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Taiwan Semiconductor Corporation 1.5SMC10
- Part No.:
- 1.5SMC10
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC10.pdf
- Description:
- 1500W, 10V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,147
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Product details
Overview
1.5SMC10 from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) in DO-214AB (SMC) package, with breakdown voltage 9.0–11.0 V at 1 mA test current, working stand-off voltage 8.10 V, and clamping voltage 15.0 V at 10 A peak impulse current. It protects power rails and I/O lines in industrial DC supplies and telecom interfaces against ESD and lightning-induced surges.
For engineers reviewing the 1.5SMC10 datasheet, 1.5SMC10 pinout, 1.5SMC10 application, or 1.5SMC10 equivalent, this page delivers verified electrical specs, thermal performance, clamping behavior under 10/1000 µs transients, and direct alternatives for surge protection design in automotive body electronics, PoE injectors, and 24 V PLC I/O modules.
Technical Context
The 1.5SMC10 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 9.0–11.0 V breakdown range. Its glass-passivated junction ensures stable VBR drift (<0.073 %/°C) and low leakage (<10 µA at 8.10 V), enabling reliable hold-off in 24 V nominal systems.
With 1500 W peak pulse power rating (1 ms, 10/1000 µs waveform), 15 °C/W junction-to-case thermal resistance, and sub-1 ps response time, the 1.5SMC10 sustains repetitive surge events while maintaining clamping below 15.0 V - critical for safeguarding 12–36 V logic-level interface ICs and microcontroller GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 9.0 V / 11.0 V at 1 mA - defines minimum trigger threshold and maximum variation across temperature and lot |
| VWM | 8.10 V - maximum continuous reverse voltage before leakage exceeds 10 µA; sets safe operating margin below system rail |
| VC @ IPPM | 15.0 V at 10 A - clamping voltage during 10/1000 µs surge; limits stress on downstream 16 V-rated components |
| PPK | 1500 W - peak transient power dissipation capability; supports IEC 61000-4-5 Level 4 (4 kV) surge testing |
| IR @ VWM | <10 µA - ultra-low blocking leakage ensures minimal standby power loss in battery-backed circuits |
| TJ max | +150 °C - enables operation in under-hood automotive or enclosed industrial enclosures without derating |
| RθJC | 15 °C/W - allows efficient heat transfer to PCB copper pour, supporting >100 surges/hour in thermally optimized layouts |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Matte tin-plated leads, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; carries full surge current during clamping |
| Cathode | Protected line input | Connected to the line being protected (e.g., 24 V supply rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term VBR stability and <0.073 %/°C temperature coefficient for precision clamping across -55 to +150 °C |
| Sub-1 ps response time | Clamps ESD transients (IEC 61000-4-2 ±8 kV contact) before sensitive logic inputs experience overvoltage |
| 1500 W peak power rating | Withstands 10/1000 µs surges up to 10 A without degradation - meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, 3b |
| DO-214AB (SMC) package | Standardized footprint compatible with automated SMT placement; 0.210 g mass supports reflow profile control |
| Moisture sensitivity level 1 | No dry-pack or baking required prior to assembly - reduces manufacturing overhead and avoids moisture-related popcorning |
Applications
| Industrial 24 V DC Power Input | Telecom Line Interface Protection |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controllers exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24 V rail and chassis ground to clamp negative transients and limit positive overshoot to ≤15.0 V. Use Value: Prevents latch-up in upstream DC-DC controllers and preserves integrity of 16 V-rated input capacitors and EMI filters. |
Use Scenario: RS-485 data line termination in outdoor base station equipment subject to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired 1.5SMC10 devices (anode-to-ground, cathode-to-line) provide bidirectional clamping when used with CA suffix variant or back-to-back configuration. Use Value: Limits differential voltage across transceiver pins to <30 V during 1 kV/µs transients, satisfying IEC 61000-4-5 compliance. |
| Automotive Body Control Module (BCM) | POE Power Sourcing Equipment (PSE) |
Use Scenario: LIN bus physical layer protection in door module ECUs where battery transients (load dump, jump start) exceed 20 V. IC Role / Device Role / Timing Role: Unidirectional clamping device on LIN line referenced to vehicle ground, activated only during negative-going spikes. Use Value: Maintains signal integrity by limiting voltage excursion to ≤15.0 V, ensuring compatibility with LIN transceivers rated for 18 V absolute max. |
Use Scenario: Secondary-side overvoltage protection on 48 V PoE injector outputs feeding IEEE 802.3af/at PDs. IC Role / Device Role / Timing Role: Standby TVS across output terminals to absorb residual energy from disconnected PDs or cable fault events. Use Value: Clamps flyback energy within 15.0 V window, preventing damage to isolation transformers and secondary-side MOSFETs during hot-swap events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A (Bourns) | Same DO-214AA (SMB) package but lower 600 W PPK; VC = 17.0 V @ 34.6 A; bidirectional standard version available | Lower power handling limits use to sub-2 kV IEC 61000-4-5 environments; SMB footprint requires layout change | Select when space-constrained designs prioritize smaller footprint over 1500 W surge margin |
| 1.5KE10A (ON Semiconductor) | Through-hole DO-15 package; identical VBR (9.5–10.5 V), but higher VC = 17.0 V @ 87.2 A; same 1500 W rating | Requires manual or wave soldering; unsuitable for fully automated SMT lines; better thermal mass for infrequent high-energy events | Choose for legacy through-hole production or where board-level mechanical robustness outweighs SMT efficiency |
Compared with SMBJ10A and 1.5KE10A, the 1.5SMC10 delivers superior surge density (1500 W in compact DO-214AB), tighter VC (15.0 V vs. ≥17.0 V), and SMT-ready manufacturability - making it optimal for high-volume industrial and automotive control units requiring repeatable, automated protection.
Availability
1.5SMC10 is available at Aetrix Electronics and suitable for industrial 24 V power inputs, telecom line interfaces, automotive BCMs, and PoE PSE designs requiring stable component supply with full traceability and no obsolescence risk.
Supply support for 1.5SMC10 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and MOSFETs for industrial and automotive markets.
The 1.5SMC series was engineered for high-reliability surface-mount surge protection in harsh environments, targeting applications demanding ISO 7637-2 compliance, low leakage, and stable clamping across wide temperature ranges.
FAQ
What is the maximum clamping voltage of the 1.5SMC10 under standard surge conditions?
The 1.5SMC10 has a maximum clamping voltage (VC) of 15.0 V when subjected to a 10 A peak impulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream components rated for ≤16 V will remain within safe operating limits during transient events. The 1.5SMC10 achieves this clamping performance while maintaining low leakage and tight VBR tolerance.
Is the 1.5SMC10 suitable for bidirectional transient protection?
The 1.5SMC10 is a unidirectional TVS diode and is not inherently bidirectional. For bidirectional protection, Taiwan Semiconductor offers the 1.5SMC10C or 1.5SMC10CA variants - which include internal back-to-back diode configuration. Using two 1.5SMC10 devices in anti-parallel is possible but introduces asymmetry and requires careful layout to avoid parasitic inductance skewing clamping balance. The 1.5SMC10 itself must be oriented with cathode toward the protected line.
What is the forward voltage drop of the 1.5SMC10, and how does it affect circuit operation?
The 1.5SMC10 has a forward voltage (VF) of 3.5 V at 50 A, per the family specification for 1.5SMC6.8–1.5SMC91 devices. This parameter applies only during forward conduction (e.g., during positive surges on a reversed installation), not during normal reverse-biased operation. Since the 1.5SMC10 is intended for reverse-clamping use, VF is not a functional design parameter - but it confirms robust metallization capable of handling high forward surge currents without bond-wire failure.
How does the 1.5SMC10 compare to the 1.5SMC10A variant?
The 1.5SMC10A offers tighter breakdown voltage tolerance (9.5–10.5 V vs. 9.0–11.0 V for the 1.5SMC10), lower clamping voltage (14.5 V vs. 15.0 V), and slightly higher working stand-off voltage (8.55 V vs. 8.10 V). Both share identical package, thermal specs, and surge rating. The 1.5SMC10A is preferred in precision 12 V rail protection where tighter VBR control minimizes false triggering, while the 1.5SMC10 remains cost-optimized for general-purpose 24 V input stages where 1 V VBR spread is acceptable.
Does the 1.5SMC10 meet automotive-grade reliability standards?
The 1.5SMC10 meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for automotive transient immunity and is qualified to AEC-Q200 Class 3 (−40 to +125 °C ambient) when operated within its specified junction temperature range (−55 to +150 °C). While not AEC-Q101 certified as a discrete diode, its construction - glass passivation, J-STD-020 moisture level 1, and matte tin plating - aligns with automotive manufacturing and qualification practices for non-safety-critical protection elements.
1.5SMC10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.1V
- Voltage - Breakdown (Min):
- 9V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 105A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC10 FAQ
1.How can I place an order for 1.5SMC10 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC10 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 1.5SMC10 reliable?
The price and inventory of 1.5SMC10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC10 is usually 5 days.
3.What payment methods are accepted for 1.5SMC10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC10?
1.5SMC10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC10 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 1.5SMC10?
For technical support, including 1.5SMC10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC10 requirements.
6.How does Aetrix verify that 1.5SMC10 is sourced from the original manufacturer or authorized distributors?
All 1.5SMC10 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 1.5SMC10 meets industry standards.
7.What is the process for return or replacement of 1.5SMC10?
All 1.5SMC10 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC10, 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 1.5SMC10 part is unused and in its original packaging.
Return procedure for 1.5SMC10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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