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Vishay General Semiconductor - Diodes Division SMBJ5.0CAHM3/H
- Part No.:
- SMBJ5.0CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0CAHM3/H.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,219
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Product details
Overview
SMBJ5.0CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features 5.0 V stand-off voltage (VWM), 6.4–7.25 V breakdown range (VBR), 600 W peak pulse power (10/1000 µs), <1 µA reverse leakage at VWM, and clamps to ≤9.2 V at 65.2 A peak surge current - deployed in sensor interface protection for automotive ECUs and industrial I/O modules.
For engineers reviewing the SMBJ5.0CAHM3/H datasheet, SMBJ5.0CAHM3/H pinout, SMBJ5.0CAHM3/H application, or SMBJ5.0CAHM3/H equivalent, this page delivers verified electrical parameters, JEDEC-compliant SMB package details, bidirectional clamping behavior, AEC-Q101 qualification status, and direct alternatives with documented parameter divergence - all validated against Vishay Document #88392 (Rev. 09-Jan-2024).
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction enables fast response (<1 ns), low incremental surge resistance, and stable clamping under repetitive 0.01% duty-cycle surges.
Designed for mounting on 5.0 mm × 5.0 mm copper pads, it achieves 600 W peak pulse power per 10/1000 µs waveform while maintaining thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before clamping initiates; defines safe signal line bias margin. |
| VBR min/max | 6.4 V / 7.25 V - guaranteed breakdown range at 10 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | ≤9.2 V at 65.2 A - clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W - peak pulse power handling capability; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | <1 µA - reverse leakage at rated stand-off voltage; minimizes quiescent power loss in battery-powered sensors. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts negative-going surges; forms one side of symmetrical clamping path. |
| Cathode | Transient current entry (positive polarity) | Accepts positive-going surges; completes bidirectional conduction path with anode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 600 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive interfaces. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
| Halogen-free & RoHS-compliant | Complies with EU Directive 2011/65/EU and IPC-1752A material declaration requirements. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity precautions. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and position sensor outputs from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector interface to limit transient voltage before reaching downstream PHY ICs. Use Value: Clamps 10/1000 µs surges to ≤9.2 V, preserving signal integrity and preventing latch-up in 3.3 V/5 V sensor signal chains. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage protector across input terminals, shunting surge energy away from precision op-amps and ADC front-ends. Use Value: Withstands 600 W pulses while adding <1 µA leakage, avoiding zero-point drift in high-impedance current sense paths. |
| Consumer USB Port ESD | Telecom Line Interface |
Use Scenario: Secondary-level ESD protection for USB 2.0 data lines in set-top boxes and smart displays subjected to IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Fast-response clamping device placed after primary polymer-based TVS to handle residual high-energy transients. Use Value: Sub-1 ns response time and ≤9.2 V clamping prevent damage to USB transceiver I/O cells during multi-kV events. |
Use Scenario: Overvoltage protection on telephone line interface circuits in VoIP gateways and PBX systems facing lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated protector across tip/ring lines, absorbing longitudinal surges up to 600 W without degradation. Use Value: Stable 5.0 V VWM allows integration into legacy analog telephony designs without altering bias networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CAHE3/H | Same electrical specs; RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification. | Approved for commercial/industrial use only; excluded from automotive production BOMs requiring halogen-free compliance. | Select when halogen-free content is not mandated and cost optimization is prioritized over automotive qualification. |
| SMAJ5.0CA | Lower PPPM (400 W); larger VBR tolerance (6.4–8.0 V); SMA package (smaller thermal mass). | Insufficient for IEC 61000-4-5 Level 4; limited to lower-energy surge environments like consumer peripherals. | Choose only for space-constrained designs where 400 W rating suffices and thermal derating is acceptable. |
Compared with SMBJ5.0CAHM3/H, SMBJ5.0CAHE3/H omits halogen-free certification and automotive qualification but matches all electrical parameters, while SMAJ5.0CA reduces surge capacity by 33 % and increases clamping uncertainty - making SMBJ5.0CAHM3/H the sole option meeting full AEC-Q101, halogen-free, and 600 W requirements simultaneously.
Availability
SMBJ5.0CAHM3/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC analog input protection, and telecom line interface hardening requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ5.0CAHM3/H 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 and application-specific performance.
The SMBJ series targets high-reliability transient suppression in automotive, industrial, and communications infrastructure - engineered for robust surge handling, low clamping voltage, and extended temperature operation.
FAQ
What does the "HM3" suffix indicate in SMBJ5.0CAHM3/H?
The HM3 suffix in SMBJ5.0CAHM3/H denotes halogen-free, RoHS-compliant construction with full AEC-Q101 qualification. It confirms compliance with automotive reliability standards including temperature cycling, highly accelerated life testing, and electrostatic discharge immunity - distinguishing it from commercial-grade variants like E3 or HE3.
Is SMBJ5.0CAHM3/H unidirectional or bidirectional?
SMBJ5.0CAHM3/H is a bidirectional TVS diode, as confirmed by the "CA" suffix and absence of cathode band marking. Its symmetrical breakdown characteristics (VBR = 6.4–7.25 V in both directions) enable protection of AC-coupled or floating signal paths without polarity orientation constraints during PCB placement.
What is the maximum clamping voltage for SMBJ5.0CAHM3/H at rated surge current?
The maximum clamping voltage (VC) for SMBJ5.0CAHM3/H is 9.2 V at 65.2 A peak pulse current (IPPM), measured under the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events and is guaranteed across the full operating temperature range.
Does SMBJ5.0CAHM3/H meet automotive qualification standards?
Yes, SMBJ5.0CAHM3/H is explicitly AEC-Q101 qualified per Vishay Document #88392. This certification covers stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - validating its suitability for under-hood and chassis-mounted automotive applications requiring long-term reliability.
How does SMBJ5.0CAHM3/H differ from SMBJ5.0A (unidirectional)?
SMBJ5.0CAHM3/H is bidirectional with symmetrical clamping and no polarity marking, whereas SMBJ5.0A is unidirectional with a cathode band and forward voltage drop (VF ≤ 3.5 V at 50 A). The CA version supports AC signal protection; the A version suits DC-biased lines where forward conduction must be controlled - they are not interchangeable without circuit redesign.
SMBJ5.0CAHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- 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)
SMBJ5.0CAHM3/H FAQ
1.How can I place an order for SMBJ5.0CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0CAHM3/H 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 SMBJ5.0CAHM3/H reliable?
The price and inventory of SMBJ5.0CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMBJ5.0CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0CAHM3/H?
SMBJ5.0CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0CAHM3/H 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 SMBJ5.0CAHM3/H?
For technical support, including SMBJ5.0CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0CAHM3/H requirements.
6.How does Aetrix verify that SMBJ5.0CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0CAHM3/H 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 SMBJ5.0CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMBJ5.0CAHM3/H?
All SMBJ5.0CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0CAHM3/H, 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 SMBJ5.0CAHM3/H part is unused and in its original packaging.
Return procedure for SMBJ5.0CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0CAHM3/H Tags
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