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Vishay General Semiconductor - Diodes Division SMBJ160AHE3/5B
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- Part No.:
- SMBJ160AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160AHE3/5B.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,796
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Product details
Overview
SMBJ160AHE3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping high-energy 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, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom infrastructure.
For engineers reviewing the SMBJ160AHE3/5B datasheet, SMBJ160AHE3/5B pinout, SMBJ160AHE3/5B application, or SMBJ160AHE3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with sensitive downstream circuitry. Its silicon avalanche junction responds within <1 ps to overvoltage events, limiting transient energy by shunting surge current to ground while maintaining low dynamic impedance (<0.5 Ω typical) during clamping.
The SMBJ160AHE3/5B is rated for 600 W peak pulse power (10/1000 µs), supports 100 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits 1.0 µA max reverse leakage at VWM, enabling reliable operation in high-impedance bias networks without loading error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working margin below clamping threshold. |
| VBR (min/max) | 178 V / 197 V at IT = 1 mA - Breakdown onset range; ensures predictable turn-on across manufacturing lot and temperature. |
| VC @ IPPM | 259 V at 2.3 A - Clamped voltage under full-rated surge; determines maximum stress imposed on protected IC or MOSFET. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; defines transient energy absorption capability per event. |
| IFSM | 100 A - Non-repetitive forward surge current rating (8.3 ms half-sine); validates robustness against inrush or fault currents. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in high-ambient environments like enclosed power converters. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs PCB thermal design requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode marked by band at one end; anode at opposite end. Meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to system ground or low-impedance return path; carries full surge current during clamping. |
| Anode (unmarked end) | Protected line interface | Connected to input/output line being safeguarded (e.g., DC bus, sensor supply rail, or data line). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for under-hood and ADAS power modules. |
| 600 W peak pulse power | Handles lightning-induced surges (IEC 61000-4-5 Level 3/4) and inductive switching spikes without degradation when mounted per recommended pad layout. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during fast transients - critical for protecting 160 V-rated GaN FETs or wide-bandgap power stages. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning - eliminates moisture sensitivity handling overhead in SMT lines. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability under humidity and thermal stress - validated per JESD22-A101. |
Applications
| Industrial Power Supply Protection | Telecom DC Feeder Line Protection |
|---|---|
|
Use Scenario: 48 V DC distribution feeders in base station cabinets exposed to induced surges from nearby lightning strikes or relay switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +48 V rail and chassis ground to clamp transients before they reach DC/DC converter inputs. Use Value: Limits voltage excursion to ≤259 V during 600 W surges, preserving input-stage MOSFETs rated for 300 V breakdown and preventing latch-up in control ICs. |
Use Scenario: Input stage of PoE-powered remote radio units (RRUs) receiving DC power over twisted-pair cabling. IC Role / Device Role / Timing Role: Primary surge suppression element on the powered device (PD) side, upstream of hot-swap controller and DC/DC stage. Use Value: Withstands repeated 10/1000 µs surges up to 2.3 A while maintaining <1 µA leakage at 48 V - avoids false triggering and standby current drift. |
| Motor Drive Gate Driver Protection | Industrial Sensor Signal Conditioning |
|
Use Scenario: Isolated gate drive supply rails in servo motor inverters subjected to cross-talk and shoot-through-induced voltage spikes. IC Role / Device Role / Timing Role: Clamp diode across isolated 15 V gate supply output to suppress ringing and dv/dt-induced transients. Use Value: Fast response (<1 ps) and low dynamic impedance limit spike amplitude to <260 V, preventing unintended IGBT/MOSFET turn-on and gate oxide overstress. |
Use Scenario: 4–20 mA analog sensor loop inputs in factory automation PLC modules exposed to EMI from variable-frequency drives. IC Role / Device Role / Timing Role: Transient suppressor on the loop supply line, placed before precision current-sense amplifier and ADC front-end. Use Value: 160 V VWM allows full 24 V loop headroom while clamping >1 kV transients to <260 V - preserves 24-bit ADC accuracy and prevents op-amp saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A-E3/5B | Commercial-grade version; lacks AEC-Q101 qualification and halogen-free certification. | Approved for industrial and telecom equipment but not automotive ECUs or ADAS modules. | Select when cost sensitivity outweighs automotive qualification requirements and RoHS/halogen-free compliance is not mandated. |
| SMCJ160AHE3/5B | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 50 °C/W vs. 100 °C/W. | Better thermal performance enables higher sustained surge duty cycles; requires larger PCB footprint. | Choose when ambient temperature exceeds 85 °C or repetitive surge events demand lower junction temperature rise. |
Compared with SMBJ160A-E3/5B, the SMBJ160AHE3/5B adds AEC-Q101 qualification and halogen-free construction for automotive use, while the SMCJ160AHE3/5B trades compact SMB size for superior thermal dissipation - making SMBJ160AHE3/5B optimal for space-constrained, qualified automotive power nodes.
Availability
SMBJ160AHE3/5B is available at Aetrix Electronics and suitable for industrial power supplies, telecom DC feeder protection, motor drive gate driver circuits, and industrial sensor signal conditioning requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for SMBJ160AHE3/5B 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 was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and telecom systems where board space, thermal constraints, and qualification rigor are critical.
FAQ
What is the maximum clamping voltage of SMBJ160AHE3/5B under rated surge conditions?
The SMBJ160AHE3/5B has a maximum clamping voltage (VC) of 259 V at its rated peak pulse current of 2.3 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees that protected downstream components will not experience voltage stress exceeding 259 V during standardized surge events - essential for ensuring compatibility with 300 V-rated power semiconductors and avoiding overvoltage failure modes in the SMBJ160AHE3/5B application circuit.
Is SMBJ160AHE3/5B suitable for automotive applications?
Yes, SMBJ160AHE3/5B is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials - explicitly designated for automotive use per Vishay's ordering nomenclature (HE3 suffix). It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D, making it appropriate for engine control units, body electronics, and ADAS power modules where SMBJ160AHE3/5B must sustain operation from –40 °C to +125 °C ambient.
How does the SMBJ160AHE3/5B differ from bidirectional variants like SMBJ160CA?
The SMBJ160AHE3/5B is unidirectional, featuring cathode marking and conducting only in reverse breakdown - ideal for DC line protection with defined polarity. In contrast, SMBJ160CA is bidirectional, symmetrical in both directions, and lacks polarity marking. The SMBJ160AHE3/5B offers lower leakage (<1 µA at 160 V) and tighter VBR tolerance than its bidirectional counterpart, which is optimized for AC or floating signal line protection where polarity reversal may occur - a functional distinction critical when selecting SMBJ160AHE3/5B versus CA-suffix parts.
What is the thermal resistance and recommended PCB layout for SMBJ160AHE3/5B?
The SMBJ160AHE3/5B 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 Vishay Document 88392. To achieve this rating, designers must implement minimum pad dimensions matching the SMB outline, use internal ground planes connected via multiple vias, and avoid excessive solder mask coverage over thermal pads - all necessary to maintain SMBJ160AHE3/5B junction temperature within its 150 °C limit during repetitive surge events.
Does SMBJ160AHE3/5B meet UL recognition standards?
Yes, SMBJ160AHE3/5B is Underwriters Laboratories (UL) recognized under file E136766 for both unidirectional and bidirectional TVS devices, complying with UL 497B for primary protector classification. This certification validates its ability to safely interrupt and dissipate surge energy without fire hazard or insulation breakdown - a mandatory requirement for SMBJ160AHE3/5B deployment in UL-listed industrial power supplies, telecom infrastructure, and building automation systems.
SMBJ160AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
SMBJ160AHE3/5B FAQ
1.How can I place an order for SMBJ160AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160AHE3/5B 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 SMBJ160AHE3/5B reliable?
The price and inventory of SMBJ160AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ160AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160AHE3/5B?
SMBJ160AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160AHE3/5B 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 SMBJ160AHE3/5B?
For technical support, including SMBJ160AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160AHE3/5B requirements.
6.How does Aetrix verify that SMBJ160AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ160AHE3/5B 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 SMBJ160AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ160AHE3/5B?
All SMBJ160AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160AHE3/5B, 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 SMBJ160AHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ160AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160AHE3/5B Tags
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