My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG6.5CA-M3/5B
- Part No.:
- SMBG6.5CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5CA-M3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,296
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG6.5CA-M3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 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 - used to protect automotive sensor interfaces, industrial I/O ports, and USB data lines.
For engineers reviewing the SMBG6.5CA-M3/5B datasheet, SMBG6.5CA-M3/5B pinout, SMBG6.5CA-M3/5B application, or SMBG6.5CA-M3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low VC/VBR ratio (≤1.55), AEC-Q101 qualification, halogen-free M3 suffix compliance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR, VC, and leakage characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low dynamic impedance under surge conditions.
The device meets J-STD-020 MSL Level 1 (260 °C peak reflow), supports 0.01 % duty cycle repetitive surges, and delivers 11.2 V clamping at 53.6 A - enabling robust protection of 3.3 V and 5 V logic interfaces without latch-up risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins; matches 5 V system rails with margin |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - tight 10.5 % tolerance ensures predictable turn-on across temperature and production lot |
| VC @ IPPM | 11.2 V at 53.6 A - low clamping voltage limits stress on downstream ICs during 600 W transient events |
| PPPM | 600 W - peak pulse power handling per 10/1000 μs waveform; sufficient for ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 |
| IPPM | 53.6 A - peak surge current capability derived from VC and PPPM; enables protection of medium-energy transients |
| TJ max | +150 °C - extended junction temperature rating supports under-hood automotive and industrial ambient environments |
| Leakage @ VWM | <500 μA - low reverse leakage preserves signal integrity and battery life in always-on circuits |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing leads, halogen-free, RoHS-compliant, AEC-Q101 qualified. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad layout recommended per datasheet fig. 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A (bidirectional) | One side of symmetrical PN junction; no polarity marking; connects to protected line |
| Cathode | Terminal B (bidirectional) | Other side of symmetrical PN junction; no polarity marking; connects to protected line |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and leakage in both directions - eliminates need for polarity-aware layout in AC-coupled or differential lines |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and surge lifetime testing - suitable for engine control, ADAS, and body electronics |
| 600 W peak pulse power | Withstands high-energy transients per ISO 7637-2 and IEC 61000-4-5 without degradation - reduces need for upstream series impedance |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes overvoltage exposure to protected ICs - critical for safeguarding 3.3 V microcontrollers and CAN transceivers |
| Halogen-free M3 suffix | Complies with IPC-1752A material declaration requirements and EU RoHS Annex II - supports green manufacturing and end-of-life recycling |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Port |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching spikes in vehicle cabins. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching MCU ADC or LIN transceiver. Use Value: SMBG6.5CA-M3/5B's 11.2 V clamping and AEC-Q101 rating ensure reliable operation across -40 °C to +125 °C ambient while meeting OEM EMC test plans. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from solenoid coils or relay contacts. IC Role / Device Role / Timing Role: Primary transient suppressor on 24 V DC input lines, mounted adjacent to terminal block to minimize trace inductance. Use Value: SMBG6.5CA-M3/5B's 600 W rating and 53.6 A IPPM absorb repetitive 10/1000 μs surges without derating, extending module service life in factory automation. |
| USB 2.0 Data Line Protection | RS-485 Transceiver Interface |
Use Scenario: ESD and cable discharge protection for D+ and D− lines in embedded USB host/device ports exposed to human contact. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed between connector and USB PHY, minimizing signal distortion. Use Value: SMBG6.5CA-M3/5B's sub-500 μA leakage and symmetrical clamping preserve USB 2.0 eye diagram integrity while passing IEC 61000-4-2 ±15 kV air/±8 kV contact discharge. | Use Scenario: Surge suppression on RS-485 bus lines in building automation systems subject to lightning-induced ground potential differences. IC Role / Device Role / Timing Role: Common-mode TVS connected between A/B lines and ground, leveraging bidirectional symmetry to handle polarity-reversing transients. Use Value: SMBG6.5CA-M3/5B's matched VBR and low VC prevent false triggering of transceivers during 4 kV IEC 61000-4-5 common-mode surges. |
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 | Same VWM/VBR/VC, but SMB (DO-214AA) package - 0.21" × 0.15" footprint vs. SMBG's 0.18" × 0.155"; 100 W lower PPPM (500 W) | Less robust for high-energy transients; not AEC-Q101 qualified; suited for consumer-grade non-automotive use | Select when cost sensitivity outweighs automotive qualification and peak power margin |
| SMCJ6.5CA | Same electrical specs, but larger SMC (DO-214AB) package - 0.26" × 0.19" footprint; higher thermal mass; PPPM = 1500 W | Overqualified for PCB space-constrained designs; better for high-repetition-rate surges requiring thermal recovery | Select when board layout allows larger footprint and system requires >600 W surge headroom |
Compared with SMBJ6.5CA and SMCJ6.5CA, SMBG6.5CA-M3/5B uniquely balances AEC-Q101 compliance, 600 W surge capacity, and compact SMBG footprint - making it optimal for space-limited automotive and industrial modules where qualification and power density are jointly critical.
Availability
SMBG6.5CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O hardening, and USB/RS-485 interface safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SMBG6.5CA-M3/5B 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was developed to deliver AEC-Q101-qualified, high-power-density TVS diodes in ultra-low-profile packages for next-generation automotive and industrial control units demanding compact, robust transient immunity.
FAQ
What is the clamping voltage of SMBG6.5CA-M3/5B at its rated peak pulse current?
The SMBG6.5CA-M3/5B has a maximum clamping voltage (VC) of 11.2 V at its specified peak pulse current (IPPM) of 53.6 A, measured using a 10/1000 μs waveform. This value is guaranteed across temperature and production lots per Vishay document 88456, ensuring consistent overvoltage limiting for protected circuitry. The SMBG6.5CA-M3/5B maintains this performance with ≤10.5 % VBR tolerance and <500 μA leakage at 6.5 V.
Is SMBG6.5CA-M3/5B suitable for automotive applications?
Yes, SMBG6.5CA-M3/5B is AEC-Q101 qualified and explicitly rated for automotive use per Vishay documentation. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility (260 °C peak), and operation from -55 °C to +150 °C junction temperature - meeting requirements for engine control, body electronics, and ADAS subsystems. The SMBG6.5CA-M3/5B also carries halogen-free (M3) and RoHS compliance for full regulatory alignment.
How does the SMBG6.5CA-M3/5B differ from unidirectional variants like SMBG6.5A-M3/5B?
The SMBG6.5CA-M3/5B is bidirectional, providing symmetrical clamping in both polarities with identical VBR, VC, and leakage characteristics - essential for AC signals, differential buses, or polarity-agnostic protection. In contrast, SMBG6.5A-M3/5B is unidirectional, featuring a cathode band marking and conducting only in reverse bias; it also supports 100 A IFSM (not applicable to CA types). The SMBG6.5CA-M3/5B replaces two unidirectional devices in balanced line protection.
What is the thermal resistance of SMBG6.5CA-M3/5B, and how does it affect layout?
The SMBG6.5CA-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, per datasheet section "THERMAL CHARACTERISTICS". To maintain safe operation under repetitive surges, Vishay recommends mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - this layout reduces RθJA and prevents thermal runaway. The SMBG6.5CA-M3/5B's low RθJL enables efficient heat transfer to PCB planes.
Does SMBG6.5CA-M3/5B have a defined polarity marking on the package?
No, SMBG6.5CA-M3/5B has no polarity marking - consistent with its bidirectional design. Unlike unidirectional SMBG variants (e.g., SMBG6.5A-M3/5B), which feature a cathode band, the SMBG6.5CA-M3/5B uses identical terminals for both anode and cathode functions. This simplifies PCB layout for differential or AC-coupled lines and eliminates orientation errors during automated placement. The SMBG6.5CA-M3/5B's symmetry is confirmed in the "MECHANICAL DATA" and "PRIMARY CHARACTERISTICS" sections of Vishay document 88456.
SMBG6.5CA-M3/5B 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:
- -
- 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:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5CA-M3/5B FAQ
1.How can I place an order for SMBG6.5CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5CA-M3/5B 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 SMBG6.5CA-M3/5B reliable?
The price and inventory of SMBG6.5CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG6.5CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBG6.5CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5CA-M3/5B?
SMBG6.5CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5CA-M3/5B 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 SMBG6.5CA-M3/5B?
For technical support, including SMBG6.5CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5CA-M3/5B requirements.
6.How does Aetrix verify that SMBG6.5CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG6.5CA-M3/5B 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 SMBG6.5CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBG6.5CA-M3/5B?
All SMBG6.5CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5CA-M3/5B, 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 SMBG6.5CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBG6.5CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5CA-M3/5B 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 …
