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Taiwan Semiconductor Corporation SMBJ5V0CA
- Part No.:
- SMBJ5V0CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5V0CA.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:17,493
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Product details
Overview
SMBJ5V0CA from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy ESD and surge protection in DC power rails and signal lines. It features a 5.0 V working stand-off voltage (VWM), 6.4–7.3 V breakdown voltage (VBR), 9.2 V maximum clamping voltage (VC) at 800 A peak impulse current, and 600 W peak pulse power rating with sub-1 ps response time. It is used in automotive infotainment power inputs to clamp ISO 7637-2 Pulse 1/2a/2b transients.
For engineers reviewing the SMBJ5V0CA datasheet, SMBJ5V0CA pinout, SMBJ5V0CA application, or SMBJ5V0CA equivalent, key selection criteria include bidirectional clamping capability, DO-214AA (SMB) package compatibility, low leakage (<5 µA at 5.0 V), compliance with ISO 7637-2, and junction temperature range of –55°C to +150°C.
Technical Context
The SMBJ5V0CA is a silicon avalanche diode configured as a bidirectional TVS device, enabling symmetrical clamping in both polarities without external polarity management. Its glass-passivated junction ensures stable VBR and low leakage, while its 10/1000 µs waveform-rated 600 W peak power handling supports robust immunity against automotive load-dump and inductive switching events.
Thermal performance is defined by RθJC = 10°C/W and RθJA = 55°C/W, allowing reliable operation up to TJ = 150°C. The device meets J-STD-020 moisture sensitivity level 1 and is halogen-free per IEC 61249-2-21, supporting lead-free reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse voltage before clamping begins; sets operating margin above system nominal voltage. |
| VBR min/max | 6.4 V / 7.3 V @ 10 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC @ IPP | 9.2 V @ 800 A - Clamped voltage under full 600 W surge; limits downstream IC stress during ISO 7637-2 Pulse 1. |
| ID @ VWM | <5 µA - Low leakage preserves battery life in always-on automotive modules. |
| PPK | 600 W - Peak pulse power rating per 10/1000 µs waveform; qualifies for high-energy surge standards. |
| TJ max | +150°C - Maximum junction temperature; enables under-hood deployment without derating in ambient up to +105°C. |
| Package | DO-214AA (SMB) - Industry-standard surface-mount outline; compatible with automated placement and IPC-7351B footprints. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (bidirectional symmetry means no functional anode/cathode distinction; band denotes terminal 1 per JEDEC standard).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | One end of symmetrical avalanche junction; connects to protected line (e.g., CAN_H or +12V rail). |
| Terminal 2 | Anode/Cathode (bidirectional) | Other end of symmetrical junction; connects to reference (e.g., CAN_L or chassis ground). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of differential buses (e.g., CAN, RS-485) without polarity awareness or external components. |
| Sub-1 ps response time | Clamps ESD events before sensitive logic thresholds are exceeded, meeting IEC 61000-4-2 Level 4 (15 kV air, 8 kV contact). |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling), critical for automotive ECUs. |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow; supports standard SMT assembly without floor-life constraints. |
| Halogen-free & RoHS | Meets automotive ELV directive and IPC-1752A reporting requirements for sustainable supply chains. |
Applications
| Automotive Power Rail Protection | CAN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting 12 V power input of body control module (BCM) against load-dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between VBAT and GND, absorbing energy before it reaches DC-DC converter input. Use Value: Limits peak voltage to ≤9.2 V during 800 A transients, preventing overvoltage damage to 5 V/3.3 V LDOs and microcontrollers. | Use Scenario: Safeguarding high-speed CAN FD transceivers against ESD and coupled noise on vehicle wiring harnesses. IC Role / Device Role / Timing Role: Differential-line TVS connected across CAN_H and CAN_L, providing symmetrical clamping without disrupting common-mode signaling. Use Value: Maintains signal integrity by clamping transients within 1 ps while adding <1 pF junction capacitance, avoiding data rate degradation. |
| Industrial Sensor Interface Protection | LED Driver Input Surge Mitigation |
Use Scenario: Shielding 4–20 mA analog sensor loop inputs in factory automation PLCs from field-wiring induced surges. IC Role / Device Role / Timing Role: Series-connected TVS on loop supply line, referenced to local ground, suppressing fast transients from motor drives or relay coils. Use Value: Withstands repeated 600 W pulses while maintaining <5 µA leakage, ensuring loop accuracy and long-term calibration stability. | Use Scenario: Securing constant-current LED driver IC inputs against AC line surges and lightning-induced spikes in outdoor lighting fixtures. IC Role / Device Role / Timing Role: Primary-stage TVS on rectified DC bus, shunting surge energy before it reaches MOSFET gate drivers and PWM controllers. Use Value: Clamps 10/1000 µs surges to 9.2 V, protecting 12 V-rated gate drivers and enabling use of lower-voltage, cost-optimized FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA (ON Semiconductor) | VBR min/max = 6.4–7.3 V, VC = 9.2 V @ 800 A - identical clamping performance; same DO-214AA package. | No functional difference; validated for identical ISO 7637-2 Pulse profiles and automotive temperature cycling. | Select when dual-sourcing is required or ON Semi's supply chain offers better lead time for high-volume automotive programs. |
| P6SMB5.0CA (Littelfuse) | VBR min/max = 6.4–7.3 V, VC = 9.2 V @ 800 A - matches SMBJ5V0CA electrical specs; also DO-214AA. | Same bidirectional behavior and thermal ratings; differs only in marking code and traceability documentation format. | Choose for legacy designs qualified with P6SMB series or where Littelfuse's AEC-Q200 test reports are pre-approved. |
Compared with SMBJ5V0CA, SMBJ5.0CA offers identical electrical and mechanical specifications with equivalent automotive qualification scope, while P6SMB5.0CA provides functionally interchangeable performance and package but requires separate validation of PPAP documentation for OEM release.
Availability
SMBJ5V0CA is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial sensor interface hardening, and LED lighting surge mitigation requiring stable component supply across multi-year production cycles.
Supply support for SMBJ5V0CA 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The SMBJ series was developed specifically for high-reliability transient suppression in harsh environments, emphasizing ISO 7637-2 compliance, extended temperature operation, and automated assembly readiness.
FAQ
What is the polarity configuration of SMBJ5V0CA?
SMBJ5V0CA is a bidirectional TVS diode, meaning it functions identically in both forward and reverse bias directions. Its DO-214AA package includes a cathode band for mechanical orientation only - the device has no functional polarity and protects symmetrically across terminals. This makes SMBJ5V0CA ideal for differential signal lines like CAN or RS-485 where polarity cannot be assumed.
Does SMBJ5V0CA meet automotive surge immunity standards?
Yes, SMBJ5V0CA meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling). Its 600 W peak pulse power rating, 9.2 V clamping voltage at 800 A, and –55°C to +150°C operating range make it suitable for front-end protection in automotive ECUs, infotainment systems, and ADAS modules.
What is the maximum clamping voltage of SMBJ5V0CA under surge conditions?
The maximum clamping voltage (VC) of SMBJ5V0CA is 9.2 V when subjected to an 800 A peak impulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry sees no more than 9.2 V during worst-case transients, protecting 5 V and 3.3 V logic interfaces effectively.
Can SMBJ5V0CA replace unidirectional TVS diodes like SMBJ5.0A?
No - SMBJ5V0CA is strictly bidirectional and not a drop-in replacement for unidirectional parts such as SMBJ5.0A. While both share the same VWM (5.0 V) and VBR range (6.4–7.3 V), SMBJ5.0A conducts only in reverse bias and requires correct polarity placement. Using SMBJ5V0CA in place of SMBJ5.0A introduces no functional risk but may increase cost unnecessarily if unidirectional behavior is sufficient.
What is the junction capacitance of SMBJ5V0CA at zero bias?
The SMBJ5V0CA exhibits a typical junction capacitance (CJ) of approximately 1,200 pF at 0 V bias and 1 MHz, as shown in Taiwan Semiconductor's characteristic curves. This value decreases significantly at higher reverse bias voltages - e.g., to ~300 pF at VWM = 5.0 V - making SMBJ5V0CA suitable for low-speed power and signal line protection but not RF or high-speed data lines above 10 Mbps.
SMBJ5V0CA 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- 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)
SMBJ5V0CA FAQ
1.How can I place an order for SMBJ5V0CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5V0CA 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 SMBJ5V0CA reliable?
The price and inventory of SMBJ5V0CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5V0CA is usually 5 days.
3.What payment methods are accepted for SMBJ5V0CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5V0CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5V0CA?
SMBJ5V0CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5V0CA 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 SMBJ5V0CA?
For technical support, including SMBJ5V0CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5V0CA requirements.
6.How does Aetrix verify that SMBJ5V0CA is sourced from the original manufacturer or authorized distributors?
All SMBJ5V0CA 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 SMBJ5V0CA meets industry standards.
7.What is the process for return or replacement of SMBJ5V0CA?
All SMBJ5V0CA units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5V0CA, 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 SMBJ5V0CA part is unused and in its original packaging.
Return procedure for SMBJ5V0CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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