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Vishay General Semiconductor - Diodes Division SMCG188CA-E3/59T
- Part No.:
- SMCG188CA-E3/59T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG188CA-E3/59T.pdf
- Description:
- 1.5KW,188V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,977
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Product details
Overview
SMCG188CA-E3/59T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, rated for 188 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), and clamping voltage of 328 V at 4.6 A IPPM under 10/1000 µs waveform. It provides robust protection for automotive-grade signal lines and power rails against ESD, lightning surges, and inductive switching transients.
For engineers reviewing the SMCG188CA-E3/59T datasheet, SMCG188CA-E3/59T pinout, SMCG188CA-E3/59T application, or SMCG188CA-E3/59T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both polarities-minimum VBR = 209 V and maximum VBR = 231 V at 1.0 mA test current. Its low incremental surge resistance and fast response time enable effective suppression of sub-microsecond transients without sacrificing system signal integrity.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting reliable operation up to TJ = +150 °C. The glass-passivated junction and matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12–48 V automotive and industrial bus systems. |
| PPPM | 1500 W - Peak pulse power handling capability under 10/1000 µs waveform; supports high-energy surge immunity per ISO 7637-2 and IEC 61000-4-5. |
| VBR min/max | 209 V / 231 V at IT = 1.0 mA - Tight breakdown voltage tolerance ensures predictable turn-on across temperature and production lot. |
| VC @ IPPM | 328 V at 4.6 A - Clamping voltage measured at peak surge current; determines maximum stress imposed on downstream ICs during transient events. |
| ID @ VWM | 1.0 µA - Ultra-low leakage at stand-off voltage preserves power efficiency in always-on circuits and battery-backed systems. |
| TJ max. | +150 °C - Junction temperature limit enabling use in under-hood automotive environments and high-ambient industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling. |
Pinout & Package
Package: SMCG (DO-215AB) - Surface-mount gull-wing leaded package with 2 terminals, 0.220–0.245 inch body length, 0.115–0.125 inch width, and 0.024–0.040 inch lead thickness. Complies with UL 94 V-0 flammability rating and JEDEC MS-012AC mechanical standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; common terminal for bidirectional conduction path | No polarity marking on device body; symmetric terminal function enables flexible PCB layout without orientation constraints. |
| Cathode | Current exit point in forward bias; common terminal for bidirectional conduction path | Identical electrical role to Anode in bidirectional configuration; both terminals behave identically under positive or negative transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Electrical symmetry ensures identical VBR, VC, and IPPM performance for ± polarity transients-critical for AC-coupled or floating signal lines. |
| AEC-Q101 qualification | Validated reliability for automotive applications including engine control units, ADAS sensors, and infotainment power supplies. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH; supports standard reflow without baking-reduces manufacturing overhead and risk of moisture-induced popcorning. |
| Glass-passivated junction | Enhances long-term stability and reduces parameter drift under thermal cycling and humidity exposure versus epoxy-passivated alternatives. |
| Low Rsurge | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 10605 ESD), improving protection margin for sensitive CMOS inputs. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN FD or LIN bus power rails from load dump and jump-start surges in vehicle ECUs. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between VBAT and GND to shunt energy before it reaches DC-DC converters or transceivers. Use Value: Withstands 1500 W pulses and operates up to +150 °C, meeting ISO 16750-2 load dump requirements without derating. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation pressure/temperature transmitters. IC Role / Device Role / Timing Role: Bidirectional clamp across signal and return paths to suppress EFT bursts and capacitive coupling noise. Use Value: Symmetrical clamping and 1.0 µA leakage preserve loop accuracy and minimize offset error in precision measurement circuits. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Shielding PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC input derived from Ethernet cables. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input rail upstream of primary-side controller and filter stage. Use Value: 328 V clamping voltage limits stress on 65 V-rated MOSFETs and electrolytic capacitors, extending system lifetime. |
Use Scenario: Adding secondary-level surge protection to USB-C power delivery (PD) ports in laptops and docking stations. IC Role / Device Role / Timing Role: Back-to-back TVS pair (or single bidirectional unit) across VBUS and GND to absorb IEC 61000-4-5 level 3 surges. Use Value: AEC-Q101 qualification and low capacitance ensure compatibility with USB 3.2 Gen 2 signaling integrity while meeting safety certifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ188CA | Same VWM (188 V) and PPPM (1500 W), but in SMA (DO-214AC) package with higher RθJA (90 °C/W) and no AEC-Q101 qualification. | Limited to commercial/industrial use; unsuitable for automotive under-hood deployment due to lower thermal robustness and qualification gap. | Select SMAJ188CA only when cost sensitivity outweighs automotive compliance and thermal margin requirements. |
| SMCJ188CA | Higher PPPM (3000 W), same VWM and DO-215AB package, but larger footprint (7.11 mm × 6.22 mm vs. SMCG's 7.11 mm × 5.59 mm) and no AEC-Q101 listing in base grade. | Supports higher surge classes (e.g., IEC 61000-4-5 4 kV) but requires PCB redesign and lacks automotive qualification unless specified as HE3/HM3 suffix. | Choose SMCJ188CA when system-level surge testing exceeds 1500 W requirements and AEC-Q101 is not mandated. |
Compared with SMAJ188CA and SMCJ188CA, SMCG188CA-E3/59T uniquely combines AEC-Q101 qualification, MSL Level 1 handling, and compact DO-215AB packaging-making it the optimal choice for space-constrained, thermally demanding automotive modules where qualification traceability is mandatory.
Availability
SMCG188CA-E3/59T is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom DC power input protection requiring stable component supply and full AEC-Q101 documentation traceability.
Supply support for SMCG188CA-E3/59T 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, thermal performance, and automotive-grade validation.
The SMCG series was developed specifically for high-power, space-constrained transient suppression in automotive and industrial environments-prioritizing AEC-Q101 compliance, low-profile packaging, and consistent clamping behavior across temperature.
FAQ
What is the clamping voltage of SMCG188CA-E3/59T at its rated peak pulse current?
The SMCG188CA-E3/59T has a maximum clamping voltage (VC) of 328 V at IPPM = 4.6 A under the standard 10/1000 µs waveform. This value is measured with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SMCG188CA-E3/59T qualified for automotive applications?
Yes, SMCG188CA-E3/59T is AEC-Q101 qualified-verified for use in automotive electronics including engine control, ADAS, and body electronics. The "HE3" or "HM3" base part variants explicitly denote AEC-Q101 qualification; the "E3/59T" suffix confirms RoHS-compliant industrial-grade construction with full qualification documentation available upon request.
What does the "CA" suffix indicate in SMCG188CA-E3/59T?
The "CA" suffix in SMCG188CA-E3/59T denotes a bidirectional configuration-meaning the device provides symmetrical transient voltage suppression for both positive and negative polarity transients. Unlike unidirectional types marked "A", CA devices have no cathode band marking and exhibit matched VBR, VC, and IPPM characteristics in either direction.
What is the moisture sensitivity level (MSL) rating for SMCG188CA-E3/59T?
SMCG188CA-E3/59T is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at conditions ≤30 °C/60% RH and can be subjected to standard Pb-free reflow profiles (peak 260 °C) without preconditioning bake. This simplifies SMT line integration and eliminates moisture-related yield loss.
How does SMCG188CA-E3/59T differ from SMCG188A-E3/59T?
SMCG188CA-E3/59T is bidirectional with symmetrical clamping, while SMCG188A-E3/59T is unidirectional and features a cathode band marking. Key differences include polarity marking, reverse leakage (ID = 1.0 µA for CA vs. 1.0 µA for A at VWM), and absence of forward voltage (VF) specification in CA devices-since VF is undefined for bidirectional operation.
SMCG188CA-E3/59T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 4.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG188CA-E3/59T FAQ
1.How can I place an order for SMCG188CA-E3/59T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG188CA-E3/59T 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 SMCG188CA-E3/59T reliable?
The price and inventory of SMCG188CA-E3/59T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG188CA-E3/59T is usually 5 days.
3.What payment methods are accepted for SMCG188CA-E3/59T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG188CA-E3/59T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG188CA-E3/59T?
SMCG188CA-E3/59T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG188CA-E3/59T 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 SMCG188CA-E3/59T?
For technical support, including SMCG188CA-E3/59T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG188CA-E3/59T requirements.
6.How does Aetrix verify that SMCG188CA-E3/59T is sourced from the original manufacturer or authorized distributors?
All SMCG188CA-E3/59T 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 SMCG188CA-E3/59T meets industry standards.
7.What is the process for return or replacement of SMCG188CA-E3/59T?
All SMCG188CA-E3/59T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG188CA-E3/59T, 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 SMCG188CA-E3/59T part is unused and in its original packaging.
Return procedure for SMCG188CA-E3/59T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG188CA-E3/59T Tags
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