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Vishay General Semiconductor - Diodes Division SMCG15CAHE3/57T
- Part No.:
- SMCG15CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG15CAHE3/57T.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,438
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Product details
Overview
SMCG15CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for clamping fast-rising ESD and surge transients. It features a 15 V stand-off voltage (VWM), 24.4 V maximum clamping voltage (VC) at 61.5 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the SMCG15CAHE3/57T datasheet, SMCG15CAHE3/57T pinout, SMCG15CAHE3/57T application, or SMCG15CAHE3/57T equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, DO-215AB mechanical data, thermal resistance (RθJA = 75 °C/W), and real-world protection use cases for bidirectional signal line hardening.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) of 16.7–18.5 V at 1 mA test current and ≤1.0 µA reverse leakage at 15 V stand-off. Its glass-passivated junction enables sub-nanosecond response to transients, while low incremental surge resistance ensures stable clamping under repetitive 10/1000 µs surges up to 1500 W.
Rated for -55 °C to +150 °C junction temperature, it meets J-STD-020 MSL Level 1 (260 °C peak reflow), supports automated SMT placement, and carries AEC-Q101 qualification - confirming suitability for automotive electronics where reliability under thermal cycling and vibration is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range for protected lines. |
| VBR min/max | 16.7 V / 18.5 V at 1 mA - Confirmed bidirectional breakdown threshold; ensures symmetrical turn-on during positive/negative transients. |
| VC @ IPPM | 24.4 V at 61.5 A - Clamped voltage during 10/1000 µs surge; guarantees downstream ICs see <24.4 V even under full-rated transient stress. |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on 8.0 mm × 8.0 mm copper pads; informs derating above 25 °C ambient. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and mechanical shock testing per AEC standard. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded case with matte tin-plated terminals; meets UL 94 V-0, J-STD-002 solderability, and JESD201 Class 2 whisker resistance. Bidirectional devices have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical junction; conducts during negative transients to clamp voltage below -24.4 V. |
| Cathode | Transient current entry (positive polarity) | Other terminal of symmetrical junction; conducts during positive transients to clamp voltage above +24.4 V. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance for ± polarity transients - eliminates need for dual unidirectional devices on AC or differential lines. |
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and infotainment I/O - no additional qualification required. |
| Low-profile DO-215AB | 0.220–0.245 inch body length, 0.115–0.125 inch width - fits high-density PCB layouts without height interference in stacked modules. |
| Glass-passivated junction | Stable leakage (<1 µA at VWM) and repeatable clamping over 1000+ surge events - critical for long-life industrial deployments. |
| MSL Level 1 rating | Reflow-compatible up to 260 °C peak without preconditioning - simplifies manufacturing integration into standard SMT lines. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector or IC pin to shunt surge energy before it reaches sensitive analog front-ends. Use Value: Maintains signal integrity by limiting transient excursions to ≤24.4 V while surviving repeated 1500 W surges - validated per AEC-Q101 for 15-year vehicle life. |
Use Scenario: Hardening RS-485/CAN FD physical layer nodes against EFT (IEC 61000-4-4) and surge (IEC 61000-4-5) in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) bidirectional clamp across differential pair (CAN_H/CAN_L) to preserve signal edge rate. Use Value: Enables >1 Mbps CAN FD communication without distortion while meeting IEC 61000-4-5 Level 4 (4 kV line-earth) immunity requirements. |
| Consumer USB Port ESD Protection | Telecom DSL Line Interface |
Use Scenario: Safeguarding USB 2.0 D+/D- lines in set-top boxes and smart displays against human-body-model (HBM) ESD up to ±15 kV. IC Role / Device Role / Timing Role: Fast-response (sub-ns) bidirectional clamp mounted at port entry to divert ESD current away from USB PHY. Use Value: Prevents latch-up and gate oxide damage in USB transceivers with <1.0 µA leakage at 15 V - ensuring no impact on idle power budget. |
Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: High-power (1500 W) bidirectional suppressor placed between transformer secondary and codec IC. Use Value: Withstands 10/1000 µs surges up to 61.5 A while maintaining <24.4 V clamping - preserving codec functionality during multi-kV line events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15CA | Same VWM (15 V) and VC (24.4 V), but lower PPPM (400 W); SMA (DO-214AC) package, larger footprint and higher RθJA (100 °C/W). | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select SMAJ15CA only for cost-sensitive consumer applications with <400 W surge exposure and no AEC-Q101 requirement. |
| 1.5KE15CA | Same VWM/VC, but through-hole DO-15 package; 1500 W rating, but not AEC-Q101 qualified and MSL-unrated. | Requires wave soldering; incompatible with automated SMT lines and automotive thermal cycling validation. | Choose 1.5KE15CA only for legacy through-hole designs where rework tolerance and manual assembly are acceptable. |
Compared with SMAJ15CA and 1.5KE15CA, SMCG15CAHE3/57T uniquely combines AEC-Q101 qualification, DO-215AB SMT compatibility, 1500 W surge capacity, and MSL Level 1 - making it the sole option for new automotive and high-reliability industrial designs requiring drop-in manufacturability and long-term supply assurance.
Availability
SMCG15CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, and telecom DSL line protection requiring stable component supply, AEC-Q101 compliance, and 1500 W transient immunity.
Supply support for SMCG15CAHE3/57T 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 targets high-energy transient suppression in space-constrained, thermally demanding environments - engineered specifically for automotive, industrial, and telecom systems needing AEC-Q101-qualified, surface-mount TVS solutions.
FAQ
What is the clamping voltage of SMCG15CAHE3/57T under full-rated surge conditions?
The SMCG15CAHE3/57T clamps to a maximum of 24.4 V when subjected to its rated 61.5 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024, ensuring predictable overvoltage protection for downstream ICs in SMCG15CAHE3/57T-based designs.
Is SMCG15CAHE3/57T suitable for automotive applications?
Yes - SMCG15CAHE3/57T is explicitly AEC-Q101 qualified, with test reports covering HTOL, temperature cycling, and mechanical shock. Its DO-215AB package, MSL Level 1 rating, and -55 °C to +150 °C operating range make SMCG15CAHE3/57T compliant for under-hood and cabin-mounted automotive ECUs, ADAS sensors, and infotainment interfaces.
How does the bidirectional design of SMCG15CAHE3/57T affect circuit layout?
The SMCG15CAHE3/57T has no polarity marking and functions identically in both directions, allowing direct placement across differential pairs (e.g., CAN_H/CAN_L) or AC-coupled signal lines without orientation concerns. This simplifies layout, reduces BOM count, and avoids misplacement risk - unlike unidirectional TVS diodes that require strict cathode alignment in SMCG15CAHE3/57T implementations.
What is the thermal resistance of SMCG15CAHE3/57T, and how does it impact power derating?
SMCG15CAHE3/57T 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. At 70 °C ambient, its 6.5 W steady-state power dissipation derates to ~4.3 W - meaning SMCG15CAHE3/57T must be applied in low-duty-cycle surge scenarios or with adequate copper area to maintain TJ ≤ 150 °C.
Does SMCG15CAHE3/57T meet RoHS and halogen-free requirements?
Yes - the "HE3" suffix in SMCG15CAHE3/57T denotes RoHS-compliant construction and AEC-Q101 qualification. It is not halogen-free (that requires "HM3" suffix), but fully complies with JEDEC JS-001 ESD standards, J-STD-020 reflow profile, and Vishay's material categorization per doc# 99912 - confirming SMCG15CAHE3/57T meets global environmental compliance mandates.
SMCG15CAHE3/57T 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 61.5A
- 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)
SMCG15CAHE3/57T FAQ
1.How can I place an order for SMCG15CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG15CAHE3/57T 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 SMCG15CAHE3/57T reliable?
The price and inventory of SMCG15CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG15CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG15CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG15CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG15CAHE3/57T?
SMCG15CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG15CAHE3/57T 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 SMCG15CAHE3/57T?
For technical support, including SMCG15CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG15CAHE3/57T requirements.
6.How does Aetrix verify that SMCG15CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG15CAHE3/57T 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 SMCG15CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG15CAHE3/57T?
All SMCG15CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG15CAHE3/57T, 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 SMCG15CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG15CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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