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Vishay General Semiconductor - Diodes Division SMCG5.0CAHE3/57T
- Part No.:
- SMCG5.0CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG5.0CAHE3/57T.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,706
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Product details
Overview
SMCG5.0CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, with 5.0 V stand-off voltage (VWM), 6.40–7.07 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and AEC-Q101 qualification for automotive use. It protects signal lines and power rails in sensor interfaces and control circuits against ESD and inductive switching transients.
For engineers reviewing the SMCG5.0CAHE3/57T datasheet, SMCG5.0CAHE3/57T pinout, SMCG5.0CAHE3/57T application, or SMCG5.0CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, 9.20 V maximum clamping voltage at 163 A, MSL Level 1 moisture sensitivity, RoHS-compliant HE3 suffix, and DO-215AB thermal performance with RθJA = 75 °C/W.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping voltage surges above ±6.40 V in both polarities. Its glass-passivated junction ensures stable breakdown and low leakage (<1000 µA at VWM), while the low incremental surge resistance enables effective energy diversion during 10/1000 µs transients.
The SMCG5.0CAHE3/57T is rated for TJ = –55 °C to +150 °C and derates linearly above 25 °C ambient per Figure 2. It meets UL 497B recognition (QVGQ2) and JESD201 Class 2 whisker resistance, supporting high-reliability deployment in automotive ECUs and industrial I/O modules without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - Ensures reliable turn-on within tight tolerance for precise overvoltage protection |
| VC @ IPPM | 9.20 V at 163 A - Clamping voltage limits downstream IC stress during 10/1000 µs surge events |
| PPPM | 1500 W - Sustains high-energy transients common in automotive load-dump and inductive switch-off |
| ID @ VWM | ≤1000 µA - Low leakage preserves signal integrity on high-impedance sensor or communication lines |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures |
| MSL Level | Level 1 (260 °C peak reflow) - Supports standard SMT assembly without dry-pack or baking requirements |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing leadframe with matte tin-plated terminals, 8.0 mm × 8.0 mm copper pad layout recommended for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal (bidirectional) | Terminal where current flows into device during positive or negative transient polarity - no polarity marking on body |
| Cathode | Current exit terminal (bidirectional) | Terminal where current flows out of device during either polarity - symmetrical structure eliminates cathode band marking |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test plan |
| Glass passivated junction | Stable VBR over lifetime and improved resistance to humidity-induced parameter drift vs. epoxy-passivated alternatives |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during fast transients, reducing risk of latch-up or gate oxide damage in protected MOSFETs/ICs |
| UL 497B recognized (QVGQ2) | Meets safety agency requirements for telecom and industrial signal-line protectors without additional system-level certification burden |
| RoHS + AEC-Q101 HE3 suffix | Combines environmental compliance with automotive qualification - no halogen-free requirement, but fully compliant with JESD201 Class 2 whisker testing |
Applications
| Automotive Sensor Interface | Industrial CAN Bus Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector or IC pin to shunt surge energy before it reaches sensitive input stages. Use Value: With 9.20 V clamping at 163 A and AEC-Q101 qualification, SMCG5.0CAHE3/57T prevents false triggering and permanent damage during repetitive 10/1000 µs transients up to 1500 W. | Use Scenario: Safeguarding differential CAN_H/CAN_L lines in factory automation controllers subjected to ESD (±8 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Symmetric TVS pair (one per line) referenced to ground, providing matched clamping response without polarity dependency. Use Value: The 5.0 V VWM aligns with CAN bus common-mode range, while bidirectional operation ensures protection against both positive and negative transients without discrete diode pairing. |
| Consumer USB Port Protection | Telecom DSL Line Interface |
Use Scenario: Shielding USB 2.0 D+/D− data lines in portable docking stations from human-body-model ESD and hot-plug induced transients. IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline between connector and PHY, minimizing signal distortion while meeting IEC 61000-4-2 Level 4. Use Value: SMCG5.0CAHE3/57T's <1000 µA leakage at 5.0 V preserves signal integrity, and its 10/1000 µs response ensures sub-nanosecond clamping onset critical for high-speed data lines. | Use Scenario: Protecting ADSL/VDSL line drivers and receivers in customer-premises equipment from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary protection stage mounted at line entry, clamping common-mode surges before they reach transformer-coupled front-end circuitry. Use Value: 1500 W PPPM rating and 75 °C/W RθJA allow sustained surge handling without thermal runaway when paired with recommended 8.0 mm × 8.0 mm copper pads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Unidirectional; VBR 6.40–7.07 V; same PPPM (1500 W); SMA (DO-214AC) package; higher RθJA (110 °C/W) | Requires polarity-aware placement; less suitable for differential or AC-coupled lines without series diodes | Select SMAJ5.0A only when unidirectional clamping suffices and board space allows larger SMA footprint |
| 1.5KE5.0CA | Through-hole; bidirectional; same VWM/VBR; 1500 W PPPM; TO-218 package; lower thermal resistance (RθJA ≈ 50 °C/W) | Not SMT-compatible; requires wave solder or hand assembly; better for high-power legacy designs with heatsinking | Choose 1.5KE5.0CA only for through-hole production or where PCB real estate permits larger axial/TO packages |
Compared with SMAJ5.0A and 1.5KE5.0CA, SMCG5.0CAHE3/57T uniquely combines bidirectional SMT capability, AEC-Q101 qualification, MSL Level 1 compatibility, and optimized thermal performance in DO-215AB-making it the preferred choice for new automotive and industrial surface-mount designs requiring zero-polarity dependency and high-volume reflow assembly.
Availability
SMCG5.0CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer USB port protection, and telecom DSL line interfaces requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for SMCG5.0CAHE3/57T 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, efficiency, and application-specific optimization.
The SMCG series was developed specifically for high-power, surface-mount transient suppression in automotive and industrial environments-delivering AEC-Q101-qualified robustness in a compact DO-215AB footprint with industry-leading clamping performance.
FAQ
What does the 'CA' suffix indicate in SMCG5.0CAHE3/57T?
The 'CA' suffix denotes a bidirectional configuration: SMCG5.0CAHE3/57T clamps voltage transients equally in both polarities, unlike unidirectional variants (e.g., SMCG5.0A). This eliminates polarity marking on the device body and enables direct placement on AC-coupled or differential signal lines without orientation concerns-critical for CAN, RS-485, or USB protection where signal symmetry matters.
Is SMCG5.0CAHE3/57T suitable for automotive applications?
Yes, SMCG5.0CAHE3/57T is AEC-Q101 qualified and carries the HE3 suffix, indicating RoHS compliance plus full automotive stress testing (including temperature cycling, HTRB, and ESD). Its –55 °C to +150 °C operating range, 1500 W surge rating, and UL 497B recognition make it appropriate for engine control units, ADAS sensor modules, and infotainment system I/O protection per ISO 7637-2 and ISO 16750-2 requirements.
What is the maximum clamping voltage for SMCG5.0CAHE3/57T and at what current?
The maximum clamping voltage (VC) for SMCG5.0CAHE3/57T is 9.20 V, measured at the peak pulse current (IPPM) of 163 A under a standardized 10/1000 µs waveform. This value reflects worst-case voltage seen by downstream circuitry during surge events and is confirmed per test condition in Vishay Document 88457, Table on page 2.
Does SMCG5.0CAHE3/57T require a heatsink in typical applications?
No external heatsink is required for SMCG5.0CAHE3/57T in standard surge protection applications. Its RθJA of 75 °C/W assumes mounting on 8.0 mm × 8.0 mm copper pads per terminal (per datasheet note), which provides sufficient thermal dissipation for single-event transients. Continuous power dissipation is limited to 6.5 W at TA = 50 °C, but TVS operation is inherently transient-so steady-state heating is not a design factor unless subjected to repetitive surges exceeding duty-cycle limits.
How does the HE3 suffix differ from E3 or M3 in SMCG5.0CAHE3/57T?
The HE3 suffix indicates RoHS compliance *and* AEC-Q101 qualification, whereas E3 is RoHS-compliant industrial grade only, and M3 adds halogen-free composition. SMCG5.0CAHE3/57T therefore meets automotive reliability standards (including accelerated life testing and mechanical robustness) beyond basic environmental compliance-making it mandatory for Tier 1 automotive suppliers and optional but strongly recommended for industrial applications demanding extended temperature stability and long-term field reliability.
SMCG5.0CAHE3/57T 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCG)
SMCG5.0CAHE3/57T FAQ
1.How can I place an order for SMCG5.0CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG5.0CAHE3/57T 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 SMCG5.0CAHE3/57T reliable?
The price and inventory of SMCG5.0CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG5.0CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG5.0CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG5.0CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG5.0CAHE3/57T?
SMCG5.0CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG5.0CAHE3/57T 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 SMCG5.0CAHE3/57T?
For technical support, including SMCG5.0CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG5.0CAHE3/57T requirements.
6.How does Aetrix verify that SMCG5.0CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG5.0CAHE3/57T 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 SMCG5.0CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG5.0CAHE3/57T?
All SMCG5.0CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG5.0CAHE3/57T, 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 SMCG5.0CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG5.0CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG5.0CAHE3/57T Tags
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