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STMicroelectronics SMP80MC-230
- Part No.:
- SMP80MC-230
- Manufacturer:
- STMicroelectronics
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMP80MC-230.pdf
- Description:
- THYRISTOR 230V 200A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,356
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Product details
Overview
SMP80MC-230 from STMicroelectronics is a bidirectional Trisil™ transient voltage surge suppressor (TVSS) designed for primary-level overvoltage protection in telecom line interfaces. It features a 230 V stand-off voltage (VRM), 295 V dynamic breakover voltage (VBO), 80 A repetitive peak pulse current (10/1000 µs), 12 pF capacitance at 50 V, and 2 µA max leakage current - enabling low-signal-distortion protection for ADSL2+/VDSL2 equipment.
For engineers reviewing the SMP80MC-230 datasheet, SMP80MC-230 pinout, SMP80MC-230 application, or SMP80MC-230 equivalent, this device serves as a fail-safe crowbar protector in telecom central office and terminal equipment where GR-1089 Core, ITU-T K20/K21, and IEC 61000-4-5 compliance are required alongside micro-capacitance signal integrity.
Technical Context
The SMP80MC-230 operates as a voltage-triggered bidirectional thyristor-based crowbar device, entering low-impedance conduction when transient voltage exceeds its 295 V dynamic breakover threshold. Its fail-safe short-circuit mode ensures robust protection even after end-of-life stress.
It delivers 80 A peak pulse handling per 10/1000 µs waveform with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-leads), supporting reliable operation up to 150 °C junction temperature under sustained surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 230 V - maximum continuous reverse voltage before triggering; defines operating margin for 220 V AC telecom lines. |
| Dynamic Breakover Voltage (VBO) | 295 V - voltage at which device switches to low-impedance state under 100 V/µs dV/dt; ensures fast response to lightning surges. |
| Repetitive Peak Pulse Current (IPP) | 80 A @ 10/1000 µs - handles repeated telecom-grade surges without degradation; validated per GR-1089 Core first-level requirements. |
| Junction Capacitance (C) | 12 pF @ 50 V - preserves signal fidelity in high-speed digital lines (ADSL2+, VDSL2); avoids data corruption or attenuation. |
| Holding Current (IH) | 150 mA min - minimum current needed to sustain conduction; ensures stable clamping until surge energy dissipates. |
| Leakage Current (IR) | 2 µA max @ VRM - negligible DC loading on protected line; prevents false triggering or power loss in idle state. |
Pinout & Package
Package: SMB (JEDEC DO-214AA), surface-mount, lead-free, UL94 V0 epoxy housing. Dimensions: 5.10–5.60 mm E × 3.30–3.95 mm D × 0.75–1.50 mm L; cathode bar marking indicates polarity for unidirectional variants (not applicable here - SMP80MC-230 is bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive surge path terminal | Bidirectional structure means either terminal functions as anode depending on surge polarity; no fixed polarity assignment. |
| Cathode (K) | Negative surge path terminal | Same as Anode - symmetric terminals enable identical performance for positive/negative transients; marked with cathode bar only on unidirectional versions. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional crowbar action | Enables symmetrical protection of AC-coupled telecom lines without external polarity management or series diodes. |
| Fail-safe short-circuit mode | Guarantees continued protection even after end-of-life wear-out - critical for telecom infrastructure reliability and safety certification. |
| Micro capacitance (12 pF) | Maintains >1 MHz bandwidth integrity; supports full-rate ADSL2+ (up to 24 Mbps) and VDSL2 (up to 100 Mbps) without signal distortion. |
| Low VBO / VR ratio (1.28) | Minimizes clamping overshoot during fast-rising surges; improves margin against equipment withstand limits per IEC 61000-4-5. |
Applications
| Central Office Line Cards | DSLAM Protection Modules |
|---|---|
|
Use Scenario: Primary surge protection on POTS/DSL line inputs of carrier-class DSLAMs exposed to lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Bidirectional crowbar TVS that triggers within nanoseconds to shunt 80 A surges before downstream transceivers are damaged. Use Value: Meets GR-1089 Core first-level (2500 V / 500 A) and second-level (5000 V) requirements while preserving signal integrity via 12 pF capacitance. |
Use Scenario: Front-end protection for multi-port ADSL2+/VDSL2 line interface cards in broadband access networks. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor placed before hybrid transformers and line drivers to prevent latch-up or burnout. Use Value: Enables >20-year field life without aging drift; certified to UL497B, IEC 61000-4-5, and ITU-T K20/K21 for global deployment. |
| VoIP Gateway Interfaces | ISDN Terminal Equipment |
|
Use Scenario: Surge protection on analog FXS/FXO ports of enterprise VoIP gateways connected to PSTN lines. IC Role / Device Role / Timing Role: Fail-safe crowbar that shorts line faults to ground, preventing damage to codec ICs and isolation transformers. Use Value: 2 µA leakage ensures minimal impact on loop current sensing; 230 V VRM matches standard -48 V DC telecom supply with AC ringing tolerance. |
Use Scenario: Overvoltage protection on S/T bus interfaces of ISDN terminal adapters and NT1 devices. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed between line transformer secondary and physical layer IC. Use Value: 295 V VBO provides adequate margin above 230 V RMS ringing voltage (≈325 V peak), avoiding nuisance triggering during normal operation. |
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 |
|---|---|---|---|
| SMCJ230CA | Unidirectional TVS diode; higher capacitance (≈100 pF); lower IPP (60 A @ 10/1000 µs); no fail-safe short-circuit mode. | Limited to DC-biased or polarity-controlled lines; unsuitable for AC-coupled telecom interfaces requiring bidirectional symmetry. | Select only if circuit includes external polarity conditioning and signal bandwidth < 1 MHz. |
| P6SMB230CA | Unidirectional TVS diode; 100 pF capacitance; 60 A IPP; clamps at ≈380 V (VBR), not crowbar-triggered. | Higher clamping voltage increases risk of downstream component overstress; lacks fail-safe behavior under end-of-life conditions. | Acceptable only for non-critical, cost-sensitive consumer-grade modems with no GR-1089 compliance requirement. |
Compared with SMCJ230CA and P6SMB230CA, the SMP80MC-230 offers superior signal integrity (12 pF vs. ≥100 pF), guaranteed fail-safe operation, and higher surge current rating - making it uniquely suited for carrier-grade telecom line cards where reliability, standards compliance, and high-speed signal fidelity are mandatory.
Availability
SMP80MC-230 is available at Aetrix Electronics and suitable for central office line cards, DSLAM protection modules, and VoIP gateway interfaces requiring stable component supply, long-term lifecycle support, and GR-1089/IEC 61000-4-5 certified surge protection.
Supply support for SMP80MC-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, Switzerland, specializing in power management, analog, MEMS, and automotive ICs with strong focus on industrial and communications infrastructure.
The SMP80MC series belongs to ST's Trisil™ transient protection product line, engineered specifically for fail-safe, high-reliability surge suppression in telecom and datacom equipment operating under GR-1089, ITU-T K20/K21, and IEC 61000-4-5 standards.
FAQ
What is the fail-safe behavior of SMP80MC-230?
The SMP80MC-230 enters a permanent low-impedance short-circuit state upon end-of-life wear-out, ensuring continued overvoltage protection rather than open-circuit failure. This behavior is inherent to its thyristor-based Trisil™ structure and is verified per UL497B and GR-1089 Core requirements.
Can SMP80MC-230 be used in AC mains applications?
No - SMP80MC-230 is rated for telecom signal-line protection only, with 230 V VRM and 295 V VBO. It is not designed for 120/230 VAC mains input stages, which require higher voltage ratings, creepage/clearance, and different surge waveforms (e.g., 8/20 µs + 1.2/50 µs combinations).
How does SMP80MC-230 compare to MOV-based protectors?
Unlike metal-oxide varistors, SMP80MC-230 exhibits no aging under repeated surges, has lower capacitance (12 pF vs. 100–1000 pF), faster response (<100 ns), and guaranteed fail-safe shorting. MOVs degrade with each event and may fail open or short unpredictably.
Is PCB layout critical for SMP80MC-230 performance?
Yes - ST specifies a recommended FR4 footprint with 35 µm copper thickness to achieve Rth(j-a) = 100 °C/W. Excessive trace length or undersized copper pour increases thermal impedance, reducing surge current capability and risking thermal runaway during repeated 80 A pulses.
SMP80MC-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:
- 295V
- Voltage - Off State:
- 230V
- Voltage - On State:
- -
- Current - Peak Pulse (8/20µs):
- 200 A
- Current - Peak Pulse (10/1000µs):
- 80 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 25pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
SMP80MC-230 FAQ
1.How can I place an order for SMP80MC-230 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP80MC-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 SMP80MC-230 reliable?
The price and inventory of SMP80MC-230 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP80MC-230 is usually 5 days.
3.What payment methods are accepted for SMP80MC-230?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP80MC-230 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP80MC-230?
SMP80MC-230 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP80MC-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 SMP80MC-230?
For technical support, including SMP80MC-230 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP80MC-230 requirements.
6.How does Aetrix verify that SMP80MC-230 is sourced from the original manufacturer or authorized distributors?
All SMP80MC-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 SMP80MC-230 meets industry standards.
7.What is the process for return or replacement of SMP80MC-230?
All SMP80MC-230 units undergo pre-shipment inspection (PSI). If there is an issue with SMP80MC-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 SMP80MC-230 part is unused and in its original packaging.
Return procedure for SMP80MC-230:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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