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Vishay General Semiconductor - Diodes Division SMBJ160D-M3/H
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- Part No.:
- SMBJ160D-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160D-M3/H.pdf
- Description:
- TVS DIODE 160VWM 256VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,273
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Product details
Overview
SMBJ160D-M3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 160 V stand-off voltage (VWM), 181–194 V breakdown voltage (VBR) at 1.0 mA, 256 V clamping voltage (VC) at 2.34 A peak pulse current, and 600 W peak pulse power rating with a 10/1000 μs waveform.
For engineers reviewing the SMBJ160D-M3/H datasheet, SMBJ160D-M3/H pinout, SMBJ160D-M3/H application, or SMBJ160D-M3/H equivalent, key selection criteria include its ±3.5% tight VBR tolerance, low 0.5 μA reverse leakage at VWM, M3 halogen-free/RoHS-compliant industrial-grade construction, and UL 497B recognition for surge protector classification.
Technical Context
This TVS diode operates as a clamping-type overvoltage protection device, responding to fast transients (sub-nanosecond response time) by entering avalanche breakdown when reverse voltage exceeds VBR. Its unidirectional polarity-marked with a cathode band-enables integration into DC-biased circuits without forward conduction during normal operation.
The SMBJ160D-M3/H delivers 600 W peak pulse power handling per 10/1000 μs waveform at TA = 25 °C, with thermal derating to 5.0 W at TM = 50 °C on infinite heatsink and 1.0 W at ambient. Its RθJA of 125 °C/W (on minimum pad layout) and JESD201 Class 2 whisker resistance support reliable long-term deployment in industrial and telecom environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 181 V / 194 V at 1.0 mA - Tight ±3.5% tolerance ensures predictable turn-on across production lots |
| VC @ IPPM | 256 V at 2.34 A - Clamped voltage limits downstream component stress during 600 W surge events |
| ID @ VWM | 0.5 μA - Ultra-low leakage preserves efficiency in high-impedance or battery-powered circuits |
| PPPM | 600 W - Sustains standardized 10/1000 μs lightning/surge pulses per ANSI/IEEE C62.35 |
| TJ max | +150 °C - Enables operation in under-hood automotive, industrial control, and outdoor telecom enclosures |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with automated assembly and meets UL 94 V-0 flammability |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, M3 suffix indicating halogen-free, RoHS-compliant, industrial-grade construction and JESD201 Class 2 whisker resistance. Polarity: cathode denoted by a band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional protection configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., +160 V rail); avalanche conduction occurs here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Ensures consistent clamping threshold across batches, reducing design margin uncertainty in safety-critical systems |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) without degradation when properly mounted |
| UL 497B recognized (QVGQ2 file E136766) | Validates compliance for use in telecom and industrial equipment requiring certified surge protection components |
| MSL Level 1 (J-STD-020), 260 °C reflow peak | Supports standard lead-free PCB assembly without moisture-related popcorning or delamination |
| 0.5 μA max reverse leakage @ VWM | Minimizes standby power loss in always-on sensor nodes and energy-harvesting applications |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of gate drivers and bus voltage sensing circuits against switching transients from IGBTs/MOSFETs in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or gate resistor to clamp inductive kickback spikes. Use Value: Limits transient voltage to ≤256 V, preventing gate oxide rupture in 600 V-class power semiconductors. | Use Scenario: Surge suppression on -48 V DC power feeds in central office and remote radio head equipment. IC Role / Device Role / Timing Role: Primary-level TVS connected between power rail and chassis ground to absorb lightning-induced surges. Use Value: Withstands repeated 600 W surges while maintaining <0.5 μA leakage, preserving system efficiency over 20+ year deployments. |
| Automotive Body Control Modules | Industrial Sensor Signal Lines |
Use Scenario: Input protection for LIN/CAN transceivers and microcontroller I/O pins exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Clamp diode on 12 V supply rail upstream of LDO regulators to limit voltage excursion during ISO 7637-2 Pulse 5a. Use Value: Clamps to 256 V within nanoseconds, allowing downstream regulators to maintain output regulation during 35 V/100 ms load dump. | Use Scenario: Protection of analog inputs (e.g., 4–20 mA loop receivers, RTD interfaces) in PLC analog I/O modules. IC Role / Device Role / Timing Role: Low-leakage TVS placed across differential input terminals to suppress ESD and EFT bursts without distorting precision measurements. Use Value: 0.5 μA leakage avoids offset errors in 24-bit ADC front-ends; tight VBR ensures no false triggering during normal 0–10 V signal swings. |
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-M3/H | Bidirectional variant; symmetrical VBR (181–194 V) in both polarities; no cathode band marking | Required for AC-coupled or floating signal lines where polarity reversal may occur (e.g., RS-485, Ethernet PHY) | Select SMBJ160A-M3/H only if bidirectional clamping is needed; SMBJ160D-M3/H is optimal for DC rails with defined polarity |
| SMCJ160A | Larger SMC (DO-214AB) package; same VWM/VBR but higher PPPM (1500 W); 2× footprint area | Suitable for higher-energy surge environments (e.g., outdoor PoE switches, solar inverters) where board space permits | Choose SMCJ160A only when 1500 W surge rating is required; SMBJ160D-M3/H offers best power density for space-constrained designs |
Compared with SMBJ160A-M3/H and SMCJ160A, the SMBJ160D-M3/H provides optimal balance of 600 W surge capability, compact SMB footprint, and ultra-low leakage for unidirectional DC protection-making it preferred for motor drive DC links, telecom -48 V feeds, and automotive body electronics where polarity is fixed and board area is constrained.
Availability
SMBJ160D-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for SMBJ160D-M3/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, power efficiency, and automotive-grade qualification.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-reliability transient suppression in industrial, telecom, and automotive power and signal lines-prioritizing tight parametric control, UL certification, and MSL-1 manufacturability.
FAQ
What is the maximum clamping voltage of the SMBJ160D-M3/H under a 600 W surge?
The SMBJ160D-M3/H has a maximum clamping voltage (VC) of 256 V at 2.34 A peak pulse current, measured using the standardized 10/1000 μs waveform. This value is guaranteed per the Vishay datasheet (Document Number: 87606, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The SMBJ160D-M3/H maintains this clamping performance across its qualified temperature range (-55 °C to +150 °C).
Is the SMBJ160D-M3/H suitable for protecting a 160 V DC bus in an industrial motor drive?
Yes, the SMBJ160D-M3/H is explicitly rated for 160 V stand-off voltage (VWM) and 181–194 V breakdown (VBR), making it ideal for 160 V DC bus protection. Its 256 V clamping voltage ensures downstream IGBT gate drivers and current sensors remain within safe operating limits during switching transients. The SMBJ160D-M3/H's 600 W surge rating aligns with IEC 61000-4-5 requirements for industrial environments, and its M3 halogen-free construction supports long-term reliability in high-temperature drive cabinets.
Does the SMBJ160D-M3/H have UL recognition for surge protection applications?
Yes, the SMBJ160D-M3/H carries Underwriters Laboratory (UL) Recognition under standard UL 497B for protectors, with file number E136766. This applies to both unidirectional (e.g., SMBJ160D-M3/H) and bidirectional variants in the SMBJ family. UL recognition validates its suitability for use in certified telecom, industrial control, and building automation equipment where third-party safety compliance is mandatory.
What is the reverse leakage current specification for SMBJ160D-M3/H at its rated stand-off voltage?
The SMBJ160D-M3/H specifies a maximum reverse leakage current (ID) of 0.5 μA at its 160 V stand-off voltage (VWM) and TA = 25 °C. This ultra-low leakage is confirmed in the Vishay Electrical Characteristics table (Document Number: 87606) and remains stable across industrial temperature ranges. It enables use in high-impedance monitoring circuits and battery-backed systems where standby current must be minimized without compromising surge immunity.
How does the M3 suffix affect the SMBJ160D-M3/H's material composition and reliability?
The M3 suffix on SMBJ160D-M3/H indicates halogen-free molding compound, RoHS compliance, industrial-grade qualification, and passing of JESD201 Class 2 whisker testing. These attributes ensure long-term solder joint integrity, environmental safety, and reliability in high-vibration or thermally cycled applications such as factory automation controllers and outdoor telecom gear. The M3 designation is verified in Vishay's ordering information and mechanical data sections (Document Number: 87606).
SMBJ160D-M3/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 181V
- Voltage - Clamping (Max) @ Ipp:
- 256V
- Current - Peak Pulse (10/1000µs):
- 2.34A
- 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)
SMBJ160D-M3/H FAQ
1.How can I place an order for SMBJ160D-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160D-M3/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 SMBJ160D-M3/H reliable?
The price and inventory of SMBJ160D-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160D-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ160D-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160D-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160D-M3/H?
SMBJ160D-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160D-M3/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 SMBJ160D-M3/H?
For technical support, including SMBJ160D-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160D-M3/H requirements.
6.How does Aetrix verify that SMBJ160D-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ160D-M3/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 SMBJ160D-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ160D-M3/H?
All SMBJ160D-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160D-M3/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 SMBJ160D-M3/H part is unused and in its original packaging.
Return procedure for SMBJ160D-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160D-M3/H Tags
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