My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMA33A61HE3J_B/H
- Part No.:
- TPSMA33A61HE3J_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA33A61HE3J_B/H.pdf
- Description:
- TVS DIODE 400W SMA DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,549
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMA33A61HE3J_B/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) in SMA (DO-214AC) package, rated for 33 V breakdown voltage (VBR = 31.4–34.7 V), 400 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - deployed for clamping inductive switching transients on automotive sensor signal lines and power rails.
For engineers reviewing the TPSMA33A61HE3J_B/H datasheet, TPSMA33A61HE3J_B/H pinout, TPSMA33A61HE3J_B/H application, or TPSMA33A61HE3J_B/H equivalent, key selection criteria include clamping voltage (VC = 45.7 V at IPPM), unidirectional polarity, AEC-Q101 qualification status, and thermal derating above 25 °C ambient.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge conditions. Its 10/1000 µs waveform rating (400 W) and low incremental surge resistance enable robust protection against lightning-induced surges and inductive load switching events in automotive ECUs.
The device operates across –65 °C to +185 °C, with a temperature coefficient of VBR = +0.089 %/°C, and meets MSL Level 1 per J-STD-020 (peak reflow = 260 °C). It is RoHS-compliant and qualified to AEC-Q101 when ordered with HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 31.4 V / 33.0 V / 34.7 V - ensures reliable breakdown initiation within defined tolerance band at 1 mA test current |
| VWM | 28.2 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 45.7 V - clamping voltage during 8.8 A peak pulse (10/1000 µs), limiting downstream IC stress |
| PPPM | 400 W - peak pulse power handling capability under standardized surge waveform |
| TJ max. | +185 °C - enables operation in under-hood automotive environments without thermal shutdown |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation in circuit |
| Package | SMA (DO-214AC) - surface-mount outline with 0.208" x 0.157" footprint and matte tin-plated leads |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: two terminals, cathode marked by color band. Mounting uses 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per JEDEC standard layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge return path | Connected to system ground or low-impedance reference; carries full surge current during clamping |
| Anode | Protected line input | Connected to signal/power line being protected; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Reduces long-term parameter drift and leakage increase under high-temperature bias stress |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive applications including engine control, ADAS sensors, and body electronics |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard SMT reflow profiles up to 260 °C peak |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic |
| 10/1000 µs waveform compliance | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive systems |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before reaching sensitive interface ICs. Use Value: Limits clamped voltage to ≤45.7 V, preserving integrity of 5 V tolerant receivers and preventing latch-up in microcontrollers. | Use Scenario: Shielding digital input channels of programmable logic controllers from relay coil flyback and motor drive noise in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC input lines, absorbing repetitive 400 W surges without degradation over >10⁵ cycles. Use Value: Maintains VWM = 28.2 V margin above nominal 24 V supply, ensuring zero leakage-induced false triggering during steady-state operation. |
| Telecom Power Rail Clamping | Consumer Appliance Motor Control |
Use Scenario: Safeguarding PoE-powered Ethernet PHYs and DC-DC converters against lightning-induced surges on 48 V telecom power buses. IC Role / Device Role / Timing Role: Primary surge suppression element on secondary-side 48 V rail, coordinated with upstream GDT or MOV for staged protection. Use Value: Delivers 45.7 V clamping at 8.8 A, keeping downstream 50 V-rated MOSFETs and regulators within safe SOA limits. | Use Scenario: Suppressing commutation spikes from universal motor brushes in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Fast-response TVS across motor winding terminals to quench inductive kickback before it couples into MCU power domains. Use Value: With 185 °C TJ max and 0.089 %/°C VBR TC, maintains stable clamping performance inside thermally constrained appliance enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A | Same SMA package, 33 V VBR, but lower PPPM = 400 W (same rating), non-AEC-Q101 qualified, higher VC = 53.3 V | Not suitable for automotive AEC-Q101-mandated designs; acceptable for industrial/commercial use where qualification is not required | Select SMAJ33A only if AEC-Q101 is unnecessary and higher clamping voltage is tolerable |
| SMCJ33A | Larger SMC (DO-214AB) package, same VBR/VC, higher PPPM = 1500 W, same AEC-Q101 option available (HE3) | Requires PCB layout change due to larger footprint; used where higher single-pulse energy absorption is needed | Choose SMCJ33A when surge threat level exceeds 400 W or when thermal mass must be increased for repeated events |
Compared with SMAJ33A and SMCJ33A, the TPSMA33A61HE3J_B/H provides AEC-Q101 qualification in the compact SMA footprint while maintaining tight VC = 45.7 V - making it optimal for space-constrained automotive modules where both reliability and clamping precision are critical.
Availability
TPSMA33A61HE3J_B/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom power rail protection requiring stable component supply and AEC-Q101 traceability.
Supply support for TPSMA33A61HE3J_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, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade components.
The TPSMA series belongs to Vishay's PAR® (Precision Avalanche Regulator) transient suppression platform, engineered specifically for high-temperature stability and repeatable clamping in harsh automotive and industrial environments.
FAQ
What is the exact breakdown voltage range for TPSMA33A61HE3J_B/H?
The TPSMA33A61HE3J_B/H has a guaranteed breakdown voltage (VBR) range of 31.4 V to 34.7 V at 1.0 mA test current, with a nominal value of 33.0 V. This range is measured per ANSI/IEEE C62.35 and reflects manufacturing tolerance at 25 °C ambient; actual VBR shifts predictably with temperature using αT = +0.089 %/°C.
Is TPSMA33A61HE3J_B/H AEC-Q101 qualified?
Yes, TPSMA33A61HE3J_B/H is AEC-Q101 qualified. The "HE3" suffix in the part number explicitly denotes RoHS-compliant, AEC-Q101-qualified construction. Qualification covers temperature cycling, humidity testing, and surge endurance per the AEC-Q101 standard, confirming suitability for automotive under-hood and cabin applications.
What is the clamping voltage of TPSMA33A61HE3J_B/H at its rated peak pulse current?
The clamping voltage (VC) of TPSMA33A61HE3J_B/H is 45.7 V at its rated peak pulse current (IPPM) of 8.8 A, tested with a 10/1000 µs waveform. This value defines the maximum voltage seen by downstream circuitry during a worst-case surge event and is critical for ensuring protected ICs remain within their absolute maximum ratings.
Does TPSMA33A61HE3J_B/H have bidirectional polarity?
No, TPSMA33A61HE3J_B/H is unidirectional only. It conducts and clamps only when the cathode is more positive than the anode - i.e., during positive transients on the anode side. For bidirectional protection, two devices in series opposition or a dedicated bidirectional TVS (e.g., TPSMA33CA) would be required.
What is the maximum operating junction temperature for TPSMA33A61HE3J_B/H?
The maximum operating junction temperature (TJ) for TPSMA33A61HE3J_B/H is +185 °C. This rating enables reliable operation in high-ambient environments such as automotive engine compartments and industrial motor drives, and supports extended lifetime under thermal stress when mounted per recommended pad layout.
TPSMA33A61HE3J_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 8.8A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
TPSMA33A61HE3J_B/H FAQ
1.How can I place an order for TPSMA33A61HE3J_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA33A61HE3J_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 TPSMA33A61HE3J_B/H reliable?
The price and inventory of TPSMA33A61HE3J_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 TPSMA33A61HE3J_B/H is usually 5 days.
3.What payment methods are accepted for TPSMA33A61HE3J_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA33A61HE3J_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA33A61HE3J_B/H?
TPSMA33A61HE3J_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA33A61HE3J_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 TPSMA33A61HE3J_B/H?
For technical support, including TPSMA33A61HE3J_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA33A61HE3J_B/H requirements.
6.How does Aetrix verify that TPSMA33A61HE3J_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMA33A61HE3J_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 TPSMA33A61HE3J_B/H meets industry standards.
7.What is the process for return or replacement of TPSMA33A61HE3J_B/H?
All TPSMA33A61HE3J_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA33A61HE3J_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 TPSMA33A61HE3J_B/H part is unused and in its original packaging.
Return procedure for TPSMA33A61HE3J_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA33A61HE3J_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 …
