20DZ6V8…20DZ180
IPRS Băneasa
- Also known as
- 20DZ6V8, 20DZ8V2, 20DZ10, 20DZ12, 20DZ15, 20DZ18, 20DZ22, 20DZ27, 20DZ33, 20DZ39, 20DZ47, 20DZ56, 20DZ68, 20DZ82, 20DZ100, 20DZ120, 20DZ150, 20DZ180
- Manufacturer
- IPRS Băneasa
- Country
- Romania
- Year
- Unknown
- Category
- Components
- Type
- Diodes
- Documentation score
- 1/5
- Last edited
- 25 OCT 2026
Specifications
- Type
- Zener diode
- Zener voltage, nominal (VZT)
- 6.8–180 V (see Variants)
- Zener voltage, min.
- 6.1–160 V (see Variants)
- Zener voltage, max.
- 7.5–205 V (see Variants)
- Test current (IZT)
- 28–730 mA (see Variants)
- Differential resistance (rZ)
- 1–280 Ω (see Variants)
- Temperature coefficient of VZ (αVZ)
- 18 different values (see Variants)
- Max. Zener current (IZM)
- 100–2700 mA (see Variants)
- Power dissipation (Ptot)
- 20 W
- Max. junction temperature (Tj)
- 150 °C
- Package
- DO-5 (F-10M)
Variants (18)
| Compare | ||||||||
|---|---|---|---|---|---|---|---|---|
| 20DZ6V8 | 6.8 | 6.1 | 7.5 | 730 | 1 | 3 ×10⁻⁴/°C | 2700 | |
| 20DZ8V2 | 8.2 | 7.4 | 9.1 | 610 | 1.2 | 4 ×10⁻⁴/°C | 2200 | |
| 20DZ10 | 10 | 9 | 11 | 500 | 1.8 | 5 ×10⁻⁴/°C | 1850 | |
| 20DZ12 | 12 | 10.5 | 13.5 | 420 | 2.4 | 5.7 ×10⁻⁴/°C | 1540 | |
| 20DZ15 | 15 | 13 | 16.5 | 330 | 3.9 | 6.3 ×10⁻⁴/°C | 1250 | |
| 20DZ18 | 18 | 16 | 20.5 | 280 | 5.7 | 6.8 ×10⁻⁴/°C | 1000 | |
| 20DZ22 | 22 | 20 | 24.5 | 230 | 6.5 | 7.3 ×10⁻⁴/°C | 830 | |
| 20DZ27 | 27 | 24 | 30 | 180 | 9 | 7.7 ×10⁻⁴/°C | 670 | |
| 20DZ33 | 33 | 29 | 36 | 150 | 11 | 8 ×10⁻⁴/°C | 550 | |
| 20DZ39 | 39 | 35 | 43 | 130 | 13 | 8.3 ×10⁻⁴/°C | 460 | |
| 20DZ47 | 47 | 42 | 52 | 100 | 16 | 8.6 ×10⁻⁴/°C | 390 | |
| 20DZ56 | 56 | 50 | 62 | 90 | 18 | 8.8 ×10⁻⁴/°C | 320 | |
| 20DZ68 | 68 | 61 | 75 | 73 | 24 | 9 ×10⁻⁴/°C | 270 | |
| 20DZ82 | 82 | 74 | 91 | 60 | 33 | 9.2 ×10⁻⁴/°C | 220 | |
| 20DZ100 | 100 | 90 | 110 | 50 | 56 | 9.3 ×10⁻⁴/°C | 180 | |
| 20DZ120 | 120 | 105 | 135 | 42 | 76 | 9.4 ×10⁻⁴/°C | 154 | |
| 20DZ150 | 150 | 130 | 165 | 33 | 150 | 9.6 ×10⁻⁴/°C | 125 | |
| 20DZ180 | 180 | 160 | 205 | 28 | 280 | 9.8 ×10⁻⁴/°C | 100 |
Click a column heading to sort. „+” adds a variant to the comparison (20DZ6V8…20DZ180).
Description
The 20DZ6V8…20DZ180 is a series of 20 W Zener diodes made in Romania by IPRS Băneasa, listed in the Agenda radioelectronistului (2nd edition, 1989) with nominal Zener voltages of 6.8–180 V and a power dissipation of 20 W, in a DO-5 (F-10M) package [1]. Its codes are in the Variants table; the package drawing is in the Gallery.
The codes are printed „20 DZ 6V8” … „20 DZ 180”. The table gives the Zener voltage VZT (minimum, nominal, maximum), the test current IZT, the differential resistance rZM, the temperature coefficient αVZ and the maximum Zener current IZM [1].
The package drawing also marks the terminals for codes with R: the stud is marked „C / A” and the lead „A (cod fără R) / C (cod cu R)”, i.e. the stud is the cathode for the codes without R and the anode for the codes with R, although the table lists no codes with R [1].
Coded as (IPRS Băneasa code for Zener diodes of 1 W and more, NTR 19036-80) [2]:
| Part | Meaning |
|---|---|
| 20 | dissipated power PR in W (the coding table lists 1, 4, 10 and 20 W) |
| DZ | function: Zener diode |
| 6V8 … 180 | nominal stabilization voltage VZT in V (standardized values) |
The 1st edition of the Agenda (1983) prints the 20 DZ 8V2 as „20 DZ 8” [3].
The I.P.R.S. Băneasa Full Line Condensed Catalog (1990) lists the 20DZ6V8…20DZ180 (18 codes) among the „20 W @ TC = 25 °C voltage regulator diodes” of its „Zener” section [4]. The catalog values this page did not have (TJM) are under Variants [4]. In this table VZ (min–max) and rZT (max) are given at IZT, and the temperature coefficient in units of 0.0001 1/°C; Ptot = 20 W at TC = 25 °C, TJM 150 °C, DO-5 case [4]. For the 20DZ10 the catalog gives IZM 1800 mA (elsewhere on this page: 1850 mA) [4]. For the 20DZ22 the catalog gives rZT 6.9 Ω (elsewhere on this page: 6.5 Ω) [4]. For the 20DZ27 the catalog gives IZM 665 mA (elsewhere on this page: 670 mA) [4]. For the 20DZ33 the catalog gives IZM 555 mA (elsewhere on this page: 550 mA) [4]. For the 20DZ39 the catalog gives IZT 120 mA; IZM 465 mA (elsewhere on this page: IZT 130 mA; IZM 460 mA) [4]. For the 20DZ68 the catalog gives IZM 265 mA (elsewhere on this page: 270 mA) [4].
Gallery
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References
- [1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 27.2.2 „Diode Zener produse în R.S.R.” (producător: I.P.R.S. – Băneasa), „Diode Zener de 1 W (1 N...), 4 W (4 DZ...), 10 W (10 DZ...) și 20 W (20 DZ...)”, pp. 507–508
- [2]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 27.2 „Diode stabilizatoare de tensiune (ZENER)”, „Caracteristici tehnice”, „Codificarea unor diode Zener (cu puteri disipate ≥ 1 W) produse de IPRS – Băneasa (conf. NTR 19036-80)”, p. 503
- [3]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.9.2.2 „Diode stabilizatoare de tensiune (Zener)”, „Diode Zener de 1 W (1 N...), 4 W (4 DZ...), 10 W (10 DZ...) și 20 W (20 DZ...)”, p. 444
- [4]I.P.R.S. Băneasa – „Full Line Condensed Catalog”, 1990, section 5 „Silicon diodes”, „Zener”, „20 W @ TC = 25 °C voltage regulator diodes”, p. 5-18