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Taiwan Semiconductor Corporation SMBJ160CH
- Part No.:
- SMBJ160CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CH.pdf
- Description:
- 600W, 198V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:8,491
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Product details
Overview
SMBJ160CH from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection in automotive and industrial power rails. It features a 160 V working stand-off voltage (VWM), 178–218 V breakdown voltage (VBR), 287 V maximum clamping voltage (VC) at 2.2 A peak impulse current (IPP), and 600 W peak pulse power rating with sub-1 ps response time.
For engineers reviewing the SMBJ160CH datasheet, SMBJ160CH pinout, SMBJ160CH application, or SMBJ160CH equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, AEC-Q101 qualification status, junction-to-ambient thermal resistance (55 °C/W), and unidirectional polarity marking for correct PCB orientation.
Technical Context
The SMBJ160CH implements a glass-passivated silicon junction optimized for fast transient suppression in 12 V and 24 V automotive systems. Its unidirectional configuration provides reverse-biased clamping only, with forward voltage drop of 5.0 V at 50 A (per spec note for SMBJ100H–SMBJ170H series), and leakage current ≤1 µA above 10 V.
Thermally, it supports operation from –55 °C to +150 °C junction temperature, with 10 °C/W junction-to-case and 55 °C/W junction-to-ambient thermal resistance. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 178–218 V @ 1 mA - Confirmed breakdown threshold range defining turn-on consistency |
| VC @ IPP | 287 V @ 2.2 A - Clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPK | 600 W - Peak pulse power handling per single 10/1000 µs waveform |
| IR @ VWM | <1 µA - Minimal leakage ensures low standby power loss in high-impedance circuits |
| TJ max | +150 °C - Enables use in under-hood automotive environments without derating |
| Response time | <1.0 ps - Sub-picosecond junction response ensures protection before IC damage occurs |
Pinout & Package
DO-214AA (SMB) surface-mount package with matte tin-plated leads, polarity indicated by cathode band. Weight: 0.090 g. UL 94V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to system ground or low-side return in unidirectional TVS placement |
| Cathode | Clamping node | Connected to protected line (e.g., battery rail); cathode band marks this terminal on PCB |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| ISO 7637-2 compliance | Guaranteed immunity against standardized automotive transients (Pulse 1, 2a, 2b, 3a, 3b) |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal stress |
| Fast response <1 ps | Enables protection of high-speed interfaces and microcontrollers before latch-up or gate oxide failure |
| Moisture sensitivity level 1 | Allows unlimited floor life and reflow without baking, simplifying SMT assembly |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping surges above 160 V. Use Value: Limits voltage to ≤287 V during 10/1000 µs pulses, preventing damage to upstream regulators and MCU power pins. | Use Scenario: Safeguarding PLC I/O modules connected to inductive solenoid loads. IC Role / Device Role / Timing Role: Mounted across relay coil terminals to absorb inductive kickback energy. Use Value: Dissipates up to 600 W peak energy within nanoseconds, eliminating arcing and contact wear. |
| LED Driver Input Stage | Telecom Power Interface |
Use Scenario: Shielding constant-current LED drivers from conducted EFT and surge events. IC Role / Device Role / Timing Role: Placed at DC input before bulk capacitor to clamp line transients before filtering. Use Value: Maintains <1 µA leakage at 160 V, avoiding efficiency loss while enabling fast clamping. | Use Scenario: Front-end protection for PoE-powered network switches exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional variant not used; SMBJ160CH applied in unidirectional DC bias configuration on 48 V supply lines. Use Value: Withstands repeated 600 W pulses without degradation, supporting multi-year field deployment. |
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 SMAJ160A | Same DO-214AC (SMA) package; 287 V VC @ 2.2 A; 500 W PPK (vs. 600 W) | Lower peak power rating limits use in high-energy load-dump scenarios | Select when footprint compatibility with SMA is required and surge energy is ≤500 W |
| ON Semiconductor 1.5SMC160A | DO-214AB (SMC) package; 287 V VC @ 2.2 A; 1500 W PPK; higher thermal mass | Larger SMC footprint requires PCB redesign but enables higher surge repetition rates | Select when higher power cycling endurance is needed and board space permits larger package |
Compared with SMBJ160CH, SMAJ160A offers identical clamping but reduced surge capacity and smaller package, while 1.5SMC160A delivers 2.5× peak power in a larger footprint-making SMBJ160CH optimal for space-constrained 600 W automotive protection.
Availability
SMBJ160CH is available at Aetrix Electronics and suitable for automotive control units, industrial motor drives, LED lighting systems, and telecom power interfaces requiring stable component supply across extended production lifecycles.
Supply support for SMBJ160CH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global AEC-Q101 qualification capabilities.
The SMBJH series was developed specifically for automotive-grade transient suppression, targeting ISO 7637-2 compliance, high-reliability under-hood operation, and automated SMT compatibility in DO-214AA packaging.
FAQ
What is the polarity configuration of SMBJ160CH?
SMBJ160CH is a unidirectional TVS diode, with cathode marked by a band on the DO-214AA package. It conducts only in reverse bias during overvoltage events and blocks forward current up to 3.5–5.0 V depending on voltage grade. The SMBJ160CH must be oriented with cathode toward the protected line and anode to ground for proper clamping function.
Does SMBJ160CH meet AEC-Q101 requirements?
Yes, SMBJ160CH is explicitly AEC-Q101 qualified per the manufacturer's datasheet (Version A2102). This includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for automotive electronic control units and under-hood applications.
What is the maximum clamping voltage of SMBJ160CH and at what test condition?
The maximum clamping voltage of SMBJ160CH is 287 V, measured at a peak impulse current (IPP) of 2.2 A using the standard 10/1000 µs double-exponential surge waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events.
Can SMBJ160CH be used in bidirectional applications?
No - SMBJ160CH is unidirectional. For bidirectional protection, the SMBJ160AH variant (with "AH" suffix) must be selected. The "CH" suffix denotes unidirectional configuration with cathode marking; using SMBJ160CH in AC or bipolar signal paths will result in unintended forward conduction or no clamping.
What is the thermal resistance profile of SMBJ160CH?
SMBJ160CH has a junction-to-case thermal resistance (RθJC) of 10 °C/W and junction-to-ambient thermal resistance (RθJA) of 55 °C/W. These values enable effective heat dissipation in PCB layouts with adequate copper pour, supporting continuous operation up to +150 °C junction temperature under specified power derating curves.
SMBJ160CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJH
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 287V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ160CH FAQ
1.How can I place an order for SMBJ160CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CH 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 SMBJ160CH reliable?
The price and inventory of SMBJ160CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160CH is usually 5 days.
3.What payment methods are accepted for SMBJ160CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CH?
SMBJ160CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CH 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 SMBJ160CH?
For technical support, including SMBJ160CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CH requirements.
6.How does Aetrix verify that SMBJ160CH is sourced from the original manufacturer or authorized distributors?
All SMBJ160CH 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 SMBJ160CH meets industry standards.
7.What is the process for return or replacement of SMBJ160CH?
All SMBJ160CH units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CH, 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 SMBJ160CH part is unused and in its original packaging.
Return procedure for SMBJ160CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CH Tags
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