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Vishay General Semiconductor - Diodes Division SMBJ10CAHM3_A/I
- Part No.:
- SMBJ10CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CAHM3_A/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,706
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Product details
Overview
SMBJ10CAHM3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on signal lines of industrial sensor units and telecom interfaces.
For engineers reviewing the SMBJ10CAHM3_A/I datasheet, SMBJ10CAHM3_A/I pinout, SMBJ10CAHM3_A/I application, or SMBJ10CAHM3_A/I equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker testing.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional CA suffix configuration, enabling suppression of positive and negative transients without polarity dependency. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 µA at VWM), while the 10/1000 µs surge rating reflects standardized lightning and inductive-switching transient immunity per ANSI/IEEE C62.35.
Thermal design relies on RθJL = 20 °C/W (junction-to-lead) and RθJA = 100 °C/W (junction-to-ambient) under standard 0.2" × 0.2" copper pad layout. The device is rated for TJ = –55 °C to +150 °C operation and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line bias margin. |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 1 mA - Confirmed breakdown threshold range ensuring reliable turn-on during transients. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage during 600 W 10/1000 µs surge; determines protected IC's maximum stress level. |
| PPPM | 600 W - Peak transient energy handling capacity; validates suitability for IEC 61000-4-5 Level 3/4 surge tests. |
| ID @ VWM | ≤1.0 µA - Ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max. | +150 °C - Enables deployment in under-hood automotive or high-temperature industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and matte tin-plated leads. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 5.59 mm × 4.06 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Accepts reverse surge current during negative-going transients; symmetrical with cathode in bidirectional mode. |
| Cathode | Transient current entry (positive half-cycle) | Accepts forward surge current during positive-going transients; functionally identical to anode in CA devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 600 W peak pulse power | Supports IEC 61000-4-5 4 kV surge compliance on 50 Ω source impedance test setups. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test plan. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20E material requirements for green manufacturing. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; compatible with high-volume SMT assembly. |
Applications
| Industrial Sensor Interface Protection | Telecom Data Line Surge Suppression |
|---|---|
|
Use Scenario: Protecting RS-485 transceivers and analog sensor outputs (e.g., 4–20 mA loops) from EFT and lightning-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across differential pair or supply rail to limit transient voltage before it reaches the interface IC. Use Value: Maintains signal fidelity by clamping transients to ≤17.0 V while surviving repeated 600 W surges - preventing latch-up or gate oxide damage in protected ICs. |
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from induced surges on twisted-pair telecom infrastructure exposed to outdoor environments. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on line-side ports, coordinated with common-mode chokes and secondary filtering. Use Value: Achieves <1 ns response time and low dynamic impedance to shunt >35 A surge current away from sensitive PHY inputs without signal distortion. |
| Automotive Body Control Module (BCM) | Consumer USB Port ESD Protection |
|
Use Scenario: Safeguarding LIN bus nodes and switch inputs in BCMs against load dump and ISO 7637-2 pulse 1/2/5a transients. IC Role / Device Role / Timing Role: Secondary-level TVS on low-speed communication lines where primary protection resides upstream. Use Value: AEC-Q101 qualification ensures operation at –40 °C to +125 °C ambient and withstands 1000+ thermal cycles without parameter shift. |
Use Scenario: Protecting USB 2.0 D+/D– lines in portable audio devices and smart home hubs from human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor placed immediately adjacent to connector to minimize stub length. Use Value: Sub-1.0 µA leakage at 10 V VWM prevents battery drain in standby mode while clamping 8 kV contact ESD to <20 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA-E3/52 | Same electrical specs and SMB package; RoHS-compliant but not halogen-free or AEC-Q101 qualified. | Preferred for commercial-grade industrial PCBs where automotive qualification is unnecessary. | Select when cost optimization is prioritized and AEC-Q101 or halogen-free compliance is not required. |
| SAC10CA | Same VWM/VBR/VC ratings but in smaller SOD-123FL package; lower PPPM (400 W) and higher RθJA (150 °C/W). | Suitable for space-constrained consumer designs with lower surge exposure profiles. | Choose only if board area is critical and surge threat level is limited to IEC 61000-4-2 ±8 kV ESD, not full 4 kV surge. |
Compared with SMBJ10CAHM3_A/I, the E3/52 variant lacks automotive qualification and halogen-free status but offers identical clamping performance at lower cost, while SAC10CA trades surge robustness and thermal capability for compact size - making SMBJ10CAHM3_A/I optimal for high-reliability, thermally demanding, or automotive-compliant deployments.
Availability
SMBJ10CAHM3_A/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom data line protection, and automotive body control modules requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for SMBJ10CAHM3_A/I 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 SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against inductive switching, EFT, and lightning surges is mission-critical.
FAQ
What does the "CA" suffix indicate in SMBJ10CAHM3_A/I?
The "CA" suffix denotes a bidirectional configuration, meaning SMBJ10CAHM3_A/I provides symmetrical transient voltage suppression for both positive and negative polarity surges. Unlike unidirectional variants (e.g., SMBJ10A), it has no cathode marking and functions identically in either direction - essential for protecting AC-coupled or floating signal paths without polarity constraints.
Is SMBJ10CAHM3_A/I qualified for automotive applications?
Yes, SMBJ10CAHM3_A/I carries the HM3 suffix, confirming it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. This certification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD robustness - validating its use in automotive body control modules, infotainment interfaces, and other non-safety-critical vehicle subsystems.
What is the maximum clamping voltage of SMBJ10CAHM3_A/I under surge conditions?
The maximum clamping voltage (VC) of SMBJ10CAHM3_A/I is 17.0 V at 35.3 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value represents the upper voltage limit imposed on protected circuitry during a 600 W transient event - critical for ensuring downstream ICs remain within their absolute maximum ratings.
How does the SMB (DO-214AA) package of SMBJ10CAHM3_A/I compare thermally to SMA or SMC packages?
SMBJ10CAHM3_A/I in SMB (DO-214AA) offers RθJA = 100 °C/W and RθJL = 20 °C/W under standard 0.2" × 0.2" copper pads - balancing footprint size and thermal performance. It delivers better heat dissipation than SMA (RθJA ≈ 140 °C/W) but less than SMC (RθJA ≈ 65 °C/W), making it ideal for medium-power surge protection where board space and thermal margin must be jointly optimized.
Can SMBJ10CAHM3_A/I replace SMBJ10A in an existing design?
No - SMBJ10CAHM3_A/I is bidirectional while SMBJ10A is unidirectional, with distinct polarity marking and forward conduction behavior. Substituting them requires verifying circuit topology: SMBJ10CAHM3_A/I may be used only where symmetrical clamping is needed and no DC bias polarity dependency exists; otherwise, reverse leakage and forward voltage characteristics will differ significantly.
SMBJ10CAHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ10CAHM3_A/I FAQ
1.How can I place an order for SMBJ10CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CAHM3_A/I 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 SMBJ10CAHM3_A/I reliable?
The price and inventory of SMBJ10CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ10CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CAHM3_A/I?
SMBJ10CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CAHM3_A/I 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 SMBJ10CAHM3_A/I?
For technical support, including SMBJ10CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CAHM3_A/I requirements.
6.How does Aetrix verify that SMBJ10CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ10CAHM3_A/I 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 SMBJ10CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ10CAHM3_A/I?
All SMBJ10CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CAHM3_A/I, 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 SMBJ10CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMBJ10CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10CAHM3_A/I Tags
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