My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG9.0CAHE3/5B
- Part No.:
- SMBG9.0CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0CAHE3/5B.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,373
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG9.0CAHE3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA test current, 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It is AEC-Q101 qualified and used to protect automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMBG9.0CAHE3/5B datasheet, SMBG9.0CAHE3/5B pinout, SMBG9.0CAHE3/5B application, or SMBG9.0CAHE3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low VC/VBR ratio (1.54), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but triggers into low-impedance conduction when transient voltage exceeds VBR, diverting surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while the bidirectional structure eliminates polarity concerns in AC-coupled or differential lines.
Thermal performance is defined by RθJA = 100 °C/W (on 0.2" × 0.2" pads) and TJ(max) = +150 °C, enabling reliable operation in under-hood automotive environments. The 0.01% duty cycle rating supports repetitive surge handling only at derated power - full 600 W capability applies strictly to single-event transients per JEDEC JESD22-A114.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below VBR. |
| VBR (min/max) | 10.0 V / 11.1 V at IT = 1 mA - Tight 11% tolerance ensures predictable turn-on across production lots. |
| VC @ IPPM | 15.4 V at 39.0 A - Clamping voltage during 10/1000 μs surge; limits protected IC stress to safe levels. |
| PPPM | 600 W - Peak transient power dissipation capability; requires proper PCB copper area for thermal management. |
| IPPM | 39.0 A - Maximum non-repetitive surge current the device can safely clamp without degradation. |
| TJ(max) | +150 °C - Enables use in high-temperature automotive and industrial enclosures without derating. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; supports standard reflow without baking. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Case meets UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge current toward ground or return path during positive transients; symmetric with cathode. |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge current during negative transients; identical electrical behavior to anode due to bidirectional design. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out on PCB. |
| Low clamping ratio (VC/VBR ≈ 1.54) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to protected ICs. |
| MSL Level 1, 260 °C peak reflow | Enables direct placement into standard lead-free reflow profiles without pre-baking or special handling. |
| Glass-passivated junction | Ensures stable leakage current (<1.0 μA at VWM) and long-term reliability under thermal cycling. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver inputs and outputs from ESD (IEC 61000-4-2 ±8 kV) and load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role: Bidirectional shunt clamping element placed directly at connector entry point. Use Value: Maintains signal integrity by limiting transient voltage to ≤15.4 V, preventing transceiver latch-up or permanent damage. |
Use Scenario: Safeguarding RS-485/CAN FD physical layer transceivers in factory automation PLCs exposed to motor switching noise. IC Role / Device Role: Line-side TVS on differential bus pairs (CAN_H/CAN_L) to absorb common-mode surges. Use Value: Symmetrical clamping ensures equal protection for both polarities without requiring external biasing or direction logic. |
| Consumer USB Port ESD Protection | Power Supply Input Stage |
|
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines behind primary polymer fuse or ferrite bead. IC Role / Device Role: Fast-response voltage clamp suppressing sub-100 ns ESD events before they reach USB controller. Use Value: Low VC (15.4 V) prevents overstress of 3.3 V or 5 V USB PHYs while maintaining <1 pF junction capacitance. |
Use Scenario: Overvoltage suppression on 12 V DC input rails feeding buck converters in embedded power modules. IC Role / Device Role: Standoff-rated shunt device absorbing ISO 16750-2 jump-start transients (up to +200 V, 50 ms). Use Value: 9.0 V VWM provides sufficient margin above nominal 12 V rail while clamping spikes to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Same VWM (9.0 V), higher VC (17.5 V at 32.3 A), lower PPPM (600 W same, but lower IPPM rating) | Less effective clamping margin; suitable where layout limits copper area and lower surge current suffices. | Select SMBJ9.0CA only if board space constraints prevent using larger pad areas needed for SMBG's full 39 A rating. |
| SMCJ9.0CA | Same VWM (9.0 V), higher PPPM (1500 W), larger SMC (DO-214AB) package, higher VC (16.7 V at 89.2 A) | Higher energy handling for severe industrial surges; requires larger footprint and thermal relief. | Choose SMCJ9.0CA when system-level testing reveals insufficient margin with 600 W rating, especially for long-duration transients. |
Compared with SMBG9.0CAHE3/5B, SMBJ9.0CA offers smaller footprint but reduced clamping performance, while SMCJ9.0CA delivers higher surge capacity at the cost of PCB area and assembly complexity - SMBG9.0CAHE3/5B balances compactness, AEC-Q101 compliance, and proven 600 W protection in automotive-grade packaging.
Availability
SMBG9.0CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, and consumer USB interface designs requiring stable component supply with AEC-Q101 qualification and RoHS compliance.
Supply support for SMBG9.0CAHE3/5B 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, automotive qualification, and high-volume manufacturability.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in space-constrained automotive and industrial systems, combining AEC-Q101 validation with optimized thermal performance in the DO-215AA outline.
FAQ
What is the clamping voltage of SMBG9.0CAHE3/5B at its rated peak pulse current?
The SMBG9.0CAHE3/5B has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 39.0 A under the standard 10/1000 μs waveform. This value is measured at TA = 25 °C on recommended 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBG9.0CAHE3/5B maintains this clamping performance consistently across its operational temperature range.
Is SMBG9.0CAHE3/5B suitable for automotive applications?
Yes, SMBG9.0CAHE3/5B is AEC-Q101 qualified and explicitly designed for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and guaranteed operation from –55 °C to +150 °C. The "HE3" suffix denotes AEC-Q101 qualification and RoHS compliance, making SMBG9.0CAHE3/5B appropriate for under-hood and cabin-mounted systems requiring certified reliability.
How does the bidirectional configuration of SMBG9.0CAHE3/5B affect its circuit implementation?
The bidirectional configuration of SMBG9.0CAHE3/5B means it provides symmetrical clamping for both positive and negative transients without polarity marking or orientation dependency - ideal for AC-coupled lines, differential buses (e.g., CAN, RS-485), or ungrounded signal paths. Unlike unidirectional TVS diodes, SMBG9.0CAHE3/5B does not require a DC bias reference and functions identically regardless of voltage polarity, simplifying layout and eliminating risk of incorrect placement. This symmetry is confirmed in the datasheet's electrical characteristics table for bidirectional types.
What is the maximum steady-state reverse leakage current for SMBG9.0CAHE3/5B at its stand-off voltage?
At its 9.0 V stand-off voltage (VWM) and TA = 25 °C, the SMBG9.0CAHE3/5B exhibits a maximum reverse leakage current (ID) of 1.0 μA. This low leakage ensures minimal power loss and signal interference in always-on or battery-powered circuits. Leakage remains within specification up to +125 °C, with typical values well below 100 nA at room temperature - critical for precision analog front-ends and low-power IoT sensor nodes protected by SMBG9.0CAHE3/5B.
Does SMBG9.0CAHE3/5B require special PCB layout considerations?
Yes - to achieve its rated 600 W peak pulse power and 39.0 A IPPM, the SMBG9.0CAHE3/5B must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Smaller pads cause excessive junction temperature rise and premature failure. Thermal vias under pads and internal ground planes further improve heat dissipation. The SMBG9.0CAHE3/5B's RθJA of 100 °C/W is valid only with this layout; deviating reduces surge endurance and may invalidate AEC-Q101 stress test margins.
SMBG9.0CAHE3/5B 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 39A
- 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)
SMBG9.0CAHE3/5B FAQ
1.How can I place an order for SMBG9.0CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0CAHE3/5B 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 SMBG9.0CAHE3/5B reliable?
The price and inventory of SMBG9.0CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG9.0CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG9.0CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0CAHE3/5B?
SMBG9.0CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0CAHE3/5B 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 SMBG9.0CAHE3/5B?
For technical support, including SMBG9.0CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0CAHE3/5B requirements.
6.How does Aetrix verify that SMBG9.0CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG9.0CAHE3/5B 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 SMBG9.0CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG9.0CAHE3/5B?
All SMBG9.0CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0CAHE3/5B, 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 SMBG9.0CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBG9.0CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0CAHE3/5B Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
