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Vishay General Semiconductor - Diodes Division SMBJ160CAHM3_B/H
- Part No.:
- SMBJ160CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160CAHM3_B/H.pdf
- Description:
- 600W,160V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,673
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Product details
Overview
SMBJ160CAHM3_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 160 V standoff voltage (VWM), 178–197 V breakdown voltage (VBR) at 1 mA, 259 V maximum clamping voltage (VC) at 2.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ160CAHM3_B/H datasheet, SMBJ160CAHM3_B/H pinout, SMBJ160CAHM3_B/H application, or SMBJ160CAHM3_B/H equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal derating curves, AEC-Q101 qualification status, and real-world use cases in automotive-grade power supply protection and sensor line surge suppression.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance regardless of transient polarity - critical for protecting AC-coupled or floating signal paths. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced transients.
The device is rated for 150 °C maximum junction temperature and exhibits a 0.108 %/°C temperature coefficient of VBR, supporting reliable operation in extended-temperature industrial environments. Its MSL Level 1 moisture sensitivity and matte tin-plated leads comply with J-STD-002 solderability and JESD22-B102 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 178 V / 197 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on under surge conditions. |
| VC @ IPPM | 259 V at 2.3 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 surge immunity testing. |
| ID @ VWM | <1.0 µA - Ultra-low reverse leakage at rated standoff; prevents unnecessary power loss in high-impedance nodes. |
| TJ max. | +150 °C - Maximum junction temperature; enables deployment in under-hood automotive and industrial power modules. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts surge current in either direction when V exceeds VBR. |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA devices; forms symmetrical clamping pair with no functional distinction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both directions - eliminates need for polarity-aware layout in AC or differential signal protection. |
| 600 W peak pulse power | Withstands 10/1000 µs surges up to 2.3 A without degradation - meets IEC 61000-4-5 Ed. 3 requirements for industrial equipment. |
| AEC-Q101 qualified | Validated for automotive applications per HM3 suffix - supports use in engine control units and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant | HM3 suffix denotes halogen-free molding compound and RoHS compliance - satisfies EU ELV and IPC-1752A material declarations. |
| MSL Level 1 | No floor life limitation; can be stored indefinitely before reflow - simplifies inventory management and eliminates bake requirements. |
Applications
| Industrial Motor Drives | Automotive Power Supply Rails |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from IGBT/MOSFET switching. IC Role / Device Role / Timing Role: Bidirectional TVS clamps voltage spikes exceeding ±200 V to ≤259 V within nanoseconds. Use Value: Prevents latch-up or permanent damage to isolated gate drivers (e.g., Si823x) and analog front-end ICs. |
Use Scenario: Surge suppression on 12 V/24 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Fast-clamping element placed upstream of LDOs and PMICs to limit input voltage excursion. Use Value: Enables compliance with ISO 16750-2 transient test profiles while maintaining <1 µA standby leakage. |
| Telecom Data Line Interfaces | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protection of RS-485 transceivers (e.g., THVD1550) connected to long outdoor cabling. IC Role / Device Role / Timing Role: Bidirectional clamp across differential pair (A/B) and ground to suppress common-mode surges. Use Value: Maintains signal integrity by limiting clamping overshoot to 259 V while adding <1 pF capacitance at 0 V bias. |
Use Scenario: Shielding 4–20 mA current loop inputs in PLC analog input modules from field wiring transients. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) standoff device placed between loop terminals and op-amp input stage. Use Value: Preserves measurement accuracy by avoiding DC offset drift caused by higher-leakage alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CAHE3_B/H | Same electrical specs; RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification. | Suitable for commercial/industrial use only; not approved for automotive under-hood deployment. | Select when halogen-free requirement is absent and automotive qualification is unnecessary. |
| SMAJ160CA | Lower 400 W PPPM; larger SMA package (DO-214AC); 288 V VC at 1.8 A. | Reduced surge margin and higher clamping voltage; less effective for IEC 61000-4-5 Level 4 compliance. | Choose only if board space allows larger footprint and lower surge immunity suffices. |
Compared with SMBJ160CAHM3_B/H, the HE3 variant trades halogen-free construction and automotive qualification for cost savings in non-automotive systems, while the SMAJ160CA sacrifices 33 % peak power and clamping performance for legacy package compatibility.
Availability
SMBJ160CAHM3_B/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive power supply rails, and telecom data line interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ160CAHM3_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, efficiency, and application-specific optimization.
The SMBJ series targets high-energy transient suppression in space-constrained designs, combining AEC-Q101 qualification, halogen-free materials, and industry-standard SMB packaging for automotive and industrial power integrity.
FAQ
What is the clamping voltage of SMBJ160CAHM3_B/H at its rated peak pulse current?
The SMBJ160CAHM3_B/H has a maximum clamping voltage (VC) of 259 V at 2.3 A peak pulse current (IPPM) under the standard 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 surge events. The SMBJ160CAHM3_B/H maintains this clamping performance bidirectionally, ensuring consistent protection regardless of transient polarity.
Is SMBJ160CAHM3_B/H suitable for automotive applications?
Yes, SMBJ160CAHM3_B/H is AEC-Q101 qualified, as confirmed by the HM3 suffix in its ordering code and Vishay's documentation. It is rated for operation from –55 °C to +150 °C and meets MSL Level 1 handling requirements - making it appropriate for under-hood engine control units, body electronics, and ADAS sensor interfaces. The SMBJ160CAHM3_B/H also complies with JESD22-B102 whisker resistance and J-STD-002 solderability standards required for automotive production.
How does the bidirectional configuration of SMBJ160CAHM3_B/H affect PCB layout?
The SMBJ160CAHM3_B/H has no polarity marking and identical electrical behavior in both directions, so PCB layout requires no orientation alignment - the device can be placed in either direction across protected lines. This simplifies routing for differential signals (e.g., RS-485), AC-coupled paths, or floating grounds where polarity reversal is possible. Unlike unidirectional TVS diodes, the SMBJ160CAHM3_B/H eliminates risk of incorrect installation during assembly.
What is the maximum reverse leakage current for SMBJ160CAHM3_B/H at its standoff voltage?
The SMBJ160CAHM3_B/H specifies a maximum reverse leakage current (ID) of 1.0 µA at its 160 V standoff voltage (VWM), tested at 25 °C. This ultra-low leakage ensures minimal power loss in high-impedance monitoring circuits and preserves accuracy in precision analog signal paths. The SMBJ160CAHM3_B/H maintains this specification across its full operating temperature range, with leakage increasing predictably per Vishay's thermal derating curves.
Does SMBJ160CAHM3_B/H require special handling or baking before reflow soldering?
No, SMBJ160CAHM3_B/H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and does not absorb moisture under standard ambient conditions. Therefore, no baking or dry-pack handling is required prior to reflow soldering. The SMBJ160CAHM3_B/H can be mounted directly from tape-and-reel using standard lead-free reflow profiles, including peak temperatures up to 260 °C, as validated in Vishay's qualification testing.
SMBJ160CAHM3_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):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 259V
- Current - Peak Pulse (10/1000µs):
- 2.3A
- 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)
SMBJ160CAHM3_B/H FAQ
1.How can I place an order for SMBJ160CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160CAHM3_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 SMBJ160CAHM3_B/H reliable?
The price and inventory of SMBJ160CAHM3_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 SMBJ160CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ160CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160CAHM3_B/H?
SMBJ160CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160CAHM3_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 SMBJ160CAHM3_B/H?
For technical support, including SMBJ160CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160CAHM3_B/H requirements.
6.How does Aetrix verify that SMBJ160CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ160CAHM3_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 SMBJ160CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ160CAHM3_B/H?
All SMBJ160CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160CAHM3_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 SMBJ160CAHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ160CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160CAHM3_B/H Tags
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