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Vishay General Semiconductor - Diodes Division SMBJ150CAHM3/H
- Part No.:
- SMBJ150CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CAHM3/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,813
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Product details
Overview
SMBJ150CAHM3/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 stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤243 V at 2.5 A IPPM - used in industrial motor drives, telecom power supplies, and automotive body control modules.
For engineers reviewing the SMBJ150CAHM3/H datasheet, SMBJ150CAHM3/H pinout, SMBJ150CAHM3/H application, or SMBJ150CAHM3/H equivalent, key selection criteria include bidirectional surge protection capability, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), thermal resistance (RθJA = 100 °C/W), and clamping performance under repetitive 10/1000 µs transients.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while MSL Level 1 moisture sensitivity supports lead-free reflow up to 260 °C.
The SMBJ150CAHM3/H delivers 600 W peak pulse power per IEC 61000-4-5 and ANSI/IEEE C62.35 standards, with a typical clamping voltage of 243 V at 2.5 A IPPM and temperature coefficient of VBR at +0.108 %/°C - confirming predictable derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 167–185 V at IT = 1 mA - guaranteed avalanche initiation range; ensures reliable turn-on during overvoltage events |
| VC (Clamping Voltage) | 243 V at IPPM = 2.5 A (10/1000 µs) - peak voltage seen by protected circuit during surge; determines stress on downstream components |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity for standardized 10/1000 µs waveform; validates robustness against lightning-induced surges |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - minimal standby current; avoids power loss or false triggering in high-impedance circuits |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood automotive or enclosed industrial environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated placement |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals function as anode and cathode depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal conducts when reverse-biased beyond VBR; no fixed polarity - enables AC or dual-polarity DC line protection |
| Terminal 2 | Anode/Cathode (bidirectional) | Identical role to Terminal 1; symmetric construction allows mounting without orientation check during assembly |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional transient suppression | Enables single-device protection of AC lines, differential buses, or ungrounded DC rails without external polarity management |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including body electronics and infotainment power rails per stress test requirements |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for industrial and consumer end equipment without compromising surge robustness |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) in properly designed PCB layouts |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT processes without pre-baking; eliminates moisture-related popcorning risk |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of DC bus inputs against switching transients from IGBT gate drive noise and inductive kickback. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across input terminals to limit surge voltage to <250 V. Use Value: Prevents MOSFET/IGBT overvoltage failure and extends system uptime in variable-frequency drives. |
Use Scenario: Input-stage surge suppression on 48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element shunting transients between +48 V and return rail. Use Value: Maintains output regulation integrity and avoids latch-up in downstream DC-DC controllers during field surges. |
| Automotive Body Control Modules | Consumer Appliance Control Boards |
Use Scenario: CAN bus power line protection in BCMs subjected to load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing >100 V spikes while remaining non-conductive during normal 12–14 V operation. Use Value: Ensures CAN transceiver survival under ISO 7637-2 Pulse 5a (load dump) without requiring additional series impedance. |
Use Scenario: Surge protection on AC mains input of smart washing machine control boards. IC Role / Device Role / Timing Role: Primary clamping device across bridge rectifier output to suppress MOV-failure-induced overshoot. Use Value: Reduces need for redundant protection stages and lowers BOM cost while meeting IEC 61000-4-5 Class B immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CAHE3/H | Same electrical specs and SMB package, but RoHS-compliant commercial grade (not halogen-free); lacks AEC-Q101 qualification | Suitable for non-automotive industrial or consumer use where halogen-free requirement is not mandated | Select when cost sensitivity outweighs halogen-free or automotive qualification needs |
| SMAJ150CAHM3 | Lower PPPM (400 W vs. 600 W); same VWM/VBR/VC; SMA (DO-214AC) package - smaller footprint (4.5 × 2.7 mm) and higher RθJA (150 °C/W) | Better suited for space-constrained, lower-energy surge environments (e.g., sensor interfaces) rather than power rail protection | Choose only if board area is critical and surge threat level is ≤Level 3 per IEC 61000-4-5 |
Compared with SMBJ150CAHE3/H and SMAJ150CAHM3, the SMBJ150CAHM3/H uniquely combines 600 W surge rating, AEC-Q101 qualification, and halogen-free compliance - making it the only option among the three qualified for automotive power rail protection with full environmental compliance.
Availability
SMBJ150CAHM3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ150CAHM3/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 targets high-energy transient suppression in automotive, industrial, and telecom systems - engineered for robust clamping, low leakage, and compatibility with automated manufacturing and harsh operating environments.
FAQ
What is the clamping voltage of SMBJ150CAHM3/H at its rated peak pulse current?
The SMBJ150CAHM3/H has a maximum clamping voltage (VC) of 243 V at a peak pulse current (IPPM) of 2.5 A under the 10/1000 µs waveform condition. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBJ150CAHM3/H suitable for automotive applications?
Yes, SMBJ150CAHM3/H is AEC-Q101 qualified (indicated by the HM3 suffix) and specifically tested for automotive-grade reliability, including temperature cycling, humidity bias, and mechanical shock. It is approved for use in body control modules, lighting drivers, and power distribution units where transient immunity to ISO 7637-2 pulses is required.
Does SMBJ150CAHM3/H have polarity markings on the package?
No, SMBJ150CAHM3/H is a bidirectional TVS diode and carries no polarity marking on the SMB (DO-214AA) case. Its symmetrical construction means either terminal functions as anode or cathode depending on the instantaneous polarity of the transient - eliminating orientation constraints during PCB layout and assembly.
What is the thermal resistance of SMBJ150CAHM3/H, and how does it affect layout design?
The SMBJ150CAHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended copper pads (0.2" × 0.2" per terminal). This value requires adequate PCB copper area for heat dissipation during repetitive surge events; reducing pad size increases junction temperature and may degrade long-term reliability or clamping consistency.
How does the HM3 suffix differ from the HE3 suffix in Vishay SMBJ part numbering?
The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, whereas HE3 indicates RoHS-compliant and AEC-Q101-qualified but not halogen-free. For SMBJ150CAHM3/H, this distinction confirms compliance with automotive OEM material declarations (e.g., GMW3032, Ford WSS-M99P9999-A1) requiring halogen-free packaging.
SMBJ150CAHM3/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:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for SMBJ150CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CAHM3/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/H reliable?
The price and inventory of SMBJ150CAHM3/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/H is usually 5 days.
3.What payment methods are accepted for SMBJ150CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CAHM3/H?
SMBJ150CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CAHM3/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/H?
For technical support, including SMBJ150CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CAHM3/H requirements.
6.How does Aetrix verify that SMBJ150CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ150CAHM3/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/H meets industry standards.
7.What is the process for return or replacement of SMBJ150CAHM3/H?
All SMBJ150CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CAHM3/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/H part is unused and in its original packaging.
Return procedure for SMBJ150CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150CAHM3/H Tags
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