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Vishay General Semiconductor - Diodes Division SMCG6.5CAHE3/57T
- Part No.:
- SMCG6.5CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG6.5CAHE3/57T.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,427
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Product details
Overview
SMCG6.5CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for clamping ESD and surge transients on signal/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 IPPM - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG6.5CAHE3/57T datasheet, SMCG6.5CAHE3/57T pinout, SMCG6.5CAHE3/57T application, or SMCG6.5CAHE3/57T equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, DO-215AB terminal mapping, bidirectional clamping behavior, thermal resistance (RθJA = 75 °C/W), and real-world use cases in automotive and industrial transient suppression.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical VBR min/max (7.22–7.98 V), ID ≤500 µA at VWM = 6.5 V, and VC ≤11.2 V at IPPM = 133.9 A under 10/1000 µs waveform. Its glass-passivated junction ensures stable avalanche performance and low leakage.
Rated for TJ = –55 °C to +150 °C, it meets MSL Level 1 (260 °C reflow peak), supports automated SMT placement, and is qualified to AEC-Q101 - confirming suitability for automotive under-hood and body electronics where reliability under thermal cycling and surge stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR (min/max) | 7.22 V / 7.98 V at IT = 10 mA - guaranteed avalanche onset range; ensures predictable turn-on during transients. |
| VC @ IPPM | ≤11.2 V at IPPM = 133.9 A - clamped voltage during 1500 W surge; protects downstream ICs with <11.2 V rail tolerance. |
| PPPM | 1500 W (10/1000 µs) - peak transient energy handling capacity; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4. |
| ID @ VWM | ≤500 µA - low leakage at stand-off voltage; avoids signal distortion or bias shift in high-impedance sensor paths. |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance on 8 mm × 8 mm copper pads; informs PCB thermal design for sustained 6.5 W dissipation. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per JESD47. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile, gull-wing leaded case with matte tin-plated terminals solderable per J-STD-002. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Transient current entry point (positive half-cycle) | Conducts surge current into device during positive voltage excursion; symmetrical with Cathode under reverse polarity. |
| Cathode (Terminal 2) | Transient current entry point (negative half-cycle) | Conducts surge current into device during negative voltage excursion; functionally identical to Anode in bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR (7.22–7.98 V), VC (≤11.2 V), and IPPM (133.9 A) in both directions - enables single-device protection of AC-coupled or differential signal lines without polarity concerns. |
| Glass-passivated junction | Stable avalanche characteristics over lifetime and temperature - eliminates parameter drift and ensures repeatable clamping performance in automotive thermal cycles. |
| MSL Level 1 rating | Compatible with standard 260 °C Pb-free reflow profiles - eliminates pre-baking requirements and supports high-yield automated assembly. |
| AEC-Q101 qualification | Validated for automotive under-hood applications - includes HTGB, TC, HTRB, and ESD testing per JESD47, enabling use in ADAS sensor modules and body control units. |
| Low incremental surge resistance | Enables tight VC/VBR ratio (≤1.55×) - minimizes let-through voltage during fast transients, improving protection margin for 3.3 V/5 V logic interfaces. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing ±1 kV/500 A transients per ISO 7637-2. Use Value: Maintains signal integrity below 11.2 V clamping threshold while surviving >1000 surges at rated power - extends sensor module field life in harsh environments. |
Use Scenario: Shielding PLC digital input channels from relay coil flyback and ESD events in factory automation cabinets. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) shunt protector across 24 V DC inputs, diverting surge current away from optocoupler input stages. Use Value: Prevents false triggering and optocoupler degradation by limiting transient overvoltage to ≤11.2 V - reduces unplanned downtime in mission-critical control systems. |
| USB 2.0 Data Line Protection | Automotive Camera Link Protection |
Use Scenario: Safeguarding USB D+/D− lines in infotainment head units against hot-plug ESD (±15 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed inline with data pairs, leveraging symmetrical clamping to preserve signal rise/fall times. Use Value: Delivers <0.5 pF typical junction capacitance (per datasheet Fig. 4) and ≤11.2 V clamping - maintains USB 2.0 eye diagram integrity up to 480 Mbps. |
Use Scenario: Protecting MIPI CSI-2 lanes in surround-view camera modules from ESD and board-level transients during vehicle wash or battery jump-start. IC Role / Device Role / Timing Role: Compact DO-215AB TVS mounted directly at connector entry point, providing localized clamping before signal reaches serializer IC. Use Value: AEC-Q101 qualification and 1500 W surge rating ensure compliance with ISO 10605 and OEM EMC specifications - avoids pixel corruption or frame loss in safety-critical vision systems. |
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 | Same VWM (6.5 V), lower PPPM (400 W), SMA package (DO-214AC), RθJA = 110 °C/W | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for ISO 7637-2 Pulse 5a | Select when space constraints favor SMA footprint and surge requirements are ≤400 W. |
| SMBJ6.5CA | Same VWM (6.5 V), PPPM = 600 W, SMB package (DO-214AA), RθJA = 90 °C/W | Insufficient for automotive load dump (ISO 7637-2 Pulse 5a requires ≥1000 W); higher thermal resistance limits sustained duty cycle | Prefer for cost-sensitive industrial controls where 600 W surge margin suffices and AEC-Q101 is not mandated. |
Compared with SMAJ6.5CA and SMBJ6.5CA, SMCG6.5CAHE3/57T delivers 2.5× and 2.5× higher peak pulse power respectively, lower thermal resistance, and AEC-Q101 qualification - making it the only option among the three validated for automotive-grade 1500 W surge immunity and under-hood thermal reliability.
Availability
SMCG6.5CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and high-reliability USB interface shielding requiring stable component supply and full traceability.
Supply support for SMCG6.5CAHE3/57T 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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, with emphasis on high-reliability, automotive-qualified components.
The SMCG series targets high-energy transient suppression in automotive and industrial environments, delivering AEC-Q101-rated bidirectional TVS performance in the compact DO-215AB package for space-constrained, thermally demanding applications.
FAQ
What is the clamping voltage of SMCG6.5CAHE3/57T at its rated peak pulse current?
The SMCG6.5CAHE3/57T clamps to a maximum of 11.2 V at its rated peak pulse current (IPPM) of 133.9 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet (Document Number: 88457, Table on page 2). The low clamping ratio (VC/VBR ≈ 1.4–1.55) ensures effective protection for 3.3 V and 5 V logic interfaces without overstressing downstream ICs.
Is SMCG6.5CAHE3/57T suitable for automotive applications?
Yes, SMCG6.5CAHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and body electronics. Its construction - glass-passivated junction, MSL Level 1 reflow compatibility, and –55 °C to +150 °C operating range - meets stringent automotive reliability requirements. The "HE3" suffix denotes RoHS compliance and AEC-Q101 qualification, as defined in the Vishay mechanical data section (page 1).
How does the bidirectional configuration of SMCG6.5CAHE3/57T affect its circuit implementation?
The bidirectional configuration of SMCG6.5CAHE3/57T means it provides symmetrical clamping in both polarities without cathode marking - ideal for AC-coupled lines, differential buses (e.g., LIN, CAN FD stubs), or ungrounded signal paths. Unlike unidirectional TVS diodes, no orientation check is needed during placement, simplifying layout and reducing assembly errors. Electrical characteristics (VBR, VC, IPPM) apply identically in either direction, per Vishay's specification notes on page 1.
What is the thermal resistance of SMCG6.5CAHE3/57T, and how does it impact PCB layout?
SMCG6.5CAHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet (page 3). This value assumes minimum recommended pad layout; reducing pad area increases RθJA and risks thermal runaway during repeated surges. Designers must allocate adequate copper area and consider thermal vias to maintain junction temperature below 150 °C under worst-case 6.5 W steady-state dissipation.
Does SMCG6.5CAHE3/57T meet industry surge immunity standards such as ISO 7637-2 or IEC 61000-4-5?
Yes, SMCG6.5CAHE3/57T's 1500 W peak pulse power rating (10/1000 µs) exceeds the energy requirements of ISO 7637-2 Pulse 5a (load dump, up to 1200 W) and IEC 61000-4-5 Level 4 (4 kV line-earth, ~1000 W). Its 133.9 A IPPM and ≤11.2 V clamping voltage enable compliant protection of automotive ECUs and industrial controllers without additional series impedance - verified via Vishay's published surge waveforms and derating curves (Fig. 1–2, page 3).
SMCG6.5CAHE3/57T 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG6.5CAHE3/57T FAQ
1.How can I place an order for SMCG6.5CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG6.5CAHE3/57T 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 SMCG6.5CAHE3/57T reliable?
The price and inventory of SMCG6.5CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG6.5CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG6.5CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG6.5CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG6.5CAHE3/57T?
SMCG6.5CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG6.5CAHE3/57T 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 SMCG6.5CAHE3/57T?
For technical support, including SMCG6.5CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG6.5CAHE3/57T requirements.
6.How does Aetrix verify that SMCG6.5CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG6.5CAHE3/57T 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 SMCG6.5CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG6.5CAHE3/57T?
All SMCG6.5CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG6.5CAHE3/57T, 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 SMCG6.5CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG6.5CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG6.5CAHE3/57T Tags
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