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Vishay General Semiconductor - Diodes Division SMBJ160AHE3_B/I
- Part No.:
- SMBJ160AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160AHE3_B/I.pdf
- Description:
- 600W,160V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,057
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Product details
Overview
SMBJ160AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 160 V standoff voltage (VWM), 178–197 V breakdown range (VBR at 1 mA), 259 V maximum clamping voltage (VC) at 2.3 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, telecom power supplies, and automotive body control modules.
For engineers reviewing the SMBJ160AHE3_B/I datasheet, SMBJ160AHE3_B/I pinout, SMBJ160AHE3_B/I application, or SMBJ160AHE3_B/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), clamping performance under surge conditions, and direct alternatives for circuit-level ESD and lightning transient protection.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its specified VBR range (178–197 V). Its low incremental surge resistance ensures stable clamping during fast transients, while the glass-passivated junction enables repeatable surge handling up to 600 W with <1 ns response time.
The device is rated for continuous operation from –55 °C to +150 °C junction temperature, with 5.0 W steady-state power dissipation at TA = 50 °C on infinite heatsink. Its MSL Level 1 moisture sensitivity and matte tin-plated leads comply with J-STD-002 solderability and JESD 22-B102 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 160 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 178–197 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 259 V at IPPM = 2.3 A - Peak voltage seen by protected circuit during 10/1000 µs surge; critical for downstream IC survival. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability per single 10/1000 µs pulse; validated per IEC 61000-4-5. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Minimal standby current draw; preserves efficiency in always-on power systems. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard PCB pad layout; informs derating above 25 °C. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-banded unidirectional configuration. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with 0.203 mm lead thickness and 0.76 mm terminal width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (non-banded end) | Forward current entry / reverse surge return path | Connected to lower-potential side (e.g., GND or return rail); completes clamping loop during transient. |
| Cathode (banded end) | Reverse voltage sensing / clamping node | Connected to protected line (e.g., 160 V supply rail); conducts avalanche current when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive under-hood and body electronics requiring extended temperature and lifetime reliability. |
| Low profile SMB package | 0.220" height enables dense PCB layouts in space-constrained telecom and industrial power modules. |
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term surge endurance across 1000+ pulse cycles. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling. |
Applications
| Industrial Motor Drives | Telecom DC Power Supplies |
|---|---|
|
Use Scenario: Protection of 160 V DC bus against switching transients from IGBT gate drive noise and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC link capacitor to clamp overshoot spikes before they reach gate drivers or MCU power inputs. Use Value: Limits transient voltage to ≤259 V, preventing latch-up or oxide breakdown in 200 V-rated SiC gate drivers. |
Use Scenario: Input-stage surge suppression on 160 V intermediate bus feeding PoE++ PSE controllers and DC-DC converters. IC Role / Device Role / Timing Role: Primary clamping device on primary-side rail, activated within <1 ns to divert lightning-induced surges per IEC 61000-4-5. Use Value: Maintains system uptime by absorbing 600 W pulses without failure, meeting GR-1089-CORE telecom immunity requirements. |
| Automotive Body Control Modules | Renewable Energy Inverters |
|
Use Scenario: Protection of LIN/CAN transceiver power pins and microcontroller VDD against load dump and jump-start transients. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional clamp on 12 V–160 V auxiliary supply rails feeding BCM MCUs and driver ICs. Use Value: Survives 12 V battery system load dump (ISO 7637-2 Pulse 5a) with no parameter shift after 1000 cycles. |
Use Scenario: DC-link overvoltage suppression in solar string inverters where PV array open-circuit voltage reaches 160 V. IC Role / Device Role / Timing Role: Parallel-connected TVS on DC-link capacitor bank to limit voltage rise during rapid grid disconnection or MPPT overshoot. Use Value: Clamps to 259 V before IGBT overvoltage protection triggers, reducing false shutdowns and improving yield. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160AHE3_B/H | Same electrical specs and AEC-Q101 qualification; differs only in tape-and-reel packaging (750-unit vs. 3200-unit reel). | No functional difference; selected when smaller reel size aligns with SMT line changeover frequency. | Choose SMBJ160AHE3_B/H for low-volume pilot builds or mixed-PN feeders. |
| SMBJ160AHM3_B/I | Halogen-free variant (HM3 suffix); identical VWM, VBR, VC, PPPM, and thermal specs; same AEC-Q101 qualification. | Required only where halogen-free compliance (IEC 61249-2-21) is mandated in final product bill-of-materials. | Specify SMBJ160AHM3_B/I for RoHS+halogen-free programs without compromising protection performance. |
Compared with SMBJ160AHE3_B/I, SMBJ160AHE3_B/H offers identical protection in a smaller reel format for flexibility in prototyping, while SMBJ160AHM3_B/I adds halogen-free construction for stricter environmental compliance - neither alters clamping behavior, thermal design, or automotive qualification status.
Availability
SMBJ160AHE3_B/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom DC power supplies, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ160AHE3_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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive environments.
The SMBJ series is engineered specifically for high-energy transient suppression in DC power systems, balancing clamping precision, surge endurance, and AEC-Q101-compliant ruggedness for mission-critical applications.
FAQ
What is the maximum clamping voltage of SMBJ160AHE3_B/I under a 10/1000 µs surge?
The SMBJ160AHE3_B/I has a maximum clamping voltage (VC) of 259 V when subjected to its rated peak pulse current of 2.3 A with a 10/1000 µs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88392) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ160AHE3_B/I maintains this clamping performance across its full operating temperature range.
Is SMBJ160AHE3_B/I qualified for automotive applications?
Yes, SMBJ160AHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and explicitly stated in the Vishay datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD, making SMBJ160AHE3_B/I suitable for automotive body electronics, infotainment power rails, and ADAS sensor supply protection where reliability under harsh conditions is mandatory.
What does the "B/I" suffix mean in SMBJ160AHE3_B/I?
The "B/I" suffix in SMBJ160AHE3_B/I indicates the revision level ("B") and packaging format ("I" = 13-inch diameter plastic tape-and-reel, 3200 units per reel). This matches Vishay's ordering nomenclature in the datasheet's "Ordering Information" table. The "HE3" portion confirms RoHS-compliant, AEC-Q101-qualified construction, while "B/I" specifies manufacturing revision and logistics configuration - all critical for traceability and procurement accuracy.
How does SMBJ160AHE3_B/I differ from bidirectional variants like SMBJ160CA?
SMBJ160AHE3_B/I is unidirectional, with polarity marked by a cathode band and intended for DC rail protection where reverse conduction must be blocked. In contrast, SMBJ160CA is bidirectional, symmetrical in both directions, and used for AC signal or data line protection. Their VWM (160 V), VBR (178–197 V), and VC (259 V) are identical in magnitude but apply across opposite polarities - SMBJ160AHE3_B/I does not conduct in forward bias beyond ~3.5 V, unlike the bidirectional version which clamps equally in both directions.
What is the thermal resistance of SMBJ160AHE3_B/I, and how does it affect layout design?
The SMBJ160AHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended copper pad layout (0.2" × 0.2" per terminal). This value directly impacts power derating: at 70 °C ambient, its usable power drops to ~2.5 W. To maintain reliability, PCB layout must follow Vishay's pad dimensions (0.085" × 0.220") and avoid thermal isolation - SMBJ160AHE3_B/I relies on copper area, not heatsinks, for thermal management.
SMBJ160AHE3_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:
- 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:
- 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)
SMBJ160AHE3_B/I FAQ
1.How can I place an order for SMBJ160AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160AHE3_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 SMBJ160AHE3_B/I reliable?
The price and inventory of SMBJ160AHE3_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 SMBJ160AHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ160AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160AHE3_B/I?
SMBJ160AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160AHE3_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 SMBJ160AHE3_B/I?
For technical support, including SMBJ160AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160AHE3_B/I requirements.
6.How does Aetrix verify that SMBJ160AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ160AHE3_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 SMBJ160AHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ160AHE3_B/I?
All SMBJ160AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160AHE3_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 SMBJ160AHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ160AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160AHE3_B/I Tags
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