My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ16CAHM3_B/H
- Part No.:
- SMBJ16CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CAHM3_B/H.pdf
- Description:
- 600W,16V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,953
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ16CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. 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 - deployed on power rails and signal lines in industrial sensor interfaces and automotive ECUs.
For engineers reviewing the SMBJ16CAHM3_B/H datasheet, SMBJ16CAHM3_B/H pinout, SMBJ16CAHM3_B/H application, or SMBJ16CAHM3_B/H equivalent, this device is evaluated for bidirectional surge suppression in 12 V–24 V systems where low clamping voltage, fast response (<1 ns), and AEC-Q101 qualification are critical selection criteria.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) ranging from 17.8 V to 19.7 V at 1.0 mA test current. Its clamping behavior is defined under standardized 10/1000 µs surge conditions, delivering consistent VC ≤ 26.0 V up to IPPM = 23.1 A while maintaining low incremental surge resistance.
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to TJ = +150 °C. The HM3 suffix confirms halogen-free, RoHS-compliant construction with AEC-Q101 qualification - validated for automotive-grade reliability without derating in ambient temperatures from –55 °C to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates; sets system-level DC rail compatibility for 12 V nominal circuits. |
| VBR min/max | 17.8 V / 19.7 V at IT = 1.0 mA - ensures predictable, symmetrical breakdown onset in both directions for balanced transient handling. |
| VC @ IPPM | 26.0 V at 23.1 A (10/1000 µs) - defines worst-case voltage seen by protected IC during surge; enables safe margin below 30 V logic or MOSFET gate thresholds. |
| PPPM | 600 W - peak transient energy absorption capacity; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity in compact SMB footprint. |
| ID @ VWM | 1.0 µA - ultra-low leakage at rated stand-off voltage; prevents measurable power loss or signal distortion in high-impedance sensor lines. |
| TJ max. | +150 °C - junction temperature limit compatible with under-hood automotive environments and industrial enclosures without forced cooling. |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 4.06 mm body and 2.20 mm height; optimized for automated placement and reflow soldering. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals with identical electrical behavior in either direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (either polarity) | Accepts surge current regardless of voltage polarity; connects directly to protected line (e.g., CAN_H or LIN bus). |
| Cathode | Transient current exit point (either polarity) | Completes low-impedance path to ground or return rail during clamping; requires low-inductance PCB layout to preserve response speed. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., RS-485, CAN FD) without polarity concerns. |
| 600 W peak pulse power | Withstands repeated 10/1000 µs surges up to 23.1 A - meets IEC 61000-4-5 Ed. 3 requirements for industrial and automotive subsystems. |
| AEC-Q101 qualified (HM3) | Validated for automotive applications including engine control, body electronics, and ADAS sensors - guaranteed reliability over full temperature and lifetime cycles. |
| Low clamping voltage (26.0 V) | Minimizes stress on downstream 24 V-rated components such as microcontrollers, transceivers, and power management ICs during surge events. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns - eliminates pre-bake requirement in SMT assembly. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-supplied ECU power inputs against load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between VIN and GND, responding within <1 ns to suppress spikes up to 60 V. Use Value: Limits voltage excursion to ≤26.0 V during 23.1 A surges, preventing latch-up or permanent damage to PMICs and MCU power domains. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC modules from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional shunt element across differential pair (e.g., 4–20 mA loop), conducting only during transient overvoltage events. Use Value: Maintains signal integrity with <1.0 µA leakage at 16 V, while clamping ESD strikes (IEC 61000-4-2 ±8 kV contact) to safe levels for ADC front-end circuitry. |
| Telecom Interface Surge Protection | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding Ethernet PHY or PoE-powered device ports against lightning-induced surges on data lines per IEC 61000-4-5. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing low-clamp final-stage suppression on twisted-pair lines. Use Value: Delivers 26.0 V clamping at 23.1 A, ensuring compliance with IEEE 802.3af/bt surge immunity requirements without compromising data rate integrity. |
Use Scenario: Adding robustness to USB 2.0 VBUS and D+/D− lines in smart home hubs against user-handling ESD and adapter overvoltage faults. IC Role / Device Role / Timing Role: Bidirectional TVS array component protecting all three lines simultaneously with matched clamping characteristics. Use Value: Enables certified ±15 kV air/±8 kV contact ESD protection (IEC 61000-4-2) while adding <0.5 pF parasitic capacitance - negligible impact on 480 Mbps signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CAHE3_B/H | Same electrical specs (VWM = 16 V, VC = 26.0 V), but RoHS-compliant with tin-lead finish (not halogen-free); lacks AEC-Q101 qualification. | Approved for commercial/industrial use only; not permitted in automotive production without additional qualification testing. | Select when cost sensitivity outweighs automotive compliance needs and halogen-free materials are not mandated. |
| SMAJ16CAHM3 | Lower PPPM (400 W vs. 600 W); same VWM and VC, but reduced IPPM (15.4 A); SMA package (smaller footprint, higher thermal resistance). | Suitable for space-constrained consumer designs with lower surge threat levels (e.g., IEC 61000-4-2 only, no IEC 61000-4-5). | Choose for PCB area savings where 600 W surge rating is unnecessary and thermal dissipation is managed via board copper. |
Compared with SMBJ16CAHE3_B/H, SMBJ16CAHM3_B/H adds halogen-free construction and AEC-Q101 validation for automotive use; versus SMAJ16CAHM3, it delivers 50 % higher surge power handling and superior thermal performance in the larger SMB package - critical for sustained transient immunity in harsh environments.
Availability
SMBJ16CAHM3_B/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom infrastructure projects requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ16CAHM3_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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMBJ series targets high-energy transient suppression in compact surface-mount formats, engineered specifically for AEC-Q101-compliant automotive subsystems and ruggedized industrial controls where failure modes must be eliminated.
FAQ
What is the clamping voltage of SMBJ16CAHM3_B/H at its rated peak pulse current?
The SMBJ16CAHM3_B/H has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 23.1 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and represents the upper voltage limit imposed on protected circuitry during a full-power transient event - a key parameter for verifying safe operating margins of downstream ICs.
Is SMBJ16CAHM3_B/H suitable for automotive applications?
Yes, SMBJ16CAHM3_B/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials (HM3 suffix). It is explicitly intended for automotive use cases including engine control units, body electronics, and ADAS sensor modules - validated for operation across –55 °C to +150 °C junction temperature and compliant with automotive surge immunity standards such as ISO 7637-2.
How does SMBJ16CAHM3_B/H differ from unidirectional SMBJ16A variants?
SMBJ16CAHM3_B/H is bidirectional, meaning it clamps symmetrically for both positive and negative transients - ideal for AC-coupled or differential lines like CAN or RS-485. In contrast, unidirectional SMBJ16A has a cathode band and conducts only during reverse-biased surges; it cannot protect against positive-going transients on grounded lines without additional circuitry.
What is the maximum leakage current of SMBJ16CAHM3_B/H at its stand-off voltage?
At its 16 V stand-off voltage (VWM), the SMBJ16CAHM3_B/H exhibits a maximum reverse leakage current (ID) of 1.0 µA at TA = 25 °C. This ultra-low leakage ensures minimal power drain and signal interference in high-impedance applications such as precision sensor outputs or battery-backed monitoring circuits.
Does SMBJ16CAHM3_B/H require special PCB layout considerations?
Yes - to preserve its sub-nanosecond response time and minimize clamping overshoot, SMBJ16CAHM3_B/H must be placed with short, wide, low-inductance traces between the protected line and ground plane. Vishay recommends mounting on 5.0 mm × 5.0 mm copper pads per terminal and avoiding vias or routing stubs near the device terminals.
SMBJ16CAHM3_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:
- 26V
- Current - Peak Pulse (10/1000µs):
- 23.1A
- Power - Peak Pulse:
- 600W
- 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)
SMBJ16CAHM3_B/H FAQ
1.How can I place an order for SMBJ16CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CAHM3_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 SMBJ16CAHM3_B/H reliable?
The price and inventory of SMBJ16CAHM3_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 SMBJ16CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ16CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CAHM3_B/H?
SMBJ16CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CAHM3_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 SMBJ16CAHM3_B/H?
For technical support, including SMBJ16CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CAHM3_B/H requirements.
6.How does Aetrix verify that SMBJ16CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ16CAHM3_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 SMBJ16CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ16CAHM3_B/H?
All SMBJ16CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CAHM3_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 SMBJ16CAHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ16CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CAHM3_B/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
