My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ6.5CA-M3/52
;;2.jpg)
- Part No.:
- SMBJ6.5CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CA-M3/52.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,557
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ6.5CA-M3/52 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, 11.2 V maximum clamping voltage (VC) at 53.6 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ6.5CA-M3/52 datasheet, SMBJ6.5CA-M3/52 pinout, SMBJ6.5CA-M3/52 application, or SMBJ6.5CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.55), halogen-free RoHS-compliant construction (M3 suffix), and compatibility with automated SMT placement on PCBs requiring robust ESD and surge immunity per IEC 61000-4-2/4-5.
Technical Context
This device operates as a voltage-clamping protector: under normal conditions it presents high impedance (>1 MΩ leakage at VWM), but switches to low-impedance conduction within <1 ns when transient voltage exceeds VBR. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity constraints.
The SMBJ6.5CA-M3/52 uses a glass-passivated silicon junction, achieves 0.061 %/°C temperature coefficient of VBR, and is rated for -55 °C to +150 °C operating junction temperature. It meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 only in HE3/HM3 variants - not applicable to the M3/52 commercial-grade version.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse working voltage before clamping initiates; sets upper limit for safe DC/AC signal operation. |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - guaranteed breakdown range defining turn-on threshold; ensures consistent clamping onset across production lots. |
| VC @ IPPM | 11.2 V at 53.6 A - clamped voltage during 600 W transient; determines worst-case overvoltage seen by protected circuitry. |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform; defines survivability against lightning-induced surges (IEC 61000-4-5 Level 3). |
| ID @ VWM | 500 µA max - reverse leakage at stand-off voltage; low value minimizes standby power loss and avoids false triggering. |
| TJ max | +150 °C - maximum junction temperature; supports operation in high-ambient environments like industrial motor drives or outdoor telecom enclosures. |
| Package | SMB (DO-214AA) - standardized 2-pin surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with IPC-7351B land pattern. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction - enables AC line or differential pair protection. |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; device conducts equally in both directions above VBR - eliminates need for orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, RS-485 buses, or transformer-coupled interfaces without external polarity management. |
| 600 W peak pulse power | Withstands 10/1000 µs surges up to 53.6 A - meets IEC 61000-4-5 Level 3 (1 kV line-to-ground, 2 kV line-to-line) without degradation. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for consumer, industrial, and telecom products targeting EU, China, and Japan markets. |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage stress on downstream components - critical for protecting 3.3 V or 5 V logic interfaces with tight voltage margins. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life before reflow; eliminates baking requirement and simplifies SMT manufacturing flow. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protecting gate drivers and feedback signal lines in variable-frequency drives exposed to inductive switching noise and load dump transients. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across MOSFET gate-source or op-amp inputs to suppress >100 V spikes within nanoseconds. Use Value: Prevents latch-up or permanent damage to 5 V analog front-ends while maintaining signal integrity under repetitive 600 W surge events. |
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules from battery transients and ESD. IC Role / Device Role / Timing Role: Bidirectional transient suppressor installed at connector entry point to shunt ±15 kV ESD (IEC 61000-4-2) and 100 V load dump energy. Use Value: Ensures uninterrupted sensor data transmission during automotive qualification testing without requiring additional series impedance or filtering. |
| Telecom Power Feeds | Consumer USB-C Port Protection |
|
Use Scenario: Safeguarding PoE (Power over Ethernet) injectors and splitters against induced surges on 48 V DC power pairs. IC Role / Device Role / Timing Role: Standoff-rated TVS connected line-to-line to clamp common-mode transients exceeding 6.5 V while passing steady-state 48 V. Use Value: Maintains IEEE 802.3af/at compliance by limiting let-through voltage to <12 V during 10/1000 µs surges - below IC overvoltage thresholds. |
Use Scenario: Protecting USB-C CC and VBUS lines in portable chargers and docks against hot-plug ESD and cable-induced ringing. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at port connector to clamp ±8 kV contact discharge before reaching USB controller. Use Value: Achieves <0.5 pF typical junction capacitance (per Vishay curve Fig. 4 at 0 V), preserving USB 2.0 signal integrity without bandwidth reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA-E3/52 | Same electrical specs, but RoHS-compliant with tin-lead-free plating (E3 suffix); no halogen-free certification. | Acceptable where halogen content is unrestricted (e.g., non-EU commercial gear); slightly higher whisker risk per JESD 201 Class 2. | Select E3/52 for cost-sensitive designs where halogen-free compliance is not mandated by end-market regulations. |
| SMAJ6.5CA-M3 | Lower PPPM (400 W vs. 600 W); same VWM/VBR/VC but smaller SMA package (DO-214AC) with higher thermal resistance (RθJA = 140 °C/W). | Not suitable for high-energy surge environments (e.g., industrial mains-connected systems); limited to low-power signal lines. | Choose SMAJ6.5CA-M3 only when board space is constrained and surge threat level is ≤ Level 2 (400 W) per IEC 61000-4-5. |
Compared with SMBJ6.5CA-E3/52, the M3/52 offers halogen-free assurance for export compliance; versus SMAJ6.5CA-M3, it delivers 50 % higher surge power handling and lower thermal impedance - critical for sustained reliability in high-temperature industrial deployments.
Availability
SMBJ6.5CA-M3/52 is available at Aetrix Electronics and suitable for industrial motor control, telecom power feeds, and automotive sensor interface applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ6.5CA-M3/52 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, and protection devices with emphasis on reliability, power efficiency, and application-specific performance.
The SMBJ series was engineered for high-energy transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where failure tolerance and surge margin are mission-critical.
FAQ
What is the clamping voltage of SMBJ6.5CA-M3/52 at its rated peak pulse current?
The SMBJ6.5CA-M3/52 has a maximum clamping voltage (VC) of 11.2 V when subjected to its peak pulse current (IPPM) of 53.6 A using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees the upper voltage limit imposed on protected circuits during surge events - essential for validating compatibility with 3.3 V or 5 V ICs downstream of SMBJ6.5CA-M3/52.
Is SMBJ6.5CA-M3/52 suitable for automotive applications requiring AEC-Q101 qualification?
No, SMBJ6.5CA-M3/52 is a commercial-grade part with halogen-free RoHS compliance (M3 suffix) but lacks AEC-Q101 qualification. For automotive use, select the HM3 variant (e.g., SMBJ6.5CAHM3_B/I), which carries the AEC-Q101 qualification and extended temperature validation - SMBJ6.5CA-M3/52 itself is rated only for -55 °C to +150 °C operation without automotive stress testing.
How does the bidirectional design of SMBJ6.5CA-M3/52 affect PCB layout compared to unidirectional TVS diodes?
The bidirectional design of SMBJ6.5CA-M3/52 eliminates polarity marking and orientation dependency - both terminals are functionally identical, allowing placement without regard to anode/cathode direction. This simplifies PCB layout, reduces assembly errors, and enables symmetric protection of differential pairs (e.g., RS-485, CAN) without adding discrete series components - unlike unidirectional SMBJ6.5A-M3/52, which requires correct band alignment.
What is the maximum reverse leakage current specified for SMBJ6.5CA-M3/52 at its stand-off voltage?
The SMBJ6.5CA-M3/52 specifies a maximum reverse leakage current (ID) of 500 µA at its 6.5 V stand-off voltage (VWM) and 25 °C ambient temperature. This low leakage ensures minimal power drain in always-on systems and prevents false triggering in high-impedance sensing nodes - a key parameter verified per test condition in Vishay's Electrical Characteristics table on page 2 of document 88392.
Can SMBJ6.5CA-M3/52 be used in parallel to increase surge current handling?
No, SMBJ6.5CA-M3/52 should not be paralleled for increased IPPM due to inherent VBR mismatch between units - even within the same reel - causing uneven current sharing and potential thermal runaway. Surge rating must be met by a single device or through system-level redundancy (e.g., staged protection with upstream fuse); Vishay does not characterize or guarantee parallel operation of SMBJ6.5CA-M3/52.
SMBJ6.5CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ6.5CA-M3/52 FAQ
1.How can I place an order for SMBJ6.5CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CA-M3/52 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 SMBJ6.5CA-M3/52 reliable?
The price and inventory of SMBJ6.5CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CA-M3/52?
SMBJ6.5CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CA-M3/52 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 SMBJ6.5CA-M3/52?
For technical support, including SMBJ6.5CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ6.5CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CA-M3/52 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 SMBJ6.5CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CA-M3/52?
All SMBJ6.5CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CA-M3/52, 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 SMBJ6.5CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ6.5CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CA-M3/52 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 …
