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Taiwan Semiconductor Corporation SMBJ60CA
- Part No.:
- SMBJ60CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ60CA.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:58,999
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Product details
Overview
SMBJ60CA from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy ESD and surge protection in DC power lines and signal interfaces. It features a 60 V working stand-off voltage (VWM), 66.7–73.7 V breakdown voltage (VBR), and clamps transients to ≤96.8 V at 6.5 A peak impulse current (IPP), meeting ISO 7637-2 Pulse 1/2a/2b/3a/3b requirements for automotive and industrial systems.
For engineers reviewing the SMBJ60CA datasheet, SMBJ60CA pinout, SMBJ60CA application, or SMBJ60CA equivalent, key selection criteria include bidirectional clamping capability, 600 W peak pulse power rating, 10 ns response time, low leakage (<1 µA @ 60 V), and compliance with J-STD-020 Level 1 moisture sensitivity - critical for automated SMT assembly and harsh-environment reliability.
Technical Context
The SMBJ60CA implements a glass-passivated silicon junction optimized for fast transient suppression with sub-nanosecond response (typically <1.0 ps). Its bidirectional configuration enables symmetrical clamping across both polarities without external polarity management, supporting robust protection of balanced interfaces like RS-485, CAN FD, and Ethernet PHYs.
Thermally, it delivers RθJA = 55 °C/W and RθJC = 10 °C/W, enabling sustained operation up to TJ = +150 °C. The device sustains 100 A non-repetitive forward surge (IFSM) and maintains <1 µA blocking leakage above 10 V, ensuring minimal standby power impact in always-on circuits.
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 / 73.7 V @ 1 mA - Confirmed breakdown threshold range ensures reliable turn-on before system damage |
| VC @ IPP | 96.8 V @ 6.5 A - Clamping voltage under 10/1000 µs surge defines worst-case overvoltage seen by protected IC |
| PPK | 600 W - Peak pulse power handling per 10/1000 µs waveform supports IEC 61000-4-5 Level 4 immunity |
| ID @ VWM | <1 µA - Ultra-low leakage preserves battery life and avoids false triggering in high-impedance sensing paths |
| TJ max | +150 °C - Enables use in under-hood automotive, industrial motor drives, and enclosed power supplies |
| Package | DO-214AA (SMB) - Standardized SMT footprint compatible with IPC-7351B land patterns and reflow profiles |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking on one end; bidirectional symmetry means both terminals are functionally identical - no anode/cathode orientation required during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Bidirectional surge path | Connects to line being protected (e.g., CAN_H or VBUS); conducts equally in either direction during overvoltage |
| Terminal 2 | Bidirectional surge path | Connects to reference (e.g., CAN_L or GND); completes low-impedance shunt path to divert transient energy |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, eliminating parameter drift in thermal cycling environments |
| ISO 7637-2 compliance | Validated against automotive load-dump and inductive-switching transients (Pulse 1/2a/2b/3a/3b), reducing validation effort |
| J-STD-020 Level 1 moisture sensitivity | Enables standard SMT reflow without baking, lowering manufacturing cost and cycle time |
| UL 94V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation equipment |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS and green procurement mandates |
Applications
| Automotive Power Line Protection | Industrial RS-485 Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle infotainment power inputs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed between VBAT and GND to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤96.8 V, preventing latch-up or permanent damage to downstream 3.3 V/5 V logic while surviving 600 W pulses. | Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs exposed to EFT and cable coupling noise. IC Role / Device Role / Timing Role: Placed differentially across A/B bus lines to suppress common-mode transients without distorting signal integrity. Use Value: Sub-1 ns response ensures clamping occurs before data edge corruption; low capacitance (<100 pF) avoids signal rise-time degradation. |
| LED Driver Overvoltage Clamp | Smart Meter AC Mains Surge Suppression |
Use Scenario: Shielding constant-current LED drivers from inductive kickback when switching high-side MOSFETs. IC Role / Device Role / Timing Role: Connected across driver output to absorb stored inductor energy during turn-off transitions. Use Value: 600 W PPK rating handles repetitive 100 µs spikes; 60 V VWM aligns with typical 48 V LED string operating ranges. | Use Scenario: Front-end protection for Class I smart meters connected to 230 VAC mains via isolated DC-DC bias rails. IC Role / Device Role / Timing Role: Mounted on secondary-side 12 V bias rail to suppress coupled surges from primary-side MOV failure or lightning-induced coupling. Use Value: Bidirectional operation eliminates need for dual unidirectional devices; UL 94V-0 housing meets enclosure fire-safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60A | Unidirectional; same VWM/VBR/VC but requires correct polarity placement | Only suitable where circuit polarity is fixed and known (e.g., single-rail DC supply) | Select SMBJ60A only if polarity is guaranteed and board layout allows dedicated anode/cathode routing |
| SMCJ60CA | Same electrical specs but in larger DO-214AB (SMC) package; higher PPK (1500 W) | Used where higher surge margin is needed and PCB space permits larger footprint | Choose SMCJ60CA when system-level testing requires >600 W immunity or thermal derating headroom is critical |
Compared with SMBJ60A, SMBJ60CA eliminates polarity dependency and simplifies layout; compared with SMCJ60CA, it trades peak power for compactness and lower thermal mass - ideal for space-constrained automotive ECUs and portable industrial sensors.
Availability
SMBJ60CA is available at Aetrix Electronics and suitable for automotive electronics, industrial communication interfaces, LED lighting systems, and smart metering applications requiring stable component supply and full traceability.
Supply support for SMBJ60CA 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 management components since 1979.
The SMBJ series was developed specifically for high-reliability, high-volume SMT applications demanding ISO 7637-2 compliance, J-STD-020 Level 1 process compatibility, and consistent clamping performance across automotive and industrial temperature ranges.
FAQ
What does the 'CA' suffix indicate in SMBJ60CA?
The 'CA' suffix in SMBJ60CA denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions without requiring polarity-aware placement. Unlike unidirectional variants (e.g., SMBJ60A), SMBJ60CA has no anode or cathode designation and functions identically regardless of terminal orientation, simplifying layout and improving robustness in AC-coupled or differential signal paths.
Is SMBJ60CA compliant with automotive transient standards?
Yes, SMBJ60CA meets ISO 7637-2 requirements for Pulses 1, 2a, 2b, 3a, and 3b - covering key automotive transients including load dump, battery disconnect, and inductive switching events. Its 600 W peak pulse power rating, 96.8 V clamping voltage at 6.5 A, and −55 °C to +150 °C operating range make it suitable for engine control units, body electronics, and infotainment power rails per AEC-Q101 stress test guidelines.
What is the maximum clamping voltage of SMBJ60CA under surge conditions?
The maximum clamping voltage (VC) of SMBJ60CA is 96.8 V when subjected to a 10/1000 µs surge waveform at its rated peak impulse current of 6.5 A. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage imposed on protected circuitry during worst-case transient events - critical for ensuring downstream ICs with 100 V absolute maximum ratings remain within safe operating limits.
Does SMBJ60CA require special handling during PCB assembly?
No, SMBJ60CA is rated J-STD-020 Level 1 for moisture sensitivity and can be processed using standard lead-free reflow profiles without pre-baking. Its DO-214AA (SMB) package features matte tin-plated leads compliant with J-STD-002 solderability requirements, and the UL 94V-0 molding compound withstands typical reflow thermal cycles. No special flux or inert atmosphere is needed for reliable solder joint formation.
How does SMBJ60CA compare to SMBJ60A in circuit protection design?
SMBJ60CA provides identical electrical protection parameters (VWM = 60 V, VBR = 66.7–73.7 V, VC = 96.8 V) as SMBJ60A but operates bidirectionally - eliminating the risk of incorrect polarity placement and enabling use in AC or differential signal paths. While SMBJ60A must be oriented with cathode toward the most positive node, SMBJ60CA removes that constraint entirely, reducing assembly errors and increasing design flexibility in RS-485, CAN, and Ethernet protection schemes.
SMBJ60CA 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:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
SMBJ60CA FAQ
1.How can I place an order for SMBJ60CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ60CA 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 SMBJ60CA reliable?
The price and inventory of SMBJ60CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ60CA is usually 5 days.
3.What payment methods are accepted for SMBJ60CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ60CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ60CA?
SMBJ60CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ60CA 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 SMBJ60CA?
For technical support, including SMBJ60CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ60CA requirements.
6.How does Aetrix verify that SMBJ60CA is sourced from the original manufacturer or authorized distributors?
All SMBJ60CA 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 SMBJ60CA meets industry standards.
7.What is the process for return or replacement of SMBJ60CA?
All SMBJ60CA units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ60CA, 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 SMBJ60CA part is unused and in its original packaging.
Return procedure for SMBJ60CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ60CA Tags
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