My Inquiry
My Account
Taiwan Semiconductor Corporation SMBJ160H
- Part No.:
- SMBJ160H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ160H.pdf
- Description:
- 600W, 198V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,938
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ160H from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 160 V working stand-off voltage (VWM), 287 V maximum clamping voltage (VC) at 2.2 A peak pulse current, and 600 W peak pulse power rating with <1.0 ps response time. It is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and EFT immunity.
For engineers reviewing the SMBJ160H datasheet, SMBJ160H pinout, SMBJ160H application, or SMBJ160H equivalent, key selection criteria include its DO-214AA (SMB) package compatibility, unidirectional polarity marking, 150°C junction temperature rating, and verified compliance with automotive transients - critical for 12 V/24 V battery rail protection in ECUs, lighting modules, and body control units.
Technical Context
The SMBJ160H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (178–218 V @ 1 mA). Its glass-passivated junction ensures stable leakage (<1 µA at 160 V) and robust reliability under thermal cycling. The device uses a single-die construction in a DO-214AA package with matte tin-plated leads compliant with J-STD-002 solderability.
It delivers fast transient suppression with sub-picosecond response and clamps surges to ≤287 V at 2.2 A (10/1000 µs waveform), enabling protection of downstream DC-DC converters, microcontrollers, and CAN transceivers without overstressing input stages. Thermal resistance is specified at RθJC = 10 °C/W and RθJA = 55 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 178 V / 218 V @ 1 mA - Confirmed avalanche breakdown range ensuring margin over VWM |
| VC @ IPP | 287 V @ 2.2 A (10/1000 µs) - Clamped voltage seen by protected circuit during worst-case surge |
| PPK | 600 W - Peak non-repetitive surge energy handling capability per IEEE C62.35 |
| IR @ VWM | <1 µA - Negligible leakage current preserves system standby power integrity |
| TJ max | +150 °C - Enables operation in under-hood automotive environments |
| Package | DO-214AA (SMB) - Industry-standard surface-mount footprint compatible with automated assembly |
Pinout & Package
DO-214AA (SMB) package: molded epoxy case meeting UL 94V-0, cathode band marked on one end for unidirectional polarity identification. Matte tin-plated leads ensure reliable solder joint formation per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Reverse-biased surge conduction terminal | Connected to protected line (e.g., 12 V rail); conducts when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| ISO 7637-2 compliance | Proven immunity to load dump (Pulse 5a/b), jump start (Pulse 4), and EFT (Pulses 1/2a/2b/3a/3b) |
| Glass-passivated junction | Enhanced stability of VBR and leakage across temperature and lifetime |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement prior to reflow - simplifies SMT manufacturing |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green electronics |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in BCMs against load dump transients up to ±120 V and jump-start events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input stage to clamp surges before they reach regulator ICs. Use Value: Limits voltage to ≤287 V during 600 W pulses, preventing latch-up or destruction of buck converter controllers rated for 36 V input. | Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to inductive switching noise from solenoids and relays. IC Role / Device Role / Timing Role: Standoff protection device shunting fast-rising transients (>1 kV/µs) away from optocoupler or Schmitt-trigger input circuits. Use Value: Sub-1 ps response ensures clamping initiates before input logic thresholds are violated, maintaining signal integrity and preventing false triggering. |
| LED Headlamp Driver Power Stage | Automotive CAN Transceiver Power Rail |
Use Scenario: Shielding buck/boost LED driver ICs from alternator ripple and load dump in adaptive front-lighting systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on the high-side switch node, absorbing energy from inductive kickback during PWM dimming. Use Value: 600 W peak power rating sustains repeated 10/1000 µs surges without degradation, supporting ASIL-B functional safety requirements. | Use Scenario: Protecting the VCC pin of CAN FD transceivers (e.g., TJA1044) connected to vehicle battery networks. IC Role / Device Role / Timing Role: Secondary surge limiter downstream of main rail TVS, providing localized clamping near sensitive interface ICs. Use Value: Low leakage (<1 µA) avoids loading the 5 V bias rail, while 287 V clamping prevents transceiver damage during ISO 7637-2 Pulse 2b events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A | Lower VBR range (178–197 V) and lower clamping voltage (259 V @ 2.4 A) | Better suited for tighter voltage margin designs where lower clamping is prioritized over higher surge headroom | Select SMBJ160A if system overvoltage tolerance is ≤260 V and lower VBR improves noise immunity |
| SMCJ160H | Same VWM/VBR but higher PPK (1500 W) and larger DO-214AB (SMC) package | Used where higher surge energy (e.g., ISO 16750-2 long-duration pulses) requires greater thermal mass | Choose SMCJ160H only if board space allows larger footprint and 1500 W rating is required for extended pulse immunity |
Compared with SMBJ160A and SMCJ160H, the SMBJ160H offers balanced 600 W surge capacity in the compact DO-214AA footprint, making it optimal for space-constrained automotive modules requiring AEC-Q101 validation and ISO 7637-2 compliance without over-engineering.
Availability
SMBJ160H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, LED lighting drivers, and CAN bus power rail protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMBJ160H 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and power management devices.
The SMBJH series was developed specifically for automotive and industrial surge immunity, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust glass-passivated junction performance in surface-mount packages.
FAQ
What is the polarity configuration of SMBJ160H?
The SMBJ160H is a unidirectional TVS diode, with cathode indicated by a band on the DO-214AA package. It conducts only when reverse voltage exceeds its breakdown range (178–218 V), making it suitable for DC power rail protection where polarity is fixed. Bidirectional variants require CH or CAH suffixes (e.g., SMBJ160CH), which are not applicable to SMBJ160H.
Does SMBJ160H meet automotive qualification standards?
Yes, SMBJ160H is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for electrical fast transients and load-dump immunity. This validation is documented in Taiwan Semiconductor's official SMBJH series datasheet (Version A2102), confirming suitability for under-hood and body electronics applications.
What is the maximum clamping voltage of SMBJ160H under surge conditions?
The SMBJ160H has a maximum clamping voltage (VC) of 287 V when subjected to a 10/1000 µs surge waveform at 2.2 A peak pulse current. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during standardized transient events.
Can SMBJ160H be used in bidirectional signal line protection?
No, SMBJ160H is unidirectional only and must not be used on AC or bidirectional signal lines. For bipolar applications such as CAN bus data lines or RS-485, a bidirectional variant like SMBJ160CH (with CH suffix) is required. Using SMBJ160H in such roles risks forward conduction during normal signal swings and failure to suppress negative transients.
What is the thermal resistance specification for SMBJ160H?
SMBJ160H has a junction-to-case thermal resistance (RθJC) of 10 °C/W and a junction-to-ambient thermal resistance (RθJA) of 55 °C/W, measured under standard JEDEC test conditions. These values enable accurate thermal modeling in PCB layouts with recommended pad copper area per Taiwan Semiconductor's suggested footprint in the datasheet.
SMBJ160H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJH
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 287V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- 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 (SMB)
SMBJ160H FAQ
1.How can I place an order for SMBJ160H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ160H 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 SMBJ160H reliable?
The price and inventory of SMBJ160H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ160H is usually 5 days.
3.What payment methods are accepted for SMBJ160H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ160H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ160H?
SMBJ160H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ160H 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 SMBJ160H?
For technical support, including SMBJ160H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ160H requirements.
6.How does Aetrix verify that SMBJ160H is sourced from the original manufacturer or authorized distributors?
All SMBJ160H 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 SMBJ160H meets industry standards.
7.What is the process for return or replacement of SMBJ160H?
All SMBJ160H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ160H, 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 SMBJ160H part is unused and in its original packaging.
Return procedure for SMBJ160H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ160H 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
