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Vishay General Semiconductor - Diodes Division SMBJ6.5CAHM3/H
- Part No.:
- SMBJ6.5CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CAHM3/H.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,958
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Product details
Overview
SMBJ6.5CAHM3/H 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 or 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 - used in sensor interface protection for industrial control systems.
For engineers reviewing the SMBJ6.5CAHM3/H datasheet, SMBJ6.5CAHM3/H pinout, SMBJ6.5CAHM3/H application, or SMBJ6.5CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), low clamping voltage under 53.6 A surge, 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 bidirectional conduction - no polarity marking required. Its glass-passivated junction enables fast response (<1 ns) and stable breakdown characteristics across -55 °C to +150 °C operating range.
The SMBJ6.5CAHM3/H delivers 600 W transient suppression per 10/1000 µs waveform with 0.01% duty cycle, and exhibits 0.061 %/°C temperature coefficient of VBR, ensuring predictable clamping behavior over temperature in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - verified breakdown threshold range ensures reliable triggering across production lot |
| VC @ IPPM | ≤11.2 V at 53.6 A - clamping voltage during 600 W transient; protects downstream ICs rated for ≤12 V absolute max |
| PPPM | 600 W - peak pulse power handling per 10/1000 µs waveform; supports repetitive surge events at 0.01% duty cycle |
| IPPM | 53.6 A - maximum non-repetitive peak pulse current; determines minimum trace width and PCB pad design |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial settings |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no cathode/anode marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no polarity dependency in circuit layout |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; device functions identically regardless of orientation on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per JESD22 |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for Tier 1 automotive and industrial OEMs with full material declaration |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) when mounted on recommended 5.0 mm × 5.0 mm copper pads |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity limitations or baking requirements |
Applications
| Industrial Sensor Interface | Automotive CAN Bus Protection |
|---|---|
|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) from ESD and load dump-induced transients in factory automation PLC modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal and ground, clamping both positive and negative transients before they reach ADC input or op-amp buffer. Use Value: Maintains signal integrity by limiting excursion to ≤11.2 V during 53.6 A surge, preventing latch-up or damage to 12 V-tolerant signal conditioning ICs. |
Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ISO 7637-2 pulse 1, 2a, and 5a transients in body control modules. IC Role / Device Role / Timing Role: One SMBJ6.5CAHM3/H per line (CAN_H-to-GND and CAN_L-to-GND), leveraging bidirectional symmetry for common-mode surge suppression. Use Value: Clamps transients within nanoseconds while preserving CAN signal rise/fall times due to low junction capacitance (<100 pF at 0 V), avoiding bit error rate degradation. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
|
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines after integrated TPD circuitry, guarding against contact discharge up to ±15 kV (IEC 61000-4-2). IC Role / Device Role / Timing Role: Fast-response TVS placed between data line and chassis ground, absorbing ESD energy before it reaches USB transceiver PHY. Use Value: Sub-1 ns response time and 11.2 V clamping ensure transceiver I/O remains within safe operating area during human-body-model discharges. |
Use Scenario: Primary surge protection on POTS/DSL line interface circuits exposed to lightning-induced surges per ITU-T K.20/K.21. IC Role / Device Role / Timing Role: Bidirectional TVS installed between tip/ring and ground in line card front-end, shunting induced common-mode energy. Use Value: 600 W rating and 53.6 A peak current capacity enable survival of 10/700 µs telecom surges up to 1 kV without degradation or failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CAHE3/H | Same electrical specs, but RoHS-compliant commercial grade (E3) - not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Select SMBJ6.5CAHE3/H for cost-sensitive non-automotive applications requiring identical clamping performance |
| SMAJ6.5CAHM3 | Lower 400 W peak pulse power; SMA package (smaller footprint, higher thermal resistance) | Reduced surge handling limits use to lower-energy transients; less robust thermal dissipation than SMB | Choose SMAJ6.5CAHM3 only if board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only |
Compared with SMBJ6.5CAHE3/H, the SMBJ6.5CAHM3/H adds AEC-Q101 qualification and halogen-free construction; compared with SMAJ6.5CAHM3, it provides 50% higher surge power rating and superior thermal performance via larger SMB package.
Availability
SMBJ6.5CAHM3/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus nodes, consumer USB ports, and telecom DSL line cards requiring stable component supply with automotive-grade reliability and halogen-free compliance.
Supply support for SMBJ6.5CAHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMBJ series targets high-energy transient suppression in harsh environments; the HM3 variant specifically addresses automotive and industrial markets requiring AEC-Q101 qualification and halogen-free materials.
FAQ
What is the clamping voltage of SMBJ6.5CAHM3/H at its rated peak pulse current?
The SMBJ6.5CAHM3/H 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 standardized test conditions with devices mounted on 0.2" × 0.2" copper pads and represents the upper limit of voltage seen by protected circuitry during worst-case surge events. The SMBJ6.5CAHM3/H maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ6.5CAHM3/H suitable for automotive applications?
Yes, SMBJ6.5CAHM3/H is AEC-Q101 qualified and explicitly designated for automotive use via the HM3 suffix. It undergoes stress testing including high-temperature reverse bias, temperature cycling, and ESD per JESD22 standards. The SMBJ6.5CAHM3/H is commonly deployed in body control modules, infotainment interfaces, and sensor hubs where bidirectional transient suppression and long-term reliability under thermal cycling are required.
How does the HM3 suffix differ from the HE3 suffix in SMBJ6.5CA part numbering?
The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, whereas HE3 indicates RoHS-compliant and AEC-Q101-qualified but not halogen-free. Both meet automotive reliability requirements, but SMBJ6.5CAHM3/H satisfies additional environmental mandates for halogen-free materials in Tier 1 supply chains. The SMBJ6.5CAHM3/H uses molding compounds and plating processes certified to IEC 61249-2-21.
What is the thermal resistance of SMBJ6.5CAHM3/H from junction to ambient?
The typical thermal resistance from junction to ambient (RθJA) for SMBJ6.5CAHM3/H is 100 °C/W when mounted on the minimum recommended pad layout (0.2" × 0.2" copper pads per terminal). This value assumes still air conditions and directly impacts steady-state power dissipation capability - for example, at 5.0 W rated power, junction temperature rise above ambient is approximately 500 °C, confirming that SMBJ6.5CAHM3/H is intended for transient, not continuous, power dissipation.
Does SMBJ6.5CAHM3/H require orientation during PCB placement?
No, SMBJ6.5CAHM3/H is a bidirectional TVS diode and has no polarity marking or functional orientation requirement. Unlike unidirectional variants (e.g., SMBJ6.5A), the SMBJ6.5CAHM3/H conducts symmetrically in both directions, so either terminal may connect to signal or ground without affecting clamping behavior. This simplifies layout, eliminates assembly errors, and supports automated placement without vision-based orientation verification.
SMBJ6.5CAHM3/H 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:
- 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)
SMBJ6.5CAHM3/H FAQ
1.How can I place an order for SMBJ6.5CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CAHM3/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 SMBJ6.5CAHM3/H reliable?
The price and inventory of SMBJ6.5CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CAHM3/H?
SMBJ6.5CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CAHM3/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 SMBJ6.5CAHM3/H?
For technical support, including SMBJ6.5CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CAHM3/H requirements.
6.How does Aetrix verify that SMBJ6.5CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CAHM3/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 SMBJ6.5CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CAHM3/H?
All SMBJ6.5CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CAHM3/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 SMBJ6.5CAHM3/H part is unused and in its original packaging.
Return procedure for SMBJ6.5CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CAHM3/H Tags
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