My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ150AHM3_A/H
- Part No.:
- SMBJ150AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150AHM3_A/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,830
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ150AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (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.
For engineers reviewing the SMBJ150AHM3_A/H datasheet, SMBJ150AHM3_A/H pinout, SMBJ150AHM3_A/H application, or SMBJ150AHM3_A/H equivalent, this device is selected for robust overvoltage protection in automotive power rails, industrial sensor interfaces, and telecom DC supply lines where fast response (<1 ns), low clamping ratio, and AEC-Q101 qualification are required.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, leveraging glass-passivated junction technology for stable breakdown behavior and low incremental surge resistance. Its thermal resistance (RθJA = 100 °C/W) and junction temperature range (–55 °C to +150 °C) support operation in high-ambient environments without forced cooling when mounted on 5.0 mm × 5.0 mm copper pads.
The SMBJ150AHM3_A/H exhibits a temperature coefficient of VBR at 0.108 %/°C and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its halogen-free, RoHS-compliant construction (HM3 suffix) and AEC-Q101 qualification confirm suitability for automotive-grade designs requiring long-term reliability under repetitive surge stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 167–185 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 243 V at IPPM = 2.5 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 µs surge; enables protection against IEC 61000-4-5 Level 3/4 events. |
| ID (Reverse Leakage) | 1.0 µA max. at VWM - Minimal standby current leakage; preserves efficiency in always-on power rails. |
| TJ max. | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive or industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with cathode band marking; compatible with automated pick-and-place and reflow processes. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or low-side reference in unidirectional clamp configuration; defines polarity-sensitive placement. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); band-marked end must align with schematic cathode symbol. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-event suppression of high-energy transients up to 2.5 A without degradation, meeting IEC 61000-4-5 requirements. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units and body electronics, with extended temperature cycling and humidity testing. |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for EU, China RoHS, and automotive OEM sustainability programs without compromising surge performance. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage overshoot during clamping-critical for protecting 150 V-rated MOSFETs and gate drivers in DC-DC converters. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture-related delamination risk; eliminates pre-bake requirement. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going surges above 150 V. Use Value: Limits peak voltage to 243 V during 2.5 A surge, preventing damage to downstream LDOs and microcontrollers rated for ≤28 V absolute max. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable-induced transients in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS installed at connector interface to shunt fast transients before reaching signal conditioning op-amps. Use Value: Sub-1 ns response time and <1 µA leakage preserve signal integrity and offset accuracy in µV-level measurement circuits. |
| Telecom DC Power Input Protection | Motor Drive Gate Driver Protection |
|
Use Scenario: Safeguarding -48 V telecom rectifier outputs against lightning-induced surges on outdoor plant equipment. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, absorbing common-mode surges coupled onto DC bus. Use Value: 600 W rating sustains repeated 10/1000 µs surges per GR-1089-CORE, ensuring uptime in harsh outdoor deployments. |
Use Scenario: Preventing gate oxide rupture in high-side N-channel MOSFET drivers due to Miller-induced voltage spikes. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp dv/dt-induced overshoot during high-speed switching. Use Value: Tight VBR tolerance (±5.4%) and low VC ensure clamping occurs before gate-source breakdown (typically ±20 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150AHE3_A/H | RoHS-compliant but not halogen-free; same electrical specs and AEC-Q101 qualification. | Acceptable for commercial automotive modules where halogen content is unrestricted. | Select when cost sensitivity outweighs halogen-free requirement and full AEC-Q101 compliance is mandatory. |
| SMAJ150A-HF | Smaller SMA (DO-214AC) package; lower PPPM (400 W); identical VWM/VBR/VC ratings. | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Choose only for space-constrained consumer electronics where 400 W surge capacity suffices and PCB layout cannot accommodate SMB footprint. |
Compared with SMBJ150AHM3_A/H, the HE3 variant trades halogen-free status for slightly lower cost while retaining AEC-Q101 qualification, whereas the SMAJ150A-HF sacrifices 33 % peak power handling and thermal robustness for footprint reduction-neither is pin-compatible due to differing package outlines and thermal pad requirements.
Availability
SMBJ150AHM3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMBJ150AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMBJ series is engineered for high-reliability transient suppression in automotive, industrial, and telecom infrastructure-designed to replace older P6KE and 1.5KE families with improved surge robustness and AEC-Q101 compliance.
FAQ
What is the clamping voltage of SMBJ150AHM3_A/H at its rated peak pulse current?
The SMBJ150AHM3_A/H has a maximum clamping voltage (VC) of 243 V when subjected to a 10/1000 µs waveform peak pulse current (IPPM) of 2.5 A. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ150AHM3_A/H maintains this clamping performance across its specified operating temperature range.
Is SMBJ150AHM3_A/H suitable for automotive applications?
Yes, SMBJ150AHM3_A/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets requirements for under-hood and chassis-mounted modules exposed to temperature cycling, humidity, and repetitive surge stress. Its 150 °C TJ max. and MSL Level 1 rating further support reflow compatibility and long-term reliability in automotive ECUs and body control units.
What does the "HM3" suffix indicate in SMBJ150AHM3_A/H?
The "HM3" suffix in SMBJ150AHM3_A/H denotes halogen-free, RoHS-compliant packaging with AEC-Q101 qualification. It distinguishes this variant from the E3 (RoHS-compliant only) and HE3 (RoHS + AEC-Q101, but not halogen-free) versions. The HM3 construction satisfies stringent environmental mandates from major automotive OEMs and industrial standards bodies without compromising electrical or thermal performance.
How does SMBJ150AHM3_A/H compare to bidirectional TVS diodes like SMBJ150CA?
SMBJ150AHM3_A/H is unidirectional and intended for DC line protection where polarity is fixed (e.g., +12 V rail to ground), offering lower leakage and higher surge current capability in the forward direction. In contrast, SMBJ150CA is bidirectional and suited for AC or floating signal lines. They are not interchangeable without circuit redesign-using SMBJ150AHM3_A/H in place of SMBJ150CA would leave negative transients unprotected.
What is the thermal resistance of SMBJ150AHM3_A/H, and how does it affect layout?
The SMBJ150AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under sustained surge duty, PCB layout must provide adequate copper area and avoid thermal bottlenecks. Reducing pad size or using thinner copper increases RθJA and risks thermal runaway during repetitive events.
SMBJ150AHM3_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:
- 1
- Bidirectional Channels:
- -
- 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)
SMBJ150AHM3_A/H FAQ
1.How can I place an order for SMBJ150AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150AHM3_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 SMBJ150AHM3_A/H reliable?
The price and inventory of SMBJ150AHM3_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 SMBJ150AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ150AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150AHM3_A/H?
SMBJ150AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150AHM3_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 SMBJ150AHM3_A/H?
For technical support, including SMBJ150AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150AHM3_A/H requirements.
6.How does Aetrix verify that SMBJ150AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ150AHM3_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 SMBJ150AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ150AHM3_A/H?
All SMBJ150AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150AHM3_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 SMBJ150AHM3_A/H part is unused and in its original packaging.
Return procedure for SMBJ150AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150AHM3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
