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Taiwan Semiconductor Corporation SMCJ13H
- Part No.:
- SMCJ13H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13H.pdf
- Description:
- 1500W, 16V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,900
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Product details
Overview
SMCJ13H 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), 14.4–17.6V breakdown voltage (VBR), and 23.8V maximum clamping voltage (VC) at 66A peak pulse current. It delivers AEC-Q101 qualification and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and ESD protection in power rails.
For engineers reviewing the SMCJ13H datasheet, SMCJ13H pinout, SMCJ13H application, or SMCJ13H equivalent, this page provides verified electrical parameters, thermal performance data (RθJA = 55°C/W), polarity marking guidance, and direct alternatives for 13V rail protection in automotive ECUs, industrial I/O modules, and telecom power interfaces.
Technical Context
The SMCJ13H uses a glass-passivated silicon junction to achieve sub-1.0ps response time from 0 V to VBR(min), enabling effective suppression of fast transients such as ESD (IEC 61000-4-2) and inductive switching spikes. Its unidirectional configuration supports DC-biased lines with cathode-band polarity marking.
Thermally, it features RθJC = 10°C/W and operates across –55°C to +150°C junction temperature range. Steady-state power dissipation is 5W at 25°C ambient, derated linearly above that per Fig.2, and it withstands 200A non-repetitive forward surge (8.3ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected line voltage. |
| VBR min/max | 14.4 V / 17.6 V @ 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on above nominal rail. |
| VC @ IPPM | 23.8 V @ 66 A - Clamped voltage during 10/1000μs surge; defines worst-case overvoltage seen by downstream circuitry. |
| PPK | 1500 W - Peak pulse power rating per 1ms pulse; determines survivability against high-energy transients. |
| IR @ VWM | <1 μA - Reverse leakage at 13 V; negligible loading on 12V automotive or industrial supply rails. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood or enclosed industrial enclosures. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band (unidirectional only). Weight ≈ 0.210 g. Meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress-enables use in engine control, body electronics, and ADAS power supplies. |
| ISO 7637-2 compliance | Tested against Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling); suitable for 12V vehicle battery rail protection. |
| Glass passivated junction | Ensures stable VBR over lifetime and improved moisture resistance vs. epoxy-passivated devices; supports long-term field reliability in humid environments. |
| Fast response time <1.0 ps | Clamps within picoseconds of transient onset-critical for protecting high-speed logic, CAN transceivers, and microcontroller I/O pins from ESD-induced latch-up. |
Applications
| Automotive Power Rail Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed MCU power inputs in engine control units against load-dump pulses up to 35V and ISO 7637-2 Pulse 1. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VIN and GND, activated only during overvoltage events to shunt surge energy away from LDOs and microcontrollers. Use Value: Limits peak voltage to 23.8V during 66A transients, preventing damage to 28V-rated input stages while maintaining <1μA leakage during normal 13V operation. | Use Scenario: Shielding 24V digital input channels in programmable logic controllers from inductive kickback from solenoid drivers and relay coils. IC Role / Device Role / Timing Role: Standoff device mounted at connector entry point; clamps negative-going transients (Pulse 3b) and positive surges (Pulse 2a) on field wiring. Use Value: Withstands 200A forward surge (8.3ms) and maintains 13V stand-off to avoid false triggering during nominal 24V ±10% operation. |
| Telecom DC Power Feed Protection | Consumer Appliance Motor Drive Supply Clamp |
Use Scenario: Safeguarding PoE-powered Ethernet switch DC feeds (48V nominal) against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level TVS on secondary-side DC bus; coordinated with primary MOVs to handle residual energy after upstream suppression. Use Value: 1500W PPK rating absorbs residual 10/1000μs transients not filtered upstream; 23.8V clamping prevents overvoltage on DC-DC controller ICs. | Use Scenario: Clamping voltage spikes generated by brushed DC motor commutation in home appliance control boards (e.g., washing machine drive circuits). IC Role / Device Role / Timing Role: Low-leakage (≤1μA) standoff protector on 12V motor driver VCC rail; activated only during brush arcing events. Use Value: Enables use without active biasing or series resistance; preserves efficiency and avoids standby current penalties in always-on control logic. |
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 | 600W PPK rating, SMB package (smaller footprint), lower IPPM (33.3A), higher VC (24.4V) | Lower energy handling; suited for space-constrained consumer electronics where 1500W surge immunity is not required. | Select SMBJ13A only if board layout limits SMC footprint and surge threat level is limited to IEC 61000-4-5 Level 3 (0.5kV/1.0kV). |
| 1.5KE13A | Through-hole DO-201 package, same 1500W rating but slower response (>1ns), higher IR (5μA), no AEC-Q101 or ISO 7637-2 validation | Not qualified for automotive or harsh industrial use; requires wave soldering and larger PCB area. | Choose 1.5KE13A only for cost-sensitive, non-automotive legacy designs where surface-mount assembly is unavailable. |
Compared with SMBJ13A and 1.5KE13A, the SMCJ13H offers superior automotive qualification, tighter clamping (23.8V vs. 24.4V/25.5V), and surface-mount compatibility for automated production-making it the preferred choice for new 12V/24V embedded systems requiring ISO 7637-2 compliance.
Availability
SMCJ13H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power feed applications requiring stable component supply with full AEC-Q101 traceability and ISO 7637-2 test documentation.
Supply support for SMCJ13H 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, MOSFETs, and power management components.
The SMCJ13H belongs to TSC's AEC-Q101-qualified SMCJ-H series of high-power TVS diodes, engineered specifically for robust transient suppression in automotive power distribution networks and industrial equipment subject to ISO 7637-2 and IEC 61000-4-5 threats.
FAQ
What is the polarity configuration of the SMCJ13H?
The SMCJ13H is a unidirectional TVS diode, with polarity marked by a cathode band on the DO-214AB (SMC) package. It conducts only when the cathode is at a higher potential than the anode-ideal for protecting DC-biased lines like 12V automotive rails. Bidirectional variants use CH or CAH suffixes; the SMCJ13H does not support symmetrical clamping.
Does the SMCJ13H meet automotive qualification standards?
Yes, the SMCJ13H is AEC-Q101 qualified and tested per ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b. This certification confirms its suitability for under-hood and chassis-mounted automotive electronics, including engine control modules, body control units, and infotainment power supplies subjected to load-dump and switching transients.
What is the maximum clamping voltage of the SMCJ13H during a surge event?
The SMCJ13H has a maximum clamping voltage (VC) of 23.8 V at 66 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the highest voltage imposed on protected circuitry during worst-case transient conditions.
Can the SMCJ13H be used in bidirectional signal line protection?
No-the SMCJ13H is unidirectional only. For bidirectional protection (e.g., RS-485, CAN bus), select the SMCJ13CH or SMCJ13CAH variant, which provide symmetrical clamping in both directions. Using the SMCJ13H on AC or bipolar signal lines risks failure due to forward conduction during negative excursions.
What is the thermal resistance profile of the SMCJ13H?
The SMCJ13H has a junction-to-ambient thermal resistance (RθJA) of 55°C/W and junction-to-case resistance (RθJC) of 10°C/W, measured on standard FR-4 PCB with recommended pad layout. These values assume minimal copper area; actual RθJA improves significantly with thermal vias and copper pour, critical for sustained surge duty cycles.
SMCJ13H 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:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 66A
- 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)
SMCJ13H FAQ
1.How can I place an order for SMCJ13H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13H 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 SMCJ13H reliable?
The price and inventory of SMCJ13H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ13H is usually 5 days.
3.What payment methods are accepted for SMCJ13H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13H?
SMCJ13H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13H 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 SMCJ13H?
For technical support, including SMCJ13H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13H requirements.
6.How does Aetrix verify that SMCJ13H is sourced from the original manufacturer or authorized distributors?
All SMCJ13H 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 SMCJ13H meets industry standards.
7.What is the process for return or replacement of SMCJ13H?
All SMCJ13H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13H, 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 SMCJ13H part is unused and in its original packaging.
Return procedure for SMCJ13H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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