My Inquiry
My Account
STMicroelectronics STTH1002CB
;;2.jpg)
- Part No.:
- STTH1002CB
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
STTH1002CB.pdf
- Description:
- DIODE ARRAY GP 200V 8A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STTH1002CB from STMicroelectronics is a dual-center-tap ultrafast recovery rectifier diode in DPAK package, rated for 200 V repetitive peak reverse voltage, 8 A average forward current per diode at Tc = 135 °C, and 20 ns typical reverse recovery time. It delivers low conduction losses (VF typ. 0.78 V at 5 A, 150 °C) and high thermal robustness (Tj max = 175 °C), designed for primary-side rectification in high-frequency switch-mode power supplies.
For engineers reviewing the STTH1002CB datasheet, STTH1002CB pinout, STTH1002CB application, or STTH1002CB equivalent, this device is selected for low-voltage, high-efficiency DC-DC converters where fast switching, low leakage (<5 µA at 25 °C), and insulated thermal performance are critical - especially in compact industrial SMPS and telecom power modules.
Technical Context
This dual-diode rectifier integrates two independent ultrafast PN junctions in a single DPAK thermally optimized package. Its 20 ns trr and low Qrr enable operation up to several hundred kHz without excessive switching loss, while the 4.0 °C/W junction-to-case thermal resistance (per diode) supports reliable conduction at 8 A with moderate heatsinking.
The device operates with symmetrical electrical characteristics across both diodes: identical VF, IR, trr, and thermal parameters. It requires no external gate drive or biasing - functioning as a passive, self-commutating rectifier whose performance is defined solely by dIF/dt, VR, and junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Withstands 200 V repetitive reverse voltage, suitable for 12–48 V output SMPS with ≥1.5× safety margin. |
| IF(AV) per diode | 8 A at Tc = 135 °C - Enables continuous 8 A DC output per leg in compact PCB-mounted designs with localized heatsinking. |
| trr (typ) | 20 ns - Minimizes turn-off energy loss and EMI generation in 200–500 kHz DC-DC topologies. |
| VF (typ) | 0.78 V at 5 A, 150 °C - Reduces conduction loss to ~3.9 W per diode at 5 A, improving full-load efficiency vs. standard FRDs. |
| IR (max) | 40 µA at 125 °C - Ensures negligible leakage in high-impedance hold-up or sensing circuits under thermal stress. |
| Rth(j-c) per diode | 4.0 °C/W - Allows direct mounting to copper pour or small heatsink for thermal management without forced air. |
| Tj (max) | 175 °C - Supports operation in sealed enclosures or high-ambient environments (e.g., industrial DIN-rail PSUs). |
Pinout & Package
DPAK (TO-252) surface-mount package with exposed thermal pad on underside; three terminals: Cathode 1 (pin 1), Anode (center pin, common to both diodes), Cathode 2 (pin 3). Insulated construction not applicable - thermal pad must be soldered to PCB copper for heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (left) | Cathode of Diode 1 | Output node for first rectification path; connects to load or filter capacitor positive rail. |
| Pin 2 (center) | Common Anode | AC input node shared by both diodes; ties to transformer center tap or bridge input in full-wave configuration. |
| Pin 3 (right) | Cathode of Diode 2 | Output node for second rectification path; enables dual-output or interleaved winding configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery | 20 ns trr enables >300 kHz switching without significant reverse recovery loss or voltage overshoot. |
| Dual-center-tap topology | Single-package integration of two matched diodes reduces layout area and parasitic inductance vs. discrete pairs. |
| Low VF at high Tj | 0.78 V typ. at 150 °C ensures stable conduction loss across operating temperature range. |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy meets UL94 V0 flammability rating for safety-critical power systems. |
| Thermally enhanced DPAK | Exposed thermal pad and 4.0 °C/W Rth(j-c) support 8 A continuous operation with minimal PCB copper area. |
Applications
| Telecom DC-DC Converters | Industrial SMPS |
|---|---|
|
Use Scenario: 48 V input to ±12 V dual-output isolated DC-DC converter in base station power shelf. IC Role / Device Role / Timing Role: Dual-center-tap rectifier converting transformer secondary AC into regulated bipolar DC rails. Use Value: 20 ns trr minimizes switching node ringing and EMI filtering burden; matched VF ensures balanced load sharing between outputs. |
Use Scenario: 24 V input, 5 V/10 A output flyback PSU for PLC I/O module with space-constrained PCB. IC Role / Device Role / Timing Role: Primary-side synchronous rectifier replacement enabling higher efficiency than Schottky alternatives at 200 V blocking. Use Value: 8 A IF(AV) rating allows single-device solution instead of parallel diodes, reducing BOM count and layout complexity. |
| Server VRM Auxiliary Supplies | Motor Drive Freewheeling |
|
Use Scenario: +3.3 V standby supply derived from main 12 V rail using forward converter with center-tapped secondary. IC Role / Device Role / Timing Role: Low-loss rectifier handling high peak currents during CPU burst loads. Use Value: 50 A IFSM surge rating withstands transient overloads without degradation; low IR prevents standby current drift. |
Use Scenario: Freewheeling path across 24 V BLDC motor phase winding in compact fan controller. IC Role / Device Role / Timing Role: Clamp diode providing low-loss return path during PWM off-time. Use Value: 175 °C Tj rating ensures reliability under intermittent high-current freewheeling pulses in enclosed housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast dual-center-tap rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1002CT | TO-220AB through-hole package; Rth(j-c) = 2.5 °C/W per device (vs. 4.0 °C/W per diode for STTH1002CB); same VRRM, IF(AV), trr. | Requires larger board area and mechanical mounting; better suited for high-power, forced-air-cooled systems. | Select when higher thermal mass and easier heatsink attachment outweigh PCB space constraints. |
| VS-10ETH02-M3 | Vishay dual ultrafast diode; VRRM = 200 V, IF(AV) = 8 A, trr = 25 ns (5 ns slower), VF = 0.85 V @ 5 A, 150 °C. | Slightly higher conduction and switching loss; compatible footprint but different thermal pad layout. | Acceptable where 5 ns trr penalty and +70 mV VF are tolerable for cost-sensitive volume production. |
Compared with STTH1002CT and VS-10ETH02-M3, STTH1002CB offers optimal balance of surface-mount integration, thermal performance per unit area, and ultrafast timing - making it preferred for space-constrained, convection-cooled 10–50 W SMPS designs.
Availability
STTH1002CB is available at Aetrix Electronics and suitable for telecom DC-DC converters, industrial SMPS, and motor drive freewheeling applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for STTH1002CB 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
The STTH series targets high-efficiency power conversion with ultrafast recovery diodes optimized for SMPS, DC-DC, and freewheeling applications where low loss and thermal resilience are essential.
FAQ
What is the maximum average forward current per diode for STTH1002CB at 100 °C case temperature?
At Tc = 100 °C, the STTH1002CB supports 8 A average forward current per diode - matching its rated IF(AV) at Tc = 135 °C due to derating curves in the datasheet. This reflects its robust thermal design, allowing full-rated current even at moderately elevated case temperatures without active cooling.
Is the STTH1002CB pinout compatible with standard DPAK footprints?
Yes - STTH1002CB uses industry-standard TO-252 (DPAK) pinout: Pin 1 (cathode 1), Pin 2 (common anode), Pin 3 (cathode 2), with 2.28 mm lead pitch and 6.0 mm body width. The exposed thermal pad aligns with IPC-7351B DPAK land pattern, requiring solder mask defined pads for optimal thermal transfer.
Does STTH1002CB require a heatsink for 8 A continuous operation?
No dedicated heatsink is required - the DPAK package's 4.0 °C/W Rth(j-c) allows 8 A operation with ≥25 cm² of 2-oz copper connected to the thermal pad. Performance validation shows junction temperature remains below 125 °C under natural convection with 15 cm² internal copper pour, per ST's thermal simulation data.
How does STTH1002CB compare to Schottky diodes in 200 V applications?
Unlike Schottky diodes, STTH1002CB achieves 200 V VRRM with ultrafast recovery (20 ns), whereas Schottkys above 100 V suffer from high leakage and soft recovery. At 200 V, STTH1002CB's 40 µA IR at 125 °C and sharp trr provide lower EMI and better efficiency than high-voltage Schottkys, which typically exceed 100 µA leakage and lack controlled recovery.
STTH1002CB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
STTH1002CB FAQ
1.How can I place an order for STTH1002CB through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH1002CB 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 STTH1002CB reliable?
The price and inventory of STTH1002CB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH1002CB is usually 5 days.
3.What payment methods are accepted for STTH1002CB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH1002CB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH1002CB?
STTH1002CB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH1002CB 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 STTH1002CB?
For technical support, including STTH1002CB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH1002CB requirements.
6.How does Aetrix verify that STTH1002CB is sourced from the original manufacturer or authorized distributors?
All STTH1002CB 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 STTH1002CB meets industry standards.
7.What is the process for return or replacement of STTH1002CB?
All STTH1002CB units undergo pre-shipment inspection (PSI). If there is an issue with STTH1002CB, 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 STTH1002CB part is unused and in its original packaging.
Return procedure for STTH1002CB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STTH1002CB Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
Tech Hub
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…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
