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Vishay General Semiconductor - Diodes Division SMBJ16CAHE3/52
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- Part No.:
- SMBJ16CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CAHE3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,486
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Product details
Overview
SMBJ16CAHE3/52 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 power and signal lines. It features a 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMBJ16CAHE3/52 datasheet, SMBJ16CAHE3/52 pinout, SMBJ16CAHE3/52 application, or SMBJ16CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compliance with UL 497B for surge protector classification.
Technical Context
This device operates as a voltage-clamped crowbar during transient events, leveraging an avalanche breakdown mechanism to divert surge current away from sensitive downstream circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity-dependent design constraints in AC-coupled or floating signal paths.
The SMBJ16CAHE3/52 is rated for -55 °C to +150 °C operating junction temperature, with glass passivated chip junction and matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. It meets MSL Level 1 per J-STD-020 and achieves UL 497B recognition under file E136766 for both uni- and bidirectional configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse stand-off voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR min / max | 17.8 V / 19.7 V at IT = 1 mA - breakdown voltage range where avalanche conduction initiates reliably under transient stress |
| VC @ IPPM | 26.0 V at 23.1 A - clamped voltage seen by protected circuit during full 600 W surge; determines maximum stress on downstream components |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform; defines transient energy absorption capacity without failure |
| ID @ VWM | 1.0 µA - maximum reverse leakage at 16 V; ensures minimal quiescent power loss and signal integrity in high-impedance circuits |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive or enclosed industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs heatsinking requirements for repetitive surges |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. No polarity marking on bidirectional variants; terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current regardless of polarity; connects to line under protection |
| Cathode | Transient current entry (bidirectional) | Functions identically to anode due to symmetric construction; no functional distinction in CA devices |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - supports use in ADAS power rails and infotainment ECUs |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 (4 kV) surges on 50 Ω source impedance without degradation when mounted per recommended pad layout |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage exposure during clamping - critical for protecting 3.3 V or 5 V logic interfaces adjacent to protected lines |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture-induced popcorn failure or delamination |
| UL 497B recognized (E136766) | Meets safety agency requirements for telecom and industrial surge protection modules requiring certified component-level approval |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) CAN Bus Lines |
|---|---|
|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power supply subjected to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed across input terminals to limit voltage excursions to ≤26.0 V during 600 W surges. Use Value: Prevents damage to upstream rectifier diodes and downstream DC-DC controllers by absorbing >99% of transient energy within 100 ns response time. |
Use Scenario: CAN_H/CAN_L differential pair in vehicle body control module exposed to ESD and battery reversal events. IC Role / Device Role / Timing Role: Symmetric bidirectional clamp protecting transceiver inputs against ±25 kV contact ESD (IEC 61000-4-2) and ±100 V load dump coupling. Use Value: Maintains CAN signal integrity with <1.0 µA leakage at 16 V, avoiding false dominant states while surviving AEC-Q101 stress profiles. |
| Telecom Line Card Surge Protection | Consumer Sensor Hub ESD Shielding |
|
Use Scenario: Primary-side protection on Ethernet PHY interface of telecom access node operating in outdoor cabinets. IC Role / Device Role / Timing Role: First-line TVS device shunting lightning-induced surges (IEC 61000-4-5) before reaching isolation transformers and PHY ICs. Use Value: Clamps 10/1000 µs surges to 26.0 V with <100 ns response, limiting stress on 3.3 V PHY core and enabling compliance with GR-1089-CORE. |
Use Scenario: ESD protection for I²C bus connecting environmental sensors (temperature/humidity) to MCU in smart home hub. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on SDA/SCL lines, placed immediately at connector entry point. Use Value: Provides ±15 kV air/±8 kV contact ESD immunity (IEC 61000-4-2) without distorting 400 kHz I²C timing due to minimal junction capacitance (<100 pF at 0 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 |
|---|---|---|---|
| SMBJ16CA-M3/52 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification; same SMB package and thermal performance | No difference in circuit function or layout; selected when halogen-free material compliance is required for end-product certification | Choose SMBJ16CA-M3/52 if EU EcoDesign or specific customer material declarations mandate halogen-free construction. |
| SMAJ16CAHE3/A | Lower 400 W PPPM rating; SMA (DO-214AC) package with higher RθJA (140 °C/W); otherwise matches VWM, VC, and VBR | Reduced surge handling limits suitability to lower-energy applications (e.g., USB ports, low-power sensors); requires larger copper area for thermal management | Use SMAJ16CAHE3/A only where space constraints force SMA footprint and surge threat level is below 400 W. |
Compared with SMBJ16CAHE3/52, SMBJ16CA-M3/52 offers identical protection performance with halogen-free molding compound, while SMAJ16CAHE3/A trades 33% lower pulse power and higher thermal resistance for smaller footprint - making SMBJ16CAHE3/52 optimal for high-reliability 600 W surge environments where AEC-Q101 and UL recognition are mandatory.
Availability
SMBJ16CAHE3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom line cards, and consumer sensor hubs requiring stable component supply with AEC-Q101 validation and UL 497B recognition.
Supply support for SMBJ16CAHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where sustained surge immunity and long-term stability are non-negotiable.
FAQ
What is the clamping voltage of SMBJ16CAHE3/52 at its rated peak pulse current?
The SMBJ16CAHE3/52 has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 23.1 A with a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMBJ16CAHE3/52 maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ16CAHE3/52 suitable for automotive applications?
Yes, SMBJ16CAHE3/52 is AEC-Q101 qualified and explicitly listed in Vishay's automotive ordering codes (HE3 suffix). It undergoes stress testing for temperature cycling, high-temperature reverse bias, and surge endurance per AEC-Q101 Rev D. The SMBJ16CAHE3/52 is deployed in body control modules, infotainment power rails, and ADAS camera power inputs where bidirectional transient suppression and extended temperature operation are required.
How does SMBJ16CAHE3/52 differ from unidirectional SMBJ16AHE3/52?
The SMBJ16CAHE3/52 is bidirectional with symmetrical clamping in both polarities and no cathode band marking, whereas SMBJ16AHE3/52 is unidirectional with a visible cathode band and conducts only in reverse bias. Electrically, SMBJ16CAHE3/52 has identical VWM (16 V), VBR (17.8–19.7 V), and VC (26.0 V), but its bidirectional nature makes it suitable for AC lines, differential buses like CAN, or floating grounds where polarity cannot be guaranteed - a key distinction the SMBJ16CAHE3/52 addresses directly.
What is the maximum reverse leakage current for SMBJ16CAHE3/52 at its stand-off voltage?
The SMBJ16CAHE3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated stand-off voltage (VWM) of 16 V and TA = 25 °C. This low leakage ensures minimal power loss and avoids false triggering in high-impedance sensing circuits or battery-powered systems. Leakage remains below 5 µA up to +125 °C, supporting reliable operation in thermally demanding enclosures without compromising signal integrity.
Does SMBJ16CAHE3/52 require special PCB layout considerations?
Yes - Vishay specifies mounting on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and thermal resistance (RθJA = 100 °C/W). Use of smaller pads or inadequate copper pour reduces surge capability and increases junction temperature. The SMBJ16CAHE3/52 also requires symmetric trace routing for bidirectional performance and must avoid thermal reliefs on pads to maintain heat dissipation integrity during repetitive transients.
SMBJ16CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
SMBJ16CAHE3/52 FAQ
1.How can I place an order for SMBJ16CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CAHE3/52 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 SMBJ16CAHE3/52 reliable?
The price and inventory of SMBJ16CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ16CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CAHE3/52?
SMBJ16CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CAHE3/52 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 SMBJ16CAHE3/52?
For technical support, including SMBJ16CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ16CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ16CAHE3/52 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 SMBJ16CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ16CAHE3/52?
All SMBJ16CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CAHE3/52, 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 SMBJ16CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ16CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CAHE3/52 Tags
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