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Vishay General Semiconductor - Diodes Division SMBJ6.5C-E3/52
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- Part No.:
- SMBJ6.5C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5C-E3/52.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,907
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Product details
Overview
SMBJ6.5C-E3/52 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 ESD, lightning-induced surges, and inductive switching transients. 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.
For engineers reviewing the SMBJ6.5C-E3/52 datasheet, SMBJ6.5C-E3/52 pinout, SMBJ6.5C-E3/52 application, or SMBJ6.5C-E3/52 equivalent, key selection criteria include clamping performance under 53.6 A surge, thermal resistance (RθJA = 100 °C/W), unidirectional polarity with cathode band marking, RoHS-compliant matte tin plating, and suitability for automated SMT placement on consumer, industrial, and telecom PCBs.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 6.5 V, it avalanches to limit transient energy across protected lines. Its glass-passivated junction ensures stable breakdown and low leakage (<500 µA at VWM), while MSL Level 1 rating confirms compatibility with standard reflow profiles up to 260 °C peak.
The device delivers 600 W peak pulse power per 10/1000 µs waveform with 0.01 % duty cycle, and exhibits 0.061 %/°C temperature coefficient of VBR. Its 20 °C/W junction-to-lead thermal resistance supports localized heat dissipation during repetitive surge events without requiring external heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins; defines circuit's normal signal swing margin. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Confirmed avalanche onset range; ensures reliable triggering above VWM with process tolerance. |
| VC @ IPPM | 11.2 V at 53.6 A - Clamped voltage during full-rated 600 W transient; determines maximum stress on downstream ICs. |
| IPPM | 53.6 A - Peak surge current capability with 10/1000 µs waveform; validates protection level against IEC 61000-4-5 Level 4 surges. |
| PPPM | 600 W - Peak pulse power handling; enables robust protection of 3.3 V/5 V logic, MOSFET gates, and sensor interfaces. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in automotive under-hood and industrial ambient environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on 5.0 mm × 5.0 mm copper pads; informs board layout thermal design. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (unidirectional) | Connected to lower-potential side of protected line; carries forward current during fault conditions. |
| Cathode | Reverse-biased clamping terminal | Marked with band; connected to higher-potential side (e.g., VCC, signal line); conducts avalanche current during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against high-energy transients without cascaded staging. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without pre-baking or special handling requirements. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for CMOS inputs. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets global environmental compliance mandates without halogen restrictions or automotive qualification overhead. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensors in BLDC motor inverters exposed to inductive kickback from relay coils and solenoids. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed across MOSFET gate-source or op-amp input pins to absorb <100 ns rise-time transients. Use Value: Limits gate voltage to ≤11.2 V during 53.6 A surges, preventing oxide breakdown in 30 V-rated logic-level MOSFETs. |
Use Scenario: ESD and load-dump suppression on LIN bus transceivers and door module microcontrollers in 12 V vehicle networks. IC Role / Device Role / Timing Role: Standoff-clamp TVS mounted directly at connector entry point to divert >30 kV HBM ESD and ISO 7637-2 Pulse 5a surges. Use Value: Maintains 6.5 V signal integrity during normal operation while clamping 12 V load-dump spikes to safe levels for 5 V MCU I/O. |
| Consumer Power Adapters | Telecom Interface Protection |
|
Use Scenario: Secondary-side overvoltage protection in USB-C PD adapters and wireless charging controllers subjected to capacitor discharge events. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS across DC output rails to prevent latch-up in synchronous rectifier controllers. Use Value: Responds in <1 ps to clamp 600 W transients, limiting output rail excursion to 11.2 V and preserving ±5 % regulation window. |
Use Scenario: Surge hardening of RS-485 transceiver data lines in base station remote radio units exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional device used in back-to-back configuration on differential pairs to meet ITU-T K.21 Basic Level. Use Value: Delivers 11.2 V clamping at 53.6 A per line, enabling compliance with 4 kV/2 kA surge immunity without adding series impedance. |
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 | Same VWM, VBR, VC, and PPPM; identical SMB package and RoHS compliance. | No functional difference; "A" and "C" suffixes denote same electrical spec per Vishay documentation (both unidirectional). | Select SMBJ6.5A-E3/52 if legacy BOM references "A" suffix; no design change required. |
| SMAJ6.5A-E3/52 | Lower PPPM = 400 W, higher VC = 11.1 V at 35.3 A, SMA (DO-214AC) package with smaller footprint and higher RθJA. | Reduced surge margin; suitable only for lower-energy threats or space-constrained layouts where 600 W headroom is not required. | Choose SMAJ6.5A-E3/52 only when board area is critical and peak surge current remains below 35.3 A. |
Compared with SMBJ6.5C-E3/52, SMBJ6.5A-E3/52 offers identical protection performance in the same package, while SMAJ6.5A-E3/52 trades 33 % peak power capacity and thermal robustness for 30 % smaller PCB area-making SMBJ6.5C-E3/52 optimal for high-reliability industrial and automotive surge zones.
Availability
SMBJ6.5C-E3/52 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, consumer power adapters, and telecom interface protection requiring stable component supply and full-specification compliance.
Supply support for SMBJ6.5C-E3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting design-in across automotive, industrial, and communications infrastructure where robustness against ESD, lightning, and inductive switching is mandatory.
FAQ
What is the clamping voltage of SMBJ6.5C-E3/52 at its rated peak pulse current?
The SMBJ6.5C-E3/52 has a maximum clamping voltage (VC) of 11.2 V at its rated peak pulse current (IPPM) of 53.6 A, measured using the standardized 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is confirmed in Vishay's Document Number 88392, page 2.
Is SMBJ6.5C-E3/52 RoHS-compliant and suitable for lead-free reflow?
Yes, SMBJ6.5C-E3/52 is RoHS-compliant (per EU Directive 2011/65/EU) and qualified to MSL Level 1 with a maximum peak reflow temperature of 260 °C, making it fully compatible with standard lead-free soldering processes without pre-baking. The "E3" suffix explicitly denotes commercial-grade RoHS compliance, and matte tin plating meets J-STD-002 solderability requirements.
How does the breakdown voltage range of SMBJ6.5C-E3/52 compare to its stand-off voltage?
The SMBJ6.5C-E3/52 has a minimum breakdown voltage (VBR) of 7.22 V and maximum of 7.98 V at 10 mA test current, which sits 11–23 % above its 6.5 V stand-off voltage (VWM). This guaranteed margin prevents false triggering during normal operation while ensuring rapid, repeatable avalanche conduction once transients exceed VWM, as verified in the Electrical Characteristics table on page 2 of Vishay's 88392 datasheet.
Can SMBJ6.5C-E3/52 be used in bidirectional protection circuits?
No, SMBJ6.5C-E3/52 is a unidirectional TVS diode, identified by its cathode band marking and specified parameters (VWM, VBR, VC) for reverse-biased operation only. For bidirectional applications, Vishay specifies the "CA" suffix (e.g., SMBJ6.5CA), which provides symmetrical clamping in both polarities and is explicitly listed in the "DEVICES FOR BIDIRECTION APPLICATIONS" section of the datasheet.
What is the thermal resistance and maximum junction temperature of SMBJ6.5C-E3/52?
The SMBJ6.5C-E3/52 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, and a maximum operating junction temperature (TJ) of +150 °C. These values are specified in the Thermal Characteristics table (page 3) and Maximum Ratings table (page 1) of Vishay Document Number 88392, confirming suitability for high-ambient industrial deployments.
SMBJ6.5C-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 48.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ6.5C-E3/52 FAQ
1.How can I place an order for SMBJ6.5C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5C-E3/52 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 SMBJ6.5C-E3/52 reliable?
The price and inventory of SMBJ6.5C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ6.5C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5C-E3/52?
SMBJ6.5C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5C-E3/52 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 SMBJ6.5C-E3/52?
For technical support, including SMBJ6.5C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5C-E3/52 requirements.
6.How does Aetrix verify that SMBJ6.5C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5C-E3/52 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 SMBJ6.5C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ6.5C-E3/52?
All SMBJ6.5C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5C-E3/52, 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 SMBJ6.5C-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ6.5C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5C-E3/52 Tags
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