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Vishay General Semiconductor - Diodes Division SMBJ16CAHE3_A/I
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- Part No.:
- SMBJ16CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CAHE3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,626
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Product details
Overview
SMBJ16CAHE3_A/I 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 a 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), commonly deployed to protect MOSFETs and sensor interfaces in industrial motor drives.
For engineers reviewing the SMBJ16CAHE3_A/I datasheet, SMBJ16CAHE3_A/I pinout, SMBJ16CAHE3_A/I application, or SMBJ16CAHE3_A/I equivalent, this device is selected for robust ESD and surge immunity in bidirectional AC-coupled or floating signal paths where polarity-agnostic clamping is required - especially where AEC-Q101 qualification, low incremental surge resistance, and MSL Level 1 moisture sensitivity are critical.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 17.8–19.7 V (IT = 1.0 mA), enabling consistent clamping regardless of transient polarity. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and fast response time (<1.0 ns), critical for protecting high-speed analog and digital inputs against lightning-induced surges and inductive switching spikes.
The device is rated for TJ = –55 °C to +150 °C operation and exhibits a temperature coefficient of VBR of +0.089 %/°C. Thermal resistance is RθJA = 100 °C/W (on 0.2" × 0.2" copper pads), supporting reliable power dissipation under repetitive surge conditions up to 0.01 % duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1.0 mA - Confirmed bidirectional breakdown range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 26.0 V at 23.1 A (10/1000 µs) - Clamped voltage seen by protected circuit; determines maximum stress on downstream components. |
| PPPM | 600 W - Peak transient energy handling capability; supports protection against IEC 61000-4-5 Level 3 surges (1 kV/2 Ω). |
| IPPM | 23.1 A - Peak surge current the device safely shunts without degradation; validated per Fig. 1 and derated above 25 °C. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; supports standard SMT reflow without baking preconditioning. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pairs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Surge current path (reversible) | Either terminal accepts transient current in either direction; no cathode band marking required. |
| Cathode (unidirectional reference) | N/A for SMBJ16CAHE3_A/I | This part is bidirectional; unidirectional polarity conventions do not apply - terminals are functionally identical. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection on AC lines, differential buses, or floating sensors without polarity concerns. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for ADAS and body control modules. |
| 600 W peak pulse power | Withstands 10/1000 µs surges up to 23.1 A - meets IEC 61000-4-5 (2 Ω/12 Ω source impedance) requirements for industrial equipment. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during clamping - preserves signal integrity and reduces risk of latch-up in protected ICs. |
| MSL Level 1 & RoHS-compliant | Supports lead-free reflow (260 °C peak) without moisture sensitivity restrictions - simplifies manufacturing and logistics. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and current-sense amplifiers against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power supply rails and signal inputs to clamp transients before they reach sensitive analog front-ends. Use Value: Limits voltage excursions to ≤26.0 V during 23.1 A surges, preventing damage to 3.3 V/5 V logic and precision op-amps. |
Use Scenario: Surge suppression on LIN bus lines and door module sensor inputs exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Standoff-rated clamping element on bidirectional communication lines, operating within ±16 V common-mode range. Use Value: Maintains signal fidelity during 10/1000 µs transients while meeting AEC-Q101 lifetime requirements for 15-year vehicle service life. |
| Industrial PLC I/O Modules | Consumer Appliance Control Boards |
|
Use Scenario: Input protection for 24 V DC digital inputs connected to field wiring subject to EFT and lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient suppressor located at connector entry point, shunting surge energy directly to ground plane. Use Value: Achieves <1.0 µA leakage at 16 V, ensuring minimal impact on input threshold detection while delivering 600 W surge capacity. |
Use Scenario: ESD and surge protection for touch panel interfaces and microcontroller reset lines in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on low-voltage signal traces (<50 pF typical), preserving rise time integrity. Use Value: Enables compliance with IEC 61000-4-2 (±8 kV contact) and IEC 61000-4-4 (±2 kV EFT) without adding series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VC/PPPM, 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 over automotive traceability. |
| SMCJ16CAHE3_A/I | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass (RθJA = 50 °C/W vs. 100 °C/W). | Better suited for high-repetition-rate surges or elevated ambient temperatures where SMB thermal limits are exceeded. | Choose when PCB layout allows larger footprint and sustained surge duty cycles exceed SMBJ's 0.01 % limit. |
Compared with SMBJ16CA-E3/52, SMBJ16CAHE3_A/I adds AEC-Q101 qualification and traceable lot control for automotive use; compared with SMCJ16CAHE3_A/I, it trades thermal headroom for space-constrained layouts - making SMBJ16CAHE3_A/I optimal for compact, automotive-qualified board-level protection.
Availability
SMBJ16CAHE3_A/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, PLC I/O protection, and consumer appliance control boards requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMBJ16CAHE3_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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMBJ series is engineered for high-energy transient suppression in space-constrained, high-reliability systems - targeting automotive, industrial automation, and telecom infrastructure where bidirectional clamping and AEC-Q101 compliance are mandatory.
FAQ
What does the "CA" suffix indicate in SMBJ16CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration - meaning SMBJ16CAHE3_A/I provides symmetrical clamping for voltage transients of either polarity. Unlike unidirectional variants (e.g., SMBJ16A), it has no cathode marking and functions identically across both terminals, making it ideal for AC-coupled lines, differential buses, and floating sensor interfaces where polarity is undefined or reversible.
Is SMBJ16CAHE3_A/I suitable for IEC 61000-4-5 surge testing?
Yes, SMBJ16CAHE3_A/I is validated for IEC 61000-4-5 compliance: its 600 W peak pulse power (10/1000 µs waveform) and 26.0 V clamping voltage at 23.1 A enable protection against Level 3 (1 kV/2 Ω) and Level 4 (2 kV/2 Ω) surges when properly laid out with low-inductance grounding. The device's low incremental surge resistance ensures rapid energy diversion without excessive voltage overshoot during standardized surge events.
How does the HE3 suffix affect SMBJ16CAHE3_A/I's qualification status?
The "HE3" suffix in SMBJ16CAHE3_A/I indicates RoHS-compliant construction with AEC-Q101 qualification - verified for automotive-grade reliability including temperature cycling, high-temperature reverse bias (HTRB), and surge endurance. This distinguishes it from commercial-grade variants (e.g., E3) and confirms suitability for under-hood and chassis-mounted applications where extended temperature operation (–55 °C to +150 °C) and long-term stability are required.
What is the maximum allowable printed circuit board pad size for SMBJ16CAHE3_A/I to meet its rated PPPM?
SMBJ16CAHE3_A/I achieves its full 600 W peak pulse power rating when mounted on minimum recommended copper pads: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal, per Vishay Document 88392. Reducing pad area increases thermal resistance and de-rates PPPM - for example, halving pad size may reduce effective surge capability by ~25 %. Layout must maintain these dimensions and use internal ground planes for optimal heat spreading and surge current return paths.
Can SMBJ16CAHE3_A/I replace unidirectional TVS diodes in existing designs?
SMBJ16CAHE3_A/I can replace unidirectional TVS diodes only if the circuit topology supports bidirectional clamping - such as across AC signal lines, transformer-coupled interfaces, or floating power rails. It must not be substituted in DC-biased unidirectional paths (e.g., 5 V supply-to-ground) without verifying that reverse leakage and clamping behavior under forward bias meet system requirements, as SMBJ16CAHE3_A/I lacks a defined cathode and conducts equally in both directions.
SMBJ16CAHE3_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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 23.1A
- 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)
SMBJ16CAHE3_A/I FAQ
1.How can I place an order for SMBJ16CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CAHE3_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 SMBJ16CAHE3_A/I reliable?
The price and inventory of SMBJ16CAHE3_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 SMBJ16CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ16CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CAHE3_A/I?
SMBJ16CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CAHE3_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 SMBJ16CAHE3_A/I?
For technical support, including SMBJ16CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ16CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ16CAHE3_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 SMBJ16CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ16CAHE3_A/I?
All SMBJ16CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CAHE3_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 SMBJ16CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ16CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CAHE3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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