My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCG6.5CA-E3/57T
- Part No.:
- SMCG6.5CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG6.5CA-E3/57T.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,853
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCG6.5CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) in the SMCG (DO-215AB) 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, 1500 W peak pulse power (10/1000 µs), 133.9 A peak pulse current (IPPM), and clamps to ≤11.2 V at rated surge. It is AEC-Q101 qualified and used in automotive sensor protection.
For engineers reviewing the SMCG6.5CA-E3/57T datasheet, SMCG6.5CA-E3/57T pinout, SMCG6.5CA-E3/57T application, or SMCG6.5CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, 1500 W surge rating, DO-215AB thermal performance (RθJA = 75 °C/W), AEC-Q101 qualification, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCG6.5CA-E3/57T operates as a bidirectional avalanche diode, symmetrically suppressing positive and negative transients without polarity marking. Its glass-passivated junction ensures stable breakdown and low leakage (<500 µA at VWM), while its low incremental surge resistance enables fast clamping response under 10/1000 µs waveforms.
Thermally, it is rated for TJ = −55 °C to +150 °C and dissipates 6.5 W at TA = 50 °C on an infinite heatsink. Derating follows Fig. 2 in the datasheet, with RθJL = 15 °C/W supporting robust lead-to-junction heat transfer during repetitive surges.
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 IT = 10 mA - guaranteed avalanche onset range for reliable bidirectional triggering |
| VC @ IPPM | ≤11.2 V at 133.9 A - clamped voltage during full 1500 W transient, limiting downstream stress |
| PPPM | 1500 W (10/1000 µs) - surge energy handling capacity compliant with IEC 61000-4-5 Level 4 |
| ID @ VWM | ≤500 µA - low leakage preserves signal integrity in high-impedance sensor interfaces |
| TJ max | +150 °C - supports under-hood automotive environments and industrial ambient conditions |
| Package | SMCG (DO-215AB) - surface-mount gull-wing outline optimized for automated placement and thermal pad layout |
Pinout & Package
SMCG6.5CA-E3/57T uses the SMCG (DO-215AB) package: a bidirectional surface-mount device with two terminals and no polarity marking. The case conforms to JEDEC DO-215AB mechanical dimensions (0.220–0.245 in body length, 0.115–0.125 in width, 0.095 in height), with matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; symmetrical conduction enables dual-direction protection without orientation constraints |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; no marking required per bidirectional construction per datasheet note |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking requirements |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets flammability safety standards for enclosed electronic assemblies |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving clamping fidelity |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Lines |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and engine crankshaft position sensors from load dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor signal pair (e.g., differential VR or Hall-effect outputs) to clamp ±100 V spikes without DC bias disruption. Use Value: Maintains signal fidelity below 11.2 V clamping threshold while surviving repeated 1500 W surges per ISO 7637-2, extending sensor module lifetime. | Use Scenario: Safeguarding CANH/CANL lines in factory automation gateways against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (typ. <50 pF at 0 V) bidirectional shunt device placed at connector entry point to divert transients before transceiver input. Use Value: Prevents CAN transceiver latch-up or damage while preserving signal rise/fall times due to minimal parasitic capacitance and sub-ns response. |
| Consumer Power Adapter Inputs | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side transient suppression on 5 V/9 V USB-C PD adapter outputs exposed to hot-plug and cable coupling noise. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted directly at output connector to limit voltage excursions during fault conditions without affecting regulation loop stability. Use Value: Enables compliance with IEC 61000-4-5 (10/1000 µs, 1 kV) while maintaining tight 6.5 V nominal output tolerance via precise VWM/VBR matching. | Use Scenario: Primary protection for Ethernet PHY interface lines (e.g., 10/100BASE-TX) in VoIP gateways subjected to lightning-induced surges on building wiring. IC Role / Device Role / Timing Role: First-stage clamping device on line side of isolation transformer, coordinated with gas discharge tube (GDT) upstream for staged protection. Use Value: Absorbs initial 1500 W surge energy before GDT fires, reducing let-through voltage and preventing transformer saturation or PHY IC damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5CA-E3/57T | Same VWM (6.5 V) and bidirectional configuration, but lower PPPM (400 W) and smaller SMA (DO-214AC) package | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is Class 2 or lower |
| SMCJ6.5CA-E3/57T | Same VWM and DO-214AB package, but higher PPPM (1500 W) and larger footprint (7.11 mm × 6.22 mm vs. SMCG's 6.60 mm × 5.59 mm) | Requires larger PCB pad area; offers marginally better thermal dissipation (RθJA = 65 °C/W) | Select when existing layout accommodates SMCJ outline and higher thermal margin is prioritized over miniaturization |
Compared with SMAJ6.5CA-E3/57T and SMCJ6.5CA-E3/57T, the SMCG6.5CA-E3/57T delivers identical 1500 W surge capability in the smallest DO-215AB footprint, enabling higher component density while maintaining AEC-Q101 qualification and MSL Level 1 reflow compatibility-critical for next-gen automotive ECUs and compact industrial modules.
Availability
SMCG6.5CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interfaces, consumer power adapter outputs, and telecom line card surge protection requiring stable component supply across production lifecycles.
Supply support for SMCG6.5CA-E3/57T 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, automotive qualification, and high-volume manufacturability.
The SMCG series was developed specifically for high-power, surface-mount transient suppression in space-constrained automotive and industrial applications where AEC-Q101 compliance, low-profile packaging, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMCG6.5CA-E3/57T at its rated peak pulse current?
The SMCG6.5CA-E3/57T clamps to a maximum of 11.2 V at its rated peak pulse current (IPPM) of 133.9 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Electrical Characteristics table on page 2 of Vishay document 88457. The low clamping voltage ensures protected circuits remain within safe operating limits during surge events.
Is SMCG6.5CA-E3/57T suitable for automotive applications?
Yes, SMCG6.5CA-E3/57T is AEC-Q101 qualified per note (1) on page 3 of the datasheet and carries the HE3 suffix variant designation for automotive grade. Its −55 °C to +150 °C operating junction temperature range, glass-passivated junction, and MSL Level 1 rating make it suitable for under-hood and cabin-mounted ECUs, including those protecting CAN, LIN, and sensor interfaces in modern vehicles.
Does SMCG6.5CA-E3/57T have polarity markings?
No, SMCG6.5CA-E3/57T does not have polarity markings because it is a bidirectional TVS diode. As stated in the Mechanical Data section, "no marking on bidirectional types." Both terminals are functionally identical, allowing placement in either orientation on the PCB without affecting electrical performance or clamping behavior.
What is the thermal resistance of SMCG6.5CA-E3/57T from junction to ambient?
The typical thermal resistance from junction to ambient (RθJA) for SMCG6.5CA-E3/57T is 75 °C/W, measured on the minimum recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout per footnote (1) on page 3. This value assumes standard FR-4 PCB construction and is critical for calculating safe power derating above TA = 25 °C using the curve in Fig. 2 of the datasheet.
How does SMCG6.5CA-E3/57T differ from unidirectional SMCG6.5A-E3/57T?
SMCG6.5CA-E3/57T is bidirectional with symmetric clamping in both polarities and no cathode band, whereas SMCG6.5A-E3/57T is unidirectional with a marked cathode end and forward conduction capability. Their VWM and VBR values differ slightly: SMCG6.5CA-E3/57T has VWM = 6.5 V and VBR = 7.22–7.98 V, while SMCG6.5A-E3/57T shares the same VWM but lists VBR = 7.22–7.98 V only in the reverse direction and adds VF = 3.5 V at 100 A forward conduction.
SMCG6.5CA-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC 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):
- 133.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCG)
SMCG6.5CA-E3/57T FAQ
1.How can I place an order for SMCG6.5CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG6.5CA-E3/57T 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 SMCG6.5CA-E3/57T reliable?
The price and inventory of SMCG6.5CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG6.5CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG6.5CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG6.5CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG6.5CA-E3/57T?
SMCG6.5CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG6.5CA-E3/57T 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 SMCG6.5CA-E3/57T?
For technical support, including SMCG6.5CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG6.5CA-E3/57T requirements.
6.How does Aetrix verify that SMCG6.5CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG6.5CA-E3/57T 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 SMCG6.5CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG6.5CA-E3/57T?
All SMCG6.5CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG6.5CA-E3/57T, 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 SMCG6.5CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCG6.5CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG6.5CA-E3/57T 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 …
