My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMC39AHE3_A/I
- Part No.:
- TPSMC39AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC39AHE3_A/I.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,091
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMC39AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-reliability overvoltage protection of sensitive electronics. It features 39 V breakdown voltage (VBR = 37.1–41.0 V at 1 mA), 33.3 V stand-off voltage (VWM), 53.9 V clamping voltage (VC) at 27.8 A peak pulse current, and 1500 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and rated for TJ = –65 °C to +185 °C operation - used in automotive power line and sensor interface protection.
For engineers reviewing the TPSMC39AHE3_A/I datasheet, TPSMC39AHE3_A/I pinout, TPSMC39AHE3_A/I application, or TPSMC39AHE3_A/I equivalent, key selection criteria include its unidirectional polarity, 1500 W surge rating, 33.3 V working voltage, AEC-Q101 qualification, and SMC package compatibility with high-temperature automotive PCB layouts.
Technical Context
The TPSMC39AHE3_A/I operates as a silicon avalanche diode with passivated anisotropic rectifier technology, delivering fast response time (<1 ns) and low incremental surge resistance to clamp transient spikes before downstream ICs are damaged. Its junction temperature capability up to 185 °C enables stable performance under under-hood automotive thermal stress.
It is specified for non-repetitive 10/1000 μs waveform surges per IEC 61000-4-5 and ANSI/IEEE C62.35, with clamping behavior validated at IPPM = 27.8 A and VC = 53.9 V. The device meets MSL Level 1 (260 °C reflow peak) and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 37.1 / 39.0 / 41.0 V at 1 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 33.3 V - maximum continuous reverse voltage the device blocks without leakage exceeding 1 μA |
| VC @ IPPM | 53.9 V at 27.8 A - clamped voltage seen by protected circuit during 1500 W transient event |
| PPPM | 1500 W (10/1000 μs) - peak surge power handling capacity under standardized lightning/surge test waveform |
| TJ max. | +185 °C - enables operation in high-temperature environments such as automotive engine control units |
| Polarity | Unidirectional - protects against positive transients only; cathode band denotes terminal polarity |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.13 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction or transient clamping | Connected to protected line's lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Current exit during clamping; marked by color band | Connected to protected line's higher-potential side (e.g., supply rail or signal line) - determines clamping polarity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| 185 °C junction rating | Supports sustained operation in under-hood environments without derating loss up to maximum ambient |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges on 12 V/24 V systems |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream MOSFETs, MCUs, and CAN transceivers during clamping |
| MSL Level 1 | Compatible with standard lead-free reflow profiles up to 260 °C peak without preconditioning |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive surges above 33.3 V. Use Value: Limits peak voltage to ≤53.9 V during 1500 W transients, preventing damage to 36 V-rated DC-DC converters and microcontrollers in TPSMC39AHE3_A/I-equipped modules. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: TVS diode mounted at connector entry point to shunt fast transients before reaching precision ADC front-end. Use Value: Sub-1 ns response and 53.9 V clamping ensure sensor signal integrity remains intact during ±8 kV contact ESD events, preserving measurement accuracy in TPSMC39AHE3_A/I-protected designs. |
| Telecom Power Supply Input | Consumer Device USB Port Protection |
Use Scenario: Safeguarding AC/DC adapter inputs in telecom base station power supplies against lightning-induced surges. IC Role / Device Role / Timing Role: Primary-stage TVS on 48 V input bus, coordinated with MOVs and fuses for staged overvoltage defense. Use Value: 185 °C rating allows placement near hot-running transformers; 1500 W rating handles multi-kA induced surges without thermal runaway in TPSMC39AHE3_A/I-based architectures. | Use Scenario: Adding secondary-level surge immunity to USB Type-A ports in smart home hubs exposed to user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to absorb +8 kV ESD while maintaining <1 μA leakage at 5 V nominal. Use Value: 33.3 V VWM ensures no interference with 5 V USB signaling; 53.9 V clamping prevents latch-up in TPSMC39AHE3_A/I-protected USB controllers during real-world handling 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 |
|---|---|---|---|
| SMAJ36A-E3/57T | Lower PPPM (400 W), lower VBR (36 V min), SMA package (smaller footprint, lower thermal mass) | Not AEC-Q101 qualified; limited to commercial/industrial use; insufficient for automotive load dump | Select only for cost-sensitive, non-automotive applications where 400 W surge margin is adequate and board space is constrained. |
| TPSMC36AHE3_A/I | Lower VBR (34.2–37.8 V), lower VC (49.9 V), same package, AEC-Q101 qualified | Better suited for 36 V nominal systems (e.g., 24 V industrial rails with 30 % tolerance); tighter clamping margin | Choose when protecting circuits with lower absolute maximum voltage ratings - TPSMC39AHE3_A/I offers higher standoff for 39 V system headroom. |
Compared with SMAJ36A-E3/57T and TPSMC36AHE3_A/I, the TPSMC39AHE3_A/I provides the highest VWM (33.3 V) and VBR among the three, making it optimal for 39 V-rated systems requiring robust AEC-Q101-compliant surge immunity without sacrificing clamping performance.
Availability
TPSMC39AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply inputs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for TPSMC39AHE3_A/I 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 reliability, high-temperature operation, and automotive qualification.
The TPSMC39AHE3_A/I belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for demanding automotive and industrial environments where 1500 W surge immunity and 185 °C junction operation are mandatory design requirements.
FAQ
What is the breakdown voltage range of the TPSMC39AHE3_A/I?
The TPSMC39AHE3_A/I has a guaranteed breakdown voltage (VBR) range of 37.1 V to 41.0 V at 1 mA test current, with a nominal value of 39.0 V. This range ensures consistent avalanche initiation across manufacturing lots and temperature extremes, critical for predictable clamping behavior in TPSMC39AHE3_A/I-protected circuits.
Is the TPSMC39AHE3_A/I AEC-Q101 qualified?
Yes, the TPSMC39AHE3_A/I is AEC-Q101 qualified. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified construction, validated per the full stress test schedule including HTGB, H3TRB, and temperature cycling - confirming suitability for automotive powertrain and body electronics applications using TPSMC39AHE3_A/I.
What is the clamping voltage of the TPSMC39AHE3_A/I at its rated peak pulse current?
The TPSMC39AHE3_A/I clamps to a maximum of 53.9 V at its rated peak pulse current of 27.8 A (10/1000 μs waveform). This VC value defines the upper voltage limit imposed on protected circuitry during worst-case surge events, directly enabling safe operation of 36 V–40 V rated components downstream of the TPSMC39AHE3_A/I.
Does the TPSMC39AHE3_A/I have unidirectional or bidirectional polarity?
The TPSMC39AHE3_A/I is unidirectional only, with polarity indicated by a cathode band. It conducts and clamps only for positive transients relative to its cathode terminal. Bidirectional variants are not offered in the TPSMC39AHE3_A/I family - this polarity choice simplifies layout in DC-biased protection schemes and avoids reverse leakage concerns in TPSMC39AHE3_A/I deployments.
What package type does the TPSMC39AHE3_A/I use, and what are its key mechanical features?
The TPSMC39AHE3_A/I uses the SMC (DO-214AB) package: 8.13 mm × 6.22 mm body with 2.62 mm height, matte tin-plated leads compliant with J-STD-002 and JESD22-B102, UL 94 V-0 molding compound, and MSL Level 1 rating for 260 °C reflow. These features ensure mechanical robustness, solderability, and thermal reliability in TPSMC39AHE3_A/I-based production assemblies.
TPSMC39AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 27.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
TPSMC39AHE3_A/I FAQ
1.How can I place an order for TPSMC39AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC39AHE3_A/I 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 TPSMC39AHE3_A/I reliable?
The price and inventory of TPSMC39AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC39AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC39AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC39AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC39AHE3_A/I?
TPSMC39AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC39AHE3_A/I 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 TPSMC39AHE3_A/I?
For technical support, including TPSMC39AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC39AHE3_A/I requirements.
6.How does Aetrix verify that TPSMC39AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC39AHE3_A/I 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 TPSMC39AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC39AHE3_A/I?
All TPSMC39AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC39AHE3_A/I, 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 TPSMC39AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC39AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC39AHE3_A/I 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 …
