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Vishay General Semiconductor - Diodes Division SMBJ10CAHE3/52
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- Part No.:
- SMBJ10CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CAHE3/52.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,520
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Product details
Overview
SMBJ10CAHE3/52 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 signal and power lines. It features 10 V standoff 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 (10/1000 µs waveform), used in industrial sensor interface protection.
For engineers reviewing the SMBJ10CAHE3/52 datasheet, SMBJ10CAHE3/52 pinout, SMBJ10CAHE3/52 application, or SMBJ10CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both directions, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable leakage performance (<5.0 µA at VWM) and fast response time (<1.0 ps), critical for protecting MOSFET gates and IC I/O pins against ESD and inductive switching spikes.
The SMBJ10CAHE3/52 is rated for repetitive surge duty cycle of 0.01 % and derated above TA = 25 °C per Fig. 2; its junction-to-lead thermal resistance (RθJL = 20 °C/W) supports localized heat dissipation during transient events, while MSL Level 1 rating confirms suitability for standard reflow profiles up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR min/max | 11.1 V / 12.3 V at IT = 1 mA - Confirmed bidirectional breakdown range; ensures consistent clamping onset across production lots. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient overvoltage exposure. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; validates robustness against lightning-induced surges and relay bounce. |
| ID @ VWM | ≤5.0 µA - Reverse leakage at standoff voltage; low value minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial control cabinet environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with JEDEC-standard pick-and-place equipment. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 compliant. Bidirectional construction means no polarity marking; both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency required for protection function. |
| Case / Body | Thermal and mechanical interface | Plastic body provides electrical isolation; copper pad layout (0.2" × 0.2") directly impacts RθJA and surge current handling capability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - enables use in ADAS sensor modules and infotainment power rails. |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from motor drives and solenoid switching without degradation - verified per ANSI/IEEE C62.35 standards. |
| Low clamping ratio (VC/VBR ≈ 1.53) | Minimizes overvoltage stress on downstream ICs - e.g., keeps microcontroller I/O pins below absolute maximum ratings during 35.3 A surge. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without moisture-related delamination or parametric shift - eliminates pre-bake requirement. |
| Glass-passivated junction | Ensures stable VBR and low ID over lifetime and temperature - critical for long-term field reliability in unattended industrial gateways. |
Applications
| Industrial Sensor Interface Protection | Automotive CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to relay contact bounce and nearby motor switching noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing ±1 kV EFT bursts without affecting DC accuracy. Use Value: Maintains <5 µA leakage at 10 V VWM to avoid loading precision current sources, while clamping transients to ≤17.0 V to safeguard op-amp inputs. |
Use Scenario: Safeguarding CAN_H/CAN_L differential pair in automotive body control modules against load dump and ISO 7637-2 pulse 1/2a/3a transients. IC Role / Device Role / Timing Role: Symmetrical TVS pair (one per line) referenced to chassis ground, responding within picoseconds to suppress >100 V spikes. Use Value: AEC-Q101 qualification and 150 °C TJ max ensure compliance with automotive environmental requirements; low capacitance avoids CAN bit timing distortion. |
| Consumer Power Adapter Input Stage | Telecom DSL Line Surge Protection |
|
Use Scenario: Secondary-side overvoltage protection on 12 V DC output rails of wall adapters subjected to AC line surges and hot-plug events. IC Role / Device Role / Timing Role: Standoff-rated clamp shunting transient energy to ground before it reaches downstream DC-DC converters or USB controllers. Use Value: 10 V VWM aligns with nominal 12 V rail; 600 W PPPM handles IEC 61000-4-5 combination wave surges without failure or parameter drift. |
Use Scenario: Primary protection for ADSL/VDSL line interface ICs in customer premises equipment exposed to lightning-induced longitudinal surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Bidirectional TVS installed between tip/ring and ground, limiting common-mode transients before they couple into transformer-coupled front-end circuitry. Use Value: Symmetrical VBR (11.1–12.3 V) ensures balanced clamping on both conductors; DO-214AA package allows compact PCB layout near RJ-11 connector. |
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-M3/52 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification; same SMB package and thermal performance. | No difference in circuit design or layout; selected when halogen-free material compliance is mandated by OEM sustainability policies. | Choose SMBJ10CA-M3/52 if halogen-free bill-of-materials is required; otherwise SMBJ10CAHE3/52 offers full AEC-Q101 + RoHS compliance in standard configuration. |
| SMCJ10CAHE3/52 | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; higher thermal mass yields RθJA = 50 °C/W vs. 100 °C/W; 1500 W PPPM rating. | Used where higher surge endurance or improved thermal margin is needed - e.g., in outdoor telecom enclosures with limited airflow. | Choose SMCJ10CAHE3/52 only when 1500 W surge rating or lower thermal resistance is required; SMBJ10CAHE3/52 remains optimal for space-constrained consumer and automotive PCBs. |
Compared with SMBJ10CA-M3/52, SMBJ10CAHE3/52 shares identical protection performance but uses standard RoHS-compliant plating instead of halogen-free; versus SMCJ10CAHE3/52, it trades surge capacity and thermal margin for 40 % smaller PCB area and compatibility with fine-pitch SMT lines.
Availability
SMBJ10CAHE3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus nodes, consumer power adapter outputs, and telecom DSL line protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBJ10CAHE3/52 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against ESD, EFT, and surge events is non-negotiable.
FAQ
What is the clamping voltage of SMBJ10CAHE3/52 at its rated peak pulse current?
The SMBJ10CAHE3/52 has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 35.3 A with a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ10CAHE3/52 maintains this clamping performance across its operational temperature range and after repeated surge exposures when applied within datasheet limits.
Is SMBJ10CAHE3/52 suitable for automotive applications?
Yes, SMBJ10CAHE3/52 is AEC-Q101 qualified, meaning it has passed rigorous stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD verification required for automotive electronic components. Its operating junction temperature range of –55 °C to +150 °C and MSL Level 1 reflow compatibility make it appropriate for engine bay, chassis, and infotainment subsystems. The SMBJ10CAHE3/52 is explicitly designated for automotive use via the "HE3" suffix per Vishay's ordering nomenclature.
How does the bidirectional nature of SMBJ10CAHE3/52 affect its circuit implementation?
The bidirectional structure of SMBJ10CAHE3/52 means it conducts and clamps symmetrically for both positive- and negative-polarity transients, eliminating the need for polarity-aware placement or additional components like series diodes. In practice, SMBJ10CAHE3/52 is connected between a signal line and ground (or between differential lines), and functions identically regardless of transient direction. This simplifies layout, reduces BOM count, and improves reliability in AC-coupled or floating systems such as telecom line interfaces or isolated sensor outputs.
What is the thermal resistance of SMBJ10CAHE3/52, and how does it impact PCB layout?
The SMBJ10CAHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, and a junction-to-lead resistance (RθJL) of 20 °C/W. These values mean that effective heat spreading via adequate copper area is essential to sustain repeated surge events. Reducing pad size or omitting thermal vias increases RθJA, risking thermal runaway during high-duty-cycle transients. The SMBJ10CAHE3/52 datasheet specifies minimum pad dimensions to guarantee rated PPPM performance.
Does SMBJ10CAHE3/52 require derating at elevated ambient temperatures?
Yes, SMBJ10CAHE3/52 must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet (Document Number: 88392). Its peak pulse power capability decreases linearly with rising ambient temperature - for example, at TA = 85 °C, PPPM is reduced to approximately 65 % of the 600 W rating. This derating applies to both single-pulse and repetitive surge conditions. Designers must apply this curve when sizing SMBJ10CAHE3/52 for high-temperature enclosures or densely packed PCBs where local ambient exceeds 25 °C.
SMBJ10CAHE3/52 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ10CAHE3/52 FAQ
1.How can I place an order for SMBJ10CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CAHE3/52 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 SMBJ10CAHE3/52 reliable?
The price and inventory of SMBJ10CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ10CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CAHE3/52?
SMBJ10CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CAHE3/52 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 SMBJ10CAHE3/52?
For technical support, including SMBJ10CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ10CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ10CAHE3/52 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 SMBJ10CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ10CAHE3/52?
All SMBJ10CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CAHE3/52, 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 SMBJ10CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ10CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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