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Vishay General Semiconductor - Diodes Division SMBJ160CAHE3_B/I
- Part No.:
- SMBJ160CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CAHE3_B/I.pdf
- Description:
- 600W,160V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,548
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Product details
Overview
SMBJ160CAHE3_B/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 stand-off voltage (VWM), 259 A peak pulse current (IPPM) at 10/1000 µs waveform, 328 V maximum clamping voltage (VC), and 600 W peak pulse power dissipation - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ160CAHE3_B/I datasheet, SMBJ160CAHE3_B/I pinout, SMBJ160CAHE3_B/I application, or SMBJ160CAHE3_B/I equivalent, key selection criteria include bidirectional surge handling capability, AEC-Q101 qualification status, clamping voltage margin relative to protected IC rails, and thermal derating behavior above 25 °C ambient.
Technical Context
This device operates as a voltage-clamped avalanche diode with symmetrical breakdown in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports consistent clamping under repetitive transient events.
The SMBJ160CAHE3_B/I is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - maximum continuous reverse operating voltage before conduction begins; defines upper limit of protected circuit's normal operating range |
| VBR min / max | 178 V / 197 V at 1 mA - guaranteed breakdown voltage window ensuring reliable triggering during overvoltage events |
| VC @ IPPM | 328 V - clamping voltage at 259 A peak pulse current; determines worst-case stress imposed on downstream components |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform; defines transient energy absorption capacity |
| ID @ VWM | ≤1.0 µA - reverse leakage current at stand-off voltage; critical for low-power or high-impedance sensor circuits |
| TJ max | 150 °C - maximum junction temperature; sets thermal design boundary for PCB layout and power cycling |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on standard pad layout; used to calculate temperature rise under DC bias or repetitive surges |
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), matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Anode) | Transient current return path | Both terminals are electrically symmetric; either terminal conducts during positive or negative transients - no functional distinction in bidirectional mode |
| Anode (Cathode) | Transient current entry point | Same physical terminal as above; bidirectional operation eliminates need for orientation-dependent placement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded lines without polarity concerns |
| 600 W peak pulse power | Handles IEC 61000-4-5 surge test levels up to 4 kV (line-earth) with appropriate series impedance |
| AEC-Q101 qualification | Validated for automotive subsystems including body control modules and infotainment power rails |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak, simplifying SMT manufacturing |
| Low clamping ratio (VC/VBR ≈ 1.84) | Minimizes overvoltage overshoot during fast transients, improving margin for 3.3 V or 5 V logic interfaces |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in factory automation PLCs exposed to relay coil switching noise. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point, shunting induced spikes before reaching ADC front-end or isolation amplifier. Use Value: Limits transient excursions to ≤328 V, preserving 16-bit measurement integrity and preventing latch-up in precision op-amps operating from ±15 V rails. | Use Scenario: Safeguarding RS-485 transceivers on outdoor base station backhaul links subject to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression element on differential bus lines, coordinated with common-mode chokes and secondary GDTs. Use Value: Clamps common-mode transients within 1 ns response time, maintaining signal integrity across 10 Mbps data rates and meeting ITU-T K.21 basic protection requirements. |
| Automotive Body Control Module | Consumer Appliance Motor Drive |
Use Scenario: Shielding LIN bus nodes in door module ECUs from load dump and jump-start transients in 12 V battery systems. IC Role / Device Role / Timing Role: Bidirectional TVS mounted at LIN connector, absorbing reverse-polarity and surge events without polarity-sensitive routing. Use Value: Withstands ≥1000 pulses at 259 A per ISO 7637-2 Pulse 5a, ensuring long-term reliability in AEC-Q101-compliant modules. | Use Scenario: Suppressing commutation spikes on BLDC motor gate-drive signal lines in smart washing machines. IC Role / Device Role / Timing Role: Localized clamping device adjacent to half-bridge driver ICs, limiting voltage overshoot during MOSFET turn-off. Use Value: Maintains gate-source voltage below 20 V absolute maximum during 600 W transient events, preventing unintended FET turn-on and shoot-through 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 |
|---|---|---|---|
| SMBJ160CAHM3_B/I | Halogen-free, RoHS-compliant, AEC-Q101 qualified - identical electrical specs and package | No functional difference; selected where halogen-free material compliance is mandated by OEM specifications | Direct substitution when environmental compliance exceeds standard RoHS requirements |
| SMCJ160CAHE3_A/I | Same VWM/VC/IPPM ratings but in larger SMC (DO-214AB) package; higher RθJA (50 °C/W vs. 100 °C/W) | Better thermal performance under sustained surge duty cycles; requires larger PCB footprint | Preferred for high-reliability industrial designs with >1000 surge cycles lifetime requirement |
Compared with SMBJ160CAHE3_B/I, the HM3 variant offers identical protection performance with halogen-free construction, while the SMCJ160CAHE3_A/I delivers superior thermal robustness in space-tolerant layouts - choice depends on footprint constraints, environmental mandates, and thermal duty profile.
Availability
SMBJ160CAHE3_B/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, and automotive body control modules requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for SMBJ160CAHE3_B/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, MOSFETs, and protection devices with emphasis on reliability and application-specific optimization.
The SMBJ series targets board-level transient suppression in space-constrained, high-volume applications - engineered for rapid response, repeatable clamping, and compatibility with automated SMT assembly processes.
FAQ
What is the clamping voltage of SMBJ160CAHE3_B/I at its rated peak pulse current?
The SMBJ160CAHE3_B/I has a maximum clamping voltage (VC) of 328 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 ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for verifying margin against downstream IC absolute maximum ratings.
Is SMBJ160CAHE3_B/I suitable for automotive applications?
Yes, SMBJ160CAHE3_B/I is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix and "_B" revision code. It meets stress test requirements for temperature cycling, humidity, mechanical shock, and surge endurance - validated for deployment in body control modules, lighting drivers, and infotainment power supplies where reliability under harsh conditions is mandatory.
How does the bidirectional configuration of SMBJ160CAHE3_B/I affect PCB layout?
The bidirectional configuration of SMBJ160CAHE3_B/I eliminates polarity marking and orientation sensitivity - both terminals are functionally identical, allowing placement without regard to anode/cathode direction. This simplifies layout, reduces assembly errors, and enables symmetric routing on differential pairs or floating lines, unlike unidirectional variants that require strict cathode alignment toward the protected IC side.
What is the thermal resistance of SMBJ160CAHE3_B/I under standard mounting conditions?
SMBJ160CAHE3_B/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, per Vishay Document 88392. This value assumes no additional heatsinking and must be used with derating curves (Fig. 2) to determine safe power dissipation limits at elevated ambient temperatures - essential for estimating temperature rise during repetitive surge events.
Does SMBJ160CAHE3_B/I meet moisture sensitivity level requirements for lead-free reflow?
Yes, SMBJ160CAHE3_B/I meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This allows indefinite floor life and compatibility with standard lead-free solder profiles without dry-pack or baking requirements - confirmed in the Mechanical Data section of Vishay Document 88392 and verified through JEDEC testing protocols.
SMBJ160CAHE3_B/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:
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ160CAHE3_B/I FAQ
1.How can I place an order for SMBJ160CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CAHE3_B/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_B/I reliable?
The price and inventory of SMBJ160CAHE3_B/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_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ160CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CAHE3_B/I?
SMBJ160CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CAHE3_B/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_B/I?
For technical support, including SMBJ160CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CAHE3_B/I requirements.
6.How does Aetrix verify that SMBJ160CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ160CAHE3_B/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_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ160CAHE3_B/I?
All SMBJ160CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CAHE3_B/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_B/I part is unused and in its original packaging.
Return procedure for SMBJ160CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CAHE3_B/I Tags
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