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Vishay General Semiconductor - Diodes Division SMBG36CAHE3/5B
- Part No.:
- SMBG36CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG36CAHE3/5B.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,578
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Product details
Overview
SMBG36CAHE3/5B 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 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), 10.3 A peak pulse current (IPPM), and 58.1 V maximum clamping voltage (VC) - deployed in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the SMBG36CAHE3/5B datasheet, SMBG36CAHE3/5B pinout, SMBG36CAHE3/5B application, or SMBG36CAHE3/5B equivalent, key selection criteria include bidirectional surge capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.42), 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 across both polarities, with identical VBR, VC, and IPPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The device is rated for 600 W peak pulse power under 10/1000 µs waveform at 0.01 % duty cycle, derated linearly above 25 °C ambient per Fig. 2, and exhibits typical thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead) - critical for thermal management in high-density PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse working voltage before clamping begins |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - guaranteed breakdown threshold defining turn-on precision |
| VC @ IPPM | 58.1 V - clamped voltage during 10.3 A transient, limiting downstream IC stress |
| IPPM | 10.3 A - peak surge current survivable under standardized 10/1000 µs waveform |
| PPPM | 600 W - transient energy absorption capacity without failure |
| TJ range | −55 °C to +150 °C - operational junction temperature window supporting automotive under-hood use |
| Leakage @ VWM | <1.0 µA - minimal standby power loss and signal integrity impact |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing lead form, RoHS-compliant matte tin plating, MSL Level 1 (260 °C peak reflow), AEC-Q101 qualified. Dimensions: 6.48 mm × 3.94 mm × 2.10 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A | Bidirectional conduction path - no polarity marking; symmetrical operation relative to cathode |
| Cathode | Terminal K | Bidirectional conduction path - no polarity marking; symmetrical operation relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Glass passivated junction | Enhanced long-term stability and reduced parameter drift under thermal stress |
| 600 W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4 kV surge) compliance in properly designed circuits |
| Low clamping ratio (VC/VBR) | ≈1.42 - tight voltage control minimizes overvoltage exposure to protected ICs |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking, reducing manufacturing overhead |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role: Bidirectional clamping element placed between signal line and ground, absorbing transients before they reach sensitive input circuitry. Use Value: Maintains signal integrity during 12 V/24 V vehicle system surges while meeting AEC-Q101 requirements for under-hood deployment. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges and electrostatic discharge in factory automation environments. IC Role / Device Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series impedance and filtering. Use Value: Enables reliable operation in harsh electromagnetic environments with repeatable 600 W surge handling and <1 µA leakage at 36 V nominal. |
| Telecom Line Protection | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY interface pins and PoE detection circuitry from lightning-induced common-mode surges on unshielded twisted-pair cabling. IC Role / Device Role: Bidirectional TVS placed differential-mode across data pairs and common-mode to chassis ground. Use Value: Provides sub-1 ns response and symmetrical clamping to preserve signal timing margins while surviving repeated 10/1000 µs transients. | Use Scenario: Secondary-level surge suppression on AC-DC adapter primary-side rectifier output or secondary-side 5–12 V rails. IC Role / Device Role: Standoff-clamp device shunting transient energy to ground during mains-borne surges or capacitor discharge events. Use Value: Delivers precise 36 V hold-off and 58.1 V clamping to prevent overvoltage damage to downstream regulators and USB controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA-E3/5B | Same VWM (36 V), lower PPPM (600 W → 600 W), but higher VC (63.0 V vs. 58.1 V); SMB (DO-214AA) package, slightly larger footprint | Less stringent clamping performance; suitable where board space allows larger package | Select SMBJ36CA-E3/5B only if SMBG footprint is unavailable and 5.0 V higher clamping voltage is acceptable. |
| SMCJ36CAHE3/5B | Same VWM and VBR, but higher PPPM (1500 W), larger SMC (DO-214AB) package, higher thermal mass | Targeted at higher-energy surge environments (e.g., outdoor telecom, industrial motor drives) | Choose SMCJ36CAHE3/5B when system-level surge testing exceeds IEC 61000-4-5 Level 4 or requires extended thermal endurance. |
Compared with SMBJ36CA-E3/5B and SMCJ36CAHE3/5B, SMBG36CAHE3/5B delivers optimal balance of compact SMBG footprint, AEC-Q101 qualification, and lowest clamping voltage (58.1 V) - making it preferred for space-constrained automotive and industrial edge nodes requiring precise voltage limiting.
Availability
SMBG36CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and consistent surge performance across production lots.
Supply support for SMBG36CAHE3/5B 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 SMBG TransZORB® series is engineered for high-reliability transient suppression in automotive, industrial, and telecom systems - prioritizing low clamping ratio, AEC-Q101 qualification, and robust SMT manufacturability.
FAQ
What is the clamping voltage of SMBG36CAHE3/5B at its rated peak pulse current?
The SMBG36CAHE3/5B has a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 10.3 A under the 10/1000 µs waveform. This value is measured per JEDEC standards and reflects the upper limit of voltage seen by protected circuitry during worst-case transient events - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings. The SMBG36CAHE3/5B achieves this with a clamping ratio of approximately 1.42 relative to its minimum VBR.
Is SMBG36CAHE3/5B suitable for automotive applications?
Yes, SMBG36CAHE3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its −55 °C to +150 °C operating junction temperature range, glass-passivated junction, and validation across temperature cycling, high-temperature reverse bias (HTRB), and ESD tests confirm suitability for engine control units, body electronics, and ADAS sensor interfaces. The SMBG36CAHE3/5B meets requirements for ISO 7637-2 pulse 1, 2a, 3a/b, and IEC 61000-4-5 surge immunity when implemented with appropriate PCB layout.
How does the bidirectional configuration of SMBG36CAHE3/5B affect its circuit implementation?
The bidirectional configuration of SMBG36CAHE3/5B means it provides symmetrical clamping in both polarities - no cathode band marking is present, and terminals are functionally interchangeable. This eliminates polarity concerns during layout and enables use in AC-coupled or differential signal paths (e.g., RS-485, CAN, Ethernet). Unlike unidirectional TVS diodes, SMBG36CAHE3/5B does not conduct during normal forward bias; instead, it clamps equally for positive and negative transients relative to ground, simplifying protection design for balanced interfaces.
What is the thermal resistance of SMBG36CAHE3/5B, and how does it impact PCB layout?
SMBG36CAHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain reliability during repetitive surges, PCB layout must provide adequate copper area and thermal vias to minimize junction temperature rise. Reducing RθJA via enhanced copper pour directly extends surge lifetime and improves derating margin - especially important in enclosed enclosures or high-ambient-temperature deployments of SMBG36CAHE3/5B.
Does SMBG36CAHE3/5B require special handling or packaging considerations for SMT assembly?
No special handling is required beyond standard J-STD-020 Level 1 moisture sensitivity precautions - SMBG36CAHE3/5B is rated MSL Level 1 with a maximum peak reflow temperature of 260 °C, allowing direct placement into standard lead-free reflow profiles without pre-baking. Its matte tin-plated gull-wing leads comply with J-STD-002 and JESD 22-B102 solderability standards, and whisker resistance is certified to JESD 201 Class 2. The SMBG36CAHE3/5B's DO-215AA outline supports high-speed automated pick-and-place with verified coplanarity and lead geometry.
SMBG36CAHE3/5B 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMBG36CAHE3/5B FAQ
1.How can I place an order for SMBG36CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG36CAHE3/5B 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 SMBG36CAHE3/5B reliable?
The price and inventory of SMBG36CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG36CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG36CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG36CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG36CAHE3/5B?
SMBG36CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG36CAHE3/5B 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 SMBG36CAHE3/5B?
For technical support, including SMBG36CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG36CAHE3/5B requirements.
6.How does Aetrix verify that SMBG36CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG36CAHE3/5B 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 SMBG36CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG36CAHE3/5B?
All SMBG36CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG36CAHE3/5B, 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 SMBG36CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBG36CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG36CAHE3/5B Tags
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