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STMicroelectronics SMP30-130
- Part No.:
- SMP30-130
- Manufacturer:
- STMicroelectronics
- Category:
- Thyristors
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMP30-130.pdf
- Description:
- THYRISTOR 130V 70A DO-214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,873
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Product details
Overview
SMP30-130 from STMicroelectronics is a bidirectional Trisil™ crowbar protection device designed for telecom line surge suppression in analog/digital xDSL, T1/E1, and ISDN interfaces. It features a 130 V stand-off voltage (VRM), 173 V dynamic breakover voltage (VBO), 14 mA minimum holding current (IH), 30 A repetitive peak pulse current (10/1000 µs), and 30 pF typical capacitance at 50 V - enabling low-distortion, fail-safe short-circuit clamping in central office and terminal equipment.
For engineers reviewing the SMP30-130 datasheet, SMP30-130 pinout, SMP30-130 application, or SMP30-130 equivalent, this device is selected for telecom-grade transient protection where UL497B, GR-1089 Core, ITU-T K20/K21, and FCC Part 68 compliance are required - with emphasis on low capacitance, stable breakover threshold, and fail-safe short-circuit behavior under lightning surges.
Technical Context
The SMP30-130 operates as a voltage-triggered thyristor-based crowbar, latching into low-impedance conduction once VBO (173 V) is exceeded and maintaining conduction until current falls below IH (14 mA min). Its bidirectional symmetry enables AC line protection without polarity constraints.
It delivers robust surge handling per IEC61000-4-5 (4 kV, 10/700 µs), ITU-T K20 (6 kV, 10/700 µs), and FCC Part 68 Type A (1.5 kV, 10/160 µs), supported by thermal design validated to 150 °C junction temperature and 120 °C/W junction-to-ambient resistance with recommended FR4 footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 117 V max - defines maximum continuous reverse voltage before leakage exceeds 2 µA; sets operating margin below breakover. |
| Dynamic Breakover Voltage (VBO) | 173 V max - precise voltage threshold at which device triggers into low-impedance state during fast transients. |
| Holding Current (IH) | 14 mA min - minimum current required to sustain conduction after triggering; ensures reliable latch-down during surge decay. |
| Repetitive Peak Pulse Current (IPP) | 30 A @ 10/1000 µs - validated surge current capacity for repeated lightning-induced transients without degradation. |
| Junction Capacitance (C) | 30 pF typ. @ 50 V - low signal distortion on high-speed telecom lines (e.g., xDSL up to 30 MHz). |
| Leakage Current (IRM) | 2 µA max @ VRM - minimal standby power loss and negligible loading on protected line under normal operation. |
| Package | SMA (DO-214AC) - JEDEC-standard surface-mount package with UL94 V0 epoxy and lead-free construction. |
Pinout & Package
SMP30-130 uses the SMA (DO-214AC) package: molded epoxy body, cathode band marking, 2-terminal symmetrical configuration, compatible with standard reflow profiles (260 °C max lead temperature, 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional trigger electrode | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity assignment required. |
| Cathode Band (marking) | Reference orientation indicator | Identifies terminal 1 per DO-214AC mechanical drawing; used for consistent PCB layout and automated assembly alignment. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe short-circuit mode | Latches into hard short upon overvoltage, preventing open-circuit failure and ensuring continued protection even after multiple surges. |
| UL497B certification (E136224) | Validated for primary-side telecom surge protection in FCC Part 68-compliant equipment without external coordination components. |
| Low 30 pF capacitance @ 50 V | Preserves signal integrity on broadband lines (e.g., ADSL2+, VDSL2) with <0.1 dB insertion loss up to 30 MHz. |
| GR-1089 Core Level 1 compliance | Withstands 2.5 kV (1000 A, 2/10 µs) and 2500 V (500 A, 10/1000 µs) surges - meets telco central office front-end requirements. |
| UL94 V0 epoxy housing | Self-extinguishing encapsulation prevents flame propagation in densely packed line card assemblies. |
Applications
| DSL Line Card Protection | T1/E1 Interface Protection |
|---|---|
Use Scenario: Protects copper-pair DSLAM and CPE line cards against induced lightning surges and AC power cross-talk. IC Role / Device Role / Timing Role: Bidirectional crowbar clamping device placed across tip/ring before line transformer or codec input. Use Value: Maintains <30 pF loading to preserve ADSL2+ frequency response while guaranteeing fail-safe short-circuit behavior per GR-1089. |
Use Scenario: Shields T1/E1 framer ICs and transformers in carrier-grade multiplexers and channel banks. IC Role / Device Role / Timing Role: Primary surge suppressor on balanced 100 Ω differential pairs, coordinated with 10 Ω series resistors. Use Value: Enables 2.5 kV (2/10 µs) surge immunity without degrading jitter or return loss - validated per Telcordia GR-1089 Core. |
| ISDN Terminal Protection | Central Office Line Card Protection |
Use Scenario: Integrated into BRI/PCI terminal equipment (phones, fax, ISDN modems) for subscriber-side surge hardening. IC Role / Device Role / Timing Role: Standalone crowbar on U-interface (2B1Q) lines, upstream of hybrid circuit and SLIC. Use Value: Provides UL1950/IEC60950-1 compliance with single-device solution and no external timing components. |
Use Scenario: Front-end protection on digital line cards in Class 5 switches and remote terminals exposed to outdoor cable plant. IC Role / Device Role / Timing Role: First-stage protector on each line pair, followed by gas discharge tube (GDT) and PTC coordination. Use Value: Delivers 5 kV (2/10 µs) second-level surge capability per GR-1089 while surviving >1000 surges at rated IPP. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar telecom crowbar protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM30-130 (Littelfuse) | 130 V VRM, 175 V VBO, 30 A IPP, but 45 pF capacitance @ 50 V - 50% higher than SMP30-130. | Less suitable for >10 MHz DSL applications due to higher capacitive loading and degraded return loss. | Select SMP30-130 when signal bandwidth preservation is critical; SM30-130 may be acceptable for voice-grade T1 only. |
| P6SMB130A (ON Semiconductor) | Unidirectional TVS diode, 130 V VBR, 32.3 V clamping @ 10 A, no holding current or latch behavior. | Cannot provide fail-safe short-circuit mode; requires external current-limiting resistor and offers no crowbar latching. | Choose SMP30-130 for guaranteed fail-safe operation and self-sustaining clamping; P6SMB130A suits cost-sensitive, non-fail-safe designs. |
Compared with SM30-130 and P6SMB130A, SMP30-130 uniquely combines low 30 pF capacitance, precise 173 V VBO, and intrinsic fail-safe latching - making it optimal for broadband telecom line cards requiring both signal fidelity and unconditional surge survival.
Availability
SMP30-130 is available at Aetrix Electronics and suitable for DSL line cards, T1/E1 interface modules, and ISDN terminal equipment requiring stable component supply, long-lifecycle support, and certified telecom surge protection.
Supply support for SMP30-130 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 automotive, industrial, and communications ICs and discrete protection devices.
The SMP30 series belongs to ST's Trisil™ telecom protection portfolio, engineered specifically for fail-safe, bidirectional crowbar performance in GR-1089- and ITU-T-compliant telephony infrastructure.
FAQ
What is the fail-safe behavior of SMP30-130 during surge events?
The SMP30-130 enters a low-impedance short-circuit state when triggered and remains latched until current drops below its 14 mA minimum holding current. Unlike TVS diodes, it does not reset automatically - ensuring continuous protection even after multiple surges and eliminating risk of open-circuit failure.
Can SMP30-130 be used without external current-limiting resistors?
No - SMP30-130 requires a series current-limiting resistor to ensure post-trigger current remains above IH (14 mA) during surge decay but below IFS (2.5 kA) to avoid destructive fusing. Typical values range from 10 Ω to 100 Ω depending on line impedance and surge waveform.
How does SMP30-130 differ from standard TVS diodes in telecom protection?
TVS diodes clamp transient voltage then reset; SMP30-130 acts as a crowbar - triggering at VBO and latching into short-circuit mode. This provides superior energy handling (30 A IPP vs. ~10–20 A for same-size TVS) and inherent fail-safe behavior mandated by GR-1089 Core Level 1.
Is SMP30-130 RoHS and REACH compliant?
Yes - SMP30-130 carries ST's ECOPACK®2 designation, confirming lead-free terminations, halogen-free molding compound, and full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006.
SMP30-130 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AC, SMA
- Series:
- SMP, TRISIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Breakover:
- 176V
- Voltage - Off State:
- 130V
- 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:
- 30pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMP30-130 FAQ
1.How can I place an order for SMP30-130 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP30-130 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 SMP30-130 reliable?
The price and inventory of SMP30-130 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP30-130 is usually 5 days.
3.What payment methods are accepted for SMP30-130?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP30-130 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP30-130?
SMP30-130 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP30-130 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 SMP30-130?
For technical support, including SMP30-130 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP30-130 requirements.
6.How does Aetrix verify that SMP30-130 is sourced from the original manufacturer or authorized distributors?
All SMP30-130 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 SMP30-130 meets industry standards.
7.What is the process for return or replacement of SMP30-130?
All SMP30-130 units undergo pre-shipment inspection (PSI). If there is an issue with SMP30-130, 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 SMP30-130 part is unused and in its original packaging.
Return procedure for SMP30-130:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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