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Vishay General Semiconductor - Diodes Division SMBJ6.5CAHE3/52
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- Part No.:
- SMBJ6.5CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CAHE3/52.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,566
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Product details
Overview
SMBJ6.5CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤11.2 V at 53.6 A peak surge current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBJ6.5CAHE3/52 datasheet, SMBJ6.5CAHE3/52 pinout, SMBJ6.5CAHE3/52 application, or SMBJ6.5CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping voltage under 53.6 A surge, RoHS-compliant HE3 suffix, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both directions, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while the SMB package supports high thermal dissipation via PCB copper pads.
Rated for -55 °C to +150 °C operating junction temperature and qualified to AEC-Q101, SMBJ6.5CAHE3/52 meets automotive reliability requirements. It 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 - critical for stable clamping across thermal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - guaranteed avalanche onset range; ensures predictable turn-on during transients. |
| VC @ IPPM | ≤11.2 V at 53.6 A - clamping voltage under full-rated surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W (10/1000 µs) - peak transient energy handling capacity; supports robust protection against lightning and inductive spikes. |
| ID @ VWM | ≤500 µA - reverse leakage at stand-off voltage; low enough to avoid interference in high-impedance signal paths. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive and industrial environments. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 2.20 mm × 3.94 mm footprint and 1.52 mm height; compatible with J-STD-020 MSL Level 1 reflow. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals function as interchangeable anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as input/output path for transient current; no fixed polarity - enables flexible PCB layout. |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completes symmetrical clamping path; current flows bidirectionally through same junction structure. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces - supports long-term reliability under thermal cycling and vibration. |
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without degradation when mounted on 0.2" × 0.2" copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on downstream ICs - e.g., clamps 53.6 A surge to ≤11.2 V while VBR starts at 7.22 V. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C) without baking - reduces manufacturing overhead. |
| RoHS-compliant HE3 suffix | Meets EU RoHS Directive 2011/65/EU and JESD201 Class 2 whisker resistance - suitable for commercial and automotive supply chains. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus and LIN transceivers from load dump and ESD events in vehicle cabin modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal lines upstream of transceiver inputs. Use Value: Limits transient voltage to ≤11.2 V during 53.6 A surges, preserving signal integrity and preventing latch-up in 3.3 V/5 V transceivers. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to shunt inductive kickback from solenoid/relay coils. Use Value: Clamps 600 W transients within nanoseconds, maintaining <500 µA leakage at 24 V nominal to avoid false triggering. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters exposed to mains-borne transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between DC output and ground to absorb switching noise and surge coupling. Use Value: Withstands repetitive 10/1000 µs pulses up to 600 W while holding leakage below 500 µA at 6.5 V - avoids standby power loss. |
Use Scenario: Protecting Ethernet PHY interface pins (e.g., RJ45 magnetics secondary side) from ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp across differential pairs to preserve signal rise/fall times. Use Value: Delivers sub-11.2 V clamping at 53.6 A without adding significant parasitic capacitance - maintains 100BASE-TX signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA-M3/52 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free compliance is mandated by OEM or regional regulation. | Choose SMBJ6.5CA-M3/52 when halogen-free materials are required; otherwise SMBJ6.5CAHE3/52 offers standard RoHS compliance with broader supply chain availability. |
| SMCJ6.5CAHE3/52 | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; 1500 W PPPM rating vs. 600 W. | Higher power handling suits higher-energy threat environments (e.g., 48 V battery systems), but requires larger PCB area. | Choose SMCJ6.5CAHE3/52 only if 1500 W surge capability is needed and board space permits the larger SMC footprint. |
Compared with SMBJ6.5CA-M3/52, SMBJ6.5CAHE3/52 provides identical protection performance with standard RoHS compliance; versus SMCJ6.5CAHE3/52, it trades 600 W capability and compact SMB size for lower cost and denser layout - optimal for space-constrained 12 V automotive and industrial nodes.
Availability
SMBJ6.5CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant procurement.
Supply support for SMBJ6.5CAHE3/52 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, efficiency, and application-specific optimization.
SMBJ6.5CAHE3/52 belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in automotive, industrial, and communications systems where fast response, low clamping, and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMBJ6.5CAHE3/52 at its rated peak pulse current?
The SMBJ6.5CAHE3/52 clamps to a maximum of 11.2 V at its rated peak pulse current of 53.6 A (10/1000 µs waveform). This value is measured under standard test conditions with 0.2" × 0.2" copper pads per terminal and represents the upper limit of voltage seen by protected circuitry during worst-case surge events. The SMBJ6.5CAHE3/52 achieves this with a low clamping ratio of approximately 1.4 relative to its minimum breakdown voltage.
Is SMBJ6.5CAHE3/52 suitable for automotive applications?
Yes, SMBJ6.5CAHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS compliance and automotive-grade reliability testing. It operates from -55 °C to +150 °C and meets MSL Level 1 for reflow, making it appropriate for engine control units, body electronics, and ADAS sensor modules. The SMBJ6.5CAHE3/52 is referenced in Vishay's automotive ordering guidance and used in production designs meeting ISO 7637-2 immunity requirements.
How does SMBJ6.5CAHE3/52 differ from unidirectional variants like SMBJ6.5AHE3/52?
SMBJ6.5CAHE3/52 is bidirectional, meaning it clamps voltage transients of either polarity symmetrically across its terminals, with no cathode band marking. In contrast, SMBJ6.5AHE3/52 is unidirectional, featuring a cathode band and conducting only in reverse bias - requiring correct orientation during placement. Both share identical VWM (6.5 V), VBR (7.22–7.98 V), and PPPM (600 W), but SMBJ6.5CAHE3/52 is selected for AC-coupled or differential signal lines where polarity is undefined or alternating.
What is the maximum reverse leakage current for SMBJ6.5CAHE3/52 at its stand-off voltage?
The maximum reverse leakage current (ID) for SMBJ6.5CAHE3/52 is 500 µA at its 6.5 V stand-off voltage (VWM) and 25 °C ambient temperature. This low leakage ensures minimal impact on high-impedance circuits such as sensor bias networks or analog front-ends. The SMBJ6.5CAHE3/52 maintains this specification across its full operating temperature range, with leakage increasing predictably per junction temperature per Vishay's derating curves.
Can SMBJ6.5CAHE3/52 be used in place of SMBJ6.0CAHE3/52 or SMBJ7.0CAHE3/52?
SMBJ6.5CAHE3/52 is not a direct replacement for SMBJ6.0CAHE3/52 or SMBJ7.0CAHE3/52 due to differences in stand-off voltage (VWM = 6.5 V vs. 6.0 V or 7.0 V) and corresponding breakdown ranges - which affect clamping onset timing and margin relative to system operating voltage. While all three share the same SMB package and 600 W rating, substituting SMBJ6.5CAHE3/52 requires verifying that 6.5 V VWM provides adequate headroom above the protected line's maximum normal voltage without premature conduction. The SMBJ6.5CAHE3/52 must be selected based on precise system voltage thresholds, not interchangeably.
SMBJ6.5CAHE3/52 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ6.5CAHE3/52 FAQ
1.How can I place an order for SMBJ6.5CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CAHE3/52 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 SMBJ6.5CAHE3/52 reliable?
The price and inventory of SMBJ6.5CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CAHE3/52?
SMBJ6.5CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CAHE3/52 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 SMBJ6.5CAHE3/52?
For technical support, including SMBJ6.5CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ6.5CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CAHE3/52 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 SMBJ6.5CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CAHE3/52?
All SMBJ6.5CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CAHE3/52, 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 SMBJ6.5CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ6.5CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CAHE3/52 Tags
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