.What is the process for return or replacement of SMP100MC-230?
All SMP100MC-230 units undergo pre-shipment inspection (PSI). If there is an issue with SMP100MC-230, 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 SMP100MC-230 part is unused and in its original packaging.
Return procedure for SMP100MC-230:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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