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Vishay General Semiconductor - Diodes Division SMBJ150CAHE3_B/H
- Part No.:
- SMBJ150CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CAHE3_B/H.pdf
- Description:
- 600W,150V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,834
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Product details
Overview
SMBJ150CAHE3_B/H 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 a 150 V standoff voltage (VWM), 167–185 V breakdown range (VBR), 243 V clamping voltage (VC) at 2.5 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ150CAHE3_B/H datasheet, SMBJ150CAHE3_B/H pinout, SMBJ150CAHE3_B/H application, or SMBJ150CAHE3_B/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature limit (TJ max = 150 °C), and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under transient overvoltage events exceeding VWM (150 V), it avalanches symmetrically in both directions to clamp the line at ≤243 V while diverting up to 2.5 A (10/1000 µs). Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM).
Designed for automated SMT assembly, the device meets J-STD-020 MSL Level 1 (peak reflow 260 °C), has matte tin-plated leads compliant with JESD 22-B102, and supports repetitive surge duty cycles up to 0.01%. The bidirectional configuration eliminates polarity concerns in AC-coupled or differential signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 167 V / 185 V at IT = 1 mA - guaranteed symmetric breakdown threshold in both directions |
| VC @ IPPM | 243 V at 2.5 A (10/1000 µs) - peak clamped voltage limiting stress on downstream ICs |
| PPPM | 600 W - surge energy handling capacity per single transient event |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserving signal integrity and standby power efficiency |
| TJ max | +150 °C - extended thermal operating range suitable for under-hood and industrial enclosures |
| RθJA | 100 °C/W - thermal resistance defining derating curve above TA = 25 °C |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (bidirectional) | One terminal of the symmetrical avalanche junction; connects to protected line |
| Cathode | Transient current sink (bidirectional) | Second terminal of the symmetrical avalanche junction; connects to ground or reference rail |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses (e.g., RS-485), and ungrounded systems without polarity constraints |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV surge) on 2 Ω source impedance when properly laid out |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes let-through voltage during transients, reducing risk of latch-up or gate oxide damage in MOSFETs and ICs |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile compatibility without baking preconditioning |
Applications
| Industrial Motor Drives | Telecom Line Interface |
|---|---|
Use Scenario: Protection of gate driver supply rails against inductive kickback from IGBT/MOSFET switching. IC Role / Device Role / Timing Role: Shunt TVS placed between VDD and GND to clamp voltage spikes before they reach driver IC inputs. Use Value: Limits transient overshoot to ≤243 V, preventing gate oxide breakdown in 150 V-rated drivers and ensuring >100,000-cycle reliability. |
Use Scenario: Surge suppression on RJ-45 Ethernet PHY lines exposed to lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential pair (e.g., TX+/TX−) referenced to chassis ground. Use Value: Symmetric response handles common-mode and differential-mode transients per IEC 61000-4-5, maintaining signal integrity below 100 Mbps operation. |
| Automotive Body Control Module | Consumer Appliance Power Supply |
Use Scenario: Input protection for LIN bus transceivers connected to battery-supplied 12 V lines subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of regulator input, rated for AEC-Q101 automotive qualification. Use Value: Survives 12 V system transients up to ±100 V/50 ms (pulse 5a), enabling single-stage protection without series impedance. |
Use Scenario: Secondary-side DC bus protection in switched-mode power supplies for washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor output to suppress switching noise and relay bounce spikes. Use Value: 150 V VWM matches 13.8–14.4 V nominal 12 V rail after rectification, avoiding false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA-M3 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification | No functional difference; selected where halogen-free material compliance is mandated | Choose SMBJ150CA-M3 when environmental compliance requires halogen-free packaging |
| SMBJ150AHE3_B/H | Unidirectional version - cathode-marked, asymmetric IV curve, VF = 3.5 V max at 50 A | Requires correct polarity placement; unsuitable for AC or floating differential lines | Use SMBJ150AHE3_B/H only when protecting DC rails with known polarity and needing forward conduction capability |
Compared with SMBJ150CAHE3_B/H, the unidirectional SMBJ150AHE3_B/H offers forward conduction but lacks bidirectional symmetry, while SMBJ150CA-M3 provides identical protection performance with halogen-free construction - making SMBJ150CAHE3_B/H optimal for cost-sensitive, non-halogen-restricted automotive and industrial designs requiring polarity-agnostic clamping.
Availability
SMBJ150CAHE3_B/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, automotive body control modules, and consumer appliance power supplies requiring stable component supply with AEC-Q101 qualification and UL 497B recognition.
Supply support for SMBJ150CAHE3_B/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 validation.
The SMBJ series delivers high-power transient suppression in compact SMB packages, engineered specifically for harsh-environment applications demanding repeatable clamping, low leakage, and long-term stability under thermal and surge stress.
FAQ
What is the clamping voltage of SMBJ150CAHE3_B/H at its rated peak pulse current?
The SMBJ150CAHE3_B/H has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current of 2.5 A using the standardized 10/1000 µs waveform. This value is measured under specified test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring compatibility with 150 V-rated downstream components.
Is SMBJ150CAHE3_B/H qualified for automotive applications?
Yes, SMBJ150CAHE3_B/H is AEC-Q101 qualified, meaning it has passed stress tests including high-temperature reverse bias, temperature cycling, and accelerated life testing required for automotive electronic components. The "HE3" suffix explicitly denotes this qualification, making SMBJ150CAHE3_B/H suitable for use in body control modules, infotainment power supplies, and other non-safety-critical vehicle subsystems.
How does the bidirectional design of SMBJ150CAHE3_B/H affect PCB layout?
The bidirectional design of SMBJ150CAHE3_B/H eliminates polarity marking and allows placement across any two nodes requiring symmetrical overvoltage protection - such as differential signal pairs or AC-coupled lines. Unlike unidirectional TVS diodes, SMBJ150CAHE3_B/H requires no orientation check during placement, simplifying automated assembly and reducing risk of misorientation-related field failures.
What is the maximum junction temperature rating for SMBJ150CAHE3_B/H?
The SMBJ150CAHE3_B/H has a maximum junction temperature (TJ max) rating of +150 °C, enabling reliable operation in high-ambient environments such as engine compartments, industrial enclosures, and sealed power converters. This rating supports continuous operation at full power dissipation (5.0 W) when mounted on recommended 0.2" × 0.2" copper pads, with thermal derating applied above 25 °C ambient per Figure 2 in the datasheet.
Does SMBJ150CAHE3_B/H meet UL safety standards?
Yes, SMBJ150CAHE3_B/H is Underwriters Laboratories (UL) recognized under standard UL 497B for surge protective devices, with file number E136766. This certification confirms its suitability for use in telecommunications and data line protection applications where regulatory compliance for transient suppression is mandatory - including telecom infrastructure equipment and industrial Ethernet gateways.
SMBJ150CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
SMBJ150CAHE3_B/H FAQ
1.How can I place an order for SMBJ150CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CAHE3_B/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 SMBJ150CAHE3_B/H reliable?
The price and inventory of SMBJ150CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ150CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CAHE3_B/H?
SMBJ150CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CAHE3_B/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 SMBJ150CAHE3_B/H?
For technical support, including SMBJ150CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CAHE3_B/H requirements.
6.How does Aetrix verify that SMBJ150CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ150CAHE3_B/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 SMBJ150CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ150CAHE3_B/H?
All SMBJ150CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CAHE3_B/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 SMBJ150CAHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ150CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150CAHE3_B/H Tags
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