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Vishay General Semiconductor - Diodes Division SMBJ160CAHE3/5B
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- Part No.:
- SMBJ160CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CAHE3/5B.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,069
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Product details
Overview
SMBJ160CAHE3/5B 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 a 160 V stand-off voltage (VWM), 178–197 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤259 V at 2.3 A peak surge current - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ160CAHE3/5B datasheet, SMBJ160CAHE3/5B pinout, SMBJ160CAHE3/5B application, or SMBJ160CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, 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 bidirectional TVS operates symmetrically across both polarities, with identical VBR, IPPM, and VC specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients.
The device is rated for 600 W peak pulse power under 10/1000 µs waveform at 0.01% duty cycle, derated linearly above 25 °C ambient per Fig. 2. Thermal performance is defined by RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W, supporting reliable operation in compact PCB layouts without active cooling.
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 breakdown threshold defining transient turn-on window |
| VC @ IPPM | ≤259 V at 2.3 A - clamped voltage during full-rated 600 W surge, limiting downstream stress |
| IPPM | 2.3 A - peak surge current supported under 10/1000 µs waveform with 0.01% duty cycle |
| PPPM | 600 W - transient energy handling capacity compatible with IEC 61000-4-5 Level 4 testing |
| TJ range | −55 °C to +150 °C - extended junction temperature range suitable for automotive under-hood and industrial environments |
| Package | SMB (DO-214AA) - low-profile SMD outline (5.59 mm × 4.06 mm × 2.44 mm) optimized for automated placement |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, qualified to MSL level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical junction; conducts during negative transients relative to cathode reference |
| Cathode | Transient current entry (positive polarity) | Other terminal of symmetrical junction; conducts during positive transients - functionally interchangeable with anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 600 W peak pulse power | Withstands IEC 61000-4-5 4 kV surge test (line-to-ground) without degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving system-level immunity |
| UL 497B recognized | Approved as a primary protector for telecom/data lines per Underwriters Laboratories file E136766 |
| MSL level 1 moisture sensitivity | Enables standard reflow assembly without baking or dry-pack requirements |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
|
Use Scenario: Protecting 4–20 mA current-loop sensors and RS-485 transceivers from ESD and inductive kickback in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or supply rail to shunt transient energy to ground. Use Value: Limits induced voltage to ≤259 V during 2.3 A surges, preventing damage to precision analog front-ends and isolated interface ICs. |
Use Scenario: Shielding Ethernet PHYs and DSL line drivers against lightning-induced surges on twisted-pair telecom infrastructure. IC Role / Device Role / Timing Role: Primary overvoltage clamp on line-side transformer secondary windings or data port inputs. Use Value: Maintains signal integrity by clamping transients within 1 ns while sustaining 600 W peak power per IEC 61000-4-5 Ed.3 Annex A. |
| Automotive Body Control Module | Power Supply Input Stage |
|
Use Scenario: Safeguarding LIN bus nodes and LED driver ICs in door modules and lighting control units exposed to load-dump and jump-start events. IC Role / Device Role / Timing Role: Secondary-level transient suppressor downstream of main DC-DC converter, protecting low-voltage logic rails. Use Value: AEC-Q101 qualification ensures reliability across −40 °C to +125 °C ambient, with 150 °C max junction temperature margin. |
Use Scenario: Clamping input surges on 24 V industrial power supplies feeding PLC I/O cards and motor controllers. IC Role / Device Role / Timing Role: Front-end TVS across bulk input capacitor to absorb repetitive switching transients from upstream contactors or relays. Use Value: 100 °C/W thermal resistance enables stable operation at 5.0 W steady-state dissipation with minimal board area. |
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-M3/5B | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification | No functional difference; selected where halogen-free material compliance is mandated | Choose when environmental compliance requires halogen-free molding compound per JEDEC J-STD-020 |
| SMCJ160CAHE3/5B | Same VWM/VBR/VC, but SMC (DO-214AB) package - 20 % larger footprint, 1500 W PPPM | Higher power handling supports heavier-duty surge environments (e.g., outdoor base stations) | Select when system-level surge testing exceeds 600 W or layout allows larger SMC footprint |
Compared with SMBJ160CAHE3/5B, the M3 variant offers identical protection performance with halogen-free construction, while the SMCJ160CAHE3/5B trades compactness for 2.5× higher surge power - enabling design flexibility between space-constrained and high-energy threat scenarios.
Availability
SMBJ160CAHE3/5B is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body control modules, and 24 V power supply input stages requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ160CAHE3/5B 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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and industrial robustness.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting applications where consistent clamping, low leakage, and AEC-Q101 validation are mandatory for field longevity.
FAQ
What does the "CA" suffix indicate in SMBJ160CAHE3/5B?
The "CA" suffix denotes a bidirectional configuration: SMBJ160CAHE3/5B provides symmetrical clamping in both polarities, with identical VBR, VC, and IPPM values for positive and negative transients. This eliminates need for polarity-aware placement and simplifies layout for AC-coupled or floating signal lines - a key distinction from unidirectional "A" variants like SMBJ160AHE3/5B.
Is SMBJ160CAHE3/5B suitable for automotive applications?
Yes, SMBJ160CAHE3/5B is AEC-Q101 qualified (per ordering code HE3), validated for use in automotive electronics including body control modules, infotainment interfaces, and ADAS sensor subsystems. Its −55 °C to +150 °C junction temperature range, MSL level 1 rating, and UL 497B recognition meet critical automotive reliability and safety requirements.
How does SMBJ160CAHE3/5B differ from SMBJ160AHE3/5B?
SMBJ160CAHE3/5B is bidirectional with symmetrical clamping, while SMBJ160AHE3/5B is unidirectional - conducting only in reverse bias and requiring correct cathode orientation. The "CA" version has no polarity marking and supports AC transients; the "A" version offers lower leakage in DC-biased applications but cannot suppress positive-going surges without external circuitry.
What is the maximum clamping voltage of SMBJ160CAHE3/5B under surge conditions?
The maximum clamping voltage (VC) of SMBJ160CAHE3/5B is 259 V at its rated peak pulse current of 2.3 A (10/1000 µs waveform). This value is guaranteed per datasheet Table on page 2 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does SMBJ160CAHE3/5B require heatsinking in typical applications?
No dedicated heatsink is required for SMBJ160CAHE3/5B in standard surge-protection roles. Its RθJA = 100 °C/W is specified for mounting on 0.2" × 0.2" copper pads per terminal - sufficient for intermittent 600 W pulses at low duty cycle. Continuous power dissipation is limited to 5.0 W at 50 °C ambient, well above typical leakage-related heating in clamping operation.
SMBJ160CAHE3/5B 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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ160CAHE3/5B FAQ
1.How can I place an order for SMBJ160CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CAHE3/5B 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 SMBJ160CAHE3/5B reliable?
The price and inventory of SMBJ160CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ160CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CAHE3/5B?
SMBJ160CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CAHE3/5B 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 SMBJ160CAHE3/5B?
For technical support, including SMBJ160CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ160CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ160CAHE3/5B 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 SMBJ160CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ160CAHE3/5B?
All SMBJ160CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CAHE3/5B, 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 SMBJ160CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ160CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CAHE3/5B Tags
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