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Taiwan Semiconductor Corporation SMBJ60C
- Part No.:
- SMBJ60C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ60C.pdf
- Description:
- 600W, 74.1V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,949
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Product details
Overview
SMBJ60C from Taiwan Semiconductor is a bi-directional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 60 V working stand-off voltage (VWM), 66.7–81.5 V breakdown voltage (VBR), 107 V maximum clamping voltage (VC) at 5.8 A peak impulse current, and 600 W peak pulse power rating with <1.0 ps response time. It is used in automotive power supply rails and industrial I/O ports to suppress ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMBJ60C datasheet, SMBJ60C pinout, SMBJ60C application, or SMBJ60C equivalent, key selection criteria include bidirectional clamping capability, DO-214AA (SMB) package compatibility, 150°C junction temperature rating, compliance with ISO 7637-2 immunity requirements, and leakage current ≤1 µA at 60 V.
Technical Context
The SMBJ60C is a single-die, bi-directional TVS diode built on a glass-passivated junction for stable avalanche performance under repetitive surge stress. Its clamping behavior follows the 10/1000 µs standard waveform, with thermal resistance RθJA = 55 °C/W enabling operation up to 150 °C junction temperature.
It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, supporting lead-free reflow soldering. Polarity is marked by cathode band - though functionally symmetric in bidirectional mode, this marking aligns with unidirectional variants in the SMBJ family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous DC or RMS voltage the device blocks without conduction. |
| VBR min/max | 66.7 V / 81.5 V @ 1 mA - Confirmed avalanche onset range ensuring reliable turn-on before system damage. |
| VC @ IPP | 107 V @ 5.8 A - Clamped voltage during 10/1000 µs surge, defining worst-case overvoltage seen by protected circuitry. |
| PPK | 600 W - Peak pulse power handling per single 10/1000 µs event, derated above 25°C ambient. |
| IR @ VWM | <1 µA - Low leakage ensures minimal power loss and signal integrity in high-impedance circuits. |
| TJ max | +150 °C - Enables use in under-hood automotive and industrial environments without thermal derating penalties. |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with 0.090 g mass and UL 94V-0 molding compound. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band. Symmetric bidirectional structure means both terminals serve identical clamping roles; no anode/cathode functional distinction in circuit operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (cathode-band side) | Surge return path (bidirectional) | Terminal where cathode marking appears; functions identically as clamping node in either polarity. |
| Cathode (opposite side) | Surge return path (bidirectional) | Unmarked terminal; electrically equivalent to marked side due to symmetrical Zener-like construction. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Protects AC-coupled or floating interfaces (e.g., RS-485, CAN bus, sensor bridges) without polarity sensitivity. |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), critical for automotive ECUs. |
| Glass-passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and lifetime stress. |
| Fast response <1.0 ps | Clamps before most semiconductor switching transients propagate, preventing latch-up or gate oxide rupture in downstream ICs. |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally compliant manufacturing. |
Applications
| Automotive Power Rail Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: 12 V battery line in engine control unit exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp limiting rail voltage to ≤107 V during ISO 7637-2 Pulse 5a events. Use Value: Prevents destruction of 3.3 V/5 V microcontrollers and CAN transceivers by holding rail within safe operating area during 35 V–40 V transients. |
Use Scenario: RS-485 differential pair in factory automation PLC connected to long field wiring. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed across A/B lines to shunt EFT and lightning-induced surges. Use Value: Maintains signal integrity by clamping common-mode surges to <110 V while adding <10 pF capacitance at 0 V bias. |
| LED Driver Input Protection | Medical Sensor Interface Protection |
Use Scenario: Constant-current LED driver input subjected to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: First-line defense absorbing 600 W surges before they reach buck controller IC and MOSFET gate drivers. Use Value: Eliminates need for additional series impedance or RC snubbers, reducing BOM count and board space. |
Use Scenario: Analog front-end of patient-worn biosensor connected to ECG electrodes. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) transient suppressor preserving DC accuracy of instrumentation amplifiers. Use Value: Enables sub-µV offset stability while surviving 4 kV ESD contact discharge per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60CA (Littelfuse) | Identical VWM (60 V), VBR (66.7–81.5 V), VC (107 V), and DO-214AA package; same 600 W rating and ISO 7637-2 compliance. | No functional deviation; validated in identical automotive and industrial surge test setups. | Drop-in replacement with identical marking layout and tape-and-reel packaging (3,000 pcs/reel). |
| P6SMB60CA (ON Semiconductor) | VWM = 60 V, VBR = 66.7–81.5 V, VC = 107 V, same 600 W rating and DO-214AA package; meets ISO 7637-2 but specifies lower IR limit (≤5 µA vs. ≤1 µA). | Higher leakage may affect ultra-low-power sensor nodes; otherwise interchangeable in power rail and data line protection. | Preferred where cost optimization is prioritized and leakage sensitivity is not critical. |
Compared with SMBJ60C, SMBJ60CA offers identical electrical and mechanical specs with full cross-compatibility, while P6SMB60CA trades slightly higher leakage for broader distribution channel availability - both require no PCB changes but differ in qualification documentation scope.
Availability
SMBJ60C is available at Aetrix Electronics and suitable for automotive electronics, industrial I/O modules, LED lighting systems, and medical sensor interfaces requiring stable component supply across extended production lifecycles.
Supply support for SMBJ60C 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 MOSFETs since 1979.
The SMBJ series was developed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing robustness against ISO 7637-2 pulses, tight parametric tolerances, and extended temperature operation.
FAQ
What is the clamping voltage of SMBJ60C under a 10/1000 µs surge?
The SMBJ60C has a maximum clamping voltage (VC) of 107 V when subjected to a 10/1000 µs waveform at 5.8 A peak impulse current. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ60C maintains this clamping performance across its full operating temperature range from –55 °C to +150 °C.
Is SMBJ60C unidirectional or bidirectional?
SMBJ60C is a bidirectional TVS diode, indicated by the "C" suffix per Taiwan Semiconductor's ordering convention. It provides symmetrical clamping in both polarities, making it suitable for AC-coupled lines, differential buses like RS-485 or CAN, and floating sensor inputs. Unlike unidirectional SMBJ60A, the SMBJ60C does not have functional anode/cathode distinction in circuit operation.
Does SMBJ60C meet automotive surge immunity standards?
Yes, SMBJ60C meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), as explicitly stated in Taiwan Semiconductor's datasheet. Its 600 W peak power rating and 107 V clamping voltage ensure compliance with Level III and IV test profiles commonly required for body control modules and infotainment systems.
What is the maximum leakage current of SMBJ60C at its working voltage?
The SMBJ60C exhibits a maximum blocking leakage current (ID) of 1 µA when biased at its 60 V working stand-off voltage (VWM), tested at 25 °C. This low leakage preserves signal integrity in high-impedance analog paths and minimizes standby power loss in battery-operated systems - a key differentiator versus alternatives with higher ID specifications.
What package type does SMBJ60C use, and is it RoHS compliant?
SMBJ60C uses the DO-214AA (SMB) surface-mount package with matte tin-plated leads, UL 94V-0 rated molding compound, and J-STD-020 Level 1 moisture sensitivity. It is fully RoHS compliant and halogen-free per IEC 61249-2-21, supporting lead-free reflow soldering processes without compromising thermal or mechanical reliability.
SMBJ60C 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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 107V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
SMBJ60C FAQ
1.How can I place an order for SMBJ60C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ60C 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 SMBJ60C reliable?
The price and inventory of SMBJ60C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ60C is usually 5 days.
3.What payment methods are accepted for SMBJ60C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ60C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ60C?
SMBJ60C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ60C 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 SMBJ60C?
For technical support, including SMBJ60C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ60C requirements.
6.How does Aetrix verify that SMBJ60C is sourced from the original manufacturer or authorized distributors?
All SMBJ60C 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 SMBJ60C meets industry standards.
7.What is the process for return or replacement of SMBJ60C?
All SMBJ60C units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ60C, 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 SMBJ60C part is unused and in its original packaging.
Return procedure for SMBJ60C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ60C Tags
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