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STMicroelectronics SMP30-62
- Part No.:
- SMP30-62
- Manufacturer:
- STMicroelectronics
- Category:
- Thyristors
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMP30-62.pdf
- Description:
- THYRISTOR 62V 70A DO-214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,970
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Product details
Overview
SMP30-62 from STMicroelectronics is a bidirectional Trisil™ crowbar protection device designed for telecom line surge suppression, with 62 V stand-off voltage (VRM), 85 V dynamic breakover voltage (VBO), 30 A repetitive peak pulse current (10/1000 µs), and low 20 pF capacitance at 50 V - deployed in analog/digital line cards (xDSL, T1/E1) and terminal equipment.
For engineers reviewing the SMP30-62 datasheet, SMP30-62 pinout, SMP30-62 application, or SMP30-62 equivalent, key selection criteria include fail-safe short-circuit behavior under overvoltage, UL497B/UL94 V0 certification, compliance with GR-1089 Core and ITU-T K20/K21 lightning standards, and SMA (DO-214AC) surface-mount compatibility.
Technical Context
The SMP30-62 operates as a voltage-triggered bidirectional thyristor, latching into low-impedance conduction once VBO (85 V typ.) is exceeded and maintaining conduction until current falls below IH (150 mA min.). Its fail-safe mode ensures permanent short-circuit behavior during end-of-life overstress, eliminating open-circuit failure risk.
Designed specifically for telecom AC-line transient protection, it meets multi-standard surge requirements including FCC Part 68 Type A (1500 V, 10/160 µs), IEC61000-4-5 (4 kV, 10/700 µs), and ITU-T K20 (6 kV, 10/700 µs), with thermal resistance Rth(j-a) = 120 °C/W on FR4 PCB per recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 56 V max - defines maximum continuous reverse voltage before leakage exceeds 2 µA |
| Dynamic Breakover Voltage (VBO) | 85 V max - trigger threshold under transient surge (10/1000 µs), enabling fast crowbar action |
| Holding Current (IH) | 150 mA min - minimum current required to sustain conduction after triggering |
| Repetitive Peak Pulse Current (IPP) | 30 A @ 10/1000 µs - rated surge handling capacity for repeated lightning transients |
| Junction Capacitance (C) | 20 pF typ. @ 50 V - low signal distortion for high-speed telecom lines (e.g., xDSL) |
| Leakage Current (IRM) | 2 µA max @ VRM - ensures minimal standby power loss and signal integrity |
| Package | SMA (DO-214AC) - JEDEC-registered surface-mount package with UL94 V0 epoxy and lead-free finish |
Pinout & Package
SMP30-62 uses the SMA (DO-214AC) package: 2-terminal bidirectional device with cathode/anode symmetry; no polarity marking required due to inherent bidirectionality. Dimensions: D = 2.25–2.90 mm, E = 4.80–5.35 mm, L = 0.75–1.50 mm, weight = 0.06 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional main terminals | Interchangeable terminals; conduction initiates when voltage magnitude exceeds |VBO| in either polarity |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe short-circuit mode | Guarantees robust protection even after end-of-life overstress - no open-circuit failure risk |
| UL497B and UL94 V0 certified | Validated for telecom surge protection and flammability safety in end-equipment certifications |
| Low 20 pF capacitance @ 50 V | Preserves signal integrity on high-bandwidth lines (e.g., ADSL2+, VDSL2) |
| JEDEC DO-214AC (SMA) package | Standardized SMT footprint compatible with automated assembly and IPC-7351 guidelines |
| No ageing degradation | Maintains stable VBO and leakage over lifetime - unlike MOVs or GDTs |
Applications
| Analog Line Card Protection | Digital Subscriber Line (xDSL) |
|---|---|
Use Scenario: Protecting POTS interface circuits in central office line cards against lightning-induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Bidirectional crowbar clamping device that triggers within nanoseconds to shunt >3 kV transients to ground. Use Value: Enables GR-1089 Core First Level compliance (2500 V, 2/10 µs) with only 20 Ω series resistor. | Use Scenario: Front-end surge protection for ADSL2+ modems and DSLAM line drivers operating up to 30 MHz. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor placed before line driver ICs to preserve high-frequency signal fidelity. Use Value: 20 pF capacitance minimizes insertion loss and echo distortion while meeting ITU-T K21 (1500 V, 10/700 µs). |
| T1/E1 Channel Interface | FCC Part 68 Terminal Equipment |
Use Scenario: Protecting balanced T1 (1.544 Mbps) or E1 (2.048 Mbps) data links in enterprise PBX and multiplexers. IC Role / Device Role / Timing Role: Fast-acting crowbar that clamps common-mode surges without disrupting differential signaling integrity. Use Value: 30 A IPP rating supports GR-1089 Intra-building (1500 V, 2/10 µs) with <10 Ω series impedance. | Use Scenario: Surge protection in residential telephone handsets, fax machines, and VoIP adapters connected to PSTN lines. IC Role / Device Role / Timing Role: Primary overvoltage protector certified to FCC Part 68 Lightning Surge Type A (1500 V, 10/160 µs). Use Value: UL497B listing and fail-safe behavior ensure regulatory acceptance and field reliability in consumer telecom devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar telecom crowbar protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SP3062 | Same 62 V VRM, but higher VBO (90 V typ.), lower C (15 pF @ 50 V), and 25 A IPP rating | Preferred where lower capacitance is critical (e.g., VDSL2 >17 MHz), but requires revalidation of hold-on margin | Select if system design prioritizes signal bandwidth over surge margin |
| Bourns 2062-62 | 62 V VRM, 88 V VBO, 30 A IPP, but higher IR (5 µA max) and no UL497B listing | Suitable for non-certified industrial telecom gear; not approved for FCC Part 68 or UL1950 end-equipment | Select only for cost-sensitive internal systems lacking regulatory certification requirements |
Compared with SP3062 and 2062-62, SMP30-62 offers superior regulatory alignment (UL497B, UL94 V0), tighter VBO consistency (±3 V), and proven fail-safe behavior - making it optimal for certified telecom infrastructure where safety and standard compliance are mandatory.
Availability
SMP30-62 is available at Aetrix Electronics and suitable for analog line card protection, xDSL front-end surge suppression, and FCC Part 68 terminal equipment requiring stable component supply and long-term lifecycle continuity.
Supply support for SMP30-62 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 microcontrollers, power ICs, sensors, and protection devices for industrial, automotive, and communications markets.
The SMP30 series belongs to ST's Trisil™ telecom protection product line, engineered specifically to replace gas discharge tubes and MOVs in regulated telecom interfaces where fail-safe operation, low capacitance, and multi-standard compliance are essential.
FAQ
What is the fail-safe behavior of SMP30-62 under catastrophic overvoltage?
Under irreversible overstress, SMP30-62 enters permanent short-circuit mode - confirmed by IFS rating of 2.5 kA (8/20 µs). This eliminates open-circuit failure, ensuring downstream circuitry remains protected even after device end-of-life, a critical requirement for UL1950 and IEC61000-4-5 compliance.
Can SMP30-62 be used in DC power line protection?
No - SMP30-62 is optimized for AC-coupled telecom line protection. Its holding current (150 mA min.) and lack of DC hold capability make it unsuitable for unidirectional DC bus clamping; use dedicated TVS diodes or resettable fuses for DC power rails instead.
How does SMP30-62 compare to MOV-based protection in telecom designs?
SMP30-62 offers faster response (<100 ns vs. ~500 ns for MOVs), no ageing drift, lower capacitance (20 pF vs. 100–500 pF), and guaranteed fail-safe shorting - whereas MOVs degrade with repeated surges and may fail open, compromising protection integrity in long-lifecycle telecom gear.
Is the SMA package of SMP30-62 compatible with reflow soldering per J-STD-020?
Yes - SMP30-62's SMA package is qualified for lead-free reflow per J-STD-020D, with maximum lead temperature of 260 °C for 10 seconds. Thermal resistance Rth(j-l) = 30 °C/W ensures reliable heat dissipation during surge events when mounted per ST's recommended FR4 footprint.
SMP30-62 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AC, SMA
- Series:
- SMP, TRISIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Breakover:
- 82V
- Voltage - Off State:
- 62V
- 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:
- 40pF
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMP30-62 FAQ
1.How can I place an order for SMP30-62 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP30-62 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 SMP30-62 reliable?
The price and inventory of SMP30-62 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP30-62 is usually 5 days.
3.What payment methods are accepted for SMP30-62?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP30-62 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP30-62?
SMP30-62 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP30-62 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 SMP30-62?
For technical support, including SMP30-62 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP30-62 requirements.
6.How does Aetrix verify that SMP30-62 is sourced from the original manufacturer or authorized distributors?
All SMP30-62 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 SMP30-62 meets industry standards.
7.What is the process for return or replacement of SMP30-62?
All SMP30-62 units undergo pre-shipment inspection (PSI). If there is an issue with SMP30-62, 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 SMP30-62 part is unused and in its original packaging.
Return procedure for SMP30-62:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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