My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ6.5AHE3/52
;;2.jpg)
- Part No.:
- SMBJ6.5AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5AHE3/52.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,568
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ6.5AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising voltage transients on power and signal lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 11.2 V maximum clamping voltage (VC) at 53.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor protection, industrial I/O interfaces, and DC power rail surge suppression.
For engineers reviewing the SMBJ6.5AHE3/52 datasheet, SMBJ6.5AHE3/52 pinout, SMBJ6.5AHE3/52 application, or SMBJ6.5AHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (via HE3 suffix), 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable VBR tolerance (±5%) and fast response time (<1 ps), enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (IEC 61000-4-5). The cathode-band marking denotes polarity for correct PCB orientation.
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting operation up to 150 °C junction temperature. It meets MSL Level 1 per J-STD-020 and is rated for 100 A non-repetitive forward surge current (IFSM) under 8.3 ms half-sine wave conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin above nominal 5 V supply rails. |
| VBR @ IT = 10 mA | 7.22–7.98 V - Verified breakdown range ensuring reliable turn-on during overvoltage events without premature conduction. |
| VC @ IPPM = 53.6 A | 11.2 V - Clamped voltage during 600 W transient; limits downstream IC stress to safe levels during surge events. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; supports robust protection against common industrial surges. |
| IFSM | 100 A - Single-half-sine surge current rating (8.3 ms); withstands high-energy inductive switch-offs without failure. |
| TJ max. | 150 °C - Maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Low-profile SMT package with 0.205" × 0.130" footprint; optimized for automated pick-and-place and thermal pad layout. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side connection | Connected to ground or lower-potential node; forms return path during clamping. |
| Cathode | Reverse-biased terminal / high-side connection | Connected to protected line (e.g., 5 V rail or signal trace); avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control modules and ADAS sensor interfaces with zero defect requirements. |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from relay coil de-energization or load dump without degradation. |
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, minimizing parameter drift in harsh environments. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free reflow profiles without moisture-related popcorning or delamination. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to downstream 5 V logic ICs. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and ground to clamp negative transients and limit positive overvoltage to ≤11.2 V. Use Value: Prevents permanent damage to 5 V-tolerant ADC front-ends and microcontroller GPIOs during 12 V battery system disturbances. |
Use Scenario: Shielding digital input channels of programmable logic controllers from inductive kickback caused by solenoid or motor contactor switching. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to absorb 600 W surge energy within <1 ns, maintaining signal integrity. Use Value: Eliminates false triggering and extends mean time between failures (MTBF) in factory automation systems operating at 24 V DC. |
| DC Power Rail Surge Suppression | USB/Serial Interface ESD Protection |
|
Use Scenario: Safeguarding 5 V DC-DC converter outputs feeding FPGAs or memory subsystems against lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of LDO regulators to divert >50 A transient currents away from sensitive loads. Use Value: Maintains regulated output stability during 1 kV/0.5 kΩ surge tests without regulator shutdown or brownout. |
Use Scenario: Adding secondary-level ESD protection on RS-232/RS-485 transceiver lines in medical instrumentation where primary protection resides at connector. IC Role / Device Role / Timing Role: Fast-response TVS shunting ±15 kV HBM ESD strikes to ground before reaching transceiver ESD diodes. Use Value: Reduces failure rate of isolated communication ICs in portable diagnostic devices subjected to repeated operator handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A-E3/52 | Commercial-grade version; lacks AEC-Q101 qualification and automotive traceability. | Approved for consumer electronics and non-automotive industrial use only. | Select when automotive qualification is not required and cost sensitivity is higher. |
| SMBJ6.5CAHE3/52 | Bidirectional variant; symmetric VBR (7.22–7.98 V) in both polarities; no polarity marking. | Required for AC-coupled or differential signal lines (e.g., RS-485, CAN FD) where bidirectional transients occur. | Choose only if protecting balanced or floating signals - not a drop-in replacement for unidirectional use cases. |
Compared with SMBJ6.5AHE3/52, the E3/52 variant offers identical electrical specs but no automotive qualification, while the SMBJ6.5CAHE3/52 provides symmetrical clamping essential for differential buses - neither is pin-compatible without circuit redesign due to polarity and application constraints.
Availability
SMBJ6.5AHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail surge suppression requiring stable component supply, AEC-Q101 compliance, and long-term production continuity.
Supply support for SMBJ6.5AHE3/52 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, ruggedness, and automotive-grade validation.
The SMBJ series is engineered for high-energy transient suppression in demanding environments - targeting automotive, industrial, and telecom infrastructure where robustness and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMBJ6.5AHE3/52 at its rated peak pulse current?
The SMBJ6.5AHE3/52 has a maximum clamping voltage (VC) of 11.2 V at 53.6 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuits during surge events. The SMBJ6.5AHE3/52 maintains this clamping performance across its specified operating temperature range and is validated per IEC 61000-4-5 test protocols.
Is SMBJ6.5AHE3/52 suitable for automotive applications?
Yes, SMBJ6.5AHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix, and is approved for use in automotive subsystems including body control modules, infotainment interfaces, and sensor signal conditioning. It undergoes rigorous stress testing for temperature cycling, humidity, and mechanical shock. The SMBJ6.5AHE3/52 meets automotive-grade traceability and lot-control requirements, making it appropriate for Tier 1 and OEM production programs.
How does the SMBJ6.5AHE3/52 differ from the SMBJ6.5A-E3/52?
The SMBJ6.5AHE3/52 includes AEC-Q101 qualification, extended temperature validation, and automotive-specific traceability, whereas the SMBJ6.5A-E3/52 is commercial-grade only. Both share identical electrical parameters (VWM, VBR, VC, PPPM) and SMB package dimensions. The SMBJ6.5AHE3/52 is designated for automotive and industrial applications requiring long-term reliability certification, while the E3/52 variant is intended for cost-sensitive consumer or general-purpose designs.
What is the thermal resistance of SMBJ6.5AHE3/52, and how does it affect PCB layout?
The SMBJ6.5AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain safe operation below 150 °C junction temperature, PCB layout must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the datasheet. Inadequate copper area increases thermal impedance and risks thermal runaway during repetitive surge events. The SMBJ6.5AHE3/52 requires no additional heatsinking under single-pulse conditions.
Can SMBJ6.5AHE3/52 be used in bidirectional signal protection?
No - SMBJ6.5AHE3/52 is a unidirectional TVS diode, with polarity marked by a cathode band; it conducts only in reverse bias and blocks forward current beyond ~3.5 V. For bidirectional protection (e.g., RS-485, CAN, AC lines), the SMBJ6.5CAHE3/52 variant must be used. Substituting SMBJ6.5AHE3/52 in bidirectional applications risks forward conduction, excessive leakage, or failure to clamp negative transients. Always verify polarity alignment in schematic and layout for the SMBJ6.5AHE3/52.
SMBJ6.5AHE3/52 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 53.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ6.5AHE3/52 FAQ
1.How can I place an order for SMBJ6.5AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5AHE3/52 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 SMBJ6.5AHE3/52 reliable?
The price and inventory of SMBJ6.5AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ6.5AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5AHE3/52?
SMBJ6.5AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5AHE3/52 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 SMBJ6.5AHE3/52?
For technical support, including SMBJ6.5AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5AHE3/52 requirements.
6.How does Aetrix verify that SMBJ6.5AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5AHE3/52 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 SMBJ6.5AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ6.5AHE3/52?
All SMBJ6.5AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5AHE3/52, 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 SMBJ6.5AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ6.5AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5AHE3/52 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 …
