My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ64AHE3_B/H
- Part No.:
- SMBJ64AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64AHE3_B/H.pdf
- Description:
- 600W,64V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,659
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ64AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 103 V maximum clamping voltage (VC) at 5.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and automotive ECUs.
For engineers reviewing the SMBJ64AHE3_B/H datasheet, SMBJ64AHE3_B/H pinout, SMBJ64AHE3_B/H application, or SMBJ64AHE3_B/H equivalent, this device delivers AEC-Q101 qualification, low incremental surge resistance, fast response time (<1 ns), and MSL Level 1 moisture sensitivity - critical for high-reliability board-level ESD and lightning surge protection in automotive and industrial designs.
Technical Context
This unidirectional TVS diode operates as a clamping device that remains non-conductive below its 64 V stand-off voltage and rapidly transitions to low-impedance conduction when transient voltages exceed its 71.1–78.6 V breakdown range. Its junction structure uses glass-passivated silicon for stable leakage performance and repeatable clamping behavior under repetitive surges.
The SMBJ64AHE3_B/H is rated for 100 A peak forward surge current (IFSM, 8.3 ms half-sine), supports continuous power dissipation of 5.0 W at 50 °C ambient, and exhibits a thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads - enabling predictable thermal design in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 64 V - maximum continuous reverse voltage before significant leakage; defines operating margin for protected circuitry |
| VBR (Breakdown Voltage) | 71.1–78.6 V at 1 mA - precise threshold where clamping initiates; ensures reliable turn-on without false triggering |
| VC (Clamping Voltage) | 103 V at 5.8 A (10/1000 µs) - limits transient voltage seen by downstream ICs to safe levels during surge events |
| PPPM (Peak Pulse Power) | 600 W - sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure |
| IPPM (Peak Pulse Current) | 5.8 A - maximum surge current handled at rated clamping voltage; determines protection capability against defined threats |
| TJ max. | 150 °C - enables operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures |
| Package | SMB (DO-214AA) - industry-standard SMD outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band. Matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes clamping path during transient |
| Cathode | High-side connection point | Connected to protected line (e.g., 64 V rail); polarity marking ensures correct orientation in layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients common in 12 V/24 V vehicle electrical systems and industrial power supplies |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes voltage overshoot during clamping - critical for protecting 75 V-rated MOSFETs and gate drivers |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow profiles without preconditioning or baking |
| Glass-passivated junction | Ensures stable leakage current (<1 µA at VWM) and long-term reliability under thermal cycling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 64 V battery-fed microcontrollers and CAN transceivers in commercial vehicle telematics modules from load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power input and local regulator input. Use Value: Limits voltage to ≤103 V during 600 W surges, preventing latch-up or permanent damage to downstream 75 V-rated ICs. | Use Scenario: Safeguarding analog front-end inputs of pressure sensors in hydraulic control valves exposed to inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting transient energy directly at sensor connector entry point. Use Value: Clamps sub-100 ns spikes to safe levels while maintaining signal integrity due to minimal parasitic capacitance. |
| Telecom DC Power Input Protection | Motor Drive Gate Driver Protection |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: Standoff-rated TVS on primary DC bus, coordinated with upstream fusing. Use Value: Absorbs up to 600 W pulses without degradation, preserving uptime in mission-critical infrastructure. | Use Scenario: Shielding high-side IGBT gate drivers in servo inverters from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: Localized clamping device mounted adjacent to driver IC output pins. Use Value: Fast <1 ns response prevents gate oxide overstress; 103 V clamp aligns with driver's absolute maximum rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64AHM3_B/H | Halogen-free, RoHS-compliant, AEC-Q101 qualified - identical electrical specs and package | No functional difference; selected when halogen-free compliance is mandated by OEM specifications | Direct material substitution where halogen content must be minimized per IPC-1752A |
| SMCJ64AHE3_A/H | Larger SMC (DO-214AB) package; same VWM, VBR, VC, but higher 1500 W PPPM and 13.3 A IPPM | Used where higher surge energy handling is required, e.g., main DC input vs. secondary rail protection | Choose when system-level surge testing exceeds 600 W; requires PCB layout change due to larger footprint |
Compared with SMBJ64AHE3_B/H, SMBJ64AHM3_B/H offers identical protection performance with halogen-free construction, while SMCJ64AHE3_A/H provides 2.5× higher surge capacity in a larger package - enabling tiered protection architecture across different board locations.
Availability
SMBJ64AHE3_B/H is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor interfaces, telecom power inputs, and motor drive gate driver circuits requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBJ64AHE3_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, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive-grade qualification.
The SMBJ series is engineered specifically for board-level transient suppression in harsh environments - balancing compact size, high surge capability, and AEC-Q101 compliance for automotive and industrial power systems.
FAQ
What is the clamping voltage of SMBJ64AHE3_B/H at its rated peak pulse current?
The SMBJ64AHE3_B/H has a maximum clamping voltage (VC) of 103 V at 5.8 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring compatibility with downstream components rated for ≤110 V absolute maximum.
Is SMBJ64AHE3_B/H qualified for automotive applications?
Yes, SMBJ64AHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88392. This qualification covers stress tests including temperature cycling, humidity bias HAST, and mechanical shock - validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS power supplies.
What does the "B/H" suffix indicate in SMBJ64AHE3_B/H?
The "B/H" suffix in SMBJ64AHE3_B/H denotes the packaging configuration: "B" specifies the revision level (per Vishay's internal revision coding), and "H" indicates the preferred package code for 7" diameter plastic tape and reel with 750 units per reel. This matches the ordering information table in datasheet 88392 and ensures correct logistics and assembly handling.
How does SMBJ64AHE3_B/H differ from bidirectional variants like SMBJ64CA?
SMBJ64AHE3_B/H is unidirectional, with polarity marked by a cathode band and intended for DC line protection where reverse voltage is blocked. In contrast, SMBJ64CA is bidirectional - symmetrical in both directions, no polarity marking, and used in AC-coupled or floating signal paths. Their VBR and VC values differ accordingly, and they are not interchangeable without circuit redesign.
What is the thermal resistance of SMBJ64AHE3_B/H, and how does it affect PCB layout?
SMBJ64AHE3_B/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 TJ ≤150 °C under 5.0 W continuous dissipation, designers must ensure adequate copper area and avoid excessive ambient temperature - underscoring the need for verified pad layout per Vishay's recommended footprint.
SMBJ64AHE3_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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
SMBJ64AHE3_B/H FAQ
1.How can I place an order for SMBJ64AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64AHE3_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 SMBJ64AHE3_B/H reliable?
The price and inventory of SMBJ64AHE3_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 SMBJ64AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ64AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64AHE3_B/H?
SMBJ64AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64AHE3_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 SMBJ64AHE3_B/H?
For technical support, including SMBJ64AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ64AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ64AHE3_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 SMBJ64AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ64AHE3_B/H?
All SMBJ64AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64AHE3_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 SMBJ64AHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ64AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64AHE3_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 …
