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Taiwan Semiconductor Corporation 1.5SMC13AH
- Part No.:
- 1.5SMC13AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC13AH.pdf
- Description:
- 1500W, 13V, 5%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,069
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Product details
Overview
1.5SMC13AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 12.4–13.7 V breakdown voltage (VBR), 11.1 V working stand-off voltage (VWM), 18.2 V maximum clamping voltage (VC) at 86 A peak pulse current, 1500 W peak pulse power rating, and AEC-Q101 qualification for automotive-grade reliability - deployed in automotive body control modules to protect CAN transceivers from load dump and ESD.
For engineers reviewing the 1.5SMC13AH datasheet, 1.5SMC13AH pinout, 1.5SMC13AH application, or 1.5SMC13AH equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, junction-to-case thermal resistance (15 °C/W), moisture sensitivity level (J-STD-020 Level 1), and unidirectional polarity marking per DO-214AB package.
Technical Context
The 1.5SMC13AH operates as a silicon avalanche diode with glass-passivated junction, delivering sub-1 ps response time and <1 µA blocking leakage at 11.1 V. Its unidirectional configuration enables asymmetric clamping - forward conduction only during reverse overvoltage events - with VF = 3.5 V at 50 A for this voltage range (per note 2).
Thermally, it sustains 150 °C maximum junction temperature and exhibits RθJA = 50 °C/W and RθJC = 15 °C/W, enabling direct PCB copper pour heatsinking. It meets ISO 7637-2 immunity requirements for automotive electronics without external series impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V / 13.7 V - ensures reliable avalanche initiation above 11.1 V system operating rail |
| VWM | 11.1 V - maximum continuous reverse voltage before leakage exceeds 1 µA |
| VC @ IPPM | 18.2 V at 86 A - limits downstream IC voltage stress during 10/1000 µs transients |
| PPK | 1500 W - handles high-energy load dump pulses per ISO 7637-2 Pulse 5a |
| IPPM | 86 A - peak surge current capacity defined by 10/1000 µs waveform |
| TJ max | 150 °C - supports operation in under-hood automotive environments |
| RθJC | 15 °C/W - enables efficient heat transfer to PCB ground plane via cathode pad |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional, cathode band marked on case. Matte tin-plated leads, J-STD-002 solderable, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line; conducts only during forward-biased surge conditions |
| Cathode | Ground/Return side | Connected to system ground; carries full transient current during reverse avalanche |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including temperature cycling, mechanical shock, and humidity testing |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| Clamping ratio (VC/VBR) | 1.33 - low ratio minimizes voltage overshoot across protected ICs |
| Moisture sensitivity level | Level 1 (J-STD-020) - no baking required prior to reflow assembly |
| ISO 7637-2 compliance | Passes Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line capacitance discharge) |
Applications
| Automotive Body Control Module | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V supply rail of BCM microcontroller and LIN transceivers against battery load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at power entry point before LDO regulators. Use Value: Limits rail voltage to ≤18.2 V during 100 V/50 ms load dump events, preventing latch-up or gate oxide damage in downstream ICs. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to field wiring transients. IC Role / Device Role / Timing Role: Standoff protector in parallel with optocoupler input, absorbing induced surges from relay coil switching. Use Value: Clamps 1 kV/1 µs fast transients to <20 V within 1 ps, preserving optocoupler CTR and enabling >100,000 surge cycles. |
| Telecom Power Feeding Interface | Consumer Appliance Motor Drive Board |
Use Scenario: Shielding PoE-powered Ethernet PHY interfaces from ESD and lightning-induced surges on DC feed lines. IC Role / Device Role / Timing Role: Secondary-level TVS after primary MOV, placed adjacent to PHY IC power pins. Use Value: Sub-1 µA leakage at 11.1 V prevents bias current interference with sensitive analog PHY receivers. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Snubber element across motor terminals, clamping inductive kickback during PWM turn-off. Use Value: 1500 W peak power rating absorbs 100 mJ energy per pulse without degradation, extending board lifetime beyond 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | 600 W peak power, DO-214AA (SMB) package, 13.3–14.7 V VBR, 11.1 V VWM | Limited to lower-energy transients; not rated for ISO 7637-2 Pulse 5a | Select when space-constrained layouts require smaller footprint and surge energy is ≤600 W |
| 1.5KE13A | Through-hole DO-201 package, same 12.4–13.7 V VBR, but 1000 W PPK, higher RθJA (70 °C/W) | Not suitable for automated SMT assembly; requires wave soldering or hand assembly | Select only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ13A and 1.5KE13A, the 1.5SMC13AH delivers 2.5× higher surge power handling in an SMT-optimized package with automotive-qualified reliability and superior thermal dissipation - making it the preferred choice for production automotive and industrial power rail protection.
Availability
1.5SMC13AH is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom power interfaces requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for 1.5SMC13AH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs - headquartered in Hsinchu, Taiwan, with global distribution and AEC-Q101 validation capability.
The 1.5SMCxxAH series was developed specifically for automotive and industrial DC power line protection, emphasizing robust clamping, low leakage, and seamless integration into automated SMT production lines.
FAQ
What is the clamping voltage of the 1.5SMC13AH under standard test conditions?
The 1.5SMC13AH has a maximum clamping voltage (VC) of 18.2 V at 86 A peak pulse current (IPPM) using the 10/1000 µs waveform per IEC 61000-4-5. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5SMC13AH suitable for bidirectional transient suppression?
No, the 1.5SMC13AH is a unidirectional TVS diode and must be used with correct polarity - anode to line, cathode to ground. For bidirectional protection, TSC offers the 1.5SMC13CAH variant. Using the 1.5SMC13AH in reverse-biased AC applications risks permanent failure due to forward conduction during positive half-cycles.
Does the 1.5SMC13AH meet automotive qualification standards?
Yes, the 1.5SMC13AH is AEC-Q101 qualified and tested per ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b. It also complies with J-STD-020 moisture sensitivity Level 1 and RoHS/Halogen-free requirements - confirming suitability for under-hood and cabin automotive modules.
What is the thermal resistance from junction to case for the 1.5SMC13AH?
The 1.5SMC13AH has a junction-to-case thermal resistance (RθJC) of 15 °C/W. This low value enables effective heat transfer from the silicon die to the PCB copper pour via the cathode terminal - essential for sustaining repeated 1500 W surges without exceeding 150 °C junction temperature.
How does the 1.5SMC13AH compare to the 1.5SMC13H in terms of electrical performance?
The 1.5SMC13AH has tighter VBR tolerance (12.4–13.7 V vs. 11.7–14.3 V for 1.5SMC13H) and lower VWM (11.1 V vs. 10.5 V), resulting in improved margin between operating voltage and clamping threshold. Both share identical PPK (1500 W), package (DO-214AB), and AEC-Q101 qualification - making the 1.5SMC13AH preferable for precision rail protection.
1.5SMC13AH 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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 86A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC13AH FAQ
1.How can I place an order for 1.5SMC13AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC13AH 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 1.5SMC13AH reliable?
The price and inventory of 1.5SMC13AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC13AH is usually 5 days.
3.What payment methods are accepted for 1.5SMC13AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC13AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC13AH?
1.5SMC13AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC13AH 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 1.5SMC13AH?
For technical support, including 1.5SMC13AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC13AH requirements.
6.How does Aetrix verify that 1.5SMC13AH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC13AH 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 1.5SMC13AH meets industry standards.
7.What is the process for return or replacement of 1.5SMC13AH?
All 1.5SMC13AH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC13AH, 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 1.5SMC13AH part is unused and in its original packaging.
Return procedure for 1.5SMC13AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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