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Vishay General Semiconductor - Diodes Division SMBG90CAHE3/52
- Part No.:
- SMBG90CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG90CAHE3/52.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,337
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Product details
Overview
SMBG90CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal or power lines. It features 90 V stand-off voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBG90CAHE3/52 datasheet, SMBG90CAHE3/52 pinout, SMBG90CAHE3/52 application, or SMBG90CAHE3/52 equivalent, key selection criteria include bidirectional surge clamping capability, AEC-Q101 qualification, low leakage (<1.0 μA at VWM), junction temperature range (–55 °C to +150 °C), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR (100–111 V), VC (146 V), and IPPM (4.1 A) specifications for positive and negative transients. Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance under repetitive 10/1000 μs surges at 0.01% duty cycle.
The device meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports matte tin-plated leads per J-STD-002, and is qualified to AEC-Q101 for automotive under-hood and chassis applications - enabling direct integration into CAN, LIN, and sensor supply rail protection without polarity marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 72–90 V nominal systems. |
| VBR (min/max) | 100 V / 111 V at 1 mA - Confirmed breakdown threshold range ensures reliable turn-on during fast transients without premature conduction. |
| VC @ IPPM | 146 V at 4.1 A - Clamped voltage during 10/1000 μs surge; limits downstream IC stress to <150 V in 12/24 V automotive environments. |
| PPPM | 600 W - Peak pulse power handling capacity; sustains single or repetitive surges per ISO 7637-2 Pulse 1/2a/5a test profiles. |
| ID @ VWM | <1.0 μA - Ultra-low reverse leakage preserves signal integrity and battery drain in always-on circuits like CAN wake-up lines. |
| TJ Range | –55 °C to +150 °C - Full operational range supports engine control units, ADAS modules, and industrial PLCs without derating. |
| Package | SMBG (DO-215AA) - Surface-mount outline with 0.235" × 0.255" footprint; compatible with standard 7" tape-and-reel (750 pcs) delivery mode. |
Pinout & Package
Two-terminal bidirectional device in SMBG (DO-215AA) package; no polarity marking required. Terminals are matte tin-plated leads solderable per J-STD-002, with thermal resistance RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads) and RθJL = 20 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical avalanche behavior in both directions; connects across protected line and ground (or between differential lines) without orientation dependency. |
| Case (body) | Thermal and mechanical interface | Plastic molding meets UL 94 V-0; provides mechanical anchoring and heat dissipation path to PCB copper pads. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for ECU, body control, and ADAS modules. |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a (500 V/2 Ω) surges without degradation when mounted on recommended 5.0 mm × 5.0 mm pads. |
| Glass-passivated junction | Ensures stable VBR tolerance (±10%), low leakage drift over time, and immunity to humidity-induced parameter shift. |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without popcorn cracking or delamination - eliminates pre-bake requirements in high-volume SMT lines. |
| Bidirectional symmetry | Eliminates need for polarity-aware layout; simplifies design of differential bus protection (e.g., RS-485, CAN FD) and AC-coupled sensor inputs. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor output and microcontroller ADC input, referenced to chassis ground. Use Value: Limits transient excursions to ≤146 V while maintaining <1.0 μA leakage - preserving 12-bit ADC accuracy and preventing MCU reset during cranking events. |
Use Scenario: Guarding 24 V DC digital input channels on PLC backplanes against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary surge shunt across input terminal and common rail, absorbing energy before it reaches optocoupler or Schmitt trigger input stage. Use Value: Clamps 1 kV/50 Ω ring wave transients to safe levels within <1 ns response time, enabling >100,000 surge cycles without parameter shift. |
| Automotive CAN Bus Protection | Consumer Appliance Power Supply |
|
Use Scenario: Secondary-level protection on CAN_H/CAN_L lines downstream of common-mode chokes in telematics control units. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to ground, suppressing ESD and coupled transients without affecting 1 Mbps signaling integrity. Use Value: Junction capacitance <100 pF at 0 V bias ensures minimal signal rise-time degradation; AEC-Q101 qualification guarantees lifetime reliability in 15-year vehicle programs. |
Use Scenario: Input-stage surge suppression on 90–264 VAC SMPS front-ends in washing machines and HVAC controllers subjected to mains-borne surges. IC Role / Device Role / Timing Role: Line-to-ground clamping device across bridge rectifier output, diverting energy from bulk capacitor and PFC controller. Use Value: Withstands 600 W pulses without thermal runaway; RoHS-compliant HE3 suffix ensures compliance with EU EcoDesign Directive for household appliances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA-E3/52 | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package (SMB, DO-214AA); slightly larger footprint (0.265" × 0.205") and higher RθJA (110 °C/W). | Less suitable for space-constrained automotive modules; requires pad layout revision due to different terminal spacing and body width. | Select SMBJ90CA-E3/52 only if existing SMB footprint is standardized and thermal margin allows 10 °C/W higher junction-to-ambient resistance. |
| SMCJ90CAHE3/52 | Higher PPPM = 1500 W, same VWM/VBR/VC, larger SMC (DO-214AB) package; RθJA = 40 °C/W on same pad size - enables higher surge repetition rates. | Over-specified for most 12/24 V systems; occupies >2× PCB area and increases BOM cost where 600 W is sufficient per ISO 16750-2. | Choose SMCJ90CAHE3/52 only for heavy-duty commercial vehicle applications requiring >1000 surges/hour or combined lightning + load-dump testing. |
Compared with SMBJ90CA-E3/52, SMBG90CAHE3/52 offers tighter board space utilization and better thermal performance in compact automotive modules; versus SMCJ90CAHE3/52, it delivers optimal cost-performance balance for standard 600 W surge requirements without over-engineering PCB real estate.
Availability
SMBG90CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, CAN bus guard circuits, and consumer appliance power supplies requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBG90CAHE3/52 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, efficiency, and application-specific optimization.
The SMBG series targets high-reliability transient suppression in space-constrained automotive and industrial environments, combining AEC-Q101 qualification, low-profile packaging, and precise clamping performance for next-generation ECUs and smart sensors.
FAQ
What is the clamping voltage of SMBG90CAHE3/52 at its rated peak pulse current?
The SMBG90CAHE3/52 has a maximum clamping voltage (VC) of 146 V at its rated peak pulse current (IPPM) of 4.1 A, measured using the standard 10/1000 μs double-exponential waveform. This value ensures protected circuitry remains below critical voltage thresholds during ISO 7637-2 compliant transients. The SMBG90CAHE3/52 maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBG90CAHE3/52 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, SMBG90CAHE3/52 carries the HE3 suffix, which explicitly denotes AEC-Q101 qualification per Vishay's ordering nomenclature. It has passed stress tests including temperature cycling, high-temperature reverse bias, and surge endurance required for under-hood and chassis-mounted electronics. The SMBG90CAHE3/52 is approved for use in engine control units, ADAS camera modules, and body electronics where long-term reliability under thermal and electrical stress is mandatory.
How does the SMBG90CAHE3/52 differ from unidirectional variants like SMBG90AHE3/52?
The SMBG90CAHE3/52 is bidirectional, meaning it clamps voltage transients equally in both polarities with symmetrical VBR and VC characteristics, whereas SMBG90AHE3/52 is unidirectional and conducts only in reverse bias (cathode-to-anode). The "CA" suffix confirms bidirectional functionality, eliminating polarity marking and enabling use in AC-coupled or differential signal paths. The SMBG90CAHE3/52 also omits the cathode band marking present on unidirectional versions.
What is the maximum reverse leakage current of SMBG90CAHE3/52 at its stand-off voltage?
The SMBG90CAHE3/52 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 90 V, tested at 25 °C. This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-backed systems. The SMBG90CAHE3/52 maintains leakage <5.0 μA up to +125 °C, supporting operation in demanding thermal environments.
Does SMBG90CAHE3/52 require special PCB layout considerations for thermal performance?
Yes - optimal thermal performance for SMBG90CAHE3/52 requires mounting on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay's datasheet. Smaller pads increase junction temperature by up to 30 °C under surge conditions, risking parametric shift or failure. The SMBG90CAHE3/52 achieves RθJA = 100 °C/W only with this pad layout; internal copper planes and thermal vias further improve sustained surge handling in production designs.
SMBG90CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBG)
SMBG90CAHE3/52 FAQ
1.How can I place an order for SMBG90CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG90CAHE3/52 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 SMBG90CAHE3/52 reliable?
The price and inventory of SMBG90CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG90CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG90CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG90CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG90CAHE3/52?
SMBG90CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG90CAHE3/52 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 SMBG90CAHE3/52?
For technical support, including SMBG90CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG90CAHE3/52 requirements.
6.How does Aetrix verify that SMBG90CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG90CAHE3/52 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 SMBG90CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG90CAHE3/52?
All SMBG90CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG90CAHE3/52, 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 SMBG90CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG90CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG90CAHE3/52 Tags
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