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Taiwan Semiconductor Corporation SMCJ13AH
- Part No.:
- SMCJ13AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13AH.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,276
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Product details
Overview
SMCJ13AH from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 13V working stand-off voltage (VWM), 14.4–15.9V breakdown voltage (VBR), and 21.5V maximum clamping voltage (VC) at 73A peak pulse current - designed for automotive-grade ESD and load-switching surge protection in power supply rails and I/O interfaces.
For engineers reviewing the SMCJ13AH datasheet, SMCJ13AH pinout, SMCJ13AH application, or SMCJ13AH equivalent, this device delivers AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1ps response time, <1µA reverse leakage above 10V, and robust thermal performance (RθJC = 10°C/W) for high-reliability industrial and automotive electronics.
Technical Context
The SMCJ13AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (14.4–15.9V @ 1mA), clamping transients to ≤21.5V at 73A (10/1000µs waveform). Its glass-passivated junction ensures stable breakdown and low leakage (<1µA @ 13V).
Designed for automotive environments, it meets AEC-Q101 stress requirements and ISO 7637-2 immunity standards for pulses induced by load dump, inductive switching, and ESD. Thermal design is supported by RθJA = 55°C/W and TJ max = +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12V automotive systems. |
| VBR min/max | 14.4 V / 15.9 V @ 1 mA - Verified avalanche onset range; ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | 21.5 V @ 73 A (10/1000 µs) - Clamped voltage during worst-case surge; limits downstream IC stress below 24V system tolerance. |
| PPK | 1500 W - Peak pulse power handling capacity; supports high-energy transients per ISO 7637-2 Pulse 5a (load dump). |
| IR @ VWM | <1 µA @ 13 V - Ultra-low leakage preserves battery life and signal integrity in always-on circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive locations and industrial enclosures without derating. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode-banded unidirectional configuration. Matte tin-plated leads, JEDEC-compliant, moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; establishes clamping reference for protected line. |
| Cathode | Protected line input | Connected to the circuit node requiring surge suppression (e.g., 12V rail, CAN bus, sensor input); conducts avalanche current to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test requirements including HTOL, TCT, and ESD-HBM/MM - eliminates need for additional qualification effort. |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive spike), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) - enables single-device compliance in 12V vehicle networks. |
| Glass-passivated junction | Ensures stable VBR over lifetime and temperature; prevents parameter drift due to humidity or contamination in harsh environments. |
| Fast response time | <1 ps from 0 V to VBR min - reacts before most microsecond-scale transients can damage downstream logic or analog circuitry. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs, body control modules, and lighting drivers from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power input and ground, acting as last-line clamping element before DC-DC converters or LDOs. Use Value: Limits clamped voltage to 21.5V during 73A surges, preventing overvoltage failure of 24V-tolerant regulators and ensuring ASIL-B functional safety compliance. |
Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature) in PLCs and motor drives exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) clamping device on signal lines referenced to local ground, suppressing ESD and inductive kickback without loading precision circuits. Use Value: Maintains signal fidelity with minimal DC offset error while clamping fast transients to ≤21.5V - critical for 16-bit ADC front-ends and isolated amplifiers. |
| Telecom Power Input Protection | Consumer USB-C Power Delivery Line Protection |
Use Scenario: Securing 12–48V PoE-powered equipment inputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary surge clamp on primary-side DC input, coordinated with upstream fuses and secondary-side TVS arrays. Use Value: Delivers 1500W peak power dissipation with RθJC = 10°C/W, enabling compact heatsink-free designs in space-constrained telecom modules. |
Use Scenario: Protecting USB-C CC and VBUS lines in portable chargers and docking stations against ESD and accidental 20V PD fault conditions. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS rail, selected for 13V VWM to avoid conduction during normal 5–20V PD operation while clamping >20V faults. Use Value: Achieves 21.5V clamping at 73A with <1µA leakage - preserves PD negotiation integrity and avoids false overvoltage shutdowns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | Lower PPK (600W), same VWM/VBR/VC specs, SMB package (smaller footprint, higher RθJA = 85°C/W) | Suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD); not rated for ISO 7637-2 Pulse 5a | Select when board space is constrained and surge energy is limited to ≤600W. |
| SMCJ13A | Same package and PPK, but non-AEC-Q101; VBR min = 14.4V, VBR max = 17.6V (wider tolerance vs. SMCJ13AH's 15.9V max) | Lacks automotive qualification and tighter VBR distribution; acceptable for industrial/commercial use only | Choose for cost-sensitive non-automotive designs where ±10% VBR variation is acceptable. |
Compared with SMBJ13A and SMCJ13A, the SMCJ13AH provides guaranteed AEC-Q101 qualification, tighter VBR distribution (14.4–15.9V), and full ISO 7637-2 compliance - making it the only option qualified for under-hood automotive deployment without additional system-level validation.
Availability
SMCJ13AH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power input protection requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.
Supply support for SMCJ13AH 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, with global ISO/TS 16949 and AEC-Q200 certified production lines.
The SMCJ13AH belongs to TSC's AEC-Q101-qualified SMCJ(A)H series - engineered specifically for high-energy transient suppression in automotive and industrial environments where reliability, clamping precision, and thermal robustness are critical.
FAQ
What is the polarity configuration of the SMCJ13AH?
The SMCJ13AH is a unidirectional TVS diode with cathode band marking indicating the cathode terminal. It conducts only during reverse overvoltage events - i.e., when the cathode is driven positive relative to the anode - and remains high-impedance under forward bias and normal operating voltage. This configuration matches standard 12V rail protection layouts where the cathode connects to the protected line and the anode to ground. The SMCJ13AH data sheet confirms unidirectional operation and specifies VF = 3.5 V @ 100 A only for unidirectional variants.
Does the SMCJ13AH meet automotive qualification standards?
Yes, the SMCJ13AH is explicitly AEC-Q101 qualified, as stated in the product features and ordering documentation. It has undergone stress testing including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD (HBM), validating its suitability for automotive under-hood and chassis applications. This qualification is distinct from the non-AEC-Q101 SMCJ13A variant and is a key differentiator confirmed in Taiwan Semiconductor's official release A2102.
What is the maximum clamping voltage of the SMCJ13AH and at what current is it specified?
The SMCJ13AH has a maximum clamping voltage (VC) of 21.5 V, measured at a peak pulse current (IPPM) of 73 A using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across temperature and production lot, and appears in the Electrical Specifications table on page 2 of the official datasheet (Version A2102). It defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
How does the SMCJ13AH differ from the SMCJ13H variant?
The SMCJ13AH differs from SMCJ13H primarily in tighter breakdown voltage tolerance: SMCJ13AH specifies VBR = 14.4–15.9 V, whereas SMCJ13H specifies 14.4–17.6 V. Both share identical package (DO-214AB), PPK (1500 W), VWM (13 V), and VC (21.5 V / 23.8 V respectively). The "A" suffix denotes enhanced VBR uniformity - critical for designs requiring predictable clamping onset without margin padding. The SMCJ13AH also carries AEC-Q101 qualification, unlike SMCJ13H.
Is the SMCJ13AH compatible with lead-free reflow soldering processes?
Yes, the SMCJ13AH uses matte tin-plated leads and is rated for lead-free reflow soldering per J-STD-002. Its moisture sensitivity level is rated at Level 1 (per J-STD-020), meaning it can be stored indefinitely at ambient conditions without baking prior to assembly. The device's molding compound meets UL 94V-0 flammability rating, and terminals pass JESD201 Class 2 whisker testing - confirming robustness in modern RoHS-compliant manufacturing flows.
SMCJ13AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 73A
- 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)
SMCJ13AH FAQ
1.How can I place an order for SMCJ13AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13AH 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 SMCJ13AH reliable?
The price and inventory of SMCJ13AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ13AH is usually 5 days.
3.What payment methods are accepted for SMCJ13AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13AH?
SMCJ13AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13AH 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 SMCJ13AH?
For technical support, including SMCJ13AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13AH requirements.
6.How does Aetrix verify that SMCJ13AH is sourced from the original manufacturer or authorized distributors?
All SMCJ13AH 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 SMCJ13AH meets industry standards.
7.What is the process for return or replacement of SMCJ13AH?
All SMCJ13AH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13AH, 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 SMCJ13AH part is unused and in its original packaging.
Return procedure for SMCJ13AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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