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Taiwan Semiconductor Corporation SMBJ16C
- Part No.:
- SMBJ16C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16C.pdf
- Description:
- 600W, 19.8V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,244
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Product details
Overview
SMBJ16C from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy ESD and surge protection in automotive and industrial power rails. It features a 16V working stand-off voltage (VWM), 17.8–21.8V breakdown voltage (VBR), 28.8V maximum clamping voltage (VC) at 21.8A peak pulse current (IPP), and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements.
For engineers reviewing the SMBJ16C datasheet, SMBJ16C pinout, SMBJ16C application, or SMBJ16C equivalent, key selection criteria include clamping performance under 10/1000µs transients, leakage current <1µA above 10V, junction temperature range (−55°C to +150°C), and compliance with automotive-grade surge standards.
Technical Context
The SMBJ16C operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its VBR (17.8–21.8V) to clamp transients within nanoseconds. Its glass-passivated junction ensures stable breakdown and low leakage (<1µA at VWM), while the DO-214AA package supports automated placement and meets JESD201 Class 2 whisker resistance.
Thermal design is enabled by RθJC = 10°C/W and RθJA = 55°C/W, allowing reliable operation up to 150°C junction temperature. The device sustains non-repetitive 600W peak pulse power (10/1000µs waveform) and handles 100A forward surge current (8.3ms half-sine), making it suitable for inductive load switching and battery-line protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1mA | 17.8–21.8 V - Breakdown threshold defining turn-on sensitivity to transients |
| VC @ IPP=21.8A | 28.8 V - Clamped voltage during 10/1000µs surge, limiting downstream stress |
| PPK | 600 W - Peak pulse power handling capability per single 10/1000µs event |
| ID @ VWM | <1 µA - Low leakage preserves system efficiency and signal integrity |
| TJ Range | −55°C to +150°C - Enables deployment in under-hood automotive and industrial environments |
| Package | DO-214AA (SMB) - Surface-mount footprint compatible with standard reflow processes |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking polarity, UL 94V-0 rated compound, and 0.090g mass. Designed for high-volume SMT assembly and compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-side return path in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12V rail); cathode band identifies this pin |
Key Features
| Feature | Design Value |
|---|---|
| Clamping response time | <1.0 ps - Enables suppression of ultrafast ESD events before IC damage occurs |
| ISO 7637-2 compliance | Pulse 1/2a/2b/3a/3b - Validated for automotive power-line transient immunity testing |
| Glass passivation | Stable VBR over life cycle and temperature - Reduces parameter drift in harsh environments |
| Moisture sensitivity | Level 1 (J-STD-020) - No dry-pack or bake required prior to reflow |
| RoHS & halogen-free | Compliant per IEC 61249-2-21 - Supports environmental and regulatory requirements for global OEMs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges before they reach LDOs or microcontrollers. Use Value: Limits clamped voltage to 28.8V during 21.8A transients, preventing overvoltage failure of 3.3V/5V logic supplies downstream. |
Use Scenario: Shielding analog sensor inputs (e.g., pressure, temperature) from ESD coupling via cables. IC Role / Device Role / Timing Role: Bidirectional protection (via SMBJ16CA variant) across differential pairs or single-ended lines. Use Value: Sub-1ps response captures fast ESD pulses before propagation into precision ADC front-ends. |
| LED Driver Output Protection | PLC Digital I/O Protection |
Use Scenario: Safeguarding constant-current LED driver outputs from inductive kickback during hot-plug events. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-output to absorb reverse energy. Use Value: Withstands 100A 8.3ms forward surge, enabling robust protection without derating in high-current lighting systems. |
Use Scenario: Guarding 24V digital input modules against field-wiring transients and lightning-induced surges. IC Role / Device Role / Timing Role: TVS placed across input terminals to shunt energy before optocoupler or Schmitt trigger input stage. Use Value: 600W peak power rating and −55°C to +150°C operation ensure reliability in outdoor and factory-floor installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ16A | Same DO-214AC (SMA) package; slightly higher VC (29.2V) and lower IPP (20.0A) | Lower power density due to smaller package; less thermal margin in sustained surge scenarios | Prefer SMBJ16C where board space allows DO-214AA and higher IPP/thermal performance is needed |
| ON Semiconductor 1.5SMC16A | DO-214AB (SMC) package; higher PPK (1500W); VC = 26.0V at 38.8A | Larger footprint and higher clamping current capacity - suited for higher-energy industrial transients | Select SMBJ16C when 600W rating suffices and DO-214AA size constraints apply |
Compared with SMAJ16A and 1.5SMC16A, the SMBJ16C delivers optimal balance of clamping voltage (28.8V), peak current (21.8A), and thermal resistance (RθJA = 55°C/W) in the compact DO-214AA form factor - ideal for space-constrained automotive and industrial PCBs requiring certified ISO 7637-2 immunity.
Availability
SMBJ16C is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and LED lighting applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ16C 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, serving global automotive, industrial, and consumer markets since 1979.
The SMBJ series was developed specifically for high-reliability transient suppression in automotive power distribution networks and industrial equipment, emphasizing ISO 7637-2 compliance, low leakage, and robust thermal performance in surface-mount packages.
FAQ
What is the clamping voltage of SMBJ16C at its rated peak pulse current?
The SMBJ16C has a maximum clamping voltage (VC) of 28.8 V when subjected to its specified peak impulse current (IPP) of 21.8 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for downstream circuitry during surge events. The SMBJ16C maintains this clamping performance across its full operating temperature range.
Is SMBJ16C unidirectional or bidirectional, and how is polarity identified?
SMBJ16C is a unidirectional TVS diode, intended for DC line protection where reverse conduction is not required. Polarity is marked by a cathode band on the DO-214AA package body - the banded end connects to the protected line (cathode), while the opposite end connects to ground (anode). For bidirectional use, the SMBJ16CA variant must be selected.
Does SMBJ16C meet automotive surge immunity standards?
Yes, SMBJ16C meets ISO 7637-2 Pulse 1 (inductive load disconnect), Pulse 2a (sudden load removal), Pulse 2b (supply interruption), Pulse 3a (switching noise), and Pulse 3b (capacitive discharge) test requirements. Its 600W peak power rating, low clamping voltage, and −55°C to +150°C junction temperature range make it suitable for under-hood and body-control module applications.
What is the maximum leakage current specification for SMBJ16C at its working voltage?
The SMBJ16C specifies a maximum blocking leakage current (ID) of less than 1 µA when biased at its working stand-off voltage (VWM) of 16 V. This low leakage ensures minimal power loss and avoids false triggering in high-impedance circuits such as sensor bias networks or battery-monitoring paths.
Can SMBJ16C be used in place of SMBJ16A, and what is the key difference?
No - SMBJ16C and SMBJ16A are distinct variants: SMBJ16C is unidirectional with tighter VBR tolerance (17.8–21.8 V), while SMBJ16A is also unidirectional but has a lower VBR range (17.8–19.7 V) and slightly lower clamping voltage (26.0 V). Substituting one for the other requires verification of system-level clamping margin and surge current requirements, as their electrical profiles are not interchangeable.
SMBJ16C 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 21.8A
- 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)
SMBJ16C FAQ
1.How can I place an order for SMBJ16C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16C 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 SMBJ16C reliable?
The price and inventory of SMBJ16C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16C is usually 5 days.
3.What payment methods are accepted for SMBJ16C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16C?
SMBJ16C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16C 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 SMBJ16C?
For technical support, including SMBJ16C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16C requirements.
6.How does Aetrix verify that SMBJ16C is sourced from the original manufacturer or authorized distributors?
All SMBJ16C 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 SMBJ16C meets industry standards.
7.What is the process for return or replacement of SMBJ16C?
All SMBJ16C units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16C, 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 SMBJ16C part is unused and in its original packaging.
Return procedure for SMBJ16C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16C Tags
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