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STMicroelectronics SMP30-200
- Part No.:
- SMP30-200
- Manufacturer:
- STMicroelectronics
- Category:
- Thyristors
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMP30-200.pdf
- Description:
- THYRISTOR 200V 70A DO-214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,314
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Product details
Overview
SMP30-200 from STMicroelectronics is a bidirectional Trisil™ thyristor surge protection device (SPD) designed for primary overvoltage crowbar clamping on telecom line interfaces. It features a 200 V stand-off voltage (VRM), 262 V dynamic breakover voltage (VBO), 12 mA minimum holding current (IH), 25 pF typical capacitance at 50 V, and 30 A repetitive peak pulse current (10/1000 µs). It is used in xDSL line cards and central office equipment to meet GR-1089 Core and ITU-T K20/K21 lightning immunity requirements.
For engineers reviewing the SMP30-200 datasheet, SMP30-200 pinout, SMP30-200 application, or SMP30-200 equivalent, this device is selected for telecom-grade fail-safe short-circuit protection where low capacitance, stable VBO, and UL497B/UL94 V0 compliance are mandatory - especially in analog/digital subscriber line interface circuits requiring robust 10/1000 µs surge handling without degradation.
Technical Context
The SMP30-200 operates as a voltage-triggered bidirectional thyristor that latches into low-impedance conduction upon exceeding its dynamic breakover voltage (262 V), sustaining conduction until current falls below 12 mA holding threshold. Its fail-safe short-circuit mode ensures continued protection even after multiple surges.
Designed specifically for telecom line protection, it meets GR-1089 Core first-level (2500 V, 10/1000 µs, 500 A) and ITU-T K20 (6000 V, 10/700 µs) standards when used with appropriate series impedance - enabled by its 25 pF capacitance and 2 µA max leakage at 180 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 200 V - Maximum continuous reverse voltage before triggering; sets operating margin above nominal line voltage. |
| Dynamic Breakover Voltage (VBO) | 262 V typ. - Voltage at which device triggers into crowbar mode under transient stress; defines clamping onset point. |
| Holding Current (IH) | 12 mA min. - Minimum current required to maintain conduction; ensures reliable latch-on during surge decay. |
| Capacitance (C) | 25 pF typ. @ 50 V - Low signal-line loading for high-speed xDSL and ISDN interfaces without bandwidth degradation. |
| Repetitive Peak Pulse Current (IPP) | 30 A @ 10/1000 µs - Sustained surge-handling capability per IEC61000-4-5 Level 3; validates multi-event robustness. |
| Leakage Current (IRM) | 2 µA max. @ 180 V - Minimal DC loading on protected line; preserves signal integrity and power budget. |
| Package | SMA (DO-214AC) - JEDEC-standard surface-mount package with UL94 V0 epoxy and lead-free finish. |
Pinout & Package
The SMP30-200 is housed in an SMA (DO-214AC) package with two terminals: anode and cathode. The device is symmetrical and bidirectional; either terminal may serve as input or return depending on circuit topology. Thermal resistance is 30 °C/W junction-to-leads and 120 °C/W junction-to-ambient (with recommended FR4 footprint).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Triggered conduction path entry | Terminal where voltage exceeds breakover threshold relative to cathode; initiates crowbar action. |
| Cathode (K) | Triggered conduction path exit | Reference terminal for breakover detection; completes low-impedance path to ground or return during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional crowbar operation | Enables symmetric protection of AC-coupled telecom lines without polarity constraints or external diodes. |
| Fail-safe short-circuit mode | Guarantees continued protection after end-of-life wear-out - critical for telecom infrastructure uptime. |
| UL497B and UL94 V0 certified | Validates suitability for FCC Part 68-compliant telephone line interfaces and flame-retardant PCB mounting. |
| Optimized for GR-1089 and ITU-T K20/K21 | Meets core lightning surge immunity requirements for central office and customer premises equipment. |
Applications
| DSL Line Card Protection | T1/E1 Interface Protection |
|---|---|
Use Scenario: Protecting ADSL/VDSL line drivers and receivers from induced lightning surges on twisted-pair copper loops. IC Role / Device Role / Timing Role: Primary crowbar clamping device placed across line pair upstream of transformer or amplifier. Use Value: 25 pF capacitance avoids signal distortion up to 30 MHz; 30 A IPP withstands repeated 10/1000 µs surges per GR-1089 Core Level 1. | Use Scenario: Safeguarding T1/E1 framer ICs and line transceivers against longitudinal surges in digital trunk interfaces. IC Role / Device Role / Timing Role: Bidirectional overvoltage clamp on balanced differential pairs prior to isolation transformer. Use Value: 200 V VRM provides headroom above ±12 V T1 signaling envelope; UL497B approval satisfies telco certification mandates. |
| ISDN Terminal Protection | Central Office Line Card |
Use Scenario: Shielding BRI/ PRI S/T interface circuits in fax machines, modems, and ISDN phones from fast transients. IC Role / Device Role / Timing Role: First-stage protection element directly at connector, shunting energy before conditioning filters. Use Value: 2 µA leakage preserves low-power standby operation; symmetrical structure eliminates need for dual-device placement. | Use Scenario: Front-end surge suppression on carrier-grade line cards handling dozens of subscriber lines. IC Role / Device Role / Timing Role: Fail-safe crowbar device integrated into modular protection array with discrete resistors and gas discharge tubes. Use Value: 150 °C max junction temperature and 120 °C/W Rth(j-a) support high-density board layouts with minimal thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar telecom line protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SPA1002 | Unidirectional, 100 V standoff, 150 V VBR, 100 A IPP (8/20 µs), TO-220 package | Requires external back-to-back configuration for bidirectional use; higher capacitance (~40 pF) | Select when higher single-pulse energy rating is needed and board space allows TO-220 mounting. |
| Bourns TISP4240H3BJR-S | Bidirectional, 240 V standoff, 320 V VBO, 100 A IPP (10/1000 µs), SOT-23 package | Higher VBO increases clamping voltage; lower IH (5 mA) reduces latch reliability under low-current surges | Choose for space-constrained designs where 240 V VRM matches system margin, but verify hold-on behavior under worst-case load decay. |
Compared with SMP30-200, SPA1002 offers higher surge current but lacks native bidirectionality and requires larger footprint, while TISP4240H3BJR-S saves space but raises clamping voltage and reduces holding margin - making SMP30-200 optimal for balanced telecom line protection where 200 V standoff, 262 V VBO, and fail-safe shorting are design-critical.
Availability
SMP30-200 is available at Aetrix Electronics and suitable for DSL line cards, T1/E1 interface modules, and ISDN terminal equipment requiring stable component supply, long-term lifecycle assurance, and consistent surge performance across production batches.
Supply support for SMP30-200 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, specializing in automotive, industrial, and power discrete solutions with strong IP in protection devices and analog ICs.
The SMP30 series belongs to ST's Trisil™ telecom protection portfolio, engineered specifically for fail-safe, bidirectional crowbar clamping in voice/data line interfaces subject to lightning and AC power cross-talk.
FAQ
What is the fail-safe behavior of SMP30-200 after end-of-life?
Upon reaching end-of-life due to cumulative surge stress, SMP30-200 fails into a permanent low-resistance short-circuit state - maintaining line protection rather than opening and exposing downstream circuitry. This behavior is inherent to Trisil™ thyristor physics and verified per UL497B file E136224.
Can SMP30-200 be used in DC power rail protection?
No - SMP30-200 is designed exclusively for AC-coupled telecom line protection. Its bidirectional trigger mechanism and lack of DC hold-off rating make it unsuitable for unidirectional DC rails; using it there risks unintended triggering or thermal runaway due to insufficient current decay below 12 mA holding threshold.
How does SMP30-200 compare to MOV-based protection in telecom applications?
SMP30-200 offers faster response (<100 ns), lower clamping voltage variation, no aging-related parameter drift, and guaranteed fail-safe shorting - unlike MOVs, which degrade with each surge and may fail open or short unpredictably. Its 25 pF capacitance also avoids signal integrity issues common with high-capacitance MOVs in broadband lines.
Is SMP30-200 RoHS and REACH compliant?
Yes - SMP30-200 carries STMicroelectronics' ECOPACK® designation for lead-free packaging and complies with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Full compliance documentation is available via ST's quality portal under order code SMP30-200.
SMP30-200 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AC, SMA
- Series:
- SMP, TRISIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Breakover:
- 267V
- Voltage - Off State:
- 200V
- Voltage - On State:
- -
- Current - Peak Pulse (8/20µs):
- 70 A
- Current - Peak Pulse (10/1000µs):
- 30 A
- Current - Hold (Ih):
- 150 mA
- Number of Elements:
- 1
- Capacitance:
- 25pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMP30-200 FAQ
1.How can I place an order for SMP30-200 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP30-200 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 SMP30-200 reliable?
The price and inventory of SMP30-200 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP30-200 is usually 5 days.
3.What payment methods are accepted for SMP30-200?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP30-200 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP30-200?
SMP30-200 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP30-200 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 SMP30-200?
For technical support, including SMP30-200 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP30-200 requirements.
6.How does Aetrix verify that SMP30-200 is sourced from the original manufacturer or authorized distributors?
All SMP30-200 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 SMP30-200 meets industry standards.
7.What is the process for return or replacement of SMP30-200?
All SMP30-200 units undergo pre-shipment inspection (PSI). If there is an issue with SMP30-200, 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 SMP30-200 part is unused and in its original packaging.
Return procedure for SMP30-200:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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