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STMicroelectronics SMP80MC-160
- Part No.:
- SMP80MC-160
- Manufacturer:
- STMicroelectronics
- Category:
- Thyristors
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMP80MC-160.pdf
- Description:
- THYRISTOR 160V 200A DO-214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,264
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Product details
Overview
SMP80MC-160 from STMicroelectronics is a bidirectional Trisil™ transient voltage surge suppressor (TVSS) designed for primary overvoltage protection in telecom line interfaces. It provides crowbar-type clamping at 160 V stand-off voltage, supports 80 A repetitive peak pulse current (10/1000 µs), exhibits micro capacitance of 12 pF at 50 V, and features low leakage (≤2 µA) - enabling use in ADSL2+/VDSL2 front-end protection circuits without signal distortion.
For engineers reviewing the SMP80MC-160 datasheet, SMP80MC-160 pinout, SMP80MC-160 application, or SMP80MC-160 equivalent, this device is selected for telecom-grade lightning surge compliance (GR-1089 Core, ITU-T K20/K21, IEC 61000-4-5), fail-safe short-circuit behavior under overstress, and JEDEC DO-214AA (SMB) surface-mount compatibility in space-constrained DSLAM and central office line card designs.
Technical Context
The SMP80MC-160 operates as a voltage-triggered bidirectional thyristor-based crowbar device, entering low-impedance conduction when transient voltage exceeds its dynamic breakover voltage (205 V typical). Its fail-safe short-circuit mode ensures continued protection even after multiple surges, unlike varistors or TVS diodes that degrade.
It delivers precise coordination with series impedance (e.g., 5–25 Ω resistors) to meet GR-1089 first-level (2500 V, 10/1000 µs) and ITU-T K21 (6000 V, 10/700 µs) requirements. Thermal resistance (Rth(j-a) = 100 °C/W) and junction temperature range (−40 to +150 °C) support reliable operation in unventilated telecom enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 144 V max - defines maximum continuous AC/DC line voltage before triggering; sets operating margin for 110–130 VAC telecom systems. |
| Breakover Voltage (VBO) | 205 V typ - dynamic threshold at which device latches into low-impedance state during surge; enables fast response to lightning transients. |
| Repetitive Peak Pulse Current (IPP) | 80 A @ 10/1000 µs - sustains repeated telecom-grade surges without degradation; validated per GR-1089 Core first-level testing. |
| Junction Capacitance (C) | 12 pF @ 50 V - preserves high-frequency signal integrity up to 30 MHz; critical for ADSL2+ (up to 2.2 MHz) and VDSL2 (up to 17 MHz) data paths. |
| Holding Current (IH) | 150 mA min - ensures stable latched conduction until line current drops below threshold; prevents premature recovery during sustained overvoltage. |
| Leakage Current (IR) | 2 µA max @ VRM - minimizes standby power loss and avoids false triggering in low-power line interface ICs. |
| Package | DO-214AA (SMB) - JEDEC-standardized surface-mount outline with 5.1–5.6 mm body width; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
Package: DO-214AA (SMB), epoxy-molded, lead-free, UL94 V0 rated. Cathode bar marking indicates polarity for unidirectional variants; SMP80MC-160 is bidirectional and lacks cathode bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive surge path terminal | Connects to protected line (e.g., tip or ring); symmetric with Cathode for bidirectional operation. |
| Cathode (K) | Negative surge path terminal | Connects to return/reference (e.g., ground or common rail); interchangeable with Anode due to bidirectional symmetry. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional crowbar action | Clamps positive and negative transients equally without polarity-sensitive placement; simplifies PCB layout in balanced telecom lines. |
| Fail-safe short-circuit mode | Guarantees permanent low-impedance path upon end-of-life; prevents open-circuit failure that would leave downstream circuitry unprotected. |
| Micro capacitance (12 pF) | Enables direct placement across differential pairs without degrading insertion loss or return loss in ADSL2+/VDSL2 channels. |
| Low VBO / VR ratio (1.42) | Ensures tight clamping margin - only ~42% over-voltage headroom required before conduction - improving protection robustness vs. MOVs. |
| UL497B recognition | Validated for telecom primary protection per UL Standard 497B; eliminates need for additional certification testing in end equipment. |
Applications
| DSL Line Card Protection | Central Office Interface |
|---|---|
|
Use Scenario: Protecting ADSL2+/VDSL2 line drivers and receivers on multi-port DSLAM cards against lightning-induced surges on copper loops. IC Role / Device Role: Primary crowbar protector placed upstream of line transformer and integrated line driver IC (e.g., ST7570). Use Value: 12 pF capacitance avoids signal distortion at 17 MHz, while 80 A IPP withstands GR-1089 first-level surges without derating. |
Use Scenario: Front-end surge suppression in digital loop carrier (DLC) systems handling 100+ subscriber lines in central offices. IC Role / Device Role: First-stage protection element mounted directly on line interface board before hybrid transformers and SLICs. Use Value: Fail-safe short-circuit behavior ensures system remains protected even after repeated 5 kA fault currents, meeting ITU-T K20 reliability mandates. |
| Modem/Fax Terminal Protection | ISDN BRI Interface |
|
Use Scenario: Overvoltage protection for residential analog telephone adapters (ATAs) and VoIP gateways connected to PSTN lines. IC Role / Device Role: Bidirectional surge arrestor bridging tip/ring lines ahead of isolation transformer and codec IC. Use Value: 144 V VRM accommodates 110 VAC nominal line voltage with safety margin; UL497B recognition satisfies regulatory approval. |
Use Scenario: Surge hardening of ISDN Basic Rate Interface (BRI) U-interface transceivers in PBX and NT1 devices. IC Role / Device Role: Primary protection component between line-side connector and TPS65132 or similar ISDN line interface IC. Use Value: 205 V VBO coordinates with 100 Ω series impedance to meet TIA/EIA IS-968 Type A (1500 V, 10/160 µs) requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar telecom surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SPA160 | Unidirectional, 160 V VRWM, 100 A IPP (8/20 µs), 25 pF capacitance | Requires polarity-aware layout; higher capacitance limits use in >10 MHz data lines | Select when higher single-pulse energy rating is needed and polarity can be controlled. |
| Bourns 2061-16-SM | Bidirectional, 160 V VDRM, 60 A IPP (10/1000 µs), 15 pF capacitance, no UL497B recognition | Lacks UL497B listing; lower IPP requires larger series resistor for GR-1089 compliance | Choose where cost sensitivity outweighs certification needs and surge duty is moderate. |
Compared with SMP80MC-160, SPA160 offers higher single-pulse rating but sacrifices bidirectionality and adds signal distortion risk; 2061-16-SM matches bidirectional operation but falls short on surge endurance and regulatory coverage - making SMP80MC-160 optimal for certified, high-reliability telecom infrastructure.
Availability
SMP80MC-160 is available at Aetrix Electronics and suitable for DSLAM line card protection, central office interface hardening, and ISDN BRI surge suppression requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for SMP80MC-160 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, delivering silicon solutions for automotive, industrial, and communications markets since 1987.
The SMP80MC series belongs to ST's Trisil™ family of thyristor-based surge protectors, engineered specifically for fail-safe, high-reliability overvoltage protection in telecom infrastructure equipment compliant with GR-1089, ITU-T K-series, and IEC 61000-4-5 standards.
FAQ
What is the fail-safe behavior of SMP80MC-160 under end-of-life conditions?
The SMP80MC-160 enters a permanent short-circuit state when degraded by repeated surges - maintaining protection continuity rather than failing open. This behavior is inherent to its thyristor structure and verified per IEC 61000-4-5 testing; it eliminates risk of downstream component damage due to undetected protector failure.
Can SMP80MC-160 be used in DC-powered telecom equipment?
Yes - its 144 V VRM rating supports continuous DC line voltages up to 144 V, including −48 V telecom systems with superimposed AC ringing (e.g., 90 Vpk). The bidirectional design handles both polarities of transient energy, and its 150 mA IH ensures reliable latch-off after surge clearance in DC-biased applications.
How does SMP80MC-160 coordinate with series current-limiting resistors?
Coordination is defined in Table 1 of the datasheet: for GR-1089 first-level (2500 V, 10/1000 µs), a 5 Ω resistor limits current to 500 A, allowing the device to clamp at 205 V while surviving 80 A IPP. Resistor value is calculated using Ohm's Law and surge waveform parameters to ensure voltage drop across the resistor keeps total line voltage within safe limits for downstream ICs.
Is SMP80MC-160 RoHS and REACH compliant?
Yes - it carries ECOPACK® Grade 2 certification, confirming lead-free construction and compliance with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The DO-214AA package uses matte tin plating and halogen-free epoxy meeting UL94 V0, with full material declarations available via ST's ECOPACK® portal.
SMP80MC-160 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AA, SMB
- Series:
- SMP, TRISIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Breakover:
- 205V
- Voltage - Off State:
- 160V
- 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-160 FAQ
1.How can I place an order for SMP80MC-160 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP80MC-160 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-160 reliable?
The price and inventory of SMP80MC-160 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP80MC-160 is usually 5 days.
3.What payment methods are accepted for SMP80MC-160?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP80MC-160 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP80MC-160?
SMP80MC-160 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP80MC-160 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-160?
For technical support, including SMP80MC-160 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP80MC-160 requirements.
6.How does Aetrix verify that SMP80MC-160 is sourced from the original manufacturer or authorized distributors?
All SMP80MC-160 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-160 meets industry standards.
7.What is the process for return or replacement of SMP80MC-160?
All SMP80MC-160 units undergo pre-shipment inspection (PSI). If there is an issue with SMP80MC-160, 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-160 part is unused and in its original packaging.
Return procedure for SMP80MC-160:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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