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Vishay General Semiconductor - Diodes Division SMBJ160CA-E3/52
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- Part No.:
- SMBJ160CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CA-E3/52.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,168
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Product details
Overview
SMBJ160CA-E3/52 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), 178–197 V breakdown voltage (VBR) at 1 mA, 259 V maximum clamping voltage (VC) at 2.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform), used in industrial sensor protection and telecom interface surge suppression.
For engineers reviewing the SMBJ160CA-E3/52 datasheet, SMBJ160CA-E3/52 pinout, SMBJ160CA-E3/52 application, or SMBJ160CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.62), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (178–197 V), VC (259 V), and IPPM (2.3 A) in either direction. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ps), enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients.
The device uses a planar junction structure housed in an SMB (DO-214AA) thermally optimized package with RθJA = 100 °C/W and RθJL = 20 °C/W. It is rated for TJ = –55 to +150 °C operation and meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 160 V - Maximum continuous reverse working voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 178–197 V at IT = 1 mA - Confirmed bidirectional breakdown range; ensures reliable triggering during overvoltage events. |
| VC (Clamping Voltage) | 259 V at IPPM = 2.3 A (10/1000 μs) - Peak voltage seen by protected circuit under surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling capacity; validated per IEC 61000-4-5 with 10/1000 μs waveform. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM = 160 V - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max. | +150 °C - Enables use in under-hood automotive modules and industrial enclosures without derating at 50 °C ambient. |
| Package | SMB (DO-214AA) - Standardized SMT footprint (5.21 mm × 4.06 mm × 2.20 mm); compatible with IPC-7351B generic land pattern. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are symmetrical; both ends function identically under reverse or forward bias during transient events.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path terminal | Either end connects to protected line; no orientation required during placement-reduces assembly error risk. |
| Case (cathode band absent) | Non-polarized package body | Eliminates need for orientation verification in automated pick-and-place; supports dual-line routing flexibility. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Handles IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation when mounted on 5 mm × 5 mm copper pads. |
| Low clamping ratio (VC/VWM = 1.62) | Minimizes overvoltage stress on 160 V-rated ICs or MOSFETs-critical for protecting gate drivers and analog front-ends. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning during assembly. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure-validated per JESD22-A101. |
| RoHS-compliant matte tin plating | Enables reliable solder wetting per J-STD-002/JESD22-B102; avoids intermetallic growth issues in high-reliability industrial applications. |
Applications
| Industrial Sensor Interface Protection | Telecom Line Card Surge Suppression |
|---|---|
|
Use Scenario: Protecting 4–20 mA current loop transmitters and RS-485 nodes against induced surges from nearby motor drives or lightning coupling. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential bus lines or between signal and ground. Use Value: Limits transient voltage to ≤259 V while maintaining <1.0 μA leakage at 160 V nominal line voltage-preserving measurement accuracy and isolation integrity. |
Use Scenario: Front-end protection for Ethernet PHYs and DSL line drivers exposed to AC mains coupling and telecom lightning surges. IC Role / Device Role / Timing Role: Primary shunt suppressor on tip/ring pairs or DC feed lines prior to transformer coupling. Use Value: Clamps 10/1000 μs surges up to 2.3 A without latch-up or parametric shift-ensuring uninterrupted data link operation after transient clearance. |
| Automotive Body Control Module (BCM) Power Input | AC-DC Adapter Secondary-Side Overvoltage Clamp |
|
Use Scenario: Suppressing load dump and jump-start transients on 12 V supply rails feeding microcontrollers and CAN transceivers in BCMs. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor to clamp transients exceeding battery regulation limits. Use Value: Withstands 150 °C junction temperature and delivers 600 W pulse power-meeting ISO 7637-2 Pulse 5a requirements without thermal runaway. |
Use Scenario: Preventing secondary-side overvoltage damage in flyback adapters due to optocoupler failure or feedback loop disruption. IC Role / Device Role / Timing Role: Shunt clamp across output capacitor to limit voltage rise during open-loop fault conditions. Use Value: Activates at 178 V (min VBR) and clamps to 259 V-keeping output within safe margin of 200 V-rated electrolytic capacitors and secondary-side rectifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA-M3/52 | Halogen-free variant with identical electrical specs and SMB package; same VWM, VBR, VC, and PPPM ratings. | No difference in surge protection performance; selected only where halogen-free compliance is mandated by OEM spec. | Choose SMBJ160CA-M3/52 when environmental compliance requires halogen-free materials without altering circuit design. |
| SMCJ160CA-E3/52 | Same VWM/VBR/VC but in larger SMC (DO-214AB) package; higher thermal mass yields RθJA = 50 °C/W vs. 100 °C/W for SMBJ. | Better sustained surge handling in high-temperature environments (>85 °C ambient); requires larger PCB footprint (7.11 mm × 6.22 mm). | Choose SMCJ160CA-E3/52 when thermal derating or repeated surge duty cycles demand lower junction temperature rise. |
Compared with SMBJ160CA-E3/52, the M3 variant offers identical protection with halogen-free construction, while the SMCJ160CA-E3/52 trades board space for superior thermal performance-enabling longer surge endurance in thermally constrained designs.
Availability
SMBJ160CA-E3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line cards, automotive body control modules, and AC-DC adapter secondary-side protection requiring stable component supply and full traceability.
Supply support for SMBJ160CA-E3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in harsh environments-targeting industrial automation, automotive electronics, and telecommunications infrastructure where repeatable clamping and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ160CA-E3/52 at its rated peak pulse current?
The SMBJ160CA-E3/52 has a maximum clamping voltage (VC) of 259 V when subjected to its specified peak pulse current (IPPM) of 2.3 A using the 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ160CA-E3/52 maintains this clamping performance bidirectionally and is validated across its full operating temperature range.
Is SMBJ160CA-E3/52 suitable for automotive applications?
The base SMBJ160CA-E3/52 is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the automotive-grade variant SMBJ160CAHE3_B/H with identical electrical parameters and qualification per AEC-Q101. For non-automotive industrial or telecom use, SMBJ160CA-E3/52 meets all functional requirements-including 150 °C junction rating and MSL Level 1-but lacks formal automotive qualification documentation.
How does the bidirectional nature of SMBJ160CA-E3/52 affect PCB layout?
The SMBJ160CA-E3/52 has no polarity marking and functions identically in both directions, eliminating orientation constraints during PCB layout and SMT placement. Engineers can route either terminal to the protected line or ground without affecting clamping behavior-reducing assembly errors and enabling flexible board routing. This symmetry also simplifies schematic symbol usage and BOM management compared to unidirectional alternatives.
What is the thermal resistance of SMBJ160CA-E3/52, and how does it impact power dissipation?
The SMBJ160CA-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. At 50 °C ambient, its steady-state power dissipation (PD) is rated at 5.0 W. This means a 5 W continuous dissipation would raise junction temperature by 500 °C above ambient-so the device is intended for transient, not continuous, power handling; its 600 W rating applies only to short-duration pulses.
Does SMBJ160CA-E3/52 require special handling or baking before reflow soldering?
No-SMBJ160CA-E3/52 is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30 °C/60% RH and assembled using standard lead-free reflow profiles (peak 260 °C) without preconditioning or baking. Its moisture-sensitive level classification eliminates the need for dry-packaging or floor-life tracking, streamlining manufacturing for high-volume SMT lines.
SMBJ160CA-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- 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:
- 259V
- Current - Peak Pulse (10/1000µs):
- 2.3A
- 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 (SMBJ)
SMBJ160CA-E3/52 FAQ
1.How can I place an order for SMBJ160CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CA-E3/52 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 SMBJ160CA-E3/52 reliable?
The price and inventory of SMBJ160CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ160CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CA-E3/52?
SMBJ160CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CA-E3/52 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 SMBJ160CA-E3/52?
For technical support, including SMBJ160CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ160CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ160CA-E3/52 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 SMBJ160CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ160CA-E3/52?
All SMBJ160CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CA-E3/52, 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 SMBJ160CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ160CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CA-E3/52 Tags
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