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Vishay General Semiconductor - Diodes Division SMBJ16CHE3/52
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- Part No.:
- SMBJ16CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CHE3/52.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,751
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Product details
Overview
SMBJ16CHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives.
For engineers reviewing the SMBJ16CHE3/52 datasheet, SMBJ16CHE3/52 pinout, SMBJ16CHE3/52 application, or SMBJ16CHE3/52 equivalent, this device is selected for high-reliability surge suppression where AEC-Q101 qualification, low clamping ratio, and stable thermal performance up to +150 °C junction temperature are required.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, activated when reverse voltage exceeds its VBR threshold. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ps), enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes.
The device is rated for 100 A non-repetitive forward surge current (IFSM) and exhibits low incremental surge resistance - critical for minimizing voltage overshoot during high-current transients. Thermal resistance is specified at RθJA = 100 °C/W (on 0.2" × 0.2" copper pads), supporting operation across -55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - guaranteed avalanche onset window; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 26.0 V at 23.1 A - clamped voltage under 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W - peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV) surge compliance with proper layout. |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage; avoids parasitic loading on low-power sensor or battery-backed circuits. |
| TJ max. | +150 °C - maximum junction temperature; enables use in under-hood automotive and industrial power-conversion environments. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line (e.g., VCC or signal); conducts surge current to ground during overvoltage event. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path and defines unidirectional polarity. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 surges up to 4 kV without external series impedance. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS power domains. |
| Low clamping voltage (26.0 V @ 23.1 A) | Clamping ratio VC/VWM = 1.625 - minimizes stress on downstream 16 V-rated ICs such as gate drivers or MCU I/O. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under humidity, thermal cycling, and high-temperature bias stress. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT assembly processes without moisture sensitivity concerns or baking requirements. |
Applications
| Industrial Motor Drives | Automotive Power Distribution |
|---|---|
|
Use Scenario: Protection of MOSFET gate drivers and microcontroller supply rails against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VDD and GND, absorbing 600 W transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic supplies while maintaining <1.0 µA standby leakage. |
Use Scenario: Surge suppression on 12 V battery-fed ECUs in passenger vehicles, including HVAC controllers and lighting modules. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input, certified to AEC-Q101 and ISO 7637-2 Pulse 5a. Use Value: Withstands repeated load-dump events up to 35 V and meets automotive EMC immunity requirements without derating. |
| Telecom Power Interfaces | Consumer Sensor Signal Lines |
|
Use Scenario: Input protection for PoE-powered equipment (e.g., IP cameras, access points) exposed to Ethernet cable-induced surges. IC Role / Device Role / Timing Role: Front-end TVS on DC input stage, coordinated with upstream fuse and common-mode chokes. Use Value: Clamps 10/1000 µs surges to ≤26.0 V, preserving integrity of 24 V DC-DC converters and isolated data interfaces. |
Use Scenario: ESD and fast-transient protection for analog sensor outputs (e.g., temperature, pressure) in smart home hubs and wearables. IC Role / Device Role / Timing Role: Localized TVS on PCB traces between sensor IC and ADC input, minimizing trace inductance. Use Value: Sub-1.0 µA leakage avoids gain error in high-impedance sensor paths; 26.0 V clamping protects 3.3 V ADC front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VBR/VC specs, identical SMB package and pinout. | Lacks automotive qualification; suitable for industrial/commercial designs without automotive lifecycle or reliability mandates. | Select when AEC-Q101 is not required and cost optimization is prioritized without sacrificing electrical performance. |
| SMAJ16AHE3/A | Lower PPPM (400 W), SMA (DO-214AC) package, same VWM/VBR but higher VC (27.7 V at 15.7 A). | Reduced surge handling capacity; used where board space allows larger footprint or lower energy threats exist. | Choose only if system-level surge testing confirms 400 W is sufficient and SMA mounting is acceptable. |
Compared with SMBJ16A-E3/52, the SMBJ16CHE3/52 adds AEC-Q101 qualification without altering electrical specs - making it the preferred choice for automotive systems - while SMAJ16AHE3/A trades power rating and package size for cost and footprint, requiring careful validation against actual surge profiles.
Availability
SMBJ16CHE3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution modules, and telecom power interfaces requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMBJ16CHE3/52 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, rectifiers, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping, low leakage, and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMBJ16CHE3/52 and how does it protect downstream components?
The SMBJ16CHE3/52 has a maximum clamping voltage (VC) of 26.0 V at 23.1 A peak pulse current (10/1000 µs waveform). This means that during a surge event, the device limits the voltage seen by downstream components - such as 16 V-rated gate drivers or microcontrollers - to no more than 26.0 V, preventing overvoltage damage while maintaining safe operating margins. The SMBJ16CHE3/52 achieves this via fast avalanche breakdown with sub-nanosecond response.
Is SMBJ16CHE3/52 suitable for automotive applications?
Yes, SMBJ16CHE3/52 is AEC-Q101 qualified, explicitly designated for automotive use with suffix "HE3". It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification per AEC standards. Its -55 °C to +150 °C operating range and MSL Level 1 reflow compatibility make SMBJ16CHE3/52 appropriate for engine control units, body control modules, and ADAS power domains.
How does the SMBJ16CHE3/52 differ from the commercial-grade SMBJ16A-E3/52?
The SMBJ16CHE3/52 and SMBJ16A-E3/52 share identical electrical specifications (VWM = 16 V, VBR = 17.8–19.7 V, VC = 26.0 V) and SMB (DO-214AA) package, but SMBJ16CHE3/52 carries AEC-Q101 qualification and RoHS-compliant construction optimized for automotive reliability. SMBJ16A-E3/52 is commercial-grade only. Both are pin-compatible, but SMBJ16CHE3/52 is required where automotive certification is mandated.
What is the maximum reverse leakage current for SMBJ16CHE3/52 at its stand-off voltage?
The SMBJ16CHE3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 16 V stand-off voltage (VWM), measured at TA = 25 °C. This ultra-low leakage ensures minimal power loss in always-on circuits and avoids signal distortion in high-impedance sensor or reference paths - a key advantage over higher-leakage alternatives in battery-powered or precision analog designs.
Can SMBJ16CHE3/52 be used in bidirectional configurations?
No, SMBJ16CHE3/52 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the SMBJ16CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities. Using SMBJ16CHE3/52 in reverse-biased configurations risks permanent failure, as it is not rated for reverse conduction beyond its specified VWM.
SMBJ16CHE3/52 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 20.8A
- 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 (SMBJ)
SMBJ16CHE3/52 FAQ
1.How can I place an order for SMBJ16CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CHE3/52 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 SMBJ16CHE3/52 reliable?
The price and inventory of SMBJ16CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ16CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CHE3/52?
SMBJ16CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CHE3/52 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 SMBJ16CHE3/52?
For technical support, including SMBJ16CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CHE3/52 requirements.
6.How does Aetrix verify that SMBJ16CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ16CHE3/52 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 SMBJ16CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ16CHE3/52?
All SMBJ16CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CHE3/52, 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 SMBJ16CHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ16CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CHE3/52 Tags
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