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Vishay General Semiconductor - Diodes Division SMB8J16CAHE3_B/H
- Part No.:
- SMB8J16CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J16CAHE3_B/H.pdf
- Description:
- 800W,16V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,550
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Product details
Overview
SMB8J16CAHE3_B/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on signal and power lines. It features a 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 30.8 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 μs waveform - suitable for automotive sensor interface and industrial I/O line protection.
For engineers reviewing the SMB8J16CAHE3_B/H datasheet, SMB8J16CAHE3_B/H pinout, SMB8J16CAHE3_B/H application, or SMB8J16CAHE3_B/H equivalent, this AEC-Q101 qualified TVS offers validated surge immunity for 12 V automotive systems, low-leakage reverse operation up to 1.0 μA at VWM, and MSL Level 1 reflow compatibility at 260 °C peak.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction delivers fast response time (<1 ns) and stable breakdown behavior under repetitive transients.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 72 °C/W and RθJL = 20 °C/W - confirming suitability for surface-mount PCB layouts with minimal copper pad area (0.2" × 0.2") and no forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin for 12 V nominal systems. |
| VBR min/max | 17.8 V / 19.7 V at 1.0 mA test current - ensures reliable, repeatable breakdown onset within tight tolerance band. |
| VC @ IPPM | 26.0 V at 30.8 A - clamping voltage during 10/1000 μs surge; limits downstream IC stress to <26 V under worst-case 800 W event. |
| PPPM | 800 W - peak pulse power handling capability per 10/1000 μs waveform; supports IEC 61000-4-5 Level 3/4 surge immunity. |
| ID @ VWM | ≤1.0 μA - ultra-low reverse leakage at rated standoff voltage; preserves signal integrity in high-impedance sensor interfaces. |
| TJ max | +150 °C - enables deployment in under-hood automotive environments and thermally constrained industrial enclosures. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - symmetrical terminal layout optimized for automated placement and reflow soldering per J-STD-020 MSL Level 1 (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity - eliminates orientation concerns during assembly. |
| Cathode Band (absent) | Polarity indicator | Not present - confirms bidirectional construction; no cathode marking required per specification for SMB8JxxCA series. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Glass-passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift in harsh environments. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving clamping precision. |
| MSL Level 1 rating | Supports standard SMT reflow profiles without baking or special handling - reduces manufacturing overhead. |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive electronic assemblies. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching protected IC. Use Value: Limits voltage seen by downstream transceiver to ≤26.0 V during 800 W surge events, preserving signal fidelity and preventing latch-up or permanent damage. |
Use Scenario: Safeguarding PLC digital input modules and analog acquisition channels against EFT/burst noise and lightning-induced surges on field wiring. IC Role / Device Role / Timing Role: Primary front-end TVS on each channel, mounted adjacent to terminal block to intercept transients before signal conditioning circuitry. Use Value: Delivers 30.8 A peak surge current handling with ≤1.0 μA leakage at 16 V, enabling high-accuracy measurement without DC offset or loading errors. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB-C PD power supplies exposed to mains-borne transients. IC Role / Device Role / Timing Role: Standoff-clamp TVS across DC output rails to clamp post-regulator overvoltage spikes caused by transformer ringing or controller fault. Use Value: Maintains 16 V working margin while clamping to 26.0 V - compatible with 19–20 V nominal adapter outputs and prevents downstream capacitor overvoltage. |
Use Scenario: Protection of Ethernet PHYs, DSL line drivers, and POTS interface ICs against induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Differential-mode TVS across line pairs (e.g., TIP-RING) to suppress common-mode and asymmetrical transients without affecting signal balance. Use Value: Symmetrical bidirectional response ensures equal clamping in both directions - critical for full-duplex communication integrity under surge stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CAHE3_A/H | Same VWM (16 V), VC (26.0 V), and PPPM (800 W); identical SMB package but older revision code (A vs B/H). | No functional difference in surge performance or thermal behavior; same AEC-Q101 qualification status. | Select SMB8J16CAHE3_B/H for latest production revision with updated traceability and process controls. |
| SMCJ16CAHE3_A/H | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM/VC specs; RθJA = 35 °C/W vs 72 °C/W. | Better thermal dissipation for sustained surge duty cycles; requires larger PCB footprint and higher mounting pad area. | Choose SMB8J16CAHE3_B/H when board space is constrained and single-event 800 W surges dominate; use SMCJ16CAHE3_A/H for repeated surge exposure. |
Compared with SMBJ16CAHE3_A/H, SMB8J16CAHE3_B/H provides identical electrical protection in an updated revision with enhanced supply chain traceability; versus SMCJ16CAHE3_A/H, it trades thermal headroom for compactness - ideal where PCB real estate is limited but surge duty is infrequent.
Availability
SMB8J16CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O modules, and telecom line protection requiring stable component supply with AEC-Q101 compliance and MSL Level 1 reflow capability.
Supply support for SMB8J16CAHE3_B/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability and automotive-grade validation.
The SMB8JxxCA series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, bidirectional surge suppression in space-constrained automotive and industrial applications.
FAQ
What is the clamping voltage of SMB8J16CAHE3_B/H at its rated peak pulse current?
The SMB8J16CAHE3_B/H has a maximum clamping voltage (VC) of 26.0 V at 30.8 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry will not experience voltages exceeding 26.0 V during standardized surge events - a critical parameter for protecting 3.3 V or 5 V logic interfaces connected via level-shifting or isolation.
Is SMB8J16CAHE3_B/H suitable for automotive applications?
Yes, SMB8J16CAHE3_B/H is AEC-Q101 qualified and explicitly designated for automotive use with suffix "HE3" indicating RoHS-compliant and AEC-Q101 qualified construction. It meets requirements for temperature cycling, high-temperature reverse bias, and mechanical shock - making it appropriate for engine control, body electronics, and ADAS sensor nodes where reliability under vibration and thermal stress is mandatory.
How does the bidirectional nature of SMB8J16CAHE3_B/H affect its PCB layout?
The SMB8J16CAHE3_B/H has no polarity marking and functions identically in both directions, so PCB layout requires no orientation alignment - simplifying automated placement and eliminating risk of reverse installation. Its symmetrical DO-214AA (SMB) footprint allows direct integration into differential signal paths (e.g., RS-485, CAN) without additional routing complexity or external polarity components.
What is the maximum reverse leakage current for SMB8J16CAHE3_B/H at its standoff voltage?
The SMB8J16CAHE3_B/H exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 16 V standoff voltage (VWM), measured at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance circuits such as precision sensor front-ends or battery-monitoring inputs, where even nanoamp-level currents could introduce measurable offset or drift.
Does SMB8J16CAHE3_B/H require special handling during reflow soldering?
No - SMB8J16CAHE3_B/H is rated MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C without baking or dry-pack requirements. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102, ensuring reliable wetting and joint formation using standard lead-free reflow profiles, reducing manufacturing cost and process complexity.
SMB8J16CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 16V
- Current - Peak Pulse (10/1000µs):
- 30.8A
- Power - Peak Pulse:
- 800W
- 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)
SMB8J16CAHE3_B/H FAQ
1.How can I place an order for SMB8J16CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J16CAHE3_B/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 SMB8J16CAHE3_B/H reliable?
The price and inventory of SMB8J16CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J16CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMB8J16CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J16CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J16CAHE3_B/H?
SMB8J16CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J16CAHE3_B/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 SMB8J16CAHE3_B/H?
For technical support, including SMB8J16CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J16CAHE3_B/H requirements.
6.How does Aetrix verify that SMB8J16CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMB8J16CAHE3_B/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 SMB8J16CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMB8J16CAHE3_B/H?
All SMB8J16CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J16CAHE3_B/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 SMB8J16CAHE3_B/H part is unused and in its original packaging.
Return procedure for SMB8J16CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J16CAHE3_B/H Tags
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