My Inquiry
My Account
Taiwan Semiconductor Corporation SMBJ36CH
- Part No.:
- SMBJ36CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CH.pdf
- Description:
- 600W, 44.5V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,068
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ36CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy ESD and surge protection in automotive and industrial power rails. It features a 36 V working stand-off voltage (VWM), 40.0–48.9 V breakdown voltage (VBR), 64.3 V maximum clamping voltage (VC) at 9.8 A peak pulse current (IPP), and 600 W peak pulse power (PPK) with sub-1 ps response time.
For engineers reviewing the SMBJ36CH datasheet, SMBJ36CH pinout, SMBJ36CH application, or SMBJ36CH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, low leakage (<1 µA at VWM), and thermal robustness (TJ max = 150°C) in harsh environments.
Technical Context
The SMBJ36CH operates as a bidirectional avalanche diode, symmetrically clamping transients above ±40.0 V in both polarities without polarity dependence. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
It meets automotive-grade requirements including AEC-Q101 qualification, moisture sensitivity level 1 (per J-STD-020), and ISO 7637-2 immunity for load dump and inductive switching events. Thermal performance is defined by RθJC = 10°C/W and RθJA = 55°C/W, supporting sustained operation up to 150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR min / max | 40.0 / 48.9 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPP | 64.3 V at 9.8 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPK | 600 W - Peak non-repetitive surge power handling per IEC 61000-4-5; supports high-energy transients. |
| ID @ VWM | <1 µA - Ultra-low leakage at rated stand-off voltage; avoids parasitic loading on sensitive circuits. |
| Response time | <1.0 ps - Near-instantaneous avalanche conduction; protects against fast ESD and EFT events. |
| TJ max | +150°C - Maximum junction temperature rating; enables use in under-hood automotive and industrial enclosures. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bi-directional configuration with cathode band omitted (no polarity marking required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical terminals - bidirectional clamping allows connection across any two points of a differential or single-ended line without orientation concern. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test conditions including temperature cycling, HTRB, and ESD; suitable for engine control, body electronics, and ADAS. |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT); eliminates need for external filtering in 12 V/24 V systems. |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature; prevents parameter drift under humidity or thermal cycling stress. |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; compatible with standard SMT assembly lines without special handling. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive; supports green manufacturing and end-of-life recycling requirements. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN/CAN node power inputs and signal lines from battery dump, load switching, and jump-start surges in passenger vehicles. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point to shunt energy before reaching transceiver ICs. Use Value: Limits clamped voltage to ≤64.3 V during 10/1000 µs pulses, preserving 36 V-rated power management ICs and ensuring system-level ISO 7637-2 compliance. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to motor drive noise and relay bounce. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) transient clamp across signal and ground, maintaining signal integrity while suppressing EFT bursts up to 4 kV. Use Value: Sub-1 ps response prevents overshoot-induced ADC saturation or op-amp latch-up, enabling reliable 16-bit measurement accuracy in noisy factory environments. |
| LED Driver Input Protection | ESD-Sensitive Communication Port |
Use Scenario: Front-end protection of constant-current LED drivers in streetlight and automotive lighting systems subjected to inductive kickback and lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression device placed between input bulk capacitor and driver IC, absorbing 600 W peak pulses without degradation. Use Value: Withstands ≥1000 surges at rated PPK per JEDEC standards, extending driver module MTBF beyond 10 years in outdoor deployments. |
Use Scenario: Board-level ESD protection for RS-485/RS-232 ports in medical monitors and building automation controllers handling frequent human contact. IC Role / Device Role / Timing Role: Bidirectional clamping diode across differential pair (A/B) and ground, meeting IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact). Use Value: Clamps ESD events to <65 V within 1 ps, preventing latch-up or gate oxide damage in transceiver ICs while adding <0.5 pF capacitance per line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ36CA | Same DO-214AC (SMA) package; 36 V VWM, 40–45.3 V VBR, 60.5 V VC @ 9.9 A; slightly lower clamping but smaller footprint. | Lower PPK (400 W) and higher RθJA (70°C/W); less suited for sustained high-temp environments. | Prefer when board space is constrained and thermal derating margin exists. |
| ON Semiconductor 1.5SMC36CA | DO-214AB (SMC) package; 36 V VWM, 40–44.2 V VBR, 58.1 V VC @ 10.3 A; higher IPP rating but larger footprint. | Higher PPK (1500 W), better thermal dissipation (RθJA = 40°C/W); over-specified for most SMB-class designs. | Choose only if legacy layout accommodates SMC or surge energy exceeds 600 W. |
Compared with SMBJ36CH, SMAJ36CA offers smaller size but reduced surge endurance and thermal margin, while 1.5SMC36CA delivers higher power handling at the cost of PCB area and assembly compatibility-SMBJ36CH balances AEC-Q101 compliance, DO-214AA manufacturability, and precise 600 W/36 V system matching.
Availability
SMBJ36CH is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial PLC I/O protection, and LED lighting surge mitigation requiring stable component supply across multi-year production cycles.
Supply support for SMBJ36CH 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, and power MOSFETs since 1979.
The SMBJH series was developed specifically for AEC-Q101-compliant automotive and industrial transient suppression, emphasizing robust glass-passivated junctions, tight VBR tolerances, and full ISO 7637-2 pulse validation.
FAQ
What is the polarity configuration of SMBJ36CH?
The SMBJ36CH is a bidirectional TVS diode with symmetrical anode/cathode terminals and no polarity marking. It clamps transients equally in both directions, making it ideal for AC lines, differential data buses, and unidirectional rails where reverse voltage risk exists. This differs from unidirectional variants like SMBJ36H, which require correct orientation relative to ground.
Does SMBJ36CH meet AEC-Q101 requirements for automotive use?
Yes, SMBJ36CH is explicitly qualified to AEC-Q101 Rev D, including stress tests for high-temperature reverse bias (HTRB), temperature cycling, and ESD (HBM ≥8 kV, CDM ≥1 kV). Its DO-214AA package, glass-passivated junction, and moisture sensitivity level 1 rating further validate its suitability for under-hood and chassis-mounted automotive applications.
What is the maximum clamping voltage of SMBJ36CH under surge conditions?
The SMBJ36CH has a maximum clamping voltage (VC) of 64.3 V at 9.8 A peak pulse current (IPP), measured with a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events and is guaranteed across the full operating temperature range (−55°C to +150°C).
How does SMBJ36CH compare to SMBJ36H in terms of electrical behavior?
SMBJ36CH is bidirectional with identical forward/reverse breakdown characteristics, while SMBJ36H is unidirectional and conducts only in reverse bias. SMBJ36CH exhibits no forward voltage drop specification (VF not defined), whereas SMBJ36H specifies VF = 3.5 V at 50 A. Use SMBJ36CH where polarity-agnostic protection is needed; use SMBJ36H only when forward conduction must be blocked.
Is SMBJ36CH compatible with lead-free reflow soldering processes?
Yes, SMBJ36CH is fully compatible with lead-free reflow profiles per J-STD-020. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its moisture sensitivity level 1 classification means it can be mounted directly from dry pack without baking-even after extended ambient exposure-reducing SMT line complexity and cost.
SMBJ36CH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 9.8A
- 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)
SMBJ36CH FAQ
1.How can I place an order for SMBJ36CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CH 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 SMBJ36CH reliable?
The price and inventory of SMBJ36CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36CH is usually 5 days.
3.What payment methods are accepted for SMBJ36CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CH?
SMBJ36CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CH 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 SMBJ36CH?
For technical support, including SMBJ36CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CH requirements.
6.How does Aetrix verify that SMBJ36CH is sourced from the original manufacturer or authorized distributors?
All SMBJ36CH 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 SMBJ36CH meets industry standards.
7.What is the process for return or replacement of SMBJ36CH?
All SMBJ36CH units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CH, 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 SMBJ36CH part is unused and in its original packaging.
Return procedure for SMBJ36CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CH 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…
