My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG6.5CAHE3/5B
- Part No.:
- SMBG6.5CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5CAHE3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,594
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG6.5CAHE3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal or power lines. It features 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), <11.2 V clamping voltage at 53.6 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG6.5CAHE3/5B datasheet, SMBG6.5CAHE3/5B pinout, SMBG6.5CAHE3/5B application, or SMBG6.5CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.48), MSL Level 1 reflow compatibility, RoHS-compliant matte tin terminations, and suitability for CAN/LIN bus, sensor I/O, and automotive body electronics protection.
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical avalanche behavior in both polarities, enabling robust protection of bidirectional interfaces without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports consistent clamping under repetitive transients.
The SMBG6.5CAHE3/5B is rated for 150 °C maximum junction temperature and exhibits 100 °C/W typical thermal resistance (junction-to-ambient on 5.0 mm × 5.0 mm copper pads). It meets UL 497B recognition and complies with ANSI/IEEE C62.35 surge waveform standards for transient immunity testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Ensures reliable avalanche initiation within tight tolerance band |
| VC @ IPPM | 11.2 V at 53.6 A - Clamping voltage during 600 W 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - Peak surge power handling per single transient event, duty cycle ≤ 0.01 % |
| IPPM | 53.6 A - Peak pulse current corresponding to 600 W into specified clamping voltage |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing lead frame with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; one side of symmetrical avalanche junction | Connected to protected line; identical electrical behavior as cathode due to bidirectional design |
| Cathode | Current exit terminal in forward bias; second side of symmetrical avalanche junction | Connected to protected line; interchangeable with anode-no functional distinction in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., LIN, RS-485, sensor bridges) without polarity concerns |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events common in 12 V automotive systems |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules, body controllers, and ADAS sensor interfaces |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning or dry-pack requirements |
| Glass-passivated junction | Provides stable VBR over lifetime and improved resistance to humidity-induced parameter drift |
Applications
| Automotive Sensor Protection | LIN Bus Interface Protection |
|---|---|
Use Scenario: Protecting analog output pins of pressure, temperature, or position sensors in engine bay or chassis modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between sensor signal line and ground, absorbing transients before they reach ADC input or microcontroller GPIO. Use Value: Limits clamped voltage to ≤11.2 V, ensuring sensor ICs with 12 V absolute maximum ratings remain within safe operating area during 53.6 A surges. | Use Scenario: Safeguarding LIN transceiver data lines (LIN_H/L) against ESD and coupled transients in door modules, seat controls, and lighting nodes. IC Role / Device Role / Timing Role: Bidirectional shunt protector across LIN bus pair, responding within picoseconds to maintain signal integrity during fast-rising transients. Use Value: Symmetrical clamping ensures equal protection for both logic-high and logic-low states, preserving LIN timing margins and preventing false wake-up or bus lockup. |
| Industrial I/O Module Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding 24 V digital input channels in PLC I/O cards from field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between input terminal and common rail, conducting only during overvoltage events above 6.5 V. Use Value: Low leakage (<1.0 µA) avoids loading of high-impedance voltage dividers used in level detection, maintaining input accuracy across temperature. | Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, vacuum cleaners, and power tools. IC Role / Device Role / Timing Role: Bidirectional clamp across motor terminals or H-bridge outputs, diverting inductive kickback energy away from driver FETs. Use Value: 600 W rating handles repeated 10/1000 µs surges from motor startup/shutdown cycles without degradation, extending system MTBF. |
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 lower PPPM = 600 W (same rating), different package: SMB (DO-214AA), slightly larger footprint and higher RθJA | Less suitable for ultra-dense automotive PCBs where SMBG's smaller DO-215AA saves board space | Select SMBG6.5CAHE3/5B when layout space is constrained and AEC-Q101 compliance is mandatory. |
| 1.5SMC6.5CA | Same electrical specs, but larger SMC (DO-214AB) package, higher IFSM (not applicable for bidirectional), no AEC-Q101 qualification | Not approved for automotive use; limited to industrial/commercial designs with less stringent reliability requirements | Choose SMBG6.5CAHE3/5B for automotive OEM or Tier-1 programs requiring certified qualification and compact mounting. |
Compared with SMBJ6.5CA and 1.5SMC6.5CA, the SMBG6.5CAHE3/5B offers identical clamping performance in a smaller, AEC-Q101-qualified package-critical for space-constrained automotive ECUs where thermal management and qualification traceability directly impact production release timelines.
Availability
SMBG6.5CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, LIN bus protection, industrial I/O modules, and consumer appliance motor control requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMBG6.5CAHE3/5B 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, precision, and automotive-grade qualification.
The SMBG series was developed specifically for high-reliability, space-efficient transient suppression in automotive and industrial environments-prioritizing AEC-Q101 compliance, low-profile packaging, and repeatable clamping performance under harsh thermal and electrical stress.
FAQ
What does the "HE3" suffix indicate in SMBG6.5CAHE3/5B?
The HE3 suffix denotes RoHS-compliant construction with AEC-Q101 qualification. It specifies matte tin-plated leads, glass passivation, and full automotive reliability testing per JESD22-A108 and AEC-Q101 stress conditions. This distinguishes SMBG6.5CAHE3/5B from industrial-grade E3 variants and confirms its suitability for automotive production use.
Is SMBG6.5CAHE3/5B unidirectional or bidirectional?
SMBG6.5CAHE3/5B is a bidirectional transient voltage suppressor, as confirmed by the "CA" suffix per Vishay's naming convention. It provides symmetrical clamping in both polarities, with identical VBR, VC, and leakage characteristics regardless of voltage polarity-ideal for protecting AC-coupled or differential signal paths without polarity constraints.
What is the maximum clamping voltage for SMBG6.5CAHE3/5B under surge conditions?
The maximum clamping voltage (VC) for SMBG6.5CAHE3/5B is 11.2 V at 53.6 A peak pulse current, measured with a 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage imposed on protected circuitry during a 600 W transient event, enabling precise downstream IC voltage margining.
Does SMBG6.5CAHE3/5B require special PCB layout considerations?
Yes-Vishay specifies mounting on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and thermal performance. Narrow traces or insufficient copper reduce surge handling and increase localized heating; the SMBG6.5CAHE3/5B datasheet explicitly ties PPPM derating to pad size and layout geometry.
Can SMBG6.5CAHE3/5B be used in place of SMBG6.5A in a design?
No-SMBG6.5CAHE3/5B is bidirectional while SMBG6.5A is unidirectional. Substituting them requires verifying circuit polarity: SMBG6.5A has a cathode band and conducts forward current, whereas SMBG6.5CAHE3/5B has no marking and clamps equally in both directions. Using SMBG6.5CAHE3/5B in a unidirectional path may cause unintended conduction or fail to protect against forward surges.
SMBG6.5CAHE3/5B 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5CAHE3/5B FAQ
1.How can I place an order for SMBG6.5CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5CAHE3/5B 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 SMBG6.5CAHE3/5B reliable?
The price and inventory of SMBG6.5CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG6.5CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG6.5CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5CAHE3/5B?
SMBG6.5CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5CAHE3/5B 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 SMBG6.5CAHE3/5B?
For technical support, including SMBG6.5CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5CAHE3/5B requirements.
6.How does Aetrix verify that SMBG6.5CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG6.5CAHE3/5B 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 SMBG6.5CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG6.5CAHE3/5B?
All SMBG6.5CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5CAHE3/5B, 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 SMBG6.5CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBG6.5CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5CAHE3/5B 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 …
