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Vishay General Semiconductor - Diodes Division SMBJ160CAHE3_A/H
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- Part No.:
- SMBJ160CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CAHE3_A/H.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,290
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Product details
Overview
SMBJ160CAHE3_A/H 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 a 160 V stand-off voltage (VWM), 259 A peak pulse current (IPPM) at 10/1000 µs, 25.9 V maximum clamping voltage (VC), 600 W peak pulse power rating, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBJ160CAHE3_A/H datasheet, SMBJ160CAHE3_A/H pinout, SMBJ160CAHE3_A/H application, or SMBJ160CAHE3_A/H equivalent, this device is selected for robust overvoltage protection in automotive power distribution modules, industrial sensor interfaces, and telecom line-card surge immunity where bidirectional clamping, low clamping ratio, and MSL Level 1 solderability are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified between 178 V and 197 V at 1 mA test current. Its clamping behavior is defined by a 25.9 V VC at 259 A IPPM under standardized 10/1000 µs waveform conditions, enabling predictable transient energy absorption without conduction during normal operation.
Thermal performance is characterized by 100 °C/W junction-to-ambient thermal resistance (RθJA) on standard 0.2" × 0.2" copper pads and 20 °C/W junction-to-lead (RθJL), supporting reliable operation up to +150 °C junction temperature. The device meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12–48 V DC systems with transient headroom. |
| VBR (min/max) | 178 V / 197 V at 1 mA - Confirmed bidirectional breakdown range; ensures symmetrical clamping onset across polarity reversals. |
| VC @ IPPM | 25.9 V at 259 A - Measured clamping voltage under 10/1000 µs surge; determines protected circuit's maximum stress voltage during ESD or lightning events. |
| PPPM | 600 W - Peak pulse power handling capability; enables suppression of high-energy transients common in automotive load-dump or inductive switching. |
| ID @ VWM | 1.0 µA - Reverse leakage at rated stand-off voltage; ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in engine control units, power converters, and industrial enclosures without derating. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are functionally identical due to symmetrical construction; both leads serve as interchangeable surge-current paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry (positive half-cycle) | Accepts transient current during positive voltage excursions; connects directly to protected line without polarity dependency. |
| Cathode | Surge current entry (negative half-cycle) | Accepts transient current during negative voltage excursions; electrically identical to Anode in bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use per stress test requirements including temperature cycling, HTRB, and ESD; supports PPAP documentation. |
| 600 W peak pulse power | Handles high-energy transients from ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge events without degradation. |
| Low clamping voltage (25.9 V) | Clamps 160 V-rated line to ≤25.9 V during 259 A surge-providing >6× overvoltage margin for 3.3 V/5 V logic interfaces downstream. |
| MSL Level 1, 260 °C peak | Compatible with standard lead-free reflow profiles without pre-baking; eliminates moisture-related popcorning risk in production. |
| Glass passivated junction | Ensures stable VBR and low leakage over lifetime; resists humidity-induced parameter drift in harsh industrial environments. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
|
Use Scenario: Protection of 12 V/24 V battery-fed ECUs against load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element placed at main power input, shunting surge current away from downstream regulators and microcontrollers. Use Value: Limits voltage seen by downstream LDOs and MCUs to ≤25.9 V during 100 V+ transients, preventing latch-up and permanent damage. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors from ESD and field-wiring induced surges. IC Role / Device Role / Timing Role: Bidirectional shunt protector mounted at connector interface, absorbing ±8 kV contact ESD (IEC 61000-4-2) and fast transients. Use Value: Maintains signal integrity by clamping transients within 1 ns response time while adding <1 pF capacitance-no bandwidth degradation. |
| Telecom Line Cards | Renewable Energy Inverters |
|
Use Scenario: Surge protection on Ethernet PHY power rails (e.g., PoE midspan injectors) exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary GDT or MOV, providing precise clamping to protect sensitive PHY ICs. Use Value: Delivers 25.9 V clamping at 259 A-enabling coordination with upstream protectors to meet IEC 61000-4-5 Level 4 (4 kV line-earth). |
Use Scenario: DC-link overvoltage suppression in solar string inverters subjected to rapid PV array voltage spikes during cloud-edge transitions. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC bus capacitors, clamping voltage overshoots exceeding 160 V nominal bus rating. Use Value: Absorbs 600 W transient energy without thermal runaway, preserving capacitor lifetime and preventing IGBT gate driver failure. |
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-E3/52 | Same electrical specs and SMB package, but RoHS-compliant commercial grade without AEC-Q101 qualification; no automotive stress testing. | Limited to non-automotive industrial or consumer applications where qualification traceability is not mandated. | Select when cost sensitivity outweighs automotive qualification requirements and full lifecycle support is not needed. |
| SMCJ160CAHE3_A/H | Same VWM, VBR, and VC specs but in larger SMC (DO-214AB) package; higher RθJA (65 °C/W) and 1500 W PPPM rating. | Better suited for higher-power surge environments (e.g., motor drives) where PCB space allows larger footprint and thermal mass. | Choose when system-level surge tests exceed 600 W or when board layout permits larger package for improved thermal margin. |
Compared with SMBJ160CAHE3_A/H, SMBJ160CA-E3/52 omits AEC-Q101 validation and traceability for automotive use, while SMCJ160CAHE3_A/H trades compact SMB size for higher power handling and lower thermal resistance-requiring layout revision but enabling more demanding surge compliance.
Availability
SMBJ160CAHE3_A/H is available at Aetrix Electronics and suitable for automotive power modules, industrial sensor interfaces, telecom line cards, and renewable energy inverters requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for SMBJ160CAHE3_A/H 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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where consistent clamping performance and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ160CAHE3_A/H at its rated peak pulse current?
The SMBJ160CAHE3_A/H has a maximum clamping voltage (VC) of 25.9 V when subjected to its rated peak pulse current (IPPM) of 259 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures predictable overvoltage limiting for downstream components. The SMBJ160CAHE3_A/H maintains this clamping performance across its full operating temperature range from –55 °C to +150 °C.
Is SMBJ160CAHE3_A/H suitable for automotive applications?
Yes, SMBJ160CAHE3_A/H is AEC-Q101 qualified and specifically designed for automotive use, including under-hood and powertrain applications. Its qualification covers temperature cycling, highly accelerated life testing, and ESD robustness. The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, making SMBJ160CAHE3_A/H appropriate for production ECUs requiring PPAP documentation and long-term supply assurance.
How does the bidirectional configuration of SMBJ160CAHE3_A/H affect its circuit placement?
The SMBJ160CAHE3_A/H has no polarity marking and functions identically in both directions, allowing placement without orientation constraints on PCBs. This simplifies layout and eliminates risk of reverse installation-especially valuable in high-volume manufacturing of differential or AC-coupled signal lines. Unlike unidirectional variants, SMBJ160CAHE3_A/H protects against transients of either polarity without external diode pairing.
What is the thermal resistance of SMBJ160CAHE3_A/H, and how does it impact PCB layout?
SMBJ160CAHE3_A/H 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. To maintain safe junction temperatures under repetitive surge conditions, designers should adhere to the recommended pad layout and avoid excessive trace length or isolation. The SMBJ160CAHE3_A/H also exhibits 20 °C/W junction-to-lead resistance, supporting effective heat conduction through solder joints.
Does SMBJ160CAHE3_A/H meet moisture sensitivity requirements for lead-free reflow?
Yes, SMBJ160CAHE3_A/H is rated MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means it can be processed using standard lead-free reflow profiles without baking or special handling-reducing manufacturing complexity and eliminating moisture-related defects like popcorning. The SMBJ160CAHE3_A/H achieves this via robust molding compound and controlled internal moisture diffusion characteristics.
SMBJ160CAHE3_A/H 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/H FAQ
1.How can I place an order for SMBJ160CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CAHE3_A/H 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/H reliable?
The price and inventory of SMBJ160CAHE3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for SMBJ160CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CAHE3_A/H?
SMBJ160CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CAHE3_A/H 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/H?
For technical support, including SMBJ160CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CAHE3_A/H requirements.
6.How does Aetrix verify that SMBJ160CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ160CAHE3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of SMBJ160CAHE3_A/H?
All SMBJ160CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CAHE3_A/H, 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/H part is unused and in its original packaging.
Return procedure for SMBJ160CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CAHE3_A/H Tags
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