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Taiwan Semiconductor Corporation SMCJ5.0H
- Part No.:
- SMCJ5.0H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0H.pdf
- Description:
- 1500W, 6.9V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,845
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Product details
Overview
SMCJ5.0H from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 6.4V minimum breakdown voltage, 10V working stand-off voltage, 164V maximum clamping voltage at 1000A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability. It protects sensitive electronics against ESD, lightning-induced surges, and load-switching transients in power supply rails and I/O lines.
For engineers reviewing the SMCJ5.0H datasheet, SMCJ5.0H pinout, SMCJ5.0H application, or SMCJ5.0H equivalent, key selection criteria include clamping voltage under 1000A surge, sub-1ps response time, <1μA reverse leakage above 10V, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and DO-214AB thermal performance (RθJC = 10°C/W).
Technical Context
The SMCJ5.0H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 6.4–7.3V breakdown range at 10mA test current. Its glass-passivated junction ensures stable VBR and low leakage (<5μA at 10V), while fast response (<1.0ps) enables suppression of nanosecond-scale transients before downstream ICs are damaged.
Thermally, it sustains 1500W peak pulse power (1ms waveform) with junction temperature rated from –55°C to +150°C and RθJA = 55°C/W. The device uses a single-die configuration in a matte tin-plated DO-214AB case meeting UL 94V-0 and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC/AC rail margin. |
| VBR @ IT=10mA | 6.4–7.3 V - Breakdown threshold range; ensures reliable turn-on during transients without premature conduction. |
| VC @ IPPM=1000A | 164 V - Clamped voltage under worst-case 1000A surge; determines maximum stress on protected circuitry. |
| PPK | 1500 W - Peak pulse power handling (1ms, 10/1000μs waveform); supports high-energy automotive and industrial surges. |
| IR @ VWM | <5 μA - Reverse leakage at stand-off voltage; minimizes standby power loss and signal integrity impact. |
| RθJC | 10 °C/W - Junction-to-case thermal resistance; enables effective heatsinking via PCB copper pour or metal-core substrate. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Case meets UL 94V-0 flammability rating; terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; carries full surge current during clamping. |
| Cathode | Reverse-biased input / Protected line connection | Connected to the line being protected (e.g., 12V rail, CAN H); blocks normal operation but avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and infotainment systems per stress-test requirements. |
| Clamping voltage ≤164V @ 1000A | Ensures downstream 12V-rated ICs (e.g., microcontrollers, transceivers) remain within absolute maximum ratings during ISO 7637-2 Pulse 5a events. |
| Glass-passivated junction | Provides stable electrical parameters across temperature and lifetime, with reduced parameter drift vs. epoxy-passivated alternatives. |
| Response time <1.0ps | Activates faster than most semiconductor switching transients, preventing latch-up or gate oxide damage in MOSFET drivers and logic ICs. |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow; compatible with standard SMT assembly processes without floor-life constraints. |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 12V battery-fed ECUs in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp surges up to 120V for <100ms. Use Value: Limits peak voltage to 164V at 1000A, protecting buck controller ICs rated for 65V absolute max input without derating or oversized input capacitors. | Use Scenario: Guarding 24V digital input channels in programmable logic controllers against field-wiring induced surges and ESD from operator interaction. IC Role / Device Role / Timing Role: Standoff protection element mounted directly at connector interface, shunting transients before signal conditioning op-amps and optocouplers. Use Value: Sub-1ps response prevents false triggering of Schmitt-trigger inputs; <5μA leakage avoids bias current errors in high-impedance sensing circuits. |
| Telecom DC Power Feeds | Consumer Equipment AC/DC Adapter Outputs |
Use Scenario: Safeguarding PoE-powered Ethernet switches and base station RF modules from lightning-induced common-mode surges on 48V DC distribution lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side 48V bus, coordinated with upstream MOVs and gas discharge tubes in multi-stage protection. Use Value: 1500W peak power rating allows robust coordination with slower primary protectors; DO-214AB footprint enables high-current PCB trace routing. | Use Scenario: Protecting USB-C PD and laptop adapter outputs against accidental short-circuit recovery spikes and hot-plug transients. IC Role / Device Role / Timing Role: Final-stage TVS on regulated 5V/20V output rail, placed after DC-DC post-regulator to prevent overshoot propagation to connected devices. Use Value: 10V VWM provides 2× margin over nominal 5V output; clamping at 164V prevents damage to USB-PD controllers during 100ns–1μs edge-induced ringing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A | 600W peak power, SMB package (smaller footprint, higher RθJA = 75°C/W), lower IPPM = 62A | Suitable for space-constrained consumer designs with lower surge exposure (IEC 61000-4-2/5 only) | Select SMCJ5.0H when automotive or industrial ISO 7637-2 compliance is required; SMBJ5.0A suffices for handheld or indoor equipment. |
| 1.5KE5.0A | Through-hole TO-218 package, 1500W rating, longer lead inductance (~15nH), slower effective response due to parasitic L | Better suited for legacy board designs or high-vibration environments where mechanical retention is critical | Choose SMCJ5.0H for automated SMT production and superior high-frequency transient suppression; 1.5KE5.0A only where through-hole mounting is mandated. |
Compared with SMBJ5.0A and 1.5KE5.0A, the SMCJ5.0H delivers identical voltage ratings but superior surge robustness in surface-mount form-enabling compact, high-reliability layouts for automotive and industrial systems requiring validated AEC-Q101 performance and ISO 7637-2 immunity.
Availability
SMCJ5.0H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial PLC I/O protection, telecom DC power feeds, and consumer equipment AC/DC adapter outputs requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for SMCJ5.0H 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 SMCJ5.0H belongs to TSC's SMCJ(A)H series of high-power surface-mount TVS diodes, engineered specifically for automotive and industrial applications demanding AEC-Q101 qualification, ISO 7637-2 compliance, and robust 1500W surge handling in compact DO-214AB packaging.
FAQ
What is the breakdown voltage range of the SMCJ5.0H?
The SMCJ5.0H has a guaranteed breakdown voltage range of 6.4 V to 7.3 V at 10 mA test current (IT), measured per ANSI/IEEE C62.35. This range ensures consistent avalanche initiation across manufacturing lots and temperature extremes, supporting reliable overvoltage protection in 12V automotive and industrial systems where precise clamping onset is critical.
Is the SMCJ5.0H suitable for bidirectional transient suppression?
No, the SMCJ5.0H is a unidirectional TVS diode intended for DC rail protection with defined polarity. For bidirectional applications such as AC lines or data buses, Taiwan Semiconductor offers the SMCJ5.0CH variant (with CH or CAH suffix), which provides symmetrical clamping in both directions and identical electrical specifications except for polarity independence.
What is the maximum clamping voltage of the SMCJ5.0H under surge conditions?
The SMCJ5.0H exhibits a maximum clamping voltage (VC) of 164 V when subjected to a 1000 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during worst-case transients, ensuring compatibility with 150 V-rated downstream components.
Does the SMCJ5.0H meet automotive qualification standards?
Yes, the SMCJ5.0H is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. Its glass-passivated junction, moisture sensitivity level 1 rating, and –55°C to +150°C operating range make it suitable for under-hood and chassis-mounted automotive electronics.
What package type does the SMCJ5.0H use, and what are its thermal characteristics?
The SMCJ5.0H uses the DO-214AB (SMC) surface-mount package with matte tin-plated leads. Its thermal performance includes a junction-to-case resistance (RθJC) of 10°C/W and junction-to-ambient resistance (RθJA) of 55°C/W, enabling efficient heat dissipation into PCB copper planes-critical for sustaining repeated 1500W surge events in high-density layouts.
SMCJ5.0H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 164A
- 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)
SMCJ5.0H FAQ
1.How can I place an order for SMCJ5.0H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0H 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 SMCJ5.0H reliable?
The price and inventory of SMCJ5.0H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0H is usually 5 days.
3.What payment methods are accepted for SMCJ5.0H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0H?
SMCJ5.0H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0H 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 SMCJ5.0H?
For technical support, including SMCJ5.0H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0H requirements.
6.How does Aetrix verify that SMCJ5.0H is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0H 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 SMCJ5.0H meets industry standards.
7.What is the process for return or replacement of SMCJ5.0H?
All SMCJ5.0H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0H, 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 SMCJ5.0H part is unused and in its original packaging.
Return procedure for SMCJ5.0H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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