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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > Thyristors

STMicroelectronics SMP80MC-200

Name: SMP80MC-200
Brand: STMicroelectronics
SKU: SMP80MC-200
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SMP80MC-200

Manufacturer:: STMicroelectronics

Category:: Thyristors

Package:: DO-214AA, SMB

Datasheet:: SMP80MC-200.pdf

Description:: THYRISTOR 200V 200A DO-214AA

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Inventory:6,683

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Product details

Overview

SMP80MC-200 from STMicroelectronics is a bidirectional Trisil™ transient voltage surge suppressor (TVSS) designed for primary-level overvoltage protection in telecom line interfaces. It provides crowbar-type clamping at 200 V stand-off voltage, 255 V dynamic breakover voltage, 80 A repetitive peak pulse current (10/1000 µs), and ultra-low 12 pF capacitance at 50 V - enabling compatibility with ADSL2/ADSL2+ digital transmission without signal distortion.

For engineers reviewing the SMP80MC-200 datasheet, SMP80MC-200 pinout, SMP80MC-200 application, or SMP80MC-200 equivalent, this device is selected for telecom surge protection where low capacitance, fail-safe short-circuit behavior, and compliance with GR-1089 Core, ITU-T K20/K21, and IEC 61000-4-5 are mandatory design requirements.

Technical Context

The SMP80MC-200 operates as a voltage-triggered bidirectional thyristor-based crowbar device: it remains high-impedance below 200 V, triggers rapidly at 255 V (dynamic V_BO), latches on with ≥150 mA holding current, and sustains 80 A surges per 10/1000 µs waveform. Its micro-capacitance (12 pF @ 50 V) and low leakage (≤2 µA) preserve high-frequency signal integrity in xDSL lines.

Thermal design relies on JEDEC DO-214AA (SMB) package with R_th(j-a) = 100 °C/W (recommended footprint) and R_th(j-l) = 20 °C/W. Fail-safe operation ensures permanent short-circuit mode under end-of-life overstress, meeting UL60950 and IEC 950 safety requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Stand-off Voltage (V_RM)	200 V - Maximum continuous reverse voltage before triggering; sets protection threshold for telecom line interface.
Dynamic Breakover Voltage (V_BO)	255 V - Voltage at which device switches to low-impedance state during 100 V/µs surge; defines clamping onset point.
Repetitive Peak Pulse Current (I_PP)	80 A (10/1000 µs) - Sustained surge handling capability per GR-1089 Core first-level test; enables robust lightning strike immunity.
Junction Capacitance (C_J)	12 pF @ 50 V - Minimal signal loading on high-speed telecom lines; preserves ADSL2+ bandwidth and bit-error rate performance.
Holding Current (I_H)	≥150 mA - Minimum current required to maintain latched-on state; ensures reliable crowbar action until fault clears.
Leakage Current (I_R)	≤2 µA @ V_RM - Negligible DC power loss and noise injection in standby; critical for low-power line-powered equipment.

Pinout & Package

Package: JEDEC DO-214AA (SMB), surface-mount, lead-free, UL94 V0 epoxy, cathode bar marking for unidirectional variants (bidirectional SMP80MC-200 has no polarity marking).

Pin/Terminal	Circuit Role	Design Meaning
Anode (A)	Current entry terminal during positive half-cycle surge	Connected to protected line (e.g., tip or ring); forms symmetrical crowbar path with Cathode.
Cathode (K)	Current exit terminal during positive half-cycle surge	Connected to ground or return path; bidirectional operation means A/K roles reverse on negative surges.

Key Features

Feature	Design Value
Bidirectional crowbar protection	Clamps both polarities of telecom surges without external polarity management; eliminates need for dual-device configurations.
Fail-safe short-circuit mode	End-of-life failure results in low-resistance short - prevents open-circuit exposure of downstream circuitry to overvoltage.
Low V_BO/V_RM ratio (1.275)	Narrow margin between stand-off and trigger voltage improves response speed while maintaining noise immunity.
UL497B recognized & GR-1089 compliant	Pre-qualified for telecom infrastructure use; reduces certification effort for central office and CPE equipment.

Applications

DSL Line Interface Protection

Central Office Line Card

Use Scenario: Protecting ADSL2+ subscriber line interface cards against lightning-induced surges on twisted-pair copper loops.

IC Role / Device Role / Timing Role: Primary crowbar protector placed upstream of line driver/receiver ICs; triggers within nanoseconds to shunt surge energy to ground.

Use Value: 12 pF capacitance avoids signal attenuation above 2.2 MHz, preserving full ADSL2+ data throughput without equalization penalty.

Use Scenario: Front-end surge suppression on carrier-grade DSLAM line cards handling multiple simultaneous subscriber lines.

IC Role / Device Role / Timing Role: First-stage protection element per line pair; coordinates with secondary TVS diodes and series impedance for multi-level GR-1089 compliance.

Use Value: 80 A (10/1000 µs) rating supports repeated surge events in high-exposure outdoor cabinets without parameter drift.

VoIP Gateway Protection

Fax/Modem Terminal Interface

Use Scenario: Surge hardening of analog telephone interface (FXS/FXO) in enterprise VoIP gateways exposed to PSTN line transients.

IC Role / Device Role / Timing Role: Bidirectional crowbar across tip/ring lines; clamps common-mode surges while maintaining DC feed integrity.

Use Value: ≤2 µA leakage ensures minimal impact on loop current monitoring and battery feed regulation circuits.

Use Scenario: Overvoltage protection for legacy fax machines and dial-up modems connected to public telephone networks.

IC Role / Device Role / Timing Role: Standalone surge arrestor mounted directly at RJ11 connector; provides fail-safe short-circuit behavior per UL1459.

Use Value: UL94 V0 epoxy housing and DO-214AA package enable direct PCB mounting in compact consumer enclosures.

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
Littelfuse SPA1202	Unidirectional, 120 V V_RM, 150 V V_BO, 100 A I_PP, 25 pF capacitance	Requires dual-device configuration for bidirectional protection; higher capacitance limits ADSL2+ use	Select only when lower clamping voltage and unidirectional architecture align with system grounding scheme
Bourns TISP4240M3JR-S	Bidirectional, 240 V V_RM, 320 V V_BO, 100 A I_PP, 20 pF capacitance	Higher V_BO delays clamping onset; 20 pF may degrade >1.5 MHz signal fidelity in ADSL2+	Preferable for 240 V nominal systems requiring higher surge margin, but verify signal integrity at target data rates

Compared with SPA1202 and TISP4240M3JR-S, the SMP80MC-200 delivers optimal balance of low capacitance (12 pF), precise 200 V stand-off, and fail-safe short-circuit behavior - making it uniquely suited for space-constrained, high-speed telecom line interfaces where signal fidelity and safety compliance are co-primary requirements.

Availability

SMP80MC-200 is available at Aetrix Electronics and suitable for DSL line interface protection, central office line card design, and VoIP gateway development requiring stable component supply and long-term lifecycle support.

Supply support for SMP80MC-200 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, designing and manufacturing silicon solutions for automotive, industrial, and communications markets since 1987.

The SMP80MC series belongs to ST's Trisil™ transient protection product line, engineered specifically for telecom infrastructure applications demanding fail-safe crowbar behavior, low capacitance, and compliance with GR-1089, ITU-T K20/K21, and IEC 61000-4-5 standards.

FAQ

What is the fail-safe behavior of SMP80MC-200 under end-of-life conditions?

The SMP80MC-200 enters a permanent short-circuit state when degraded by repeated or excessive surge stress. This fail-safe mode ensures downstream circuitry remains protected by diverting overvoltage to ground rather than exposing it to open-circuit failure - a key requirement for UL60950 and IEC 950 safety certification.

Can SMP80MC-200 be used in AC mains protection applications?

No. The SMP80MC-200 is rated for telecom line protection only, with maximum continuous reverse voltage of 200 V and thermal limits unsuitable for 230 VAC or 120 VAC mains environments. Its design targets low-capacitance, high-speed signal lines - not high-energy AC power circuits.

How does the 12 pF capacitance affect ADSL2+ performance?

At 12 pF, the SMP80MC-200 introduces negligible insertion loss up to 30 MHz, preserving the full 2.2 MHz upstream and 17 MHz downstream bandwidth of ADSL2+. Measured signal distortion remains below -40 dBc, ensuring bit-error rates meet G.992.3/G.992.5 specifications without requiring additional equalization.

Is SMP80MC-200 RoHS and REACH compliant?

Yes. The SMP80MC-200 uses lead-free terminations and UL94 V0 epoxy conforming to RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. STMicroelectronics documents full material composition and compliance status in its ECOPACK® reports available at www.st.com.

SMP80MC-200 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: DO-214AA, SMB

Series:: SMP, TRISIL™

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Breakover:: 255V

Voltage - Off State:: 200V

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-200 FAQ

1.How can I place an order for SMP80MC-200 through Aetrix?

Please submit a Request for Quotation (RFQ) for SMP80MC-200 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-200 reliable?

The price and inventory of SMP80MC-200 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP80MC-200 is usually 5 days.

3.What payment methods are accepted for SMP80MC-200?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP80MC-200 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SMP80MC-200?

SMP80MC-200 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SMP80MC-200 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-200?

For technical support, including SMP80MC-200 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP80MC-200 requirements.

6.How does Aetrix verify that SMP80MC-200 is sourced from the original manufacturer or authorized distributors?

All SMP80MC-200 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-200 meets industry standards.

7.What is the process for return or replacement of SMP80MC-200?

All SMP80MC-200 units undergo pre-shipment inspection (PSI). If there is an issue with SMP80MC-200, 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-200 part is unused and in its original packaging.

Return procedure for SMP80MC-200:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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