My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ14AHE3_B/H
- Part No.:
- SMBJ14AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ14AHE3_B/H.pdf
- Description:
- 600W,14V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,580
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ14AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and ESD events on power and signal lines. It features a 14 V stand-off voltage (VWM), 23.2 V maximum clamping voltage (VC) at 25.9 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), commonly deployed to protect MOSFET gates, microcontroller I/O, and sensor interfaces in industrial motor drives.
For engineers reviewing the SMBJ14AHE3_B/H datasheet, SMBJ14AHE3_B/H pinout, SMBJ14AHE3_B/H application, or SMBJ14AHE3_B/H equivalent, key selection criteria include its AEC-Q101 qualification status, low 1.0 µA max reverse leakage at VWM, 15.6–17.2 V breakdown voltage range (VBR), and compatibility with automated SMT placement on standard PCB pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for stable avalanche behavior under repetitive surge conditions. Its thermal resistance (RθJA = 100 °C/W) and junction temperature limit (TJ max = 150 °C) support operation in ambient environments up to +85 °C when mounted per recommended 5.0 mm × 5.0 mm copper pad layout.
The SMBJ14AHE3_B/H delivers fast response time (<1 ns), low incremental surge resistance, and meets MSL Level 1 per J-STD-020 with peak reflow tolerance of 260 °C. Its 600 W peak pulse rating applies only under defined 10/1000 µs waveform conditions and derates linearly above TA = 25 °C per Fig. 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 14 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 15.6–17.2 V at 1.0 mA - Guaranteed avalanche initiation range; ensures reliable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 23.2 V at IPPM = 25.9 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capability under standardized 10/1000 µs waveform; defines transient robustness class. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | +150 °C - Maximum allowable junction temperature; sets thermal design limits for PCB copper area and airflow. |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" x 0.155" footprint; compatible with JEDEC-standard pick-and-place equipment. |
Pinout & Package
SMBJ14AHE3_B/H uses the SMB (DO-214AA) package: a molded plastic case with matte tin-plated leads, 0.220" × 0.155" body size, and cathode band marking on the anode side. Leads are solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; forms current path during reverse-biased clamping. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V rail or sensor output); carries full surge current into ground via anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per AEC specification. |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift in humid environments. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) without degradation when properly heatsinked. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak without popcorn or delamination risk. |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS compliance; HM3 variant adds halogen-free molding compound for stringent environmental programs. |
Applications
| Industrial Motor Drive Control | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protection of gate drivers and logic-level signals against back-EMF spikes from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MOSFET gate and source to clamp negative-going transients below -0.7 V. Use Value: Prevents gate oxide rupture and latch-up in 3.3 V/5 V logic interfaces while maintaining <1.0 µA leakage at 14 V rail. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins from load dump and jump-start surges. IC Role / Device Role / Timing Role: Standoff-clamp device on 12 V supply rail upstream of LDO regulators and CAN/LIN interface ICs. Use Value: Limits clamped voltage to 23.2 V during 10/1000 µs surges, staying within absolute maximum ratings of AEC-Q100 qualified MCUs. |
| Consumer Appliance Power Supply | Industrial Sensor Signal Conditioning |
|
Use Scenario: Input-stage protection for AC-DC adapters and DC-DC converters exposed to mains-borne transients. IC Role / Device Role / Timing Role: Primary-side TVS across bulk capacitor terminals to absorb differential-mode surges before rectification. Use Value: Withstands 600 W pulses without parametric shift, enabling compliance with IEC 61000-4-4 (EFT) and UL 1449 requirements. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors from cable-coupled lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS used in series with current-limiting resistor on sensor output line. Use Value: Clamps transients to ≤23.2 V while adding <0.5 pF junction capacitance-negligible impact on 1 kHz bandwidth signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14AHM3_B/H | Halogen-free molding compound; identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free compliance is mandated by OEM or regional regulations. | Choose SMBJ14AHM3_B/H when environmental compliance requires halogen-free materials without sacrificing performance. |
| SMBJ14A-E3/52 | Commercial-grade (non-AEC-Q101), same SMB package and VWM/VC specs; RoHS-compliant but not automotive-qualified. | Suitable for non-automotive industrial or consumer applications where AEC-Q101 is not required. | Select SMBJ14A-E3/52 for cost-sensitive designs outside automotive or mission-critical systems. |
Compared with SMBJ14AHE3_B/H, the HM3 variant offers identical surge performance with halogen-free construction, while the E3/52 version provides equivalent clamping and footprint at lower qualification cost-enabling tiered sourcing based on end-equipment reliability requirements.
Availability
SMBJ14AHE3_B/H is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and sensor interface designs requiring stable component supply with AEC-Q101 assurance and long-term production continuity.
Supply support for SMBJ14AHE3_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, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where repeatable clamping performance and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMBJ14AHE3_B/H at its rated peak pulse current?
The SMBJ14AHE3_B/H has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current (IPPM) of 25.9 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C with specified mounting conditions (0.2" × 0.2" copper pads), and represents the highest voltage the protected circuit will experience during such a transient event. The SMBJ14AHE3_B/H maintains this clamping performance across its qualified temperature range.
Is SMBJ14AHE3_B/H suitable for automotive applications?
Yes, SMBJ14AHE3_B/H is AEC-Q101 qualified, making it suitable for automotive applications including body control modules, lighting drivers, and power distribution units. Its qualification covers stress tests such as high-temperature reverse bias (HTRB), temperature cycling, and surge endurance-ensuring reliability in vehicle environments. The HE3 suffix explicitly denotes this automotive-grade qualification, distinguishing it from commercial variants like SMBJ14A-E3/52.
What does the "HE3" suffix mean in SMBJ14AHE3_B/H?
The "HE3" suffix in SMBJ14AHE3_B/H indicates RoHS-compliant construction with AEC-Q101 qualification. "H" denotes AEC-Q101 qualification, "E3" confirms RoHS compliance and commercial-grade reliability level. The "_B/H" ending specifies packaging: "B" refers to the revision code, and "H" identifies the 7" tape-and-reel delivery mode with 750 units per reel. This full suffix ensures traceability to both process qualification and logistics configuration.
How does SMBJ14AHE3_B/H differ from bidirectional SMBJ14CA variants?
SMBJ14AHE3_B/H is unidirectional, with polarity marked by a cathode band and intended for DC-line protection where reverse conduction must be blocked. In contrast, SMBJ14CA is bidirectional, offering symmetrical clamping for AC lines or differential signal pairs. Their VWM (14 V vs. 14 V), VC (23.2 V vs. 23.2 V), and PPPM (600 W) are identical, but SMBJ14AHE3_B/H cannot replace SMBJ14CA in AC-coupled applications without circuit redesign due to its inherent polarity dependence.
What is the maximum reverse leakage current for SMBJ14AHE3_B/H at its stand-off voltage?
The maximum reverse leakage current (ID) for SMBJ14AHE3_B/H is 1.0 µA at its stand-off voltage (VWM) of 14 V and TA = 25 °C. This low leakage ensures minimal power loss and signal distortion in high-impedance monitoring circuits or battery-powered systems. Leakage remains within specification up to TJ = 125 °C, though it increases exponentially beyond that point per the device's thermal coefficient profile.
SMBJ14AHE3_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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 25.9A
- 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)
SMBJ14AHE3_B/H FAQ
1.How can I place an order for SMBJ14AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ14AHE3_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 SMBJ14AHE3_B/H reliable?
The price and inventory of SMBJ14AHE3_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 SMBJ14AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ14AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ14AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ14AHE3_B/H?
SMBJ14AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ14AHE3_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 SMBJ14AHE3_B/H?
For technical support, including SMBJ14AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ14AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ14AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ14AHE3_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 SMBJ14AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ14AHE3_B/H?
All SMBJ14AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ14AHE3_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 SMBJ14AHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ14AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ14AHE3_B/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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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 …
