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Vishay General Semiconductor - Diodes Division SMBJ150CAHM3_A/H
- Part No.:
- SMBJ150CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CAHM3_A/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,278
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Product details
Overview
SMBJ150CAHM3_A/H 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 150 V standoff voltage (VWM), 167–185 V breakdown range (VBR at 1 mA), 243 V maximum clamping voltage (VC) at 2.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial motor drives.
For engineers reviewing the SMBJ150CAHM3_A/H datasheet, SMBJ150CAHM3_A/H pinout, SMBJ150CAHM3_A/H application, or SMBJ150CAHM3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports rapid energy dissipation during ESD or lightning-induced surges.
The device is rated for repetitive 0.01% duty cycle pulses and derates linearly above 25 °C ambient per Fig. 2; its 150 °C maximum junction temperature and MSL Level 1 moisture sensitivity support reflow soldering up to 260 °C peak. The SMB package provides mechanical robustness and thermal performance suitable for high-reliability industrial and automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 167 V / 185 V at 1 mA - Confirmed breakdown threshold range defining turn-on consistency |
| VC @ IPPM | 243 V at 2.5 A - Clamped voltage during 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 600 W - Peak pulse power handling capacity under standard transient waveform |
| IPPM | 2.5 A - Peak surge current corresponding to VC = 243 V |
| TJ max. | +150 °C - Maximum junction temperature enabling operation in hot environments like engine bays |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; device functions identically regardless of orientation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses, or ungrounded circuits without polarity constraints |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for industrial and automotive end equipment |
| MSL Level 1 | Supports lead-free reflow up to 260 °C peak without preconditioning or baking |
| 600 W 10/1000 µs rating | Handles typical ISO 7637-2 pulse 1/2/5a and IEC 61000-4-5 surge events in industrial control systems |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from relay coils and solenoids. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across DC bus or signal inputs to clamp spikes before they reach sensitive logic. Use Value: Limits transient voltage to ≤243 V, preventing latch-up or permanent damage to microcontrollers and isolated gate drivers. | Use Scenario: Surge suppression on LIN bus lines and power supply rails in door modules and lighting controllers. IC Role / Device Role / Timing Role: Bidirectional TVS absorbing load dump and jump-start transients on 12 V systems. Use Value: Withstands 600 W surges and operates reliably from −55 °C to +150 °C, meeting automotive thermal requirements. |
| Industrial Sensor Interfaces | Telecom Power Supply Inputs |
Use Scenario: Input protection for analog front-ends in pressure, temperature, and current sensors exposed to field wiring transients. IC Role / Device Role / Timing Role: First-line defense against ESD and fast-rising transients coupled via long cables. Use Value: Sub-1 µA leakage at 150 V ensures minimal impact on precision measurement accuracy and offset stability. | Use Scenario: Secondary overvoltage protection on DC-DC converter inputs after primary MOV-based surge suppression. IC Role / Device Role / Timing Role: Fast-response clamping element that activates within picoseconds to limit residual overshoot. Use Value: 243 V clamping voltage ensures downstream regulators remain within absolute maximum ratings during 10/1000 µs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CAHE3_A/H | RoHS-compliant but not halogen-free; same electrical specs and AEC-Q101 qualification | Preferred where halogen content is unrestricted but automotive qualification is required | Select when cost optimization is prioritized over halogen-free material compliance |
| SMBJ150CA-E3/52 | Commercial grade, non-AEC-Q101, RoHS-compliant, same SMB package and electrical ratings | Suitable for consumer or industrial applications without automotive reliability requirements | Choose for cost-sensitive designs where extended temperature and qualification testing are unnecessary |
Compared with SMBJ150CAHM3_A/H, the HE3 variant offers identical performance with standard RoHS compliance but lacks halogen-free certification, while the E3 version omits AEC-Q101 qualification and is intended for less demanding environments - making SMBJ150CAHM3_A/H the optimal choice for automotive and high-reliability industrial deployments requiring both halogen-free construction and automotive-grade validation.
Availability
SMBJ150CAHM3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, industrial sensor interfaces, and telecom power supply inputs requiring stable component supply and full traceability.
Supply support for SMBJ150CAHM3_A/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 and application-specific performance.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial automation, and telecom infrastructure where failure modes must be mitigated through validated clamping performance and thermal resilience.
FAQ
What is the clamping voltage of SMBJ150CAHM3_A/H at its rated peak pulse current?
The SMBJ150CAHM3_A/H has a maximum clamping voltage (VC) of 243 V at its specified peak pulse current of 2.5 A under a 10/1000 µs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ150CAHM3_A/H maintains this clamping performance across its full operating temperature range, ensuring consistent protection behavior in real-world conditions.
Is SMBJ150CAHM3_A/H suitable for automotive applications?
Yes, SMBJ150CAHM3_A/H is AEC-Q101 qualified and specifically designed for automotive use, including body control modules and power distribution units. Its halogen-free, RoHS-compliant construction, MSL Level 1 rating, and guaranteed operation from −55 °C to +150 °C meet stringent automotive reliability requirements. The SMBJ150CAHM3_A/H undergoes accelerated stress testing per JESD22, confirming suitability for under-hood and chassis-mounted applications where thermal and mechanical robustness are critical.
How does the bidirectional configuration of SMBJ150CAHM3_A/H affect PCB layout?
The SMBJ150CAHM3_A/H has no polarity marking and functions identically in either orientation, simplifying PCB layout by eliminating orientation checks during automated placement. This symmetry allows direct placement across differential lines (e.g., RS-485, CAN), AC-coupled signals, or ungrounded power rails without concern for anode/cathode alignment. The SMBJ150CAHM3_A/H's DO-214AA footprint remains unchanged versus unidirectional variants, enabling design reuse where bidirectional protection is needed.
What is the maximum leakage current of SMBJ150CAHM3_A/H at its standoff voltage?
At its 150 V standoff voltage (VWM), the SMBJ150CAHM3_A/H exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C, per the Vishay SMBJ5.0A–SMBJ188A datasheet. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and avoids loading effects in precision analog circuits. The SMBJ150CAHM3_A/H maintains leakage below 5 µA even at elevated temperatures up to 125 °C, supporting stable operation in thermally demanding environments.
Does SMBJ150CAHM3_A/H require derating at elevated ambient temperatures?
Yes, SMBJ150CAHM3_A/H requires thermal derating above 25 °C ambient, following the linear derating curve in Figure 2 of the Vishay datasheet. Its peak pulse power capability decreases by approximately 0.8% per °C rise above 25 °C, reaching ~50% of rated 600 W at 100 °C ambient. This derating is essential for maintaining safe junction temperatures and ensuring reliable clamping performance in enclosed or high-temperature enclosures - a requirement explicitly defined for the SMBJ150CAHM3_A/H in its thermal characteristics table.
SMBJ150CAHM3_A/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:
- Obsolete
- 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)
SMBJ150CAHM3_A/H FAQ
1.How can I place an order for SMBJ150CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CAHM3_A/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 SMBJ150CAHM3_A/H reliable?
The price and inventory of SMBJ150CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ150CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CAHM3_A/H?
SMBJ150CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CAHM3_A/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 SMBJ150CAHM3_A/H?
For technical support, including SMBJ150CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CAHM3_A/H requirements.
6.How does Aetrix verify that SMBJ150CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ150CAHM3_A/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 SMBJ150CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ150CAHM3_A/H?
All SMBJ150CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CAHM3_A/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 SMBJ150CAHM3_A/H part is unused and in its original packaging.
Return procedure for SMBJ150CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150CAHM3_A/H Tags
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