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Vishay General Semiconductor - Diodes Division SMBJ160CA-M3/5B
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- Part No.:
- SMBJ160CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CA-M3/5B.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,829
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Product details
Overview
SMBJ160CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features 160 V standoff voltage (VWM), 178–197 V breakdown range (VBR at 1 mA), 259 V clamping voltage (VC) at 2.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ160CA-M3/5B datasheet, SMBJ160CA-M3/5B pinout, SMBJ160CA-M3/5B application, or SMBJ160CA-M3/5B equivalent, key selection criteria include bidirectional clamping capability, low leakage (<1.0 µA at VWM), halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT assembly on standard PCB pad layouts per JEDEC DO-214AA.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under transient overvoltage events exceeding VWM, it avalanches rapidly to divert surge current away from downstream circuitry while maintaining clamped voltage ≤259 V. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity constraints.
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), with maximum junction temperature rated at +150 °C. It meets J-STD-020 MSL Level 1 and withstands lead-free reflow peak temperatures up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 178 V / 197 V at 1 mA - guaranteed avalanche onset range defining protection threshold margin |
| VC @ IPPM | 259 V at 2.3 A - clamped voltage during 10/1000 µs surge, limiting stress on protected ICs |
| PPPM | 600 W - peak pulse power handling capacity, enabling robust ESD and lightning surge immunity |
| ID @ VWM | <1.0 µA - ultra-low leakage ensures minimal standby power loss and signal integrity |
| Package | SMB (DO-214AA) - industry-standard 2-pin surface-mount outline with 5.59 mm max length and 4.57 mm max width |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); meets UL 497B recognition (QVGQ2) and JESD201 Class 2 whisker resistance |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking - both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Either terminal serves as current entry/exit point during bidirectional clamping; no cathode band marking |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC, differential, or floating signal lines without polarity alignment during layout |
| 600 W peak pulse power | Withstands high-energy transients from inductive switching (e.g., relay coils, solenoids) and lightning-induced surges |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic interfaces |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and direct placement into lead-free reflow without baking preconditioning |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for industrial and telecom equipment sold in EU, China, and Japan |
Applications
| Industrial Motor Drive Control | Telecom Line Interface Protection |
|---|---|
|
Use Scenario: Protecting gate drivers and feedback sensing circuits from flyback voltage spikes generated by IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Shunt TVS placed across DC bus or isolated signal inputs to clamp transients before they reach precision op-amps or microcontroller ADC inputs. Use Value: Limits transient voltage to ≤259 V, preventing latch-up or permanent damage to 16-bit analog front-ends operating at ±15 V supply rails. |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs against induced surges on long-haul data lines in outdoor base stations. IC Role / Device Role / Timing Role: Bidirectional TVS installed at connector entry points to absorb common-mode surges per IEC 61000-4-5 Level 3 (1 kV/2 kV). Use Value: Maintains signal integrity by clamping within 1 ns response time while adding <1 pF junction capacitance at zero bias. |
| Automotive Body Control Module (BCM) | Consumer Appliance Power Supply Input |
|
Use Scenario: Suppressing load-dump and jump-start transients on 12 V battery-fed microcontrollers and CAN transceivers in non-AEC-Q101 variants. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of LDO regulators and system reset supervisors. Use Value: Withstands 600 W pulses without degradation, ensuring reliable operation across -40 °C to +125 °C ambient conditions. |
Use Scenario: Protecting AC-DC adapter primary-side rectifiers and secondary-side USB charging ports from mains-borne surges and ESD events. IC Role / Device Role / Timing Role: Secondary-side TVS on 5 V/9 V output rails to prevent overvoltage damage to connected smart devices. Use Value: Delivers <1.0 µA leakage at 160 V, eliminating standby current penalty while meeting UL 497B safety certification for end equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA-E3/5B | Same electrical specs; RoHS-compliant but contains brominated flame retardants (non-halogen-free) | Acceptable where halogen-free requirement is not mandated (e.g., commercial-grade consumer products) | Select when cost sensitivity outweighs halogen-free compliance; identical footprint and thermal behavior |
| SMCJ160CA-M3 | Same VWM/VC ratings but in larger SMC (DO-214AB) package; 1500 W PPPM | Used where higher surge energy handling is required (e.g., outdoor power supplies, solar inverters) | Choose only if board space allows larger 7.11 mm × 6.22 mm footprint and 1500 W rating is necessary |
Compared with SMBJ160CA-E3/5B, the M3 variant adds halogen-free compliance without sacrificing performance; versus SMCJ160CA-M3, SMBJ160CA-M3/5B offers identical protection in 30% smaller area but with lower 600 W surge rating - optimal for space-constrained industrial PCBs requiring certified environmental compliance.
Availability
SMBJ160CA-M3/5B is available at Aetrix Electronics and suitable for industrial motor control, telecom infrastructure, consumer appliance power management, and automotive body electronics requiring stable component supply and full traceability.
Supply support for SMBJ160CA-M3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-volume manufacturability.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting industrial automation, telecom infrastructure, and automotive subsystems where consistent clamping performance and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ160CA-M3/5B at its rated peak pulse current?
The SMBJ160CA-M3/5B has a maximum clamping voltage (VC) of 259 V at 2.3 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet Document Number 88392, page 2. The SMBJ160CA-M3/5B maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ160CA-M3/5B suitable for bidirectional signal line protection?
Yes, SMBJ160CA-M3/5B is explicitly designed as a bidirectional TVS diode, with symmetrical breakdown characteristics in both polarities - making it ideal for protecting AC-coupled interfaces like RS-485, CAN, or audio lines. Its unmarked SMB package confirms bidirectional functionality, and electrical parameters (VBR, VC, ID) apply identically in either direction. The SMBJ160CA-M3/5B datasheet states "Electrical characteristics apply in both directions" and references CA-suffix devices for bidirectional use.
Does SMBJ160CA-M3/5B meet automotive qualification standards?
No, SMBJ160CA-M3/5B is a commercial-grade part with halogen-free RoHS compliance (M3 suffix) but is not AEC-Q101 qualified. For automotive applications, Vishay specifies separate ordering codes: SMBJ160CAHM3_X (where "_X" denotes revision letter) denotes the AEC-Q101 qualified version. The SMBJ160CA-M3/5B is rated for industrial and telecom use with operating temperature from -55 °C to +150 °C, but lacks the extended reliability testing required for automotive deployment.
What is the thermal resistance of SMBJ160CA-M3/5B from junction to ambient?
The typical thermal resistance from junction to ambient (RθJA) for SMBJ160CA-M3/5B is 100 °C/W, measured on the standard JEDEC 2-layer PCB pad layout (0.2" × 0.2" copper pads per terminal). This value assumes natural convection cooling and directly impacts derating of peak pulse power above 25 °C ambient. The SMBJ160CA-M3/5B also exhibits RθJL = 20 °C/W (junction-to-lead), supporting effective heat transfer to PCB copper planes. These thermal metrics are specified in the Vishay SMBJ5.0A–SMBJ188A datasheet, page 3.
How does the M3 suffix affect the compliance and processing of SMBJ160CA-M3/5B?
The M3 suffix on SMBJ160CA-M3/5B indicates halogen-free, RoHS-compliant construction using bromine- and chlorine-free molding compounds and matte tin-plated leads - satisfying IEC 61249-2-21 and JEDEC JS709E requirements. It also certifies compliance with JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1, allowing direct lead-free reflow at 260 °C peak without baking. The SMBJ160CA-M3/5B differs from E3-suffix variants solely in halogen content; all electrical and mechanical specifications remain identical.
SMBJ160CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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-M3/5B FAQ
1.How can I place an order for SMBJ160CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CA-M3/5B 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 SMBJ160CA-M3/5B reliable?
The price and inventory of SMBJ160CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ160CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CA-M3/5B?
SMBJ160CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CA-M3/5B 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 SMBJ160CA-M3/5B?
For technical support, including SMBJ160CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CA-M3/5B requirements.
6.How does Aetrix verify that SMBJ160CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ160CA-M3/5B 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 SMBJ160CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ160CA-M3/5B?
All SMBJ160CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CA-M3/5B, 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 SMBJ160CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ160CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CA-M3/5B Tags
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