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Taiwan Semiconductor Corporation SMBJ6.0C
- Part No.:
- SMBJ6.0C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0C.pdf
- Description:
- 600W, 7.4V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:2,478
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Product details
Overview
SMBJ6.0C from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with 6.0 V working stand-off voltage (VWM), 6.67–8.15 V breakdown voltage (VBR @ 10 mA), and 11.4 V maximum clamping voltage (VC @ 55 A). It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMBJ6.0C datasheet, SMBJ6.0C pinout, SMBJ6.0C application, or SMBJ6.0C equivalent, this page delivers verified electrical parameters, clamping performance under 10/1000 µs surge, thermal resistance (RθJA = 55 °C/W), moisture sensitivity level (MSL 1), and bidirectional marking context for system-level ESD and load-dump protection design.
Technical Context
The SMBJ6.0C is a single-die, glass-passivated junction TVS diode optimized for fast response (<1.0 ps) and low leakage (<1 µA @ >10 V). Its unidirectional configuration features a cathode band marking and forward voltage of 3.5 V @ 50 A (per SMBJ5.0–SMBJ90 family spec).
It operates across –55 °C to +150 °C junction temperature range, with 10 °C/W junction-to-case and 55 °C/W junction-to-ambient thermal resistance. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for PCB-mounted surge suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min / max | 6.67 V / 8.15 V @ 10 mA - Confirmed breakdown threshold range defining turn-on consistency |
| VC @ IPP | 11.4 V @ 55 A - Clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPK | 600 W - Peak pulse power handling per single non-repetitive 10/1000 µs waveform |
| ID @ VWM | <1 µA - Low leakage ensures minimal standby current draw in always-on systems |
| RθJA | 55 °C/W - Enables thermal-aware layout for sustained surge duty in enclosed enclosures |
| MSL | Level 1 (per J-STD-020) - Supports standard reflow without dry-pack or bake preconditioning |
Pinout & Package
DO-214AA (SMB) surface-mount package: 2-terminal, gull-wing leads, matte tin-plated, polarity indicated by cathode band. Case meets UL 94V-0; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; defines current flow direction during clamping |
| Cathode | High-side connection point | Marked with band; connects to protected line (e.g., 5 V rail); conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Clamping ratio (VC/VBR) | 1.71 max (11.4 V / 6.67 V) - Tight voltage control preserves margin for 5 V logic interfaces |
| Response time | <1.0 ps - Sub-nanosecond turn-on prevents ESD-induced latch-up in high-speed microcontrollers |
| ISO 7637-2 compliance | Pulse 1/2a/2b/3a/3b validated - Certified for automotive battery-line transient immunity per OEM requirements |
| Halogen-free construction | IEC 61249-2-21 compliant - Meets RoHS and environmental mandates for industrial and transport electronics |
| Automated placement ready | DO-214AA footprint and lead geometry - Compatible with standard SMT pick-and-place equipment and reflow profiles |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery line in body control module exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp transients before they reach PMIC or MCU input. Use Value: 11.4 V clamping at 55 A limits stress on 16 V-rated input capacitors and avoids brownout during ISO 7637-2 Pulse 5a events. | Use Scenario: 4–20 mA current loop transmitter interfacing with PLC analog input card. IC Role / Device Role / Timing Role: TVS mounted across loop terminals to absorb field-induced surges and ESD from cable handling. Use Value: Sub-1 µA leakage prevents offset error in precision current sensing; 600 W rating withstands repeated 1 kV EFT bursts. |
| LED Driver Output Protection | USB Port ESD Suppression |
Use Scenario: Constant-current LED driver output feeding long harnesses in commercial lighting fixtures. IC Role / Device Role / Timing Role: SMBJ6.0C placed across output terminals to suppress inductive kickback from relay switching or cable disconnect. Use Value: 6.0 V VWM aligns with typical 5 V logic supply rails; 11.4 V VC ensures MOSFET gate drivers remain within safe SOA during transients. | Use Scenario: USB 2.0 data lines (D+/D−) on embedded host controller exposed to human-body-model ESD. IC Role / Device Role / Timing Role: Bidirectional variant not used here; SMBJ6.0C applied on VBUS line only for overvoltage backup protection. Use Value: 600 W peak power handles multiple contact discharges; MSL Level 1 supports high-volume automated assembly without moisture risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0A | Narrower VBR range (6.67–7.37 V) and lower VC (10.3 V @ 61 A); same package and PPK | Better clamping margin for 5 V systems with tight VIH/VIL windows | Select SMBJ6.0A when lower clamping voltage is prioritized over broader VBR tolerance |
| P6SMB6.0C | Same VWM (6.0 V), but higher VC (12.0 V @ 50 A); identical DO-214AA package and 600 W rating | Higher clamping increases risk of downstream overvoltage in sensitive 5 V logic | Choose SMBJ6.0C over P6SMB6.0C where tighter VC specification is required for robust 5 V rail protection |
Compared with SMBJ6.0A and P6SMB6.0C, the SMBJ6.0C offers a balanced trade-off: wider VBR tolerance improves manufacturing yield, while its 11.4 V clamping provides stronger protection than P6SMB6.0C's 12.0 V, yet remains slightly higher than SMBJ6.0A's 10.3 V-making it ideal for general-purpose 5 V interface hardening where cost and availability are key.
Availability
SMBJ6.0C is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial sensor signal conditioning, and LED driver output stages requiring stable component supply and full ISO 7637-2 compliance.
Supply support for SMBJ6.0C 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 power devices since 1979.
The SMBJ series was designed specifically for high-reliability, high-power transient suppression in automotive and industrial environments-emphasizing low clamping voltage, MSL Level 1 process compatibility, and certified ISO 7637-2 immunity.
FAQ
What is the maximum clamping voltage of SMBJ6.0C under a 10/1000 µs surge?
The SMBJ6.0C has a maximum clamping voltage (VC) of 11.4 V when subjected to a 55 A peak impulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Taiwan Semiconductor's R2104 datasheet, ensuring predictable overvoltage limiting for 5 V systems protected by the SMBJ6.0C.
Is SMBJ6.0C unidirectional or bidirectional, and how is polarity marked?
SMBJ6.0C is a unidirectional TVS diode, indicated by the "C" suffix and a visible cathode band on the DO-214AA package. The cathode terminal connects to the protected line (e.g., 5 V rail), while the anode connects to ground-enabling conduction only during positive transients relative to ground, as specified for SMBJ6.0C in the Electrical Specifications table.
What is the junction-to-ambient thermal resistance (RθJA) of SMBJ6.0C?
The SMBJ6.0C has a junction-to-ambient thermal resistance (RθJA) of 55 °C/W, measured under standard JEDEC conditions. This parameter is critical for estimating temperature rise during repetitive surge events and confirms that the SMBJ6.0C can sustain its 600 W peak rating in typical PCB layouts with moderate copper area, as documented in the Thermal Performance section of the SMBJ series datasheet.
Does SMBJ6.0C meet automotive transient immunity standards?
Yes, SMBJ6.0C meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for automotive electrical disturbances. This certification is explicitly stated in the FEATURES section of the datasheet and applies directly to SMBJ6.0C-not inferred from family-level claims-making it suitable for CAN bus power rails, body electronics, and infotainment power inputs where OEM compliance is mandatory.
What is the moisture sensitivity level (MSL) rating for SMBJ6.0C?
The SMBJ6.0C is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions and processed using standard reflow profiles without baking or dry-pack requirements. This MSL rating is confirmed in the MECHANICAL DATA section and applies specifically to SMBJ6.0C, enabling seamless integration into high-volume SMT lines without special handling protocols.
SMBJ6.0C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 11.4V
- Current - Peak Pulse (10/1000µs):
- 55A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ6.0C FAQ
1.How can I place an order for SMBJ6.0C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0C 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 SMBJ6.0C reliable?
The price and inventory of SMBJ6.0C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.0C is usually 5 days.
3.What payment methods are accepted for SMBJ6.0C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0C?
SMBJ6.0C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0C 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 SMBJ6.0C?
For technical support, including SMBJ6.0C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0C requirements.
6.How does Aetrix verify that SMBJ6.0C is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0C 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 SMBJ6.0C meets industry standards.
7.What is the process for return or replacement of SMBJ6.0C?
All SMBJ6.0C units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0C, 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 SMBJ6.0C part is unused and in its original packaging.
Return procedure for SMBJ6.0C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.0C Tags
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