My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPC24HM3/87A
- Part No.:
- TPC24HM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC24HM3/87A.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,101
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPC24HM3/87A from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial electronics protection. It features a breakdown voltage of 22.8–25.2 V at 1.0 mA, clamping voltage of 33.2 V at 45.2 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC24HM3/87A datasheet, TPC24HM3/87A pinout, TPC24HM3/87A application, or TPC24HM3/87A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, and suitability for protecting MOSFETs, sensor signal lines, and IC power rails against inductive switching transients.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver fast response time and low incremental surge resistance. Its unidirectional architecture enables robust clamping during positive-going transients while maintaining low leakage (<1.0 μA at 20.5 V) across temperature.
The device is rated for 10/1000 μs waveform peak pulse power of 1500 W and supports surge currents up to 45.2 A. Its thermal design accommodates junction temperatures from –65 °C to +185 °C, meeting stringent automotive reliability requirements per AEC-Q101.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 V / 24.0 V / 25.2 V at 1.0 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 20.5 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 33.2 V at 45.2 A - clamped voltage during 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W - peak pulse power handling capability under standardized 10/1000 μs waveform |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm typical height), AEC-Q101 qualified |
| MSL Level | Level 1 - no moisture sensitivity restrictions, compatible with standard reflow profiles |
Pinout & Package
SMPC (TO-277A) is a 3-terminal surface-mount package with cathode band marking. Dimensions conform to JEDEC TO-277A: 4.80 × 4.40 × 1.10 mm (L × W × H), featuring matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Cathode | Connected to protected circuit's positive rail; conducts during overvoltage events to clamp to VC |
| Terminal 2 | Cathode | Parallel cathode path enabling higher surge current handling without layout asymmetry |
| Terminal 3 | Anode | Connected to ground or low-impedance return path; completes clamping loop during transient |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Junction passivation optimized | Reduces leakage drift and improves long-term stability under thermal stress and high-humidity conditions |
| Very low profile (1.1 mm) | Enables use in space-constrained modules such as ADAS camera housings and compact motor controllers |
| Meets MSL Level 1 | Eliminates bake requirements prior to SMT assembly, reducing manufacturing cost and cycle time |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive ICs |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in body control modules and junction boxes from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps transients to ≤33.2 V, preventing damage to downstream regulators rated for 36 V absolute maximum. | Use Scenario: Safeguarding gate drivers and current-sense amplifiers in servo drives exposed to back-EMF spikes. IC Role / Device Role / Timing Role: Parallel-mounted TVS across motor phase outputs to absorb energy from rapid current interruption. Use Value: Handles 45.2 A peak pulse current with <1 ns response, limiting voltage overshoot before protection circuits activate. |
| Automotive Sensor Signal Lines | Telecom Power Interface |
Use Scenario: Shielding LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and chassis ground near connector entry point. Use Value: Maintains signal integrity with minimal loading due to low leakage (<1.0 μA) and fast clamping action. | Use Scenario: Protecting PoE-powered equipment inputs (e.g., IP cameras, wireless access points) from lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Primary front-end TVS on 48 V DC input rail upstream of DC-DC conversion stage. Use Value: Withstands repeated 1500 W pulses per IEC 61000-4-5, extending system field life in outdoor deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower PPPM (400 W), SMA package (higher profile, 2.3 mm), non-AEC-Q101 | Not suitable for automotive under-hood use; limited to consumer/industrial board-level protection | Select when cost sensitivity outweighs automotive qualification and surge rating requirements |
| TPC24HM3_A | Same electrical specs and package; differs only in tape-and-reel packaging code (A vs. 87A) and revision marking | No functional or application difference; identical performance and mounting | Choose based on distributor inventory and preferred reel size (7″ vs. 13″) |
Compared with SMAJ24A and TPC24HM3_A, the TPC24HM3/87A provides certified automotive reliability and 3.75× higher surge power handling than SMAJ24A, while offering identical performance to TPC24HM3_A with traceable revision control via the "87A" suffix.
Availability
TPC24HM3/87A is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, and telecom power interface applications requiring stable component supply, AEC-Q101 compliance, and 1500 W transient immunity.
Supply support for TPC24HM3/87A 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 and application-specific performance.
The TPC series is part of Vishay's PAR® family of high-power TVS diodes, engineered specifically for automotive and industrial systems demanding AEC-Q101 qualification, high-temperature operation, and robust transient immunity.
FAQ
What is the breakdown voltage tolerance for TPC24HM3/87A?
The TPC24HM3/87A has a specified breakdown voltage range of 22.8 V to 25.2 V at 1.0 mA test current, with a nominal value of 24.0 V. This ±5% tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage detection in safety-critical automotive circuits where TPC24HM3/87A is deployed.
Is TPC24HM3/87A suitable for bidirectional transient protection?
No, TPC24HM3/87A is unidirectional only and must be used with correct polarity-cathodes toward the protected line, anode to ground. For bidirectional protection, Vishay offers separate devices like the P6SMB24CA. Using TPC24HM3/87A in reverse-biased configuration will not provide clamping and may lead to failure; this limitation is inherent to its design and explicitly stated in the TPC24HM3/87A datasheet.
Does TPC24HM3/87A require derating above 25 °C ambient temperature?
Yes, TPC24HM3/87A requires derating of peak pulse power and current above TA = 25 °C, per Figure 2 in the official datasheet. At 85 °C ambient, its 1500 W PPPM rating drops to approximately 750 W. Engineers must apply this derating curve when designing for high-temperature environments such as engine compartments, where TPC24HM3/87A junction temperature can approach its 185 °C limit.
What does the "87A" suffix indicate in TPC24HM3/87A?
Within the HM3_X naming convention, the "87A" suffix denotes the revision code and packaging variant of the TPC24HM3/87A. "87" identifies the specific mold lot and process revision, while "A" confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification. This marking ensures traceability and compliance verification for TPC24HM3/87A in automotive production audits.
Can TPC24HM3/87A be used in parallel to increase surge current handling?
While electrically possible, paralleling multiple TPC24HM3/87A units is not recommended without external balancing-due to parametric variation in VBR (22.8–25.2 V) and dynamic impedance. Uneven current sharing may cause one device to absorb disproportionate energy and fail prematurely. For higher surge ratings, Vishay specifies single-device solutions like TPC30A or TPC33A instead of relying on TPC24HM3/87A parallel configurations.
TPC24HM3/87A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 43.2A
- 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:
- TO-277A (SMPC)
TPC24HM3/87A FAQ
1.How can I place an order for TPC24HM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC24HM3/87A 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 TPC24HM3/87A reliable?
The price and inventory of TPC24HM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC24HM3/87A is usually 5 days.
3.What payment methods are accepted for TPC24HM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC24HM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC24HM3/87A?
TPC24HM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC24HM3/87A 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 TPC24HM3/87A?
For technical support, including TPC24HM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC24HM3/87A requirements.
6.How does Aetrix verify that TPC24HM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC24HM3/87A 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 TPC24HM3/87A meets industry standards.
7.What is the process for return or replacement of TPC24HM3/87A?
All TPC24HM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC24HM3/87A, 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 TPC24HM3/87A part is unused and in its original packaging.
Return procedure for TPC24HM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC24HM3/87A 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 …
