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Vishay General Semiconductor - Diodes Division SMBG64AHE3/5B
- Part No.:
- SMBG64AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG64AHE3/5B.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,164
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Product details
Overview
SMBG64AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features 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 - used in automotive power supply input stages and industrial sensor interfaces.
For engineers reviewing the SMBG64AHE3/5B datasheet, SMBG64AHE3/5B pinout, SMBG64AHE3/5B application, or SMBG64AHE3/5B equivalent, key selection criteria include clamping performance under 5.8 A surge, AEC-Q101 qualification for automotive use, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 64 V and rapidly avalanches above ~71.1 V to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for protecting MOSFET gates and microcontroller I/O pins.
Thermal design relies on low RθJA = 100 °C/W (on 5.0 mm × 5.0 mm pads) and RθJL = 20 °C/W, enabling reliable operation up to TJ = 150 °C. The device meets MSL Level 1 (260 °C peak reflow) and supports repetitive surges at 0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - guaranteed avalanche onset range for predictable protection threshold |
| VC @ IPPM | 103 V at 5.8 A - maximum voltage seen by protected circuit during 10/1000 µs transient |
| PPPM | 600 W - peak surge power handling capability per single 10/1000 µs pulse |
| IFSM | 100 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault-current limiting |
| TJ max | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode (unbanded end) | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Combination Wave surges without derating |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics applications requiring long-term reliability under thermal stress |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across -55 °C to +150 °C operating range |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| RoHS-compliant HE3 suffix | Meets industrial and automotive environmental compliance requirements with matte tin terminations |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load-dump transients up to 35 V and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp spikes before they reach LDOs or MCU power pins. Use Value: Limits voltage to ≤103 V during 5.8 A surge, preventing damage to 36 V-rated input capacitors and 5 V regulators downstream. | Use Scenario: 4–20 mA current-loop sensors in factory automation subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional-capable but used unidirectionally across sensor output and local ground to suppress common-mode transients. Use Value: Clamps fast-rising edges (<1 ns response) while adding <10 pF capacitance at 0 V bias - no signal integrity impact on 1 kHz analog loops. |
| DC Motor Drive Gate Protection | Telecom Power Supply Surge Suppression |
Use Scenario: H-bridge MOSFET gate drivers subjected to shoot-through-induced voltage spikes during PWM commutation. IC Role / Device Role / Timing Role: TVS placed between gate and source of high-side N-channel MOSFET to clamp Miller-induced overshoot. Use Value: Withstands 100 A non-repetitive forward surge (IFSM), absorbing energy from parasitic inductance without latch-up or parametric shift. | Use Scenario: Secondary-side 48 V telecom rectifier outputs exposed to lightning-induced surges on PoE or remote powering lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC output bus before point-of-load converters. Use Value: Delivers 600 W pulse power handling with 103 V clamping - maintains safe margin below 100 V-rated electrolytic capacitor ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG64AE3/5B | Same electrical specs, but base P/N-E3 lacks AEC-Q101 qualification and uses industrial-grade molding compound | Not suitable for automotive Tier-1 designs requiring AEC-Q101; acceptable for commercial industrial power supplies | Select SMBG64AE3/5B only if AEC-Q101 is not required and cost optimization is prioritized |
| SMAJ64AHE3/A | Same VWM/VC, but SMA package (DO-214AC) has higher RθJA = 140 °C/W and lower IPPM = 5.2 A | Lower surge current capacity limits use in high-energy transients; less thermally robust on same PCB pad size | Choose SMAJ64AHE3/A only when board space constraints prohibit SMBG footprint or when lower surge levels are expected |
Compared with SMBG64AE3/5B and SMAJ64AHE3/A, the SMBG64AHE3/5B uniquely combines AEC-Q101 qualification, 600 W pulse rating, and optimized thermal resistance in the SMBG package - making it the preferred choice for automotive and high-reliability industrial power rail protection where both surge margin and qualification compliance are mandatory.
Availability
SMBG64AHE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power supply designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG64AHE3/5B 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 and application-specific performance.
The SMBG TRANSZORB® series was engineered for high-energy transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial, and telecom systems needing AEC-Q101-qualified, surface-mount TVS solutions with repeatable clamping behavior.
FAQ
What is the clamping voltage of SMBG64AHE3/5B at its rated peak pulse current?
The SMBG64AHE3/5B has a maximum clamping voltage (VC) of 103 V at 5.8 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value defines the highest voltage the protected circuit will experience during a standardized surge event, and it is measured with the device mounted on 5.0 mm × 5.0 mm copper pads per Vishay's test setup. The SMBG64AHE3/5B maintains this clamping performance across its qualified temperature range.
Is SMBG64AHE3/5B suitable for automotive applications?
Yes, the SMBG64AHE3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including engine control modules, body electronics, and infotainment power supplies. Its construction includes glass-passivated junction, matte tin terminations compliant with J-STD-002, and MSL Level 1 reflow compatibility - all verified per AEC-Q101 stress test requirements. The SMBG64AHE3/5B datasheet confirms qualification status in the mechanical data section.
What does the "HE3" suffix indicate in SMBG64AHE3/5B?
The "HE3" suffix in SMBG64AHE3/5B denotes RoHS-compliant construction with AEC-Q101 qualification and industrial-grade molding compound. Specifically, "H" indicates AEC-Q101 qualification, "E3" signifies RoHS compliance and matte tin plating, distinguishing it from "E3"-only (non-AEC-Q101) or "HM3" (halogen-free + AEC-Q101) variants. This suffix directly maps to Vishay's ordering nomenclature in Document Number 88456.
How does SMBG64AHE3/5B differ from bidirectional versions like SMBG64CA?
The SMBG64AHE3/5B is unidirectional, meaning it conducts only in reverse bias above VBR, with polarity marked by a cathode band. In contrast, SMBG64CA is bidirectional and symmetrical - conducting in both directions with identical VBR and VC characteristics. The SMBG64AHE3/5B is selected for DC rail protection where polarity is fixed; SMBG64CA would be used for AC-coupled or differential signal lines requiring symmetric clamping.
What is the maximum operating temperature for SMBG64AHE3/5B?
The SMBG64AHE3/5B has a specified operating junction temperature range of -55 °C to +150 °C, with storage temperature matching this span. This allows deployment in under-hood automotive environments and industrial enclosures without forced cooling. Derating of peak pulse power begins above 25 °C ambient, per Figure 2 in the Vishay datasheet 88456, and the SMBG64AHE3/5B maintains full specification compliance within this thermal envelope.
SMBG64AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG64AHE3/5B FAQ
1.How can I place an order for SMBG64AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG64AHE3/5B 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 SMBG64AHE3/5B reliable?
The price and inventory of SMBG64AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG64AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG64AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG64AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG64AHE3/5B?
SMBG64AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG64AHE3/5B 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 SMBG64AHE3/5B?
For technical support, including SMBG64AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG64AHE3/5B requirements.
6.How does Aetrix verify that SMBG64AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG64AHE3/5B 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 SMBG64AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG64AHE3/5B?
All SMBG64AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG64AHE3/5B, 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 SMBG64AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG64AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG64AHE3/5B Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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