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Vishay General Semiconductor - Diodes Division SMBJ160CAHE3_A/I
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- Part No.:
- SMBJ160CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CAHE3_A/I.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,058
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Product details
Overview
SMBJ160CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 160 V standoff voltage (VWM), 178–197 V breakdown voltage (VBR), 600 W peak pulse power (10/1000 μs), 2.3 A peak pulse current (IPPM), and clamps to ≤259 V at rated surge. It protects MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMBJ160CAHE3_A/I datasheet, SMBJ160CAHE3_A/I pinout, SMBJ160CAHE3_A/I application, or SMBJ160CAHE3_A/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and bidirectional clamping behavior critical for surge immunity design in automotive and industrial systems.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the 10/1000 μs waveform rating reflects real-world lightning and inductive-switching surge conditions per ANSI/IEEE C62.35.
The device is qualified to AEC-Q101 for automotive use and meets MSL Level 1 (260 °C reflow peak), with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Thermal performance is defined by RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W, supporting reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 120–150 V DC bus or AC line applications. |
| VBR (min/max) | 178 V / 197 V at IT = 1.0 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | ≤259 V at IPPM = 2.3 A - Clamped voltage under 600 W 10/1000 μs surge; limits stress on downstream components. |
| PPPM | 600 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV) surge testing when properly laid out. |
| ID @ VWM | ≤1.0 μA - Ultra-low reverse leakage at standoff voltage; minimizes standby power loss in battery-backed or high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables deployment in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on standard 5 mm × 5 mm copper pads; informs heatsinking requirements for repetitive surge duty. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), cathode band absent per bidirectional designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either polarity) | Accepts surge current during positive or negative overvoltage; symmetrical conduction path with cathode. |
| Cathode | Transient current exit (either polarity) | Completes bidirectional clamping loop; identical electrical role to anode under reverse bias due to symmetric structure. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for engine control units and ADAS power rails. |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5-compliant surges without degradation; enables single-device protection for 24 V/48 V industrial buses. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping - critical for safeguarding 200 V-rated MOSFETs or 3.3 V logic interfaces via series impedance. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without pre-baking or special handling. |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage across temperature and lifetime - reduces field failure risk in harsh environments. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and microcontroller I/O against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed across relay coil terminals or MCU input pins. Use Value: Limits transient voltage to ≤259 V, preventing latch-up or permanent damage to 3.3 V/5 V logic and 200 V MOSFETs in 24 V systems. |
Use Scenario: Surge suppression on LIN bus lines and power inputs in door modules, seat controllers, and lighting ECUs. IC Role / Device Role / Timing Role: Standoff-clamp protector on supply rail and data lines, leveraging AEC-Q101 qualification and bidirectional symmetry. Use Value: Maintains <1.0 μA leakage at 160 V system-level transients, ensuring low-power sleep mode integrity and ESD robustness per ISO 10605. |
| Telecom Power Feeds | Renewable Energy Inverters |
|
Use Scenario: Input-stage protection for PoE-powered devices and remote radio units exposed to lightning-induced surges on 48 V DC feeds. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converters and Ethernet PHYs. Use Value: Delivers 600 W surge handling with ≤259 V clamping, meeting IEC 61000-4-5 Level 4 requirements without cascaded protection stages. |
Use Scenario: DC link protection in solar string inverters where PV array transients couple into MPPT controller power rails. IC Role / Device Role / Timing Role: High-voltage standoff TVS placed between PV+ and PV− inputs to clamp differential-mode surges. Use Value: Withstands −55 to +150 °C ambient operation and maintains VBR stability across temperature, supporting outdoor uncooled enclosure 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 |
|---|---|---|---|
| SMBJ160CA-M3/5B | Halogen-free, RoHS-compliant variant; identical VWM, VBR, PPPM, and package; same AEC-Q101 qualification. | No functional difference; selected when halogen-free material compliance is required for end-product environmental certification. | Direct drop-in replacement where halogen-free bill-of-materials is mandated. |
| SMCJ160CAHE3_A/I | Same VWM/VBR/PPPM ratings but in larger SMC (DO-214AB) package; higher RθJA (60 °C/W vs. 100 °C/W); 1500 W peak pulse power. | Used where higher surge energy absorption (>600 W) or lower thermal resistance is needed; requires PCB layout change. | Choose when system-level surge testing exceeds 600 W or board space allows larger footprint for improved thermal margin. |
Compared with SMBJ160CAHE3_A/I, the SMBJ160CA-M3/5B offers identical electrical and qualification specs in a halogen-free build, while the SMCJ160CAHE3_A/I provides higher surge capacity and better thermal performance at the cost of larger PCB area - selection depends on environmental compliance needs and surge energy budget.
Availability
SMBJ160CAHE3_A/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and renewable energy inverters requiring stable component supply, AEC-Q101 validation, and bidirectional 160 V transient suppression.
Supply support for SMBJ160CAHE3_A/I 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial automation, and telecom infrastructure where bidirectional clamping and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ160CAHE3_A/I under rated surge conditions?
The SMBJ160CAHE3_A/I clamps to a maximum of 259 V when subjected to its rated 2.3 A peak pulse current (IPPM) using the standardized 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024, Document Number 88392. The clamping voltage directly determines the voltage stress imposed on protected downstream components such as MOSFETs or interface ICs, making it a critical parameter for circuit survivability during surge events. SMBJ160CAHE3_A/I maintains this clamping performance across its full operating temperature range.
Is SMBJ160CAHE3_A/I suitable for automotive applications?
Yes, SMBJ160CAHE3_A/I is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet under Mechanical Data and Ordering Information sections. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock - validating its suitability for under-hood and cabin-mounted automotive electronics. The device's −55 to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and bidirectional clamping behavior make SMBJ160CAHE3_A/I appropriate for body control modules, lighting drivers, and infotainment power rails. Its RoHS compliance and HE3 suffix confirm automotive-grade material and process control.
How does the bidirectional nature of SMBJ160CAHE3_A/I affect its circuit placement?
The bidirectional construction of SMBJ160CAHE3_A/I eliminates polarity sensitivity, allowing it to be placed across any two nodes subject to differential transients - such as AC signal lines, transformer-coupled interfaces, or floating power rails - without regard to anode/cathode orientation. Unlike unidirectional TVS diodes, SMBJ160CAHE3_A/I has no marking band and conducts identically in both directions above its breakdown threshold. This simplifies PCB layout, reduces BOM complexity, and avoids field failures caused by incorrect orientation during assembly. Its symmetric VBR (178–197 V) and VC (≤259 V) ensure consistent protection regardless of surge polarity.
What is the thermal resistance of SMBJ160CAHE3_A/I, and how does it impact layout?
SMBJ160CAHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay thermal characteristics table. This value assumes minimal copper area and guides minimum pad sizing for reliable operation under repetitive surge conditions. To reduce thermal stress, designers should maximize copper pour connected to both terminals and consider internal ground/power planes. The device's RθJL of 20 °C/W indicates efficient heat transfer to PCB traces, but sustained power dissipation remains limited to 5.0 W - meaning SMBJ160CAHE3_A/I is intended for transient, not continuous, overload protection.
Does SMBJ160CAHE3_A/I meet industry surge immunity standards?
SMBJ160CAHE3_A/I is designed to support compliance with IEC 61000-4-5 (surge immunity) and ISO 10605 (ESD) when implemented with proper PCB layout - including short, low-inductance traces and adequate copper pour. Its 600 W peak pulse power rating corresponds to Level 4 (4 kV line-to-line, 2 kV line-to-ground) testing under IEC 61000-4-5 using the 10/1000 μs waveform. While the device itself is not "certified" to these standards, its published parameters (VWM = 160 V, VC ≤ 259 V, IPPM = 2.3 A) provide the necessary headroom to pass testing in typical 24 V and 48 V systems. System-level validation remains the responsibility of the end designer, but SMBJ160CAHE3_A/I delivers the foundational clamping performance required.
SMBJ160CAHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 259V
- Current - Peak Pulse (10/1000µs):
- 2.3A
- 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 (SMBJ)
SMBJ160CAHE3_A/I FAQ
1.How can I place an order for SMBJ160CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CAHE3_A/I 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 SMBJ160CAHE3_A/I reliable?
The price and inventory of SMBJ160CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ160CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CAHE3_A/I?
SMBJ160CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CAHE3_A/I 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 SMBJ160CAHE3_A/I?
For technical support, including SMBJ160CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ160CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ160CAHE3_A/I 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 SMBJ160CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ160CAHE3_A/I?
All SMBJ160CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CAHE3_A/I, 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 SMBJ160CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ160CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CAHE3_A/I Tags
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