My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ6.5C-E3/57T
- Part No.:
- SMCJ6.5C-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.5C-E3/57T.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,509
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ6.5C-E3/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) 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, 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 line protection.
For engineers reviewing the SMCJ6.5C-E3/57T datasheet, SMCJ6.5C-E3/57T pinout, SMCJ6.5C-E3/57T application, or SMCJ6.5C-E3/57T equivalent, this page delivers verified electrical specs, bi-directional clamping behavior, thermal resistance (RθJA = 75 °C/W), RoHS-compliant matte tin terminations, and AEC-Q101 qualification status - all critical for automotive-grade ESD/surge design validation.
Technical Context
The SMCJ6.5C-E3/57T operates as a bi-directional avalanche diode with symmetrical clamping in both polarities, enabling protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable VBR and low leakage (<500 µA at VWM), while the DO-214AB package supports automated placement and meets UL 94 V-0 flammability rating.
It delivers 1500 W surge handling per 10/1000 µs waveform when mounted on 8.0 mm × 8.0 mm copper pads, with thermal resistance RθJL = 15 °C/W to lead and RθJA = 75 °C/W to ambient. The device is rated for -55 °C to +150 °C operating junction temperature and is qualified to AEC-Q101 for automotive under-hood and body electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 5 V logic or CAN bus lines. |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown range ensures predictable turn-on across production lot; tight tolerance supports robust design margining. |
| VC @ IPPM | ≤11.2 V - Clamped voltage during 133.9 A surge; limits downstream IC stress to safe levels in 12 V automotive systems. |
| PPPM | 1500 W - Peak pulse power rating per 10/1000 µs waveform; enables protection against ISO 7637-2 Pulse 1/2/5a transients. |
| ID @ VWM | ≤500 µA - Reverse leakage at 6.5 V; low enough to avoid signal integrity degradation in high-impedance sensor interfaces. |
| TJ max | +150 °C - Maximum junction temperature; supports under-hood deployment in engine control units and ADAS modules. |
| Package | DO-214AB (SMCJ) - Surface-mount outline with J-bend leads; compatible with standard SMT reflow profiles and automated pick-and-place. |
Pinout & Package
DO-214AB (SMCJ) package: surface-mount, bi-directional device with no polarity marking; two terminals - anode and cathode are functionally identical due to symmetrical construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bi-directional) | Connects to protected line; conducts surge current equally in either direction during overvoltage events. |
| Cathode | Transient return path (bi-directional) | Functionally identical to anode; no band marking distinguishes polarity - device is fully symmetrical. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, infotainment, and ADAS sensors - eliminates need for additional reliability screening. |
| Bi-directional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded sensor outputs without polarity constraints. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage drift over temperature and lifetime - critical for mission-critical automotive systems. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow processes without baking or special handling - reduces manufacturing complexity. |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for automotive interior and under-hood assemblies - satisfies OEM safety compliance mandates. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed between sensor output and microcontroller ADC input to limit transient excursions to ≤11.2 V. Use Value: Prevents ADC saturation and latch-up during ISO 7637-2 Pulse 5a (load dump), maintaining signal fidelity and system uptime. |
Use Scenario: Safeguarding CAN_H/CAN_L differential pair in vehicle body control units against ESD and coupled transients from nearby solenoid drivers. IC Role / Device Role / Timing Role: Paired SMCJ6.5C-E3/57T devices (one per line) referenced to ground, clamping common-mode surges up to ±1500 W. Use Value: Maintains CAN bit timing integrity by limiting voltage overshoot to <12 V, avoiding recessive-to-dominant corruption during EMC testing. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
|
Use Scenario: Input-stage transient suppression on 5 V/12 V DC-DC converter inputs in smart home hubs subjected to lightning-induced surges via PoE or wall adapters. IC Role / Device Role / Timing Role: First-line clamping device placed before input filter capacitor, absorbing energy before it reaches primary-side controller. Use Value: Limits input rail excursion to ≤11.2 V during 10/1000 µs surges, preventing overvoltage shutdown and extending adapter MTBF. |
Use Scenario: Protecting Ethernet PHY interface pins on telecom access equipment connected to outdoor cabling vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: Bi-directional TVS on each data line (TX+/TX−, RX+/RX−), referenced to chassis ground to shunt common-mode transients. Use Value: Clamps 1 kV/0.5 kA IEC 61000-4-5 surges to <12 V, preserving PHY link stability and avoiding packet loss during field operation. |
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-E3/61 | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (~120 °C/W), same VWM/VBR range. | Suitable for space-constrained consumer PCBs with lower surge exposure; not AEC-Q101 qualified. | Select when board area is limited and automotive qualification is unnecessary; verify thermal derating for >100 kHz surge repetition. |
| 1.5KE6.8CA | Through-hole DO-201 package, 1500 W rating, same VWM/VBR, but higher RθJA (~65 °C/W on large pads) and no AEC-Q101 qualification. | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is required. | Choose for cost-sensitive, non-automotive designs needing proven field history; avoid in new automotive or high-density SMT layouts. |
Compared with SMAJ6.5CA-E3/61 and 1.5KE6.8CA, the SMCJ6.5C-E3/57T uniquely combines AEC-Q101 qualification, DO-214AB thermal performance (RθJA = 75 °C/W), and 1500 W surge capability in a surface-mount package optimized for automotive SMT lines - making it the preferred choice for new vehicle ECUs.
Availability
SMCJ6.5C-E3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and telecom line card surge protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCJ6.5C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and automotive-grade qualification.
The SMCJ6.5C-E3/57T belongs to Vishay's TRANSZORB® family of transient voltage suppressors, engineered specifically for high-energy surge immunity in harsh environments such as automotive, industrial, and telecom infrastructure.
FAQ
What is the polarity configuration of the SMCJ6.5C-E3/57T?
The SMCJ6.5C-E3/57T is a bi-directional TVS diode with no polarity marking - its anode and cathode terminals are functionally identical. This allows symmetric clamping on AC-coupled or floating lines without orientation concerns during placement. Unlike uni-directional variants (e.g., SMCJ6.5A), the "C" suffix confirms bi-directional operation per Vishay's naming convention.
Does the SMCJ6.5C-E3/57T meet automotive qualification standards?
Yes, the SMCJ6.5C-E3/57T is AEC-Q101 qualified, as confirmed in Vishay's datasheet revision 11-Dec-12 (Document Number: 88394). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating its suitability for automotive powertrain, chassis, and body electronics applications.
What is the maximum clamping voltage of the SMCJ6.5C-E3/57T under surge conditions?
The SMCJ6.5C-E3/57T clamps to a maximum of 11.2 V at its rated peak pulse current (IPPM = 133.9 A) under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and represents the upper bound of voltage seen by downstream circuitry during worst-case transient events.
Can the SMCJ6.5C-E3/57T be used in place of a uni-directional TVS like SMCJ6.5A?
No - the SMCJ6.5C-E3/57T is bi-directional and lacks polarity marking, whereas the SMCJ6.5A is uni-directional with a cathode band. Substituting them requires circuit review: SMCJ6.5C-E3/57T may be used on AC or floating nodes, but cannot replace SMCJ6.5A on DC-biased lines without risking improper clamping behavior or reverse conduction.
What is the thermal resistance of the SMCJ6.5C-E3/57T and how does it affect layout?
The SMCJ6.5C-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To maintain safe junction temperatures during repeated surges, PCB layout must provide adequate copper area and minimize trace length to thermal planes - insufficient copper increases thermal impedance and risks exceeding the +150 °C TJ max rating.
SMCJ6.5C-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 122A
- 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 (SMCJ)
SMCJ6.5C-E3/57T FAQ
1.How can I place an order for SMCJ6.5C-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.5C-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 SMCJ6.5C-E3/57T reliable?
The price and inventory of SMCJ6.5C-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 SMCJ6.5C-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ6.5C-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.5C-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.5C-E3/57T?
SMCJ6.5C-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.5C-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 SMCJ6.5C-E3/57T?
For technical support, including SMCJ6.5C-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.5C-E3/57T requirements.
6.How does Aetrix verify that SMCJ6.5C-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ6.5C-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 SMCJ6.5C-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ6.5C-E3/57T?
All SMCJ6.5C-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.5C-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 SMCJ6.5C-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ6.5C-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.5C-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 …
